/* ============================================================
 * JetVPN — Premium Design System
 * Dark-first, electric green, glassmorphism, modern.
 * Fonts: Manrope (body) + JetBrains Mono (display + mono)
 * ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700;800&display=swap');

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    transition: background-color 300ms ease, color 300ms ease;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; }
ul, ol { list-style: none; }

/* ---------- Design Tokens / Theme ---------- */
:root {
    /* Brand — electric green */
    --brand-50:  #ecfdf5;
    --brand-100: #d1fae5;
    --brand-300: #6ee7b7;
    --brand-400: #34d399;
    --brand-500: #10b981;
    --brand-600: #059669;
    --brand-700: #047857;

    --accent: #22c55e;
    --accent-glow: rgba(34, 197, 94, 0.4);

    /* Layout */
    --container: 1200px;
    --container-narrow: 880px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-xl: 32px;

    /* Easing */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Z-index */
    --z-nav: 50;
    --z-modal: 100;
}

/* Dark theme (default) */
:root,
[data-theme="dark"] {
    --bg:           #0a0e0c;
    --bg-elevated:  #11181a;
    --bg-card:      #131c1f;
    --bg-glass:     rgba(19, 28, 31, 0.6);
    --bg-overlay:   rgba(10, 14, 12, 0.85);

    --text:         #e9efee;
    --text-muted:   #94a3a0;
    --text-dim:     #6b7370;

    --border:       rgba(255, 255, 255, 0.08);
    --border-strong:rgba(255, 255, 255, 0.14);
    --border-brand: rgba(34, 197, 94, 0.3);

    --shadow-sm:  0 1px 2px rgba(0,0,0,0.4);
    --shadow-md:  0 8px 24px rgba(0,0,0,0.35);
    --shadow-lg:  0 24px 60px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 80px rgba(34, 197, 94, 0.15);
}

/* Light theme */
[data-theme="light"] {
    --bg:           #fafbfa;
    --bg-elevated:  #ffffff;
    --bg-card:      #ffffff;
    --bg-glass:     rgba(255, 255, 255, 0.7);
    --bg-overlay:   rgba(250, 251, 250, 0.85);

    --text:         #0a0e0c;
    --text-muted:   #4d5650;
    --text-dim:     #8a938c;

    --border:       rgba(10, 14, 12, 0.08);
    --border-strong:rgba(10, 14, 12, 0.14);
    --border-brand: rgba(16, 185, 129, 0.3);

    --shadow-sm:  0 1px 2px rgba(10,14,12,0.06);
    --shadow-md:  0 8px 24px rgba(10,14,12,0.08);
    --shadow-lg:  0 24px 60px rgba(10,14,12,0.12);
    --shadow-glow: 0 0 80px rgba(16, 185, 129, 0.25);

    --accent: #10b981;
    --accent-glow: rgba(16, 185, 129, 0.3);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Manrope', sans-serif;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--text);
}

h1 { font-size: clamp(2.4rem, 5.5vw, 4.6rem); letter-spacing: -0.04em; }
h2 { font-size: clamp(1.9rem, 4vw, 3.2rem); letter-spacing: -0.03em; }
h3 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); }
h4 { font-size: 1.15rem; }
p { color: var(--text-muted); }

.mono { font-family: 'JetBrains Mono', monospace; }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    padding: 0.4rem 0.85rem;
    background: var(--brand-500);
    background: linear-gradient(135deg, rgba(34,197,94,0.12), rgba(34,197,94,0.04));
    border: 1px solid var(--border-brand);
    border-radius: 999px;
    margin-bottom: 1.5rem;
}
.eyebrow::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.gradient-text {
    background: linear-gradient(135deg, var(--brand-300) 0%, var(--brand-500) 50%, var(--brand-600) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* ---------- Layout ---------- */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1.5rem;
}
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 1.5rem; }

section { position: relative; padding: 6rem 0; }
@media (max-width: 768px) { section { padding: 4rem 0; } }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    padding: 0.85rem 1.6rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.97rem;
    line-height: 1;
    transition: transform 200ms var(--ease-out), background-color 200ms ease, border-color 200ms ease, box-shadow 250ms ease;
    cursor: pointer;
    white-space: nowrap;
    border: 1px solid transparent;
    position: relative;
    isolation: isolate;
}
.btn:active { transform: translateY(1px); }
.btn svg, .btn .icon { width: 1.1em; height: 1.1em; flex-shrink: 0; }

