/* ═══════════════════════════════════════════════════════════════
   Vipul Codes — Design System & Styles
   A premium dark theme with glassmorphism, gradients, and micro-animations
   ═══════════════════════════════════════════════════════════════ */

/* ─── CSS Variables ─────────────────────────────────────────── */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-tertiary: #18181f;
    --bg-card: rgba(22, 22, 30, 0.7);
    --bg-card-hover: rgba(30, 30, 42, 0.85);
    --bg-glass: rgba(255, 255, 255, 0.03);

    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b8;
    --text-tertiary: #6b6b80;
    --text-muted: #45455a;

    --accent-primary: #6c63ff;
    --accent-secondary: #00d4aa;
    --accent-tertiary: #ff6b9d;

    --gradient-1: linear-gradient(135deg, #6c63ff, #00d4aa);
    --gradient-2: linear-gradient(135deg, #6c63ff, #ff6b9d);
    --gradient-3: linear-gradient(135deg, #00d4aa, #6c63ff, #ff6b9d);
    --gradient-text: linear-gradient(135deg, #6c63ff 0%, #00d4aa 50%, #ff6b9d 100%);

    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --border-focus: rgba(108, 99, 255, 0.4);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(108, 99, 255, 0.15);

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-lg: 1.125rem;
    --fs-xl: 1.25rem;
    --fs-2xl: 1.5rem;
    --fs-3xl: 2rem;
    --fs-4xl: 2.5rem;
    --fs-5xl: 3.5rem;
    --fs-6xl: 4.5rem;

    /* 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;
    --space-4xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;
    --nav-height: 72px;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 20px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}


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

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

body {
    font-family: var(--font-body);
    font-size: var(--fs-base);
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
    color: var(--accent-secondary);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}


/* ─── Container ─────────────────────────────────────────────── */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}


/* ─── Section ───────────────────────────────────────────────── */
.section {
    padding: var(--space-4xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-tag {
    display: inline-block;
    font-size: var(--fs-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-primary);
    background: rgba(108, 99, 255, 0.1);
    border: 1px solid rgba(108, 99, 255, 0.2);
    padding: var(--space-xs) var(--space-md);
    border-radius: 100px;
    margin-bottom: var(--space-md);
}

.section-header h2 {
    font-size: var(--fs-4xl);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.section-desc {
    font-size: var(--fs-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}


/* ─── Navbar ────────────────────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    transition: all var(--duration-normal) var(--ease-out);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: var(--shadow-md);
}

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

.nav-logo {
    font-family: var(--font-mono);
    font-size: var(--fs-xl);
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0;
    transition: transform var(--duration-fast) var(--ease-out);
}

.nav-logo:hover {
    transform: scale(1.02);
    color: var(--text-primary);
}

.logo-bracket {
    color: var(--text-tertiary);
}

.logo-text {
    color: var(--text-primary);
}

.logo-dot {
    color: var(--accent-primary);
}

.logo-text-alt {
    color: var(--accent-secondary);
}

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

.nav-link {
    color: var(--text-secondary);
    font-size: var(--fs-sm);
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius-sm);
    transition: all var(--duration-fast) var(--ease-out);
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-glass);
}

.nav-link.active {
    color: var(--accent-primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--accent-primary);
    border-radius: 1px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--duration-normal) var(--ease-out);
}


/* ─── Hero ──────────────────────────────────────────────────── */
.hero, .page-hero {
    position: relative;
    padding-top: calc(var(--nav-height) + var(--space-4xl));
    overflow: hidden;
}

.hero {
    padding-bottom: var(--space-4xl);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.page-hero {
    padding-bottom: var(--space-3xl);
    min-height: 50vh;
    display: flex;
    align-items: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at 50% 0%, black, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 0%, black, transparent 70%);
}

.hero-glow {
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(108, 99, 255, 0.12) 0%, transparent 70%);
    filter: blur(60px);
    animation: glowPulse 8s ease-in-out infinite alternate;
}

.hero-glow-alt {
    background: radial-gradient(ellipse, rgba(0, 212, 170, 0.1) 0%, transparent 70%);
}

.hero-glow-contact {
    background: radial-gradient(ellipse, rgba(255, 107, 157, 0.1) 0%, transparent 70%);
}

