/* =====================================================
   What I Spend — Presentation CSS
   Uses the exact same design tokens as the app
   ===================================================== */

/* ===== CSS Variables — Flat UI Palette (from app) ===== */
:root {
    --color-primary: rgb(52, 152, 219);
    --color-primary-dark: rgb(41, 128, 185);
    --color-primary-glow: rgba(52, 152, 219, 0.12);
    --color-primary-soft: rgba(52, 152, 219, 0.08);

    --color-secondary: rgb(155, 89, 182);
    --color-secondary-dark: rgb(142, 68, 173);
    --color-secondary-soft: rgba(155, 89, 182, 0.08);

    --color-success: rgb(46, 204, 113);
    --color-success-dark: rgb(39, 174, 96);
    --color-success-soft: rgba(46, 204, 113, 0.08);

    --color-warning: rgb(241, 196, 15);
    --color-warning-dark: rgb(243, 156, 18);
    --color-warning-soft: rgba(241, 196, 15, 0.08);

    --color-danger: rgb(231, 76, 60);
    --color-danger-dark: rgb(192, 57, 43);
    --color-danger-soft: rgba(231, 76, 60, 0.08);

    --color-info: rgb(26, 188, 156);
    --color-info-dark: rgb(22, 160, 133);
    --color-info-soft: rgba(26, 188, 156, 0.08);

    --color-bg: rgb(236, 240, 241);
    --color-bg-card: rgb(255, 255, 255);
    --color-bg-elevated: rgb(236, 240, 241);

    --color-text: rgb(52, 73, 94);
    --color-text-light: rgb(127, 140, 141);
    --color-text-muted: rgb(149, 165, 166);
    --color-text-inverse: rgb(255, 255, 255);

    --color-border: rgb(236, 240, 241);
    --color-border-dark: rgb(189, 195, 199);
    --color-border-light: rgb(236, 240, 241);

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.8125rem;
    --font-size-base: 0.9375rem;
    --font-size-lg: 1.0625rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 0.875rem;
    --spacing-lg: 1.25rem;
    --spacing-xl: 1.75rem;
    --spacing-2xl: 2.5rem;

    --radius-sm: 0.375rem;
    --radius-md: 0.625rem;
    --radius-lg: 0.875rem;
    --radius-xl: 1.125rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    --transition-fast: 120ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);

    --gradient-primary: linear-gradient(135deg, rgb(52, 152, 219) 0%, rgb(41, 128, 185) 100%);
    --gradient-secondary: linear-gradient(135deg, rgb(155, 89, 182) 0%, rgb(142, 68, 173) 100%);
    --gradient-success: linear-gradient(135deg, rgb(46, 204, 113) 0%, rgb(39, 174, 96) 100%);
    --gradient-warm: linear-gradient(135deg, rgb(241, 196, 15) 0%, rgb(243, 156, 18) 100%);
    --gradient-danger: linear-gradient(135deg, rgb(231, 76, 60) 0%, rgb(192, 57, 43) 100%);
    --gradient-info: linear-gradient(135deg, rgb(26, 188, 156) 0%, rgb(22, 160, 133) 100%);

    --navbar-height: 4.25rem;
    --container-max-width: 1160px;
}

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

html { font-size: 16px; -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-bg);
}

h1, h2, h3 { font-weight: 600; line-height: 1.25; color: var(--color-text); }

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===== Buttons (exact app style) ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.btn-success {
    background: var(--gradient-success);
    color: white;
    box-shadow: 0 1px 3px rgba(46, 204, 113, 0.2);
}
.btn-success:hover {
    background: linear-gradient(135deg, rgb(39,174,96) 0%, rgb(46,204,113) 100%);
    transform: translateY(-1px);
}

.btn-outline {
    background: var(--color-bg-card);
    border-color: var(--color-border-dark);
    color: var(--color-text-light);
}
.btn-outline:hover {
    background: var(--color-primary-soft);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-sm { padding: var(--spacing-xs) var(--spacing-sm); font-size: var(--font-size-xs); }
.btn-lg { padding: var(--spacing-md) var(--spacing-xl); font-size: var(--font-size-base); }

