/* ========================================
   Before Knowing
   Editorial Design System

   Font families (4):
   - Cormorant Garamond: Display headings
   - Source Serif 4: Body text
   - Inter: UI elements
   - IBM Plex Mono: Data & metrics
   ======================================== */

:root {
    /* Colors */
    --color-bg: #F6F5F3;
    --color-bg-warm: #EFEEE9;
    --color-bg-alt: #E6E4DF;
    --color-surface: #EFEEE9;
    --color-text: #1C1B1A;
    --color-text-secondary: #52504A;
    --color-text-tertiary: #635F58; /* 4.6:1 contrast */
    --color-accent: #2B5470;
    --color-accent-light: #3A6D8A;
    --color-accent-muted: rgba(43, 84, 112, 0.08);
    --color-border: #D4D2CC;
    --color-border-strong: #BEB9B2;
    --color-error: #c53030;
    --color-error-muted: rgba(197, 48, 48, 0.15);

    /* Shadows */
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-elevated: 0 4px 20px rgba(0, 0, 0, 0.15);

    /* Warning colors */
    --color-warning-caution-bg: rgba(214, 158, 46, 0.08);
    --color-warning-caution-border: #D69E2E;
    --color-warning-caution-text: #B7791F;
    --color-warning-danger-bg: rgba(197, 48, 48, 0.08);
    --color-warning-danger-border: #C53030;
    --color-warning-danger-text: #C53030;
    
    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Source Serif 4', Georgia, serif;
    --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'IBM Plex Mono', 'SF Mono', Consolas, monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 5rem;
    --space-2xl: 7rem;
    
    /* Layout */
    --header-height: 60px;
    --max-width-narrow: 600px;
    --max-width-content: 840px;
    --max-width-wide: 1200px;
    
    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-quad: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --duration-fast: 0.2s;
    --duration-medium: 0.4s;
    --duration-slow: 0.8s;
    
    /* Border Radius */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-full: 50%;

    /* Grain Overlay */
    --grain-opacity: 0.02;

    /* Theme toggle icon visibility */
    --icon-sun-display: none;
    --icon-moon-display: block;

    /* Z-Index Scale */
    --z-base: 0;
    --z-above: 1;
    --z-dropdown: 50;
    --z-sticky: 100;
    --z-drawer: 200;
    --z-modal: 300;
    --z-modal-backdrop: 299;
    --z-overlay: 1000;
    --z-toast: 9999;
}

:root {
    --color-bg-dark: #0F1215;
    --color-bg-warm-dark: #141820;
    --color-bg-alt-dark: #1A1E26;
    --color-surface-dark: #1A1E26;
    --color-text-dark: #E4E6EB;
    --color-text-secondary-dark: #9AA0AC;
    --color-text-tertiary-dark: #8A90A0; /* 5.5:1 contrast on #0F1215 */
    --color-accent-dark: #5A9BD4;
    --color-accent-light-dark: #7BB5E8;
    --color-accent-muted-dark: rgba(90, 155, 212, 0.1);
    --color-border-dark: #2A2E38;
    --color-border-strong-dark: #3A4048;
    --color-error-dark: #fc8181;
    --color-error-muted-dark: rgba(252, 129, 129, 0.15);
    --color-warning-caution-bg-dark: rgba(214, 158, 46, 0.12);
    --color-warning-caution-border-dark: #D4A017;
    --color-warning-caution-text-dark: #ECC94B;
    --color-warning-danger-bg-dark: rgba(252, 129, 129, 0.12);
    --color-warning-danger-border-dark: #fc8181;
    --color-warning-danger-text-dark: #fc8181;
    --grain-opacity-dark: 0.012;
    --shadow-hover-dark: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-elevated-dark: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* ========================================
   Dark Mode
   Both blocks below must stay in sync — the media query prevents
   flash-of-light-mode before theme.js runs; [data-theme] handles
   the manual toggle. This duplication is inherent to vanilla CSS
   without a build step.
   ======================================== */

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-bg: var(--color-bg-dark);
        --color-bg-warm: var(--color-bg-warm-dark);
        --color-bg-alt: var(--color-bg-alt-dark);
        --color-surface: var(--color-surface-dark);
        --color-text: var(--color-text-dark);
        --color-text-secondary: var(--color-text-secondary-dark);
        --color-text-tertiary: var(--color-text-tertiary-dark);
        --color-accent: var(--color-accent-dark);
        --color-accent-light: var(--color-accent-light-dark);
        --color-accent-muted: var(--color-accent-muted-dark);
        --color-border: var(--color-border-dark);
        --color-border-strong: var(--color-border-strong-dark);
        --color-error: var(--color-error-dark);
        --color-error-muted: var(--color-error-muted-dark);
        --color-warning-caution-bg: var(--color-warning-caution-bg-dark);
        --color-warning-caution-border: var(--color-warning-caution-border-dark);
        --color-warning-caution-text: var(--color-warning-caution-text-dark);
        --color-warning-danger-bg: var(--color-warning-danger-bg-dark);
        --color-warning-danger-border: var(--color-warning-danger-border-dark);
        --color-warning-danger-text: var(--color-warning-danger-text-dark);
        --grain-opacity: var(--grain-opacity-dark);
        --shadow-hover: var(--shadow-hover-dark);
        --shadow-elevated: var(--shadow-elevated-dark);
        --icon-sun-display: block;
        --icon-moon-display: none;
    }
    