@keyframes glowPulse {
    0% { opacity: 0.6; transform: translateX(-50%) scale(1); }
    100% { opacity: 1; transform: translateX(-50%) scale(1.15); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-xl);
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: var(--space-xs) var(--space-lg);
    border-radius: 100px;
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.6s var(--ease-out);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-secondary);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1, .page-hero h1 {
    font-size: var(--fs-6xl);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.6s var(--ease-out) 0.1s both;
}

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

.hero-subtitle {
    font-size: var(--fs-xl);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.6;
    animation: fadeInUp 0.6s var(--ease-out) 0.2s both;
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 0.6s var(--ease-out) 0.3s both;
}


/* ─── Buttons ───────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    font-weight: 600;
    padding: 12px 28px;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 20px rgba(108, 99, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(108, 99, 255, 0.4);
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.btn-full {
    width: 100%;
    justify-content: center;
}


/* ─── Hero Stats ────────────────────────────────────────────── */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xl);
    animation: fadeInUp 0.6s var(--ease-out) 0.4s both;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: var(--fs-4xl);
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-suffix {
    font-size: var(--fs-2xl);
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    display: block;
    font-size: var(--fs-sm);
    color: var(--text-tertiary);
    margin-top: var(--space-xs);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}


/* ─── Featured Article ──────────────────────────────────────── */
.featured-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: all var(--duration-normal) var(--ease-out);
}

.featured-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.featured-image {
    padding: var(--space-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

.featured-img-placeholder {
    width: 100%;
}

.code-window, .terminal-window {
    background: #1a1a2e;
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.code-header, .terminal-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.code-title, .terminal-title {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--text-tertiary);
    margin-left: var(--space-sm);
}

.code-content {
    padding: var(--space-lg);
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    line-height: 1.8;
    color: var(--text-secondary);
    overflow-x: auto;
}

.code-content .kw { color: #c678dd; }
.code-content .fn { color: #61afef; }
.code-content .str { color: #98c379; }
.code-content .num { color: #d19a66; }
.code-content .cm { color: #5c6370; font-style: italic; }

.featured-content {
    padding: var(--space-2xl) var(--space-2xl) var(--space-2xl) 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.meta-tag {
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--accent-primary);
    background: rgba(108, 99, 255, 0.1);
    padding: 4px 12px;
    border-radius: 100px;
}

.meta-date, .meta-read {
    font-size: var(--fs-xs);
    color: var(--text-tertiary);
}

.featured-content h3 {
    font-size: var(--fs-2xl);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--space-md);
    letter-spacing: -0.01em;
}

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

.article-topics {
    margin-bottom: var(--space-xl);
}

.article-topics li {
    color: var(--text-secondary);
    font-size: var(--fs-sm);
    padding: var(--space-xs) 0;
    padding-left: var(--space-lg);
    position: relative;
}

.article-topics li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-secondary);
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: var(--fs-sm);
    color: var(--accent-primary);
    transition: all var(--duration-fast) var(--ease-out);
}

.read-more:hover {
    gap: var(--space-md);
    color: var(--accent-secondary);
}


/* ─── Article Cards ─────────────────────────────────────────── */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: var(--space-xl);
    transition: all var(--duration-normal) var(--ease-out);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
    background: var(--bg-card-hover);
}

.card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 99, 255, 0.1);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--space-lg);
    color: var(--accent-primary);
    transition: all var(--duration-normal) var(--ease-out);
}

.article-card:hover .card-icon {
    background: rgba(108, 99, 255, 0.2);
    transform: scale(1.05);
}

.card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.article-card h3 {
    font-size: var(--fs-lg);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.01em;
}

.article-card p {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    flex: 1;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border);
}

.read-time {
    font-size: var(--fs-xs);
    color: var(--text-tertiary);
}

.card-link {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--accent-primary);
    transition: all var(--duration-fast) var(--ease-out);
}

.card-link:hover {
    color: var(--accent-secondary);
}


/* ─── Newsletter ────────────────────────────────────────────── */
.newsletter-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    padding: var(--space-3xl);
    position: relative;
    overflow: hidden;
}

.newsletter-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-3);
}

.newsletter-content h2 {
    font-size: var(--fs-3xl);
    font-weight: 800;
    margin-bottom: var(--space-md);
}