/* ===== Navbar (app's navbar) ===== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--navbar-height);
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(236, 240, 241, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: rgba(52, 152, 219, 0.15);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.nav-brand-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.logo-icon { width: 2rem; height: 2rem; }
.logo-icon--sm { width: 1.5rem; height: 1.5rem; }

.brand-text {
    font-weight: 700;
    font-size: var(--font-size-xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    list-style: none;
    flex: 1;
    justify-content: center;
}

.nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-light);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-primary);
    opacity: 0;
    transform: scale(0);
    transition: all var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 6px; left: 50%;
    width: 0; height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transform: translateX(-50%);
    transition: width var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-primary-soft);
}
.nav-link:hover::before { opacity: 1; transform: scale(1); }
.nav-link:hover::after { width: 60%; }
.nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-soft);
    font-weight: 600;
}
.nav-link.active::after {
    width: 80%;
    bottom: 4px;
}

.nav-actions { display: flex; align-items: center; gap: var(--spacing-md); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--color-text); border-radius: 2px; transition: all var(--transition-fast); }

/* ===== Docs Page Navbar ===== */
.docs-page .navbar {
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid rgba(52, 152, 219, 0.1);
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.06);
}

.docs-page .nav-brand-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.docs-page .nav-brand-link:hover {
    background: var(--color-primary-soft);
}

.docs-page .nav-menu {
    justify-content: flex-end;
    flex: 0 0 auto;
}

.docs-page .nav-link {
    font-size: var(--font-size-base);
    padding: var(--spacing-sm) var(--spacing-lg);
}

.docs-page .nav-link::before {
    opacity: 1;
    transform: scale(1);
}

.docs-page .nav-link::after {
    display: none;
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    padding-top: var(--navbar-height);
    gap: 4rem;
}

.hero-content { flex: 1; min-width: 0; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-primary-soft);
    border: 1px solid rgba(52, 152, 219, 0.2);
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-xl);
}

.badge-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--color-success);
    flex-shrink: 0;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.5px;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.hero-title-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    line-height: 1.7;
    max-width: 440px;
    margin-bottom: var(--spacing-xl);
}

.hero-buttons { display: flex; gap: var(--spacing-md); flex-wrap: wrap; }

/* Dashboard Mockup */
.hero-visual { flex: 1.1; min-width: 0; }

.dashboard-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-border-dark);
    overflow: hidden;
}

.dc-topbar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 10px var(--spacing-md);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border-dark);
}

.dc-dots { display: flex; gap: 5px; }
.dc-dots span { width: 9px; height: 9px; border-radius: 50%; background: var(--color-border-dark); }

.dc-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    font-weight: 500;
    margin-left: var(--spacing-sm);
}

.dc-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--color-border);
}

.dc-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-card);
}

/* Stat Icons — app style */
.stat-icon {
    width: 2.75rem; height: 2.75rem;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}
.stat-icon svg { width: 1.4rem; height: 1.4rem; }
.stat-icon-primary { background: var(--gradient-primary); color: white; box-shadow: 0 4px 12px rgba(52,152,219,0.25); }
.stat-icon-success { background: var(--gradient-success); color: white; box-shadow: 0 4px 12px rgba(46,204,113,0.25); }
.stat-icon-warning { background: var(--gradient-warm); color: white; box-shadow: 0 4px 12px rgba(241,196,15,0.25); }
.stat-icon-accent { background: var(--gradient-secondary); color: white; box-shadow: 0 4px 12px rgba(155,89,182,0.25); }

.dc-stat-info { display: flex; flex-direction: column; }
.dc-stat-label { font-size: var(--font-size-xs); color: var(--color-text-light); }
.dc-stat-value { 
    font-size: var(--font-size-xl); 
    font-weight: 700; 
    color: var(--color-text);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    min-width: 80px;
}