    :root:not([data-theme="light"]) a:focus-visible,
    :root:not([data-theme="light"]) button:focus-visible,
    :root:not([data-theme="light"]) [tabindex]:focus-visible {
        outline-color: var(--color-accent-light);
    }
}

[data-theme="dark"] {
    --color-bg: var(--color-bg-dark);
    --color-bg-warm: var(--color-bg-warm-dark);
    --color-bg-alt: var(--color-bg-alt-dark);
    --color-surface: var(--color-surface-dark);
    --color-text: var(--color-text-dark);
    --color-text-secondary: var(--color-text-secondary-dark);
    --color-text-tertiary: var(--color-text-tertiary-dark);
    --color-accent: var(--color-accent-dark);
    --color-accent-light: var(--color-accent-light-dark);
    --color-accent-muted: var(--color-accent-muted-dark);
    --color-border: var(--color-border-dark);
    --color-border-strong: var(--color-border-strong-dark);
    --color-error: var(--color-error-dark);
    --color-error-muted: var(--color-error-muted-dark);
    --color-warning-caution-bg: var(--color-warning-caution-bg-dark);
    --color-warning-caution-border: var(--color-warning-caution-border-dark);
    --color-warning-caution-text: var(--color-warning-caution-text-dark);
    --color-warning-danger-bg: var(--color-warning-danger-bg-dark);
    --color-warning-danger-border: var(--color-warning-danger-border-dark);
    --color-warning-danger-text: var(--color-warning-danger-text-dark);
    --grain-opacity: var(--grain-opacity-dark);
    --shadow-hover: var(--shadow-hover-dark);
    --shadow-elevated: var(--shadow-elevated-dark);
    --icon-sun-display: block;
    --icon-moon-display: none;
}

[data-theme="dark"] a:focus-visible,
[data-theme="dark"] button:focus-visible,
[data-theme="dark"] [tabindex]:focus-visible {
    outline-color: var(--color-accent-light);
}

/* [data-theme="light"] intentionally omitted → uses :root defaults */

/* ========================================
   Reset & Base
   ======================================== */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Subtle tap highlight on touch devices */
a, button, [role="button"], summary, [tabindex] {
    -webkit-tap-highlight-color: rgba(43, 84, 112, 0.12);
}

/* Global focus styles — keyboard users only */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

a:focus:not(:focus-visible),
button:focus:not(:focus-visible),
[tabindex]:focus:not(:focus-visible) {
    outline: none;
}

/* Active states for immediate touch feedback */
.entry-link:active {
    border-color: var(--color-accent);
    background: var(--color-accent-muted);
}

.header-back:active {
    color: var(--color-accent);
}

.toc-toggle:active {
    border-color: var(--color-accent);
    background: var(--color-accent-muted);
}

.footer-link:active,
.footer-center-link:active {
    color: var(--color-accent);
}

html {
    font-size: 18px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.75;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: var(--z-overlay);
    opacity: var(--grain-opacity);
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

::selection {
    background-color: var(--color-accent);
    color: white;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

ul {
    list-style: none;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    font-family: var(--font-ui);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    z-index: var(--z-toast);
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 0;
    outline: none;
}

/* ========================================
   Site Header
   ======================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding: 0.6rem var(--space-lg);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    width: 100%;
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.header-label {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-secondary);
    white-space: nowrap;
}

.header-updated {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--color-text-tertiary);
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.header-back {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--duration-fast) ease;
    white-space: nowrap;
}

@media (hover: hover) {
    .header-back:hover {
        color: var(--color-text);
    }
}

.header-back svg {
    opacity: 0.6;
    transition: opacity var(--duration-fast) ease;
}

@media (hover: hover) {
    .header-back:hover svg {
        opacity: 1;
    }
}

/* ========================================
   Index Page
   ======================================== */

.index-main {
    padding-top: var(--header-height);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.index-container {
    flex: 1;
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: var(--space-lg);
    width: 100%;
}

/* Hero Intro */
.hero-intro {
    position: relative;
    z-index: 10;
    max-width: var(--max-width-content);
    margin: 0 auto var(--space-xl) auto;
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 400;
    color: var(--color-text);
    margin: 0 0 var(--space-md) 0;
    letter-spacing: -0.02em;
    line-height: 1.1;
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    animation: revealUp 0.9s var(--ease-out-expo) 0.1s forwards;
}

.hero-content {
    max-width: 680px;
    margin: 0 auto;
}

.hero-content p {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin: 0 0 1rem 0;
    opacity: 0;
    transform: translateY(30px);
    animation: revealUp 0.9s var(--ease-out-expo) forwards;
}

.hero-content p:nth-child(1) { 
    animation-delay: 0.2s;
    font-size: 1.15rem;
    color: var(--color-text);
}
.hero-content p:nth-child(2) { animation-delay: 0.3s; }
.hero-content p:nth-child(3) { animation-delay: 0.4s; }
.hero-content p:nth-child(4) { animation-delay: 0.5s; }

.hero-content p:last-child {
    margin-bottom: 0;
}

.hero-ornament {
    text-align: center;
    margin: var(--space-lg) auto var(--space-md) auto;
    opacity: 0;
    animation: revealUp 0.9s var(--ease-out-expo) 0.6s forwards;
}

.hero-ornament::before {
    content: "···";
    color: var(--color-border-strong);
    font-size: 1.25rem;
    letter-spacing: 0.5em;
    opacity: 0.4;
}

