/* ==========================================================================
   ORIGIN FINANCIAL DESIGN SYSTEM — COURSE EXPLORER
   Midnight Gallery of Quiet Wealth / Quiet Knowledge
   ========================================================================== */

:root {
    /* ----------------------------------------------------------------------
       Colors
       ---------------------------------------------------------------------- */
    --color-iris-gleam: #847dff;
    --color-cyan-signal: #00b3dd;
    --color-pale-iris: #d1c9ff;
    --color-deep-iris: #4b49aa;
    --color-orchid-bloom: #dd90d8;
    --color-periwinkle: #90b8f0;
    --color-obsidian: #0f1011;
    --color-abyss: #090a0b;
    --color-graphite: #2e2e2e;
    --color-steel: #3f4041;
    --color-silver: #cacaca;
    --color-fog: #6a6b6b;
    --color-ash: #9f9fa0;
    --color-cloud: #f5f5f7;
    --color-pure: #ffffff;
    --color-void: #000000;

    /* ----------------------------------------------------------------------
       Typography — Three Distinct Voices
       1. Lyon Display Substitute: Playfair Display / DM Serif Display (Serif, emotive headlines)
       2. Suisse Int'l Substitute: Inter (Neo-grotesque sans, workhorse UI)
       3. Roboto Mono: Monospace, technical labels & data
       ---------------------------------------------------------------------- */
    --font-lyon-display: 'Playfair Display', 'DM Serif Display', Georgia, serif;
    --font-suisse-intl: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-roboto-mono: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    /* Typography Scale */
    --text-mono-label: 12px;
    --leading-mono-label: 2;
    --text-body-sm: 14px;
    --leading-body-sm: 1.67;
    --text-body: 16px;
    --leading-body: 1.5;
    --text-subheading: 18px;
    --leading-subheading: 1.5;
    --tracking-subheading: 0px;
    --text-heading-lg: 38px;
    --leading-heading-lg: 0.9;
    --text-display-sm: 80px;
    --leading-display-sm: 1;
    --text-display: 96px;
    --leading-display: 0.9;

    /* Weights */
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;

    /* ----------------------------------------------------------------------
       Spacing (Base 4px)
       ---------------------------------------------------------------------- */
    --spacing-unit: 4px;
    --spacing-4: 4px;
    --spacing-8: 8px;
    --spacing-12: 12px;
    --spacing-16: 16px;
    --spacing-20: 20px;
    --spacing-24: 24px;
    --spacing-32: 32px;
    --spacing-40: 40px;
    --spacing-48: 48px;
    --spacing-60: 60px;
    --spacing-68: 68px;
    --spacing-80: 80px;
    --spacing-100: 100px;
    --spacing-120: 120px;
    --spacing-140: 140px;

    /* Layout */
    --page-max-width: 1200px;
    --section-gap: 80px;
    --card-padding: 32px;
    --element-gap: 12px;

    /* ----------------------------------------------------------------------
       Border Radius
       ---------------------------------------------------------------------- */
    --radius-buttons: 8px;
    --radius-inputs: 8px;
    --radius-navitems: 8px;
    --radius-cards: 16px;
    --radius-statblocks: 16px;
    --radius-featurecards: 30px;
    --radius-categorytiles: 30px;
    --radius-pillbuttons: 9999px;
    --radius-pillchips: 1440px;

    /* ----------------------------------------------------------------------
       Surfaces
       ---------------------------------------------------------------------- */
    --surface-obsidian-canvas: #0f1011;
    --surface-abyss: #090a0b;
    --surface-graphite-card: #2e2e2e;
    --surface-steel-hover: #3f4041;
    --surface-silver-inverted: #cacaca;

    /* ----------------------------------------------------------------------
       Gradients (Structural only)
       ---------------------------------------------------------------------- */
    --gradient-dark-chrome: linear-gradient(135deg, rgb(43, 43, 44), rgb(19, 19, 19));
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--surface-obsidian-canvas);
}

body {
    background-color: var(--surface-obsidian-canvas);
    color: var(--color-cloud);
    font-family: var(--font-suisse-intl);
    font-size: var(--text-body);
    line-height: var(--leading-body);
    font-weight: var(--font-weight-regular);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   Navigation Bar (Sticky Glassmorphic)
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 16, 17, 0.78);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: background-color 0.2s ease;
}

.nav-container {
    max-width: var(--page-max-width);
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.brand-title {
    font-family: var(--font-lyon-display);
    font-weight: var(--font-weight-light);
    font-size: 20px;
    color: var(--color-pure);
    letter-spacing: -0.01em;
}

.brand-title em {
    font-style: italic;
    font-weight: var(--font-weight-light);
}

