/* ============================================
   Daily Markdown Landing Page
   A warm, frosted glass aesthetic
   ============================================ */

:root {
    /* Colors - Light Theme */
    --bg-primary: #FAF8F5;
    --bg-secondary: #F5F2ED;
    --text-primary: #2C2825;
    --text-secondary: #6B635A;
    --text-tertiary: #9A918A;
    --border: rgba(44, 40, 37, 0.08);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-shadow: rgba(44, 40, 37, 0.08);

    /* Accent Colors */
    --accent-gold: #D4A574;
    --accent-coral: #E8998D;
    --accent-mint: #8FBC94;
    --accent-lavender: #B8A9C9;
    --accent-sky: #89B4C8;

    /* Current accent (default: gold) */
    --accent: var(--accent-gold);
    --accent-light: rgba(212, 165, 116, 0.15);
    --accent-glow: rgba(212, 165, 116, 0.4);

    /* Gradient orbs */
    --orb-1: var(--accent);
    --orb-2: var(--accent-lavender);
    --orb-3: var(--accent-mint);

    /* Typography */
    --font-display: 'Instrument Serif', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #1A1816;
    --bg-secondary: #232120;
    --text-primary: #F5F2ED;
    --text-secondary: #A8A099;
    --text-tertiary: #6B635A;
    --border: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(35, 33, 32, 0.8);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.3);
}

/* Accent color variations */
[data-accent="coral"] {
    --accent: var(--accent-coral);
    --accent-light: rgba(232, 153, 141, 0.15);
    --accent-glow: rgba(232, 153, 141, 0.4);
    --orb-1: var(--accent-coral);
}

[data-accent="mint"] {
    --accent: var(--accent-mint);
    --accent-light: rgba(143, 188, 148, 0.15);
    --accent-glow: rgba(143, 188, 148, 0.4);
    --orb-1: var(--accent-mint);
}

[data-accent="lavender"] {
    --accent: var(--accent-lavender);
    --accent-light: rgba(184, 169, 201, 0.15);
    --accent-glow: rgba(184, 169, 201, 0.4);
    --orb-1: var(--accent-lavender);
}

[data-accent="sky"] {
    --accent: var(--accent-sky);
    --accent-light: rgba(137, 180, 200, 0.15);
    --accent-glow: rgba(137, 180, 200, 0.4);
    --orb-1: var(--accent-sky);
}

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

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

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

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background var(--transition-slow), color var(--transition-slow);
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ============================================
   Animated Gradient Background
   ============================================ */

.gradient-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background: var(--bg-primary);
    transition: background var(--transition-slow);
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
    transition: background var(--transition-slow);
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--orb-1);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--orb-2);
    bottom: -150px;
    left: -100px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: var(--orb-3);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
    opacity: 0.3;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -30px) scale(1.05);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }
    75% {
        transform: translate(-30px, -20px) scale(1.02);
    }
}

[data-theme="dark"] .gradient-orb {
    opacity: 0.3;
    filter: blur(100px);
}

/* ============================================
   Navigation
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: background var(--transition-slow);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    object-fit: cover;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--text-primary);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--accent-light);
    color: var(--accent);
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--accent);
    color: white;
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
}

.sun-icon { display: block; }
.moon-icon { display: none; }

[data-theme="dark"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: block; }

/* ============================================
   Hero Section
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: calc(80px + var(--space-3xl)) var(--space-xl) var(--space-3xl);
    gap: var(--space-3xl);
}

.hero-content {
    text-align: center;
    max-width: 600px;
    animation: fadeInUp 0.8s ease-out;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-light);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 480px;
    margin: 0 auto var(--space-xl);
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--text-primary);
    color: var(--bg-primary);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    box-shadow: 0 4px 20px var(--glass-shadow);
}

.btn-primary svg {
    width: 20px;
    height: 20px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--glass-shadow);
}

.btn-large {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1.05rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Editor Demo
   ============================================ */

.editor-demo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
    width: 100%;
    max-width: 700px;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.editor-window {
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow:
        0 20px 60px var(--glass-shadow),
        0 0 0 1px var(--glass-border) inset;
    overflow: hidden;
    transition: box-shadow var(--transition-slow), background var(--transition-slow);
}

.editor-window:focus-within {
    box-shadow:
        0 25px 80px var(--glass-shadow),
        0 0 0 2px var(--accent-light),
        0 0 0 1px var(--glass-border) inset;
}