.hero-search {
    position: relative;
    z-index: 100;
    margin-top: var(--space-md);
    max-width: 360px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    transform: translateY(30px);
    animation: revealUp 0.9s var(--ease-out-expo) 0.7s forwards;
}

.hero-search input {
    width: 100%;
    padding: 0.7rem 1rem;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: border-color var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
}

.hero-search input::placeholder {
    color: var(--color-text-tertiary);
}

.hero-search input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-muted);
}

.hero-search input:focus:not(:focus-visible) {
    outline: none;
}

.hero-link {
    color: var(--color-accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--duration-fast) ease;
}

@media (hover: hover) {
    .hero-link:hover {
        border-bottom-color: var(--color-accent);
    }
}

/* Search Results */
.search-results {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 0.5rem;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    max-height: 400px;
    overflow-y: auto;
    z-index: var(--z-dropdown);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.search-result {
    display: block;
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    font: inherit;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--color-border);
    cursor: pointer;
}

.search-result:last-child {
    border-bottom: none;
}

@media (hover: hover) {
    .search-result:hover {
        background: var(--color-bg-alt);
    }
}

.search-result:focus-visible {
    background: var(--color-bg-alt);
    outline: 2px solid var(--color-accent);
    outline-offset: -2px;
}

.search-result:active {
    background: var(--color-bg-alt);
}

.search-result-entry {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.search-result-snippet {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.4;
}

.search-result-snippet mark {
    background: transparent;
    color: var(--color-text);
    font-weight: 500;
}

.search-no-results {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    text-align: center;
    padding: var(--space-md) 0;
}

@keyframes revealUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Index Grid */
.index-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-lg);
}

/* Index Sections */
.index-section {
    opacity: 0;
    transform: translateY(30px);
    animation: revealUp 0.9s var(--ease-out-expo) forwards;
}

.index-section:nth-child(1) { animation-delay: 0.8s; }
.index-section:nth-child(2) { animation-delay: 0.9s; }
.index-section:nth-child(3) { animation-delay: 1.0s; }
.index-section:nth-child(4) { animation-delay: 1.1s; }
.index-section:nth-child(5) { animation-delay: 1.2s; }

.section-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-xs);
    border-bottom: 1px solid var(--color-border);
}

.section-num {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-accent);
    letter-spacing: 0.05em;
}

.section-header .section-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

/* Entry List */
.entry-list li {
    border-bottom: 1px solid var(--color-border);
}

.entry-list li:last-child {
    border-bottom: none;
}

.entry-link {
    display: block;
    padding: 0.75rem 0;
    transition: all var(--duration-fast) ease;
}

@media (hover: hover) {
    .entry-link:hover {
        background: var(--color-accent-muted);
        margin: 0 -0.75rem;
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
}

.entry-title {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    display: block;
    margin-bottom: 0.15rem;
}

.entry-brief {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    display: block;
    line-height: 1.5;
}

.entry-link.read .entry-title::after {
    content: ' ✓';
    font-size: 0.7rem;
    color: var(--color-accent);
}

/* ========================================
   Planner Card (Index Page)
   ======================================== */

.planner-card {
    display: block;
    text-decoration: none;
    color: inherit;
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
    max-width: var(--max-width-content);
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    transform: translateY(30px);
    animation: revealUp 0.9s var(--ease-out-expo) 1.4s forwards;
}

.planner-card-inner {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--duration-fast) ease;
}

@media (hover: hover) {
    .planner-card:hover .planner-card-inner {
        border-color: var(--color-accent);
    }

    .planner-card:hover .planner-card-icon {
        color: var(--color-accent);
        opacity: 1;
    }
}

.planner-card:active .planner-card-inner {
    border-color: var(--color-accent);
    background: var(--color-accent-muted);
}

.planner-card-text {
    flex: 1;
}

.planner-card-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 500;
    margin-bottom: 0.2rem;
}

.planner-card-desc {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.planner-card-icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    color: var(--color-text-tertiary);
    opacity: 0.6;
    transition: color var(--duration-fast) ease, opacity var(--duration-fast) ease;
    margin-top: 0.2rem;
}

@media (max-width: 768px) {
    .planner-card-inner {
        padding: var(--space-sm);
    }
}

/* ========================================
   Footer
   ======================================== */

.site-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    max-width: var(--max-width-wide);
    margin: 0 auto;
}

.footer-center-link {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
    text-decoration: none;
    letter-spacing: 0.02em;
    transition: color var(--duration-fast) ease;
}

@media (hover: hover) {
    .footer-center-link:hover {
        color: var(--color-text-secondary);
    }
}

.footer-link {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: color var(--duration-fast) ease;
}

@media (hover: hover) {
    .footer-link:hover {
        color: var(--color-accent);
    }
}

.footer-link[aria-current="page"] {
    color: var(--color-text);
    font-weight: 500;
}

/* ========================================
   Theme Toggle
   ======================================== */

.theme-toggle {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--duration-fast) ease,
                border-color var(--duration-fast) ease;
    z-index: var(--z-dropdown);
}

@media (hover: hover) {
    .theme-toggle:hover {
        background: var(--color-bg-alt);
        border-color: var(--color-border-strong);
    }
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
    color: var(--color-text-secondary);
}