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

.newsletter-form {
    margin-top: var(--space-lg);
}

.input-group {
    display: flex;
    gap: var(--space-sm);
}

.input-group input {
    flex: 1;
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    outline: none;
    transition: all var(--duration-fast) var(--ease-out);
}

.input-group input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

.input-group input::placeholder {
    color: var(--text-muted);
}

.form-note {
    font-size: var(--fs-xs);
    color: var(--text-tertiary);
    margin-top: var(--space-sm);
}

.terminal-body {
    padding: var(--space-lg);
    font-family: var(--font-mono);
    font-size: var(--fs-sm);
    line-height: 2;
}

.terminal-body .prompt {
    color: var(--accent-secondary);
}

.terminal-body .cmd {
    color: var(--text-primary);
}

.terminal-body .output {
    color: var(--text-secondary);
}

.terminal-body .output.dim {
    color: var(--text-tertiary);
}

.terminal-body .cursor {
    color: var(--accent-primary);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}


/* ─── About Page ────────────────────────────────────────────── */
.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.about-text h2 {
    font-size: var(--fs-2xl);
    font-weight: 700;
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-lg);
}

.about-text h2:first-child {
    margin-top: 0;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

.about-topics li {
    color: var(--text-secondary);
    padding: var(--space-sm) 0;
    padding-left: var(--space-xl);
    position: relative;
    line-height: 1.7;
}

.about-topics li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-size: var(--fs-lg);
}

.about-topics li strong {
    color: var(--text-primary);
}

.about-quote {
    border-left: 3px solid var(--accent-primary);
    padding: var(--space-lg) var(--space-xl);
    margin: var(--space-xl) 0;
    font-style: italic;
    color: var(--text-secondary);
    background: var(--bg-glass);
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.sidebar-card h3 {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.facts-list li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
    font-size: var(--fs-sm);
}

.fact-icon {
    font-size: var(--fs-lg);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tech-tag {
    font-size: var(--fs-xs);
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    padding: 4px 12px;
    border-radius: 100px;
    transition: all var(--duration-fast) var(--ease-out);
}

.tech-tag:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    color: var(--text-secondary);
    font-size: var(--fs-sm);
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius-sm);
    transition: all var(--duration-fast) var(--ease-out);
}

.social-link:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
}


/* ─── Contact Page ──────────────────────────────────────────── */
.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-form-wrapper h2 {
    font-size: var(--fs-2xl);
    font-weight: 700;
    margin-bottom: var(--space-xl);
}

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

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

.form-group label {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-body);
    font-size: var(--fs-sm);
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    outline: none;
    transition: all var(--duration-fast) var(--ease-out);
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b6b80'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

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

.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: var(--space-xl);
    transition: all var(--duration-normal) var(--ease-out);
}

.info-card:hover {
    border-color: var(--border-hover);
}

.info-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 99, 255, 0.1);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--space-md);
    color: var(--accent-primary);
}

.info-card h3 {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.info-card p {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.info-link {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--accent-primary);
}

.contact-social {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.contact-social a {
    font-size: var(--fs-sm);
    font-weight: 500;
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-tertiary);
    border-radius: 100px;
    color: var(--text-secondary);
    transition: all var(--duration-fast) var(--ease-out);
}

.contact-social a:hover {
    background: rgba(108, 99, 255, 0.1);
    color: var(--accent-primary);
}

.highlight-card {
    background: rgba(108, 99, 255, 0.05);
    border-color: rgba(108, 99, 255, 0.15);
}

.open-to-list li {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    padding: var(--space-xs) 0;
    padding-left: var(--space-lg);
    position: relative;
}

.open-to-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-secondary);
    font-weight: 700;
}


/* ─── Footer ────────────────────────────────────────────────── */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--text-primary);
    display: inline-flex;
    margin-bottom: var(--space-md);
}

.footer-logo:hover {
    color: var(--text-primary);
}

.footer-brand p {
    color: var(--text-tertiary);
    font-size: var(--fs-sm);
    max-width: 300px;
    line-height: 1.7;
}

.footer-links h4 {
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-lg);
}

.footer-links ul li {
    margin-bottom: var(--space-sm);
}

.footer-links ul a {
    color: var(--text-tertiary);
    font-size: var(--fs-sm);
    transition: color var(--duration-fast) var(--ease-out);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