.dc-chart-area { 
    padding: var(--spacing-lg) var(--spacing-lg); 
    background: linear-gradient(180deg, var(--color-bg-card) 0%, rgba(248,250,251) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    min-height: 220px;
}

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

.dc-chart-title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dc-legend { display: flex; align-items: center; gap: var(--spacing-md); font-size: var(--font-size-xs); color: var(--color-text-light); }
.legend-dot { 
    width: 8px; 
    height: 8px; 
    border-radius: 50%; 
    display: inline-block; 
    margin-right: 3px;
    box-shadow: 0 0 4px currentColor;
}

.sparkline { 
    width: 100%; 
    height: 160px; 
    display: block; 
    overflow: visible;
}

.dc-cats { display: flex; flex-wrap: wrap; gap: var(--spacing-sm); margin-top: var(--spacing-sm); }

.cat-tag {
    font-size: var(--font-size-xs);
    padding: 0.2rem 0.6rem;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-weight: 600;
    border: 1px solid rgba(52, 152, 219, 0.15);
}

/* ===== Section Layout ===== */
.section { 
    padding: 5rem 0; 
    scroll-margin-top: calc(var(--navbar-height) + 20px);
}

.section-header { margin-bottom: var(--spacing-2xl); }

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle { color: var(--color-text-light); font-size: var(--font-size-lg); }

/* ===== Features ===== */
.features-section { background: var(--color-bg); }

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-md);
    position: relative;
    transition: all var(--transition-base);
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), 0 8px 20px rgba(52, 152, 219, 0.1);
}

.feature-card:hover::before { opacity: 1; }

.feature-card--highlight {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--color-primary-soft) 0%, var(--color-bg-card) 60%);
    border-color: rgba(52, 152, 219, 0.2);
}

.fc-badge {
    position: absolute;
    top: var(--spacing-lg); right: var(--spacing-lg);
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-primary);
    background: var(--color-primary-soft);
    border: 1px solid rgba(52, 152, 219, 0.25);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
}

.feature-icon-wrap {
    width: 3rem; height: 3rem;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.feature-icon-wrap .icon { width: 1.5rem; height: 1.5rem; }

.icon-primary { background: var(--gradient-primary); color: white; box-shadow: 0 4px 12px rgba(52,152,219,0.25); }
.icon-success { background: var(--gradient-success); color: white; box-shadow: 0 4px 12px rgba(46,204,113,0.25); }
.icon-warning { background: var(--gradient-warm); color: white; box-shadow: 0 4px 12px rgba(241,196,15,0.25); }
.icon-danger { background: var(--gradient-danger); color: white; box-shadow: 0 4px 12px rgba(231,76,60,0.25); }
.icon-secondary { background: var(--gradient-secondary); color: white; box-shadow: 0 4px 12px rgba(155,89,182,0.25); }
.icon-info { background: var(--gradient-info); color: white; box-shadow: 0 4px 12px rgba(26,188,156,0.25); }

.feature-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.feature-list li {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    padding-left: var(--spacing-lg);
    position: relative;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
    font-size: var(--font-size-xs);
}

/* ===== Changelog ===== */
.changelog-section {
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

/* Filters */
.changelog-filters {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filter-pill {
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1.5px solid var(--color-border-dark);
    border-radius: var(--radius-full);
    background: var(--color-bg-card);
    color: var(--color-text-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-pill:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-pill.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* Timeline */
.timeline { display: flex; flex-direction: column; }

.timeline-item {
    display: grid;
    grid-template-columns: 100px 32px 1fr;
    gap: 0 var(--spacing-lg);
    padding-bottom: var(--spacing-2xl);
    transition: opacity var(--transition-base);
}

.timeline-item.hidden { opacity: 0.2; pointer-events: none; }

.tl-meta { text-align: right; padding-top: 2px; }

.version-badge {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    background: var(--color-bg);
    border: 1.5px solid var(--color-border-dark);
    border-radius: var(--radius-md);
    color: var(--color-text-light);
    margin-bottom: 4px;
}