.theme-toggle .icon-sun {
    display: var(--icon-sun-display);
}

.theme-toggle .icon-moon {
    display: var(--icon-moon-display);
}

/* Mobile Theme Toggle (in reading header on small screens) */
.mobile-theme-toggle {
    display: none;
}

.mobile-theme-toggle .icon-sun {
    display: var(--icon-sun-display);
}

.mobile-theme-toggle .icon-moon {
    display: var(--icon-moon-display);
}

/* ========================================
   Reader View
   ======================================== */

.view-reader {
    min-height: 100vh;
}

.reading-page .site-header {
    display: none;
}

/* Progress bar */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--color-accent);
    z-index: var(--z-drawer);
    transition: width 0.1s linear;
}

/* Reading Header */
.reading-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(0);
    transition: transform var(--duration-medium) var(--ease-out-expo);
}

.reading-header.hidden {
    transform: translateY(-100%);
}

.reading-header-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 0.6rem var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.reading-header-title {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
}

.reading-header-section {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
}

.reading-header-nav {
    display: flex;
    gap: var(--space-sm);
}

.reading-header-nav button {
    background: none;
    border: 1px solid var(--color-border);
    padding: 0.4rem 0.8rem;
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--duration-fast) ease;
}

@media (hover: hover) {
    .reading-header-nav button:hover:not(:disabled) {
        border-color: var(--color-text);
        color: var(--color-text);
    }
}

.reading-header-nav button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.reading-header-nav button:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.reading-header-nav button:focus:not(:focus-visible) {
    outline: none;
}

/* TOC Drawer */

.toc-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 460px;
    max-width: 90vw;
    background-color: var(--color-bg);
    border-right: 1px solid var(--color-border);
    z-index: var(--z-modal);
    transform: translateX(-100%);
    transition: transform var(--duration-medium) var(--ease-out-expo);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.toc-drawer.open {
    transform: translateX(0);
}

.toc-drawer-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--duration-medium) ease, visibility var(--duration-medium) ease;
}

.toc-drawer-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.toc-drawer-header {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toc-drawer-header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.toc-drawer-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
}

.toc-drawer-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    line-height: 1;
}

.toc-drawer-progress {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.toc-progress-text {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.toc-progress-bar {
    height: 3px;
    background: var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.toc-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

.toc-drawer-search {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.toc-drawer-search input {
    width: 100%;
    padding: 0.6rem 0.8rem;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    outline: none;
    transition: border-color var(--duration-fast) ease;
}

.toc-drawer-search input::placeholder {
    color: var(--color-text-tertiary);
}

.toc-drawer-search input:focus {
    border-color: var(--color-accent);
}

.toc-drawer-search input:focus:not(:focus-visible) {
    outline: none;
}

.toc-search-results {
    display: none;
    padding: var(--space-md) var(--space-lg);
    max-height: 60vh;
    overflow-y: auto;
}

.toc-search-results .search-result {
    padding: 0.6rem 0;
}

@media (hover: hover) {
    .toc-search-results .search-result:hover {
        background: var(--color-bg-alt);
    }
}

.toc-drawer-content {
    padding: var(--space-lg);
    overflow-y: auto;
    flex: 1;
}

.toc-drawer-part {
    margin-bottom: var(--space-lg);
}


.toc-drawer-part-title {
    font-family: var(--font-ui);
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-sm);
}

.toc-drawer-sections {
    list-style: none;
}

.toc-drawer-sections a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-bottom: 1px solid var(--color-border);
    transition: color var(--duration-fast) ease;
}

@media (hover: hover) {
    .toc-drawer-sections a:hover {
        color: var(--color-text);
    }
}

.toc-drawer-sections a.active {
    color: var(--color-text);
    font-weight: 500;
}

.toc-section-title {
    flex: 1;
}

.toc-section-check {
    color: var(--color-accent);
}

.toc-drawer-sections a.read .toc-section-check {
    display: inline;
}

.toc-drawer-sections a:not(.read) .toc-section-check {
    display: none;
}

.toc-drawer-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--color-border);
    margin-top: auto;
}

.toc-drawer-sources-link {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--duration-fast) ease;
}

@media (hover: hover) {
    .toc-drawer-sources-link:hover {
        color: var(--color-accent);
    }
}

/* TOC Toggle Button */
.toc-toggle {
    position: fixed;
    bottom: var(--space-lg);
    left: var(--space-lg);
    z-index: var(--z-sticky);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--duration-fast) ease;
}

@media (hover: hover) {
    .toc-toggle:hover {
        border-color: var(--color-text);
    }
}

/* Reader Content */

.reader-content {
    padding-top: var(--header-height);
}

.section {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: var(--space-2xl) var(--space-lg);
}

.section-meta {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.section-part {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-xs);
}

.section-number {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.section-lede {
    font-family: var(--font-body);
    font-size: 1.15rem;
    font-style: italic;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Section ornament */
.section-ornament {
    text-align: center;
    margin-bottom: var(--space-md);
    color: var(--color-border-strong);
    font-size: 1.25rem;
    letter-spacing: 0.5em;
    opacity: 0.4;
}

.section-ornament::before {
    content: "···";
}

/* Section Content */
.section-content {
    font-size: 1.125rem;
    line-height: 1.85;
    transition: opacity 0.15s ease;
}

.section-content.loading {
    opacity: 0.5;
}

.section-content h2 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 600;
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
}