.brand-badge {
    font-family: var(--font-roboto-mono);
    font-size: 10px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.182em;
    color: var(--color-ash);
    padding: 3px 8px;
    border-radius: var(--radius-pillchips);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Button styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-suisse-intl);
    font-size: 14px;
    font-weight: var(--font-weight-regular);
    line-height: 1;
    border-radius: var(--radius-buttons);
    padding: 12px 18px;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
    border: none;
    white-space: nowrap;
}

/* Primary CTA Button: White fill, black text (21:1 AAA contrast) */
.btn-primary {
    background: var(--color-pure);
    color: var(--color-void);
    font-weight: var(--font-weight-medium);
}

.btn-primary:hover {
    background: #e6e6e8;
    color: var(--color-void);
}

.btn-primary:active {
    background: #d6d6d8;
}

/* Ghost Outline Button */
.btn-ghost {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-pure);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.35);
}

.btn-ghost:active {
    background: var(--surface-steel-hover);
}

/* Mono Utility Button (for copy actions) */
.btn-mono {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--color-ash);
    font-family: var(--font-roboto-mono);
    font-size: 12px;
    font-weight: var(--font-weight-regular);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 11px 16px;
    border-radius: var(--radius-buttons);
}

.btn-mono:hover {
    color: var(--color-pure);
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.04);
}

.btn-mono.copied {
    color: var(--color-cyan-signal);
    border-color: var(--color-cyan-signal);
    background: rgba(0, 179, 221, 0.08);
}

/* ==========================================================================
   Hero Section
   Sky Atmosphere subtle mesh + Whisper-weight 300 Lyon Display
   ========================================================================== */
.hero-section {
    position: relative;
    padding: 72px 24px 32px;
    max-width: var(--page-max-width);
    margin: 0 auto;
    text-align: center;
}

.hero-atmosphere {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    background: radial-gradient(ellipse 65% 55% at 50% 0%, rgba(26, 71, 136, 0.15) 0%, rgba(15, 16, 17, 0) 80%);
}

/* Eyebrow badge */
.promo-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 24px;
    border-radius: var(--radius-pillchips);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.182em;
    color: var(--color-pure);
    margin-bottom: 28px;
}

.signal-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-cyan-signal);
    display: inline-block;
    box-shadow: 0 0 6px var(--color-cyan-signal);
}

/* Display Headline: Weight 300 Lyon Display substitute (tight line-height 0.95) */
.hero-title {
    font-family: var(--font-lyon-display);
    font-weight: var(--font-weight-light);
    font-size: clamp(38px, 6.5vw, 80px);
    line-height: 0.95;
    letter-spacing: -0.025em;
    color: var(--color-pure);
    margin: 0 auto 20px;
    max-width: 900px;
}

.hero-title em {
    font-style: italic;
    font-weight: var(--font-weight-light);
}

.hero-subtitle {
    font-family: var(--font-suisse-intl);
    font-weight: var(--font-weight-light);
    font-size: var(--text-subheading);
    line-height: var(--leading-subheading);
    color: var(--color-ash);
    max-width: 580px;
    margin: 0 auto 40px;
}

/* ==========================================================================
   AI Prompt Input / Search Box Module
   Black background, 8px radius, asymmetric padding, circular action trigger
   ========================================================================== */
.search-wrapper {
    max-width: 760px;
    margin: 0 auto 20px;
    position: relative;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--color-void);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-inputs);
    padding: 8px 12px 8px 22px;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.search-box:focus-within {
    border-color: rgba(255, 255, 255, 0.4);
    background: #000000;
}

.search-icon {
    color: var(--color-ash);
    font-size: 16px;
    margin-right: 14px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

#searchBox {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: #fafafa;
    font-family: var(--font-suisse-intl);
    font-size: 16px;
    font-weight: var(--font-weight-regular);
    line-height: 1.5;
    padding: 8px 0;
}

#searchBox::placeholder {
    color: var(--color-ash);
    font-weight: var(--font-weight-light);
    opacity: 0.8;
}

.search-action-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-pillbuttons);
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-pure);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s ease, opacity 0.2s ease;
    flex-shrink: 0;
    margin-left: 8px;
}

.search-action-btn:hover {
    background: rgba(255, 255, 255, 0.32);
}

.search-action-btn i {
    font-size: 13px;
}

/* Quick Filter Suggestion Chips */
.quick-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 18px auto 36px;
    max-width: 760px;
}

.quick-tags-label {
    font-family: var(--font-roboto-mono);
    font-size: 10px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.182em;
    color: var(--color-fog);
    margin-right: 4px;
}

.tag-pill {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-pillbuttons);
    padding: 5px 12px;
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    font-weight: var(--font-weight-regular);
    color: var(--color-ash);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.tag-pill:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-pure);
    border-color: rgba(255, 255, 255, 0.25);
}