.version-current {
    background: var(--color-primary-soft);
    border-color: rgba(52, 152, 219, 0.3);
    color: var(--color-primary);
}

.tl-date { display: block; font-size: var(--font-size-xs); color: var(--color-text-muted); }

.tl-track {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.tl-line {
    flex: 1;
    width: 1px;
    background: var(--color-border-dark);
    margin-top: 6px;
}

.timeline-item:last-child .tl-line { display: none; }

.tl-dot {
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--color-border-dark);
    border: 2px solid var(--color-bg-card);
    flex-shrink: 0;
    z-index: 1;
}

.tl-dot--active { background: var(--color-primary); }

.tl-body { padding-bottom: var(--spacing-sm); }

/* Tags */
.tl-tags { display: flex; gap: var(--spacing-sm); margin-bottom: var(--spacing-lg); flex-wrap: wrap; }

.tag {
    font-size: var(--font-size-xs);
    font-weight: 600;
    padding: 0.2rem 0.625rem;
    border-radius: var(--radius-full);
}

.tag-feature { background: var(--color-primary-soft); color: var(--color-primary); }
.tag-improvement { background: var(--color-success-soft); color: var(--color-success-dark); }
.tag-major { background: var(--color-secondary-soft); color: var(--color-secondary); }
.tag-release { background: var(--color-warning-soft); color: var(--color-warning-dark); }

/* Changelog list */
.changelog-list { list-style: none; display: flex; flex-direction: column; gap: var(--spacing-lg); }

.changelog-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.ci-icon {
    font-size: 11px;
    flex-shrink: 0;
    margin-top: 3px;
    width: 16px;
    text-align: center;
}

.ci-feature { color: var(--color-primary); }
.ci-improvement { color: var(--color-success-dark); font-size: 9px; margin-top: 5px; }
.ci-major { font-size: 14px; }

.changelog-item div { display: flex; flex-direction: column; gap: 3px; }

.changelog-item strong {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
}

.changelog-item p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin: 0;
}

/* ===== Tech Stack ===== */
.tech-section { 
    background: var(--color-bg); 
    padding: 6rem 0;
}

.tech-groups { display: flex; flex-direction: column; gap: var(--spacing-xl); }

.tech-group-block {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-md);
}

.tech-group-label {
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border-light);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.tech-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    border: 1.5px solid var(--color-border);
    transition: all var(--transition-base);
}

.tech-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md), 0 6px 16px rgba(52,152,219,0.1);
    border-color: var(--color-primary);
    background: var(--color-primary-soft);
}

.tech-emoji { font-size: 1.5rem; flex-shrink: 0; }

.tech-card div { display: flex; flex-direction: column; gap: 2px; }
.tech-card strong { font-size: var(--font-size-sm); font-weight: 600; color: var(--color-text); }
.tech-card span { font-size: var(--font-size-xs); color: var(--color-text-muted); }

/* ===== CTA ===== */
.cta-section {
    padding: var(--spacing-2xl) 0;
    background: var(--gradient-primary);
}

.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.cta-text h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.cta-text p { color: rgba(255,255,255,0.8); font-size: var(--font-size-lg); }

.cta-actions { display: flex; gap: var(--spacing-md); flex-wrap: wrap; }

.cta-section .btn-success {
    background: white;
    color: var(--color-primary);
    box-shadow: none;
}

.cta-section .btn-success:hover {
    background: rgba(255,255,255,0.9);
    transform: translateY(-1px);
}

.cta-section .btn-outline {
    background: transparent;
    border-color: rgba(255,255,255,0.5);
    color: white;
}

.cta-section .btn-outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: white;
    color: white;
}

/* ===== Footer ===== */
.footer {
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
}

.footer-inner {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-base);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-info { font-size: var(--font-size-sm); color: var(--color-text-light); }
.footer-info a { color: var(--color-primary); text-decoration: none; }
.footer-info a:hover { text-decoration: underline; }