.section-content p {
    margin-bottom: 1.5em;
}

.section-content p:last-child {
    margin-bottom: 0;
}

.section-content p strong {
    font-weight: 600;
}

.section-content ul,
.section-content ol {
    margin: 1em 0 1.5em 0;
    padding-left: 1.5em;
    list-style: disc;
}

.section-content li {
    margin-bottom: 0.6em;
    line-height: 1.7;
}

.section-content li:last-child {
    margin-bottom: 0;
}

.section-content ul ul {
    margin: 0.5em 0 0.5em 0;
    list-style: circle;
}

.section-content ul ul li {
    margin-bottom: 0.4em;
}

.section-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-color: var(--color-accent);
    text-underline-offset: 3px;
    transition: text-decoration-color var(--duration-fast) ease;
}

@media (hover: hover) {
    .section-content a:hover {
        text-decoration-color: transparent;
    }
}

/* Entry Navigation (bottom of reader) */

.entry-nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--space-lg) var(--space-2xl);
}

.entry-nav-link {
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-decoration: none;
    padding: var(--space-lg) var(--space-md);
    background-color: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    min-height: 120px;
    transition: all var(--duration-medium) var(--ease-out-expo);
}

@media (hover: hover) {
    .entry-nav-link:hover {
        border-color: var(--color-accent);
        background-color: var(--color-bg-alt);
        transform: translateY(-2px);
        box-shadow: var(--shadow-hover);
    }
}

.entry-nav-link:active {
    background-color: var(--color-bg-alt);
    border-color: var(--color-accent);
}

.entry-nav-link.prev {
    text-align: left;
}

.entry-nav-link.next {
    text-align: right;
}

.entry-nav-link.finished {
    background-color: var(--color-bg-alt);
    border-color: var(--color-accent);
}

.entry-nav-link.finished .entry-nav-label {
    color: var(--color-text-secondary);
}

.entry-nav-label {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.entry-nav-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    color: var(--color-text);
    line-height: 1.3;
}

.entry-nav-placeholder {
}

/* ========================================
   Responsive - Index & Reader
   ======================================== */

@media (max-width: 768px) {
    html {
        font-size: 16px;
    }
    
    .site-header {
        padding: 0.6rem var(--space-md);
    }
    
    .index-container {
        padding: var(--space-md);
    }
    
    .index-grid {
        grid-template-columns: 1fr;
    }
    
    .site-footer {
        padding: var(--space-lg) var(--space-md);
    }
    
    .theme-toggle {
        bottom: var(--space-md);
        right: var(--space-md);
    }
    
    .reading-header-inner {
        padding: 0.6rem var(--space-md);
    }
    
    .reading-header-section {
        display: none;
    }
    
    .section {
        padding: calc(60px + var(--space-lg)) var(--space-md) var(--space-lg);
    }
    
    .section-title {
        font-size: clamp(1.75rem, 6vw, 2.25rem);
    }
    
    .toc-toggle {
        display: none;
    }
    
    .toc-drawer {
        width: 100%;
        max-width: 100%;
    }
    
    .entry-nav-grid {
        grid-template-columns: 1fr;
        padding: 0 var(--space-md) var(--space-xl);
    }
    
    .entry-nav-link.next {
        text-align: left;
    }
    
    .toc-drawer-header {
        padding: var(--space-md);
    }
    
    .toc-drawer-content {
        padding: var(--space-md);
    }
    
    .toc-drawer-search {
        padding: var(--space-sm) var(--space-md);
    }
    
    .reading-header-nav {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
    
    .reading-header-nav button {
        min-width: 44px;
        min-height: 44px;
        padding: 0.5rem 0.75rem;
    }
    
    /* Hide floating toggle on mobile reading page — use header toggle instead */
    .reading-page .theme-toggle {
        display: none;
    }
    
    .mobile-theme-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        background: none;
        border: 1px solid var(--color-border);
        padding: 0.5rem;
        min-width: 44px;
        min-height: 44px;
        cursor: pointer;
        color: var(--color-text-secondary);
    }
    
    .mobile-theme-toggle svg {
        width: 18px;
        height: 18px;
    }
    
    .section-content p {
        font-size: 1rem;
    }
    
    .section-content ul li,
    .section-content ol li {
        font-size: 1rem;
    }
}

/* ========================================
   Paragraph Deep-Linking
   ======================================== */

.linkable-paragraph {
    cursor: pointer;
    transition: background-color 0.3s ease;
    border-radius: var(--radius-md);
    margin-left: -0.5rem;
    margin-right: -0.5rem;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
}

@media (hover: hover) {
    .linkable-paragraph:hover {
        background-color: var(--color-accent-muted);
    }
}

.linkable-paragraph:focus {
    outline: none;
    background-color: var(--color-accent-muted);
}

.linkable-paragraph:focus:not(:focus-visible) {
    outline: none;
}

.linkable-paragraph:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    background-color: var(--color-accent-muted);
}

.paragraph-linked {
    background-color: var(--color-accent-muted) !important;
}

.paragraph-highlighted {
    background-color: var(--color-accent-muted);
    animation: highlightFade 2s ease-out forwards;
}

@keyframes highlightFade {
    0% { background-color: var(--color-accent-muted); }
    100% { background-color: transparent; }
}

/* ========================================
   Copy Toast
   ======================================== */

.copy-toast {
    position: fixed;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--color-text);
    color: var(--color-bg);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-family: var(--font-ui);
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity var(--duration-fast) ease, transform var(--duration-fast) ease;
    z-index: var(--z-toast);
    pointer-events: none;
}