/* ==========================================================================
   Data Signals Ribbon
   Roboto Mono uppercase data annotations & Cyan Signal indicators
   ========================================================================== */
.data-ribbon {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 28px 48px;
    padding: 16px 20px;
    margin: 0 auto 56px;
    max-width: var(--page-max-width);
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.data-item {
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    font-weight: var(--font-weight-regular);
    color: var(--color-ash);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
}

.data-item strong {
    color: var(--color-cloud);
    font-weight: var(--font-weight-medium);
}

.data-item .accent-signal {
    color: var(--color-cyan-signal);
}

/* ==========================================================================
   Main Content Container
   ========================================================================== */
.main-content {
    max-width: var(--page-max-width);
    width: 100%;
    margin: 0 auto;
    padding: 0 24px 64px;
    flex: 1;
}

/* ==========================================================================
   Feature Category Cards (Curated chromatic full-bleed tiles)
   Iris Gleam, Orchid Bloom, Silver Inverted
   30px radius, 32px padding, Lyon Display 38px/300 title
   ========================================================================== */
.feature-showcase {
    margin-bottom: 48px;
}

.showcase-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.showcase-title {
    font-family: var(--font-roboto-mono);
    font-size: var(--text-mono-label);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.182em;
    color: var(--color-ash);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.feature-card {
    border-radius: var(--radius-featurecards);
    padding: var(--card-padding);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 250px;
    cursor: pointer;
    transition: opacity 0.2s ease, transform 0.2s ease;
    text-decoration: none;
}

.feature-card:hover {
    opacity: 0.94;
    transform: translateY(-2px);
}

/* Iris Gleam: Signature Violet */
.card-iris {
    background-color: var(--color-iris-gleam);
    color: var(--color-pure);
}

/* Orchid Bloom: Pink category card */
.card-orchid {
    background-color: var(--color-orchid-bloom);
    color: var(--color-pure);
}

/* Silver Inverted Card: Light surface, dark text */
.card-silver {
    background-color: var(--color-silver);
    color: var(--color-void);
}

.feature-card-meta {
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.182em;
    margin-bottom: 16px;
    opacity: 0.85;
}

.card-silver .feature-card-meta {
    color: var(--color-void);
    opacity: 0.7;
}

.feature-card-title {
    font-family: var(--font-lyon-display);
    font-weight: var(--font-weight-light);
    font-size: clamp(26px, 2.5vw, 36px);
    line-height: 1.0;
    margin-bottom: 12px;
}

.feature-card-desc {
    font-family: var(--font-suisse-intl);
    font-weight: var(--font-weight-regular);
    font-size: 15px;
    line-height: 1.45;
    opacity: 0.9;
    margin-bottom: 24px;
}

.card-silver .feature-card-desc {
    color: #222222;
}

.feature-card-action {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-top: auto;
}

/* ==========================================================================
   Results Section & Elevated Graphite Cards
   Flat aesthetic, color stepping (#0f1011 -> #2e2e2e -> #3f4041)
   ========================================================================== */
.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.results-meta {
    font-family: var(--font-roboto-mono);
    font-size: var(--text-mono-label);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.182em;
    color: var(--color-cloud);
}

.clear-search-btn {
    background: transparent;
    border: none;
    color: var(--color-ash);
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: color 0.2s ease;
}

.clear-search-btn:hover {
    color: var(--color-pure);
}

/* Course Card (Elevated Graphite Card) */
.card {
    background-color: var(--surface-graphite-card);
    border-radius: var(--radius-cards);
    padding: 28px 32px;
    margin-bottom: 16px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    background-color: var(--surface-steel-hover);
    border-color: rgba(255, 255, 255, 0.14);
}

/* Top metadata row */
.card-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.card-id-badge {
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.182em;
    color: var(--color-ash);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.card-id-badge strong {
    color: var(--color-cloud);
}

.card-platform-tag {
    font-family: var(--font-roboto-mono);
    font-size: 10px;
    font-weight: var(--font-weight-regular);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--color-fog);
}

/* Card Heading: Lyon Display substitute, weight 300, whisper-soft authority */
.card h3 {
    font-family: var(--font-lyon-display);
    font-weight: var(--font-weight-light);
    font-size: 26px;
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: var(--color-pure);
    margin-bottom: 12px;
}

/* Destination details */
.card p {
    font-family: var(--font-suisse-intl);
    font-weight: var(--font-weight-light);
    font-size: var(--text-body-sm);
    line-height: var(--leading-body-sm);
    color: var(--color-ash);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    word-break: break-all;
}

.card p i {
    font-size: 11px;
    color: var(--color-fog);
}

/* Button Group */
.buttons {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