.footer-note {
    font-size: var(--fs-xs);
    color: var(--text-muted);
}


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

.animate-in {
    animation: fadeInUp 0.6s var(--ease-out) both;
}

/* Staggered animation for cards */
.article-card:nth-child(1) { animation-delay: 0.1s; }
.article-card:nth-child(2) { animation-delay: 0.2s; }
.article-card:nth-child(3) { animation-delay: 0.3s; }
.article-card:nth-child(4) { animation-delay: 0.4s; }
.article-card:nth-child(5) { animation-delay: 0.5s; }
.article-card:nth-child(6) { animation-delay: 0.6s; }


/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .featured-card {
        grid-template-columns: 1fr;
    }

    .featured-content {
        padding: 0 var(--space-2xl) var(--space-2xl);
    }

    .hero h1, .page-hero h1 {
        font-size: var(--fs-5xl);
    }
}

@media (max-width: 768px) {
    :root {
        --fs-6xl: 2.75rem;
        --fs-5xl: 2.25rem;
        --fs-4xl: 2rem;
    }

    .nav-menu {
        display: none;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--space-xl);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .nav-link {
        font-size: var(--fs-xl);
    }

    .hero {
        min-height: 80vh;
    }

    .hero-stats {
        gap: var(--space-lg);
    }

    .hero-cta {
        flex-direction: column;
    }

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

    .newsletter-card {
        grid-template-columns: 1fr;
    }

    .newsletter-visual {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-xl);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }

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

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

    .input-group {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }

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

    .hero-stats {
        flex-direction: column;
        gap: var(--space-md);
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }
}

/* ─── Cron reference pages ──────────────────────────────────── */
.cron-hero { padding-bottom: var(--space-lg); min-height: 0; }
.cron-article { padding-top: var(--space-xl); }
.breadcrumbs { font-size: var(--fs-sm); color: var(--text-tertiary); margin-bottom: var(--space-md); }
.breadcrumbs a { color: var(--text-secondary); }
.breadcrumbs a:hover { color: var(--text-primary); }
.cron-expr code {
    display: inline-block; font-family: var(--font-mono); font-size: 1.75rem;
    padding: 0.5rem 1.25rem; margin: var(--space-md) 0; border-radius: var(--border-radius-sm);
    background: var(--bg-tertiary); border: 1px solid var(--border); color: var(--accent-secondary);
    overflow-wrap: anywhere;
}
.cron-article .container, .section .container > h2 + .cron-list { max-width: var(--container-narrow); }
.cron-article h2 { margin: var(--space-xl) 0 var(--space-md); }
.cron-article h3 { margin: var(--space-lg) 0 var(--space-sm); }
.cron-article p { color: var(--text-secondary); margin-bottom: var(--space-sm); }
.cron-article code, .cron-list code { font-family: var(--font-mono); font-size: 0.9em; }
.fields { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.fields th, .fields td { text-align: left; padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--border); }
.fields th { color: var(--text-tertiary); font-weight: 600; }
.runs, .runs-facts, .gotchas, .related { padding-left: 1.25rem; color: var(--text-secondary); }
.runs li, .runs-facts li, .gotchas li, .related li { margin: 0.35rem 0; list-style: disc; }
.runs li { font-family: var(--font-mono); font-size: var(--fs-sm); }
.related a { color: var(--accent-primary); }
.snippet {
    background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: var(--border-radius-sm);
    padding: var(--space-md); overflow-x: auto; margin: var(--space-sm) 0;
}
.snippet code { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--text-primary); white-space: pre; }
.note { border-left: 3px solid var(--accent-tertiary); padding-left: var(--space-md); }
.cron-list {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-sm); margin: var(--space-md) 0 var(--space-xl);
}
.cron-list a {
    display: flex; justify-content: space-between; gap: var(--space-md); align-items: center;
    padding: 0.75rem 1rem; border-radius: var(--border-radius-sm);
    background: var(--bg-card); border: 1px solid var(--border); color: var(--text-primary);
}
.cron-list a:hover { border-color: var(--border-hover); background: var(--bg-card-hover); }
.cron-list code { color: var(--accent-secondary); white-space: nowrap; }
@media (max-width: 600px) {
    .cron-expr code { font-size: 1.25rem; }
    .cron-list { grid-template-columns: 1fr; }
}