.copy-toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ========================================
   Resume Reading Prompt
   ======================================== */

.resume-prompt {
    position: fixed;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    z-index: var(--z-modal);
    opacity: 0;
    transition: opacity var(--duration-medium) ease, transform var(--duration-medium) ease;
    max-width: 90vw;
    white-space: nowrap;
}

.resume-prompt.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.resume-prompt p {
    font-family: var(--font-ui);
    font-size: 0.9rem;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
    text-align: center;
}

.resume-prompt strong {
    color: var(--color-accent);
}

.resume-actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
}

.resume-actions button {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast) ease;
}

.resume-yes {
    background: var(--color-accent);
    color: white;
    border: none;
}

.resume-yes:hover {
    background: var(--color-accent-light);
}

.resume-no {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.resume-no:hover {
    border-color: var(--color-text-secondary);
    color: var(--color-text);
}

/* ========================================
   Reduced Motion
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .hero-title,
    .hero-content p,
    .hero-ornament,
    .hero-search,
    .index-section {
        opacity: 1;
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .toc-drawer {
        transition: none;
    }
    
    .toc-drawer-overlay {
        transition: none;
    }
    
    .reading-header {
        transition: none;
    }
    
    .section-content {
        transition: none;
    }
}

/* ========================================
   Print Styles
   ======================================== */

@media print {
    /* Reset to light theme for printing */
    :root {
        --color-bg: #ffffff !important;
        --color-bg-warm: #f5f5f5 !important;
        --color-bg-alt: #eeeeee !important;
        --color-text: #1a1a1a !important;
        --color-text-secondary: #4a4a4a !important;
        --color-text-tertiary: #6a6a6a !important;
        --color-accent: #2c5aa0 !important;
        --color-border: #e0e0e0 !important;
        --color-border-strong: #cccccc !important;
    }
    
    .site-header,
    .reading-header,
    .reading-progress,
    .toc-toggle,
    .toc-drawer,
    .toc-drawer-overlay,
    .hero-search,
    .resume-prompt,
    .copy-toast,
    .theme-toggle,
    .mobile-theme-toggle,
    .skip-link,
    .grain-overlay,
    .entry-nav-grid {
        display: none !important;
    }
    
    body,
    .section,
    .section-content {
        background: white !important;
        color: black !important;
    }
    
    body {
        font-size: 11pt;
        line-height: 1.5;
    }
    
    .view-reader {
        display: block !important;
    }
    
    .reader-content {
        padding-top: 0;
    }
    
    .section {
        max-width: 100%;
        padding: 0;
        margin: 0;
    }
    
    .section-content {
        font-size: 11pt;
    }
    
    .section-content h1,
    .section-content h2,
    .section-content h3 {
        break-after: avoid;
        page-break-after: avoid;
    }
    
    .section-content p {
        font-size: 11pt;
        margin-bottom: 1em;
        orphans: 3;
        widows: 3;
    }
    
    .section-content ul li,
    .section-content ol li {
        font-size: 11pt;
    }
    
    .section-title {
        font-size: 18pt;
    }
    
    .section-content a {
        color: black;
        text-decoration: underline;
    }
    
    .section-content a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
        word-break: break-all;
    }
    
    /* Don't print URLs for internal links */
    a[href^="#"]::after,
    a[href^="index"]::after,
    a[href^="contact"]::after,
    a[href^="planner"]::after {
        content: none;
    }
    
    .section-content blockquote,
    .section-content pre,
    .section-content figure {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .section-meta {
        page-break-after: avoid;
    }
    
    .section-ornament {
        display: none;
    }
    
    @page {
        margin: 1in;
        size: letter;
    }
    
    @page :first {
        margin-top: 1.5in;
    }
}

/* ========================================
   Secondary Pages
   (Contact, standalone pages)
   ======================================== */

.hidden {
    display: none !important;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.page-main {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-md) var(--space-lg);
}

.page-main--narrow {
    max-width: var(--max-width-narrow);
}

@media (max-width: 768px) {
    .page-main {
        padding: calc(var(--header-height) + var(--space-lg)) var(--space-md) var(--space-md);
    }
}

.page-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.page-ornament {
    text-align: center;
    margin-bottom: var(--space-md);
    color: var(--color-border-strong);
    font-size: 1.25rem;
    letter-spacing: 0.5em;
    opacity: 0.4;
}

.page-ornament::before {
    content: "···";
}

.page-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: var(--space-md);
}

@media (max-width: 600px) {
    .page-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
    }
}

.page-intro {
    font-family: var(--font-body);
    font-size: 1.125rem;
    line-height: 1.85;
    color: var(--color-text-secondary);
}

/* ========================================
   Contact Page
   ======================================== */

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-label {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-secondary);
}

.form-input,
.form-textarea {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.5;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
    min-height: 160px;
    resize: vertical;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-muted);
}

.form-input[aria-invalid="true"],
.form-textarea[aria-invalid="true"] {
    border-color: var(--color-error);
}

.form-input[aria-invalid="true"]:focus,
.form-textarea[aria-invalid="true"]:focus {
    box-shadow: 0 0 0 3px var(--color-error-muted);
}

.form-submit {
    font-family: var(--font-ui);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-text);
    color: var(--color-bg);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: opacity var(--duration-fast) ease, transform var(--duration-fast) ease;
}