/* Focus Mode */
.editor-window.focus-mode {
    position: fixed;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100vw - 80px);
    max-width: 900px;
    height: calc(100vh - 80px);
    z-index: 1001;
    display: flex;
    flex-direction: column;
}

.editor-window.focus-mode::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    opacity: 0.9;
    z-index: -1;
}

.editor-window.focus-mode .editor-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.editor-window.focus-mode #editor {
    flex: 1;
    min-height: 0;
    resize: none;
}

.editor-titlebar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.traffic-lights {
    display: flex;
    gap: 8px;
}

.light {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    opacity: 0.8;
}

.light.red { background: #FF5F56; }
.light.yellow { background: #FFBD2E; }
.light.green { background: #27C93F; }

.editor-date {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.today-badge {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: var(--accent-light);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.date-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.editor-actions {
    display: flex;
    gap: var(--space-sm);
}

.editor-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

.editor-btn:hover {
    background: var(--accent-light);
    color: var(--accent);
}

.editor-btn svg {
    width: 16px;
    height: 16px;
}

.editor-toolbar {
    display: flex;
    gap: 2px;
    padding: var(--space-sm) var(--space-lg);
    border-bottom: 1px solid var(--border);
    background: var(--accent-light);
}

.toolbar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.toolbar-btn:hover {
    background: var(--glass-bg);
    color: var(--accent);
}

.editor-content {
    padding: 0;
}

#editor {
    width: 100%;
    min-height: 320px;
    padding: var(--space-lg);
    padding-bottom: var(--space-xl);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-primary);
    background: transparent;
    border: none;
    outline: none;
    resize: vertical;
    transition: color var(--transition-slow);
}

#editor::placeholder {
    color: var(--text-tertiary);
}

.editor-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-lg);
    padding: var(--space-sm) var(--space-lg);
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* Theme Selector */
.theme-selector {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
}

.theme-label {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.theme-colors {
    display: flex;
    gap: var(--space-xs);
}

.color-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color);
    border: 2px solid transparent;
    transition: all var(--transition-fast);
    position: relative;
}

.color-btn:hover {
    transform: scale(1.15);
}

.color-btn.active {
    border-color: var(--text-primary);
    box-shadow: 0 0 0 2px var(--bg-primary), 0 0 0 4px var(--color);
}

/* ============================================
   Features Section
   ============================================ */

.features {
    padding: var(--space-3xl) var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 400;
    text-align: center;
    margin-bottom: var(--space-3xl);
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    padding: var(--space-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px var(--glass-shadow);
}

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--accent-light);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
    padding: var(--space-3xl) var(--space-xl);
    text-align: center;
}

.cta-content {
    max-width: 500px;
    margin: 0 auto;
    padding: var(--space-3xl);
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px var(--glass-shadow);
}

.cta-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 400;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.cta-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

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

.footer {
    padding: var(--space-2xl) var(--space-xl);
    border-top: 1px solid var(--border);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--text-primary);
    text-decoration: none;
}

.footer-icon {
    width: 24px;
    height: 24px;
    border-radius: 5px;
    object-fit: cover;
}

.footer-links {
    display: flex;
    gap: var(--space-xl);
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .nav {
        padding: var(--space-md);
    }

    .nav-links {
        gap: var(--space-md);
    }

    .nav-links a {
        display: none;
    }

    .hero {
        padding: calc(70px + var(--space-2xl)) var(--space-md) var(--space-2xl);
    }

    .editor-demo {
        padding: 0 var(--space-md);
    }

    .features {
        padding: var(--space-2xl) var(--space-md);
    }

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

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-md);
    }
}

/* ============================================
   Page Styles (for privacy, terms, support)
   ============================================ */

.page-container {
    min-height: 100vh;
    padding: calc(80px + var(--space-3xl)) var(--space-xl) var(--space-3xl);
}

.page-content {
    max-width: 700px;
    margin: 0 auto;
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-3xl);
    box-shadow: 0 20px 60px var(--glass-shadow);
}

.page-content h1 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 400;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.page-content .last-updated {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-2xl);
}

.page-content h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.page-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.page-content ul {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    padding-left: var(--space-xl);
}

.page-content li {
    margin-bottom: var(--space-sm);
    line-height: 1.6;
}

.page-content a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.page-content a:hover {
    text-decoration: none;
}

/* Contact Form Styles */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

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

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: var(--space-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.btn-submit {
    align-self: flex-start;
    padding: var(--space-md) var(--space-xl);
    background: var(--accent);
    color: white;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--accent-glow);
}



.hidden {
    display: none;
}