.btn-primary {
    background: linear-gradient(135deg, var(--brand-400), var(--brand-600));
    color: #03150e;
    box-shadow: 0 6px 20px -4px var(--accent-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px -6px var(--accent-glow), 0 0 0 1px rgba(255,255,255,0.1) inset;
}
.btn-primary::after {
    content: '';
    position: absolute; inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--text);
    border: 1px solid var(--border-strong);
}
.btn-secondary:hover {
    transform: translateY(-2px);
    border-color: var(--border-brand);
    background: var(--bg-card);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-elevated); border-color: var(--border-strong); }

.btn-lg { padding: 1.05rem 1.9rem; font-size: 1.05rem; border-radius: var(--radius-md); }
.btn-sm { padding: 0.55rem 1.05rem; font-size: 0.85rem; }

/* ---------- Navbar ---------- */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: var(--z-nav);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    background: var(--bg-overlay);
    border-bottom: 1px solid transparent;
    transition: border-color 300ms ease, background-color 300ms ease;
}
.nav.scrolled { border-bottom-color: var(--border); }

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.95rem 0;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
    color: var(--text);
}
.brand-icon {
    width: 32px; height: 32px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--brand-400), var(--brand-600));
    display: grid; place-items: center;
    box-shadow: 0 4px 16px -2px var(--accent-glow);
    flex-shrink: 0;
}
.brand-icon svg { width: 18px; height: 18px; color: #042914; }
.brand span:last-child { color: var(--text); }
.brand .tld { color: var(--text-dim); font-weight: 500; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}
.nav-links a {
    font-size: 0.93rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 200ms ease;
    position: relative;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--accent); }

.nav-actions { display: flex; align-items: center; gap: 0.75rem; }

.icon-btn {
    width: 38px; height: 38px;
    display: grid; place-items: center;
    border-radius: 10px;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    transition: all 200ms ease;
}
.icon-btn:hover { color: var(--text); background: var(--bg-elevated); border-color: var(--border-strong); }
.icon-btn svg { width: 18px; height: 18px; }

/* Lang dropdown */
.lang-dropdown { position: relative; }
.lang-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 180px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.4rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 200ms var(--ease-out);
}
.lang-dropdown.open .lang-menu,
.lang-menu:hover { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-item {
    display: flex; align-items: center; gap: 0.6rem;
    padding: 0.55rem 0.8rem;
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: all 150ms ease;
    cursor: pointer;
}
.lang-item:hover { background: var(--bg-card); color: var(--text); }
.lang-item.active { background: rgba(34,197,94,0.08); color: var(--accent); }
[dir="rtl"] .lang-menu { right: auto; left: 0; }

/* Mobile nav */
.nav-toggle {
    display: none;
    width: 38px; height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
}

/* Mobile menu — default GIZLI (her cihazda).
   Mobilde @media içinde gösterilebilir hale getirilir. */
.mobile-menu {
    display: none;
}

@media (max-width: 980px) {
    .nav-links { display: none; }
    .nav-toggle { display: grid; place-items: center; }
    .nav-cta-desktop { display: none; }

    .mobile-menu {
        display: block;
        position: fixed;
        top: 64px;
        inset-inline: 0;
        bottom: 0;
        height: calc(100dvh - 64px);
        background: var(--bg);
        z-index: 49;
        padding: 1.5rem 1.5rem 4rem;
        transform: translateY(-12px);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 300ms var(--ease-out),
                    transform 300ms var(--ease-out),
                    visibility 0s linear 300ms;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }
    .mobile-menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transition: opacity 300ms var(--ease-out),
                    transform 300ms var(--ease-out),
                    visibility 0s;
    }
    .mobile-menu a {
        display: block;
        padding: 1rem 0;
        font-size: 1.25rem;
        font-weight: 600;
        color: var(--text);
        border-bottom: 1px solid var(--border);
    }
    .mobile-menu a:last-child { border-bottom: none; }
}

/* ---------- Hero ---------- */
.hero {
    padding: 9rem 0 6rem;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -300px; left: 50%;
    transform: translateX(-50%);
    width: 1200px; height: 800px;
    background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}
/* Grid pattern */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at top center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at top center, black 0%, transparent 70%);
    pointer-events: none;
    opacity: 0.5;
    z-index: 0;
}
.hero-content { position: relative; z-index: 1; text-align: center; }

.hero-title {
    margin-bottom: 1.5rem;
}
.hero-title .word {
    display: inline-block;
    margin: 0 0.15em;
    opacity: 0;
    transform: translateY(30px);
    animation: rise-in 800ms var(--ease-out) forwards;
}
.hero-title .word:nth-child(1) { animation-delay: 100ms; }
.hero-title .word:nth-child(2) { animation-delay: 250ms; }
.hero