@media (hover: hover) {
    .form-submit:hover {
        opacity: 0.9;
    }
}

.form-submit:active {
    transform: scale(0.98);
}

.form-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-note {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    line-height: 1.5;
    margin-top: var(--space-sm);
}

.form-error {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    color: var(--color-error);
    margin-top: var(--space-xs);
}

.success-message {
    display: none;
    padding: var(--space-lg);
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
}

.success-message.visible {
    display: block;
}

.success-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.success-text {
    font-family: var(--font-body);
    color: var(--color-text-secondary);
}

/* ========================================
   Trade Planner (planner.html)
   ======================================== */

/* Trade Planner - Layout */

.planner-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.planner-header {
    position: sticky;
    top: 0;
    z-index: calc(var(--z-sticky) + 2);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.planner-header-inner {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.planner-home {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.planner-home-chevron {
    opacity: 0.5;
    transition: opacity var(--duration-fast) ease;
}

@media (hover: hover) {
    .planner-home:hover {
        color: var(--color-text);
    }

    .planner-home:hover .planner-home-chevron {
        opacity: 1;
    }
}

.planner-home-label {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.planner-header-btn {
    background: none;
    border: 1px solid var(--color-border);
    padding: 0.35rem 0.75rem;
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--duration-fast) ease;
}

@media (hover: hover) {
    .planner-header-btn:hover {
        border-color: var(--color-text);
        color: var(--color-text);
    }
}

.planner-toolbar {
    position: sticky;
    top: var(--header-height);
    z-index: calc(var(--z-sticky) + 1);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.planner-toolbar-inner {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0.6rem var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.planner-toolbar-actions {
    display: flex;
    gap: var(--space-xs);
}

.planner-main {
    flex: 1;
    max-width: var(--max-width-content);
    width: 100%;
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg) var(--space-lg);
}

.planner-notice {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
    line-height: 1.4;
    text-align: center;
    margin: var(--space-sm) auto 0;
    max-width: var(--max-width-wide);
}

/* Step Navigation */

.step-nav {
    display: flex;
    gap: 2px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.step-nav-item {
    flex: 1;
    padding: 0.6rem 0.5rem;
    font-family: var(--font-ui);
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    text-align: center;
    background: var(--color-bg-warm);
    color: var(--color-text-tertiary);
    border: none;
    cursor: pointer;
    transition: all var(--duration-fast) ease;
    position: relative;
    white-space: nowrap;
}

.step-nav-item.active {
    background: var(--color-accent);
    color: #fff;
}

.step-nav-item.completed {
    background: var(--color-bg-alt);
    color: var(--color-accent);
    border-bottom: 2px solid var(--color-accent);
}

.step-nav-item.completed::after {
    content: ' ✓';
    font-size: 0.55rem;
    vertical-align: middle;
}

/* Step Panels */

.step-panel {
    display: none;
}

.step-panel.active {
    display: block;
}

.step-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.step-subtitle {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.step-ref {
    font-size: 1.1rem;
    color: var(--color-accent);
    text-decoration: none;
    opacity: 0.4;
    transition: opacity var(--duration-fast) ease;
    vertical-align: baseline;
}

@media (hover: hover) {
    .step-ref:hover {
        opacity: 1;
    }
}

/* Form Elements */

.field-group {
    margin-bottom: 1.5rem;
}

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.field-label {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 0.4rem;
    letter-spacing: 0.02em;
}

.target-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-accent);
    background: none;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast) ease;
    margin-bottom: 1.5rem;
}

@media (hover: hover) {
    .target-add-btn:hover {
        border-color: var(--color-accent);
        background: var(--color-accent-muted);
    }
}

.target-header {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.target-remove {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.2rem 0.4rem;
}

@media (hover: hover) {
    .target-remove:hover {
        color: #C53030;
    }
}

.field-input,
.field-select,
.field-textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--duration-fast) ease;
    box-sizing: border-box;
    resize: vertical;
    min-height: 80px;
}

.field-input:focus,
.field-select:focus,
.field-textarea:focus {
    border-color: var(--color-accent);
}

.field-input:focus:not(:focus-visible),
.field-select:focus:not(:focus-visible),
.field-textarea:focus:not(:focus-visible) {
    outline: none;
}

.field-input:focus-visible,
.field-select:focus-visible,
.field-textarea:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 1px;
}

.field-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' fill='none' stroke='%234A5568' stroke-width='1.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2rem;
    cursor: pointer;
}

.field-input[type="number"] {
    -moz-appearance: textfield;
}

.field-input[type="number"]::-webkit-outer-spin-button,
.field-input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.field-prefix {
    position: relative;
}

.field-prefix::before {
    content: attr(data-prefix);
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    pointer-events: none;
    z-index: 1;
}

.field-prefix .field-input {
    padding-left: 1.5rem;
}

.field-suffix {
    position: relative;
}

.field-suffix::after {
    content: attr(data-suffix);
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
    pointer-events: none;
}

.field-suffix .field-input {
    padding-right: 2rem;
}

/* Computed Output */

.computed-section {
    margin-top: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.computed-title {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.computed-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem 1.5rem;
}

.computed-item {
    display: flex;
    flex-direction: column;
}

.computed-label {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
    margin-bottom: 0.15rem;
}