/* Open Course Button: Primary CTA (White fill, black text) */
.card .open {
    background: var(--color-pure);
    color: var(--color-void);
    font-family: var(--font-suisse-intl);
    font-weight: var(--font-weight-medium);
    font-size: 14px;
    padding: 12px 18px;
    border-radius: var(--radius-buttons);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.2s ease, opacity 0.2s ease;
}

.card .open:hover {
    background: #e6e6e8;
}

/* Modules Button: Ghost Outline */
.card .module {
    background: transparent;
    color: var(--color-pure);
    font-family: var(--font-suisse-intl);
    font-weight: var(--font-weight-regular);
    font-size: 14px;
    padding: 12px 18px;
    border-radius: var(--radius-buttons);
    border: 1px solid rgba(255, 255, 255, 0.22);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.card .module:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.35);
}

/* Copy Buttons: Monospace subtle ghost */
.card .copy-course,
.card .copy-module {
    background: transparent;
    color: var(--color-ash);
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 12px 16px;
    border-radius: var(--radius-buttons);
    border: 1px solid rgba(255, 255, 255, 0.12);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.card .copy-course:hover,
.card .copy-module:hover {
    color: var(--color-pure);
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.04);
}

.card .copy-course.copied,
.card .copy-module.copied {
    color: var(--color-cyan-signal);
    border-color: var(--color-cyan-signal);
    background: rgba(0, 179, 221, 0.08);
}

/* Empty State */
.empty {
    text-align: center;
    padding: 64px 32px;
    background-color: var(--surface-graphite-card);
    border-radius: var(--radius-cards);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.empty h4 {
    font-family: var(--font-lyon-display);
    font-weight: var(--font-weight-light);
    font-size: 30px;
    color: var(--color-pure);
    margin-bottom: 12px;
}

.empty p {
    font-family: var(--font-suisse-intl);
    font-weight: var(--font-weight-light);
    font-size: 15px;
    color: var(--color-ash);
    max-width: 440px;
    margin: 0 auto 24px;
    line-height: 1.6;
}

/* ==========================================================================
   Footer
   Abyss surface, legal disclaimer, quiet technical attribution
   ========================================================================== */
.footer {
    background-color: var(--surface-abyss);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 60px 24px 40px;
    margin-top: auto;
}

.footer-inner {
    max-width: var(--page-max-width);
    margin: 0 auto;
    text-align: center;
}

.footer-eyebrow {
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.182em;
    color: var(--color-fog);
    margin-bottom: 16px;
}

.footer-text {
    font-family: var(--font-suisse-intl);
    font-weight: var(--font-weight-light);
    font-size: var(--text-body-sm);
    line-height: 1.7;
    color: var(--color-ash);
    max-width: 820px;
    margin: 0 auto 32px;
}

.footer-text strong {
    color: var(--color-cloud);
    font-weight: var(--font-weight-medium);
}

.footer-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    color: var(--color-fog);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-meta a {
    color: var(--color-ash);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-meta a:hover {
    color: var(--color-pure);
}

/* ==========================================================================
   Floating Site Counter (Origin Nav Glass Pill treatment)
   ========================================================================== */
.site-counter {
    position: fixed;
    right: 24px;
    bottom: 24px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-pillbuttons);
    background: rgba(15, 16, 17, 0.82);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    color: var(--color-ash);
    font-family: var(--font-roboto-mono);
    font-size: 11px;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    z-index: 1000;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.site-counter:hover {
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(15, 16, 17, 0.95);
}

.site-counter strong {
    color: var(--color-cyan-signal);
    font-weight: var(--font-weight-medium);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 900px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 52px;
    }

    .data-ribbon {
        gap: 16px 28px;
    }
}

@media (max-width: 640px) {
    .nav-container {
        padding: 14px 16px;
    }

    .brand-badge {
        display: none;
    }

    .hero-section {
        padding: 48px 16px 24px;
    }

    .hero-title {
        font-size: 38px;
        line-height: 1.0;
    }

    .hero-subtitle {
        font-size: 16px;
        margin-bottom: 28px;
    }

    .search-box {
        padding: 6px 8px 6px 16px;
    }

    #searchBox {
        font-size: 15px;
    }

    .data-ribbon {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .card {
        padding: 22px 20px;
    }

    .card h3 {
        font-size: 22px;
    }

    .buttons {
        flex-direction: column;
        width: 100%;
    }

    .card .open,
    .card .module,
    .card .copy-course,
    .card .copy-module {
        width: 100%;
        justify-content: center;
    }

    .site-counter {
        right: 12px;
        bottom: 12px;
        font-size: 10px;
        padding: 7px 12px;
    }
}