/* ===== Reveal animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-card--highlight { grid-column: span 1; }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: var(--navbar-height);
        left: 0; right: 0;
        flex-direction: column;
        background: var(--color-bg-card);
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        justify-content: flex-start;
    }
    .nav-menu.active { display: flex; }
    .nav-toggle { display: flex; }

    .hero {
        flex-direction: column;
        padding-top: calc(var(--navbar-height) + 2rem);
        padding-bottom: 3rem;
        min-height: auto;
        gap: 2rem;
    }

    .hero-subtitle { max-width: 100%; }

    .features-grid { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: 1fr 1fr; }

    .timeline-item { grid-template-columns: 80px 24px 1fr; gap: 0 var(--spacing-md); }

    .cta-inner { flex-direction: column; align-items: flex-start; }
    .footer-inner { flex-direction: column; }
}

@media (max-width: 480px) {
    .tech-grid { grid-template-columns: 1fr; }
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; justify-content: center; }
}

/* ===== Documentation Section ===== */
.docs-section {
    background: var(--color-bg);
    padding: 5rem 0;
    min-height: 100vh;
}

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

.docs-page .navbar {
    position: fixed;
}

.docs-page > .docs-section {
    margin-top: var(--navbar-height);
}

.docs-container {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
}

.docs-sidebar {
    position: sticky;
    top: calc(var(--navbar-height) + 24px);
    align-self: start;
    max-height: calc(100vh - var(--navbar-height) - 48px);
    overflow-y: auto;
}

.docs-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

.docs-nav-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

.docs-nav-header svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-primary);
}

.docs-nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    font-weight: 500;
    text-align: left;
}

.docs-nav-link:hover {
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

.docs-nav-link.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.25);
}

.docs-content {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    padding-top: calc(var(--spacing-2xl) + var(--navbar-height));
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    min-width: 0;
    width: 100%;
    overflow-wrap: break-word;
}

.doc-article {
    max-width: 100%;
}

.doc-header {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.doc-header h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.doc-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.doc-section {
    margin-bottom: var(--spacing-2xl);
    padding-top: calc(var(--navbar-height) + 20px);
    scroll-margin-top: calc(var(--navbar-height) + 20px);
}

.doc-section h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-border);
}

.doc-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.doc-intro {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.doc-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.doc-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.doc-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px var(--color-primary-soft);
    transform: translateY(-2px);
}

.doc-card-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.doc-card h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin: 0 0 var(--spacing-sm);
    color: var(--color-text);
}

.doc-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin: 0;
    line-height: 1.6;
}

.feature-block {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-border);
}

.feature-block h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 var(--spacing-md);
}

.doc-list {
    margin: 0;
    padding-left: var(--spacing-lg);
}

.doc-list li {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.doc-code-block {
    background: #1e1e1e;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    overflow-x: auto;
    border: 1px solid var(--color-border-dark);
}

.doc-code-block pre {
    margin: 0;
}

.doc-code-block code {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: var(--font-size-sm);
    color: #e0e0e0;
    line-height: 1.6;
}

.doc-table-wrapper {
    overflow-x: auto;
    margin: var(--spacing-lg) 0;
}

.doc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.doc-table th,
.doc-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.doc-table th {
    background: var(--color-bg);
    font-weight: 600;
    color: var(--color-text);
}

.doc-table td {
    color: var(--color-text-light);
}

.doc-table code {
    background: var(--color-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
    color: var(--color-primary);
}

.doc-note {
    background: var(--color-info-soft);
    border-left: 4px solid var(--color-info);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
    color: var(--color-text);
    font-size: var(--font-size-sm);
}

.doc-alert {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin: var(--spacing-lg) 0;
    border-left: 4px solid;
}

.doc-alert-warning {
    background: var(--color-warning-soft);
    border-color: var(--color-warning);
}

.doc-alert strong {
    display: block;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.doc-alert ol,
.doc-alert ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

.doc-alert li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

.doc-footer {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

/* ===== Documentation Responsive ===== */
@media (max-width: 1024px) {
    .docs-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .docs-sidebar {
        position: static;
        max-height: none;
        overflow-y: visible;
    }
    