.computed-value {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
}

.computed-value.positive {
    color: #2D8A4E;
}

.computed-value.negative {
    color: #C53030;
}

.computed-value.warn {
    color: #D69E2E;
}

.computed-divider {
    grid-column: 1 / -1;
    height: 1px;
    background: var(--color-border);
    margin: 0.25rem 0;
}

/* Warning / Info Banners */

.plan-warning {
    padding: 0.6rem 0.75rem;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    line-height: 1.4;
    border-radius: var(--radius-md);
    margin-top: 1rem;
    border-left: 3px solid;
}

.plan-warning.caution {
    background: var(--color-warning-caution-bg);
    border-color: var(--color-warning-caution-border);
    color: var(--color-warning-caution-text);
}

.plan-warning.danger {
    background: var(--color-warning-danger-bg);
    border-color: var(--color-warning-danger-border);
    color: var(--color-warning-danger-text);
}

/* Targets (Exit Architecture) */

.target-block {
    padding: var(--space-sm);
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.target-computed {
    display: flex;
    gap: 1.5rem;
    margin-top: 0.75rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border);
}

.target-stat {
    display: flex;
    flex-direction: column;
}

.target-stat-label {
    font-family: var(--font-ui);
    font-size: 0.65rem;
    color: var(--color-text-tertiary);
}

.target-stat-value {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text);
}

/* Step Navigation Buttons */

.step-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-lg);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-border);
}

.step-btn {
    padding: 0.6rem 1.5rem;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-fast) ease;
    border: 1px solid var(--color-border);
    background: none;
    color: var(--color-text-secondary);
}

@media (hover: hover) {
    .step-btn:hover {
        border-color: var(--color-text);
        color: var(--color-text);
    }
}

.step-btn.next {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

@media (hover: hover) {
    .step-btn.next:hover {
        background: var(--color-accent-light);
        border-color: var(--color-accent-light);
    }
}

.step-btn.hidden {
    visibility: hidden;
}

/* Summary Panel */

.summary-plan {
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text);
}

.summary-section {
    margin-bottom: var(--space-md);
}

.summary-section-title {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid var(--color-border);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 0.3rem 0;
    font-size: 0.9rem;
}

.summary-row-label {
    color: var(--color-text-secondary);
}

.summary-row-value {
    font-family: var(--font-mono);
    font-weight: 500;
    color: var(--color-text);
}

.summary-text {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.5;
    margin: 0.25rem 0;
}

.summary-actions {
    display: flex;
    gap: var(--space-xs);
    margin-top: var(--space-lg);
}

/* Saved Plans */

.saved-plans-toggle {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-top: var(--space-lg);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.saved-plans-list {
    margin-top: var(--space-sm);
}

.saved-plan-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--color-border);
}

.saved-plan-info {
    cursor: pointer;
    flex: 1;
}

.saved-plan-ticker {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
}

.saved-plan-meta {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
}

.saved-plan-delete {
    background: none;
    border: none;
    color: var(--color-text-tertiary);
    cursor: pointer;
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
}

@media (hover: hover) {
    .saved-plan-delete:hover {
        color: #C53030;
    }
}

/* Settings Panel */

.settings-panel {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 360px;
    max-width: 90vw;
    background: var(--color-bg);
    border-left: 1px solid var(--color-border);
    z-index: var(--z-modal);
    padding: var(--space-lg);
    overflow-y: auto;
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
}

.settings-panel.open {
    display: block;
}

.settings-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: var(--z-modal-backdrop);
}

.settings-overlay.open {
    display: block;
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.settings-title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--color-text);
}

.settings-save {
    padding: 0.5rem 1.25rem;
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 500;
    background: var(--color-accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--duration-fast) ease;
}

@media (hover: hover) {
    .settings-save:hover {
        background: var(--color-accent-light);
    }
}

.settings-note {
    font-family: var(--font-ui);
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    margin-top: var(--space-md);
    line-height: 1.4;
}

/* ========================================
   Responsive - Trade Planner
   ======================================== */

@media (max-width: 768px) {
    .planner-main {
        padding: 0 var(--space-md) var(--space-lg);
    }
    
    .planner-header-inner {
        padding: 0.75rem var(--space-md);
    }
    
    .planner-toolbar-inner {
        padding: 0.5rem var(--space-md);
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .step-nav {
        width: 100%;
    }
    
    .step-nav-item {
        font-size: 0.55rem;
        padding: 0.5rem 0.25rem;
        letter-spacing: 0.03em;
    }
    
    .field-row {
        grid-template-columns: 1fr;
    }
    
    .computed-grid {
        grid-template-columns: 1fr;
    }
    
    .step-title {
        font-size: 1.4rem;
    }
    
    .target-computed {
        flex-wrap: wrap;
        gap: 0.75rem;
    }
    
    .summary-actions {
        flex-direction: column;
    }
    
    .summary-actions .step-btn {
        text-align: center;
    }
}

/* ========================================
   Print - Trade Planner
   ======================================== */

@media print {
    .planner-header,
    .planner-toolbar,
    .step-actions,
    .summary-actions,
    .settings-panel,
    .settings-overlay,
    .grain-overlay,
    .theme-toggle,
    .mobile-theme-toggle,
    .site-footer,
    .saved-plans-toggle,
    .saved-plans-list {
        display: none !important;
    }
    
    .step-panel {
        display: block !important;
    }
    
    .step-panel:not([data-step="summary"]) {
        display: none !important;
    }
}