    .docs-nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .docs-nav-header {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    .docs-nav-link {
        font-size: var(--font-size-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

@media (max-width: 768px) {
    .docs-container {
        padding: 0 var(--spacing-md);
    }
    
    .docs-content {
        padding: var(--spacing-lg);
        padding-top: calc(var(--spacing-lg) + var(--navbar-height));
    }
    
    .doc-grid {
        grid-template-columns: 1fr;
    }
    
    .doc-header h1 {
        font-size: var(--font-size-2xl);
    }
}

@media (max-width: 480px) {
    .docs-content {
        padding: var(--spacing-md);
        padding-top: calc(var(--spacing-md) + var(--navbar-height));
    }
    
    .doc-section h2 {
        font-size: var(--font-size-xl);
    }
    
    .docs-nav {
        gap: 4px;
    }
    
    .docs-nav-link {
        font-size: 11px;
        padding: 4px 8px;
    }
}

/* ==========================================
   Git Sync Status Indicator
   ========================================== */
.git-sync-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--color-primary-soft);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    transition: all var(--transition-base);
}

.status-dot.status-loading {
    background: var(--color-warning);
    animation: pulse-loading 1.5s ease-in-out infinite;
}

.status-dot.status-ok {
    background: var(--color-success);
    box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.4);
    animation: pulse-ok 2s ease-in-out infinite;
}

.status-dot.status-error {
    background: var(--color-danger);
    box-shadow: 0 0 0 0 rgba(231, 76, 60, 0.4);
    animation: pulse-error 2s ease-in-out infinite;
}

.git-sync-status.status-error {
    background: rgba(231, 76, 60, 0.08);
    color: var(--color-danger);
}

@keyframes pulse-loading {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.6; }
}

@keyframes pulse-ok {
    0%, 100% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.4); }
    50% { box-shadow: 0 0 0 4px rgba(46, 204, 113, 0); }
}

@keyframes pulse-error {
    0%, 100% { box-shadow: 0 0 0 0 rgba(231, 76, 60, 0.4); }
    50% { box-shadow: 0 0 0 4px rgba(231, 76, 60, 0); }
}

/* Git-fetched content styling */
.git-fetched-content {
    margin-top: var(--spacing-xl);
    animation: fadeInUp 0.5s ease-out;
}

.git-readme-content h1,
.git-readme-content h2,
.git-readme-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.git-readme-content img.doc-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: var(--spacing-md) 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* ==========================================
   Git Sync Status Indicator
   ========================================== */
.git-sync-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--color-primary-soft);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    transition: all var(--transition-base);
}

.status-dot.status-loading {
    background: var(--color-warning);
    animation: pulse-loading 1.5s ease-in-out infinite;
}

.status-dot.status-ok {
    background: var(--color-success);
    box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.4);
    animation: pulse-ok 2s ease-in-out infinite;
}

.status-dot.status-error {
    background: var(--color-danger);
    box-shadow: 0 0 0 0 rgba(231, 76, 60, 0.4);
    animation: pulse-error 2s ease-in-out infinite;
}

.git-sync-status.status-error {
    background: rgba(231, 76, 60, 0.08);
    color: var(--color-danger);
}

@keyframes pulse-loading {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.6; }
}

@keyframes pulse-ok {
    0%, 100% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.4); }
    50% { box-shadow: 0 0 0 4px rgba(46, 204, 113, 0); }
}

@keyframes pulse-error {
    0%, 100% { box-shadow: 0 0 0 0 rgba(231, 76, 60, 0.4); }
    50% { box-shadow: 0 0 0 4px rgba(231, 76, 60, 0); }
}

/* Git-fetched content styling */
.git-fetched-content {
    margin-top: var(--spacing-xl);
    animation: fadeInUp 0.5s ease-out;
}

.git-readme-content h1,
.git-readme-content h2,
.git-readme-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.git-readme-content img.doc-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: var(--spacing-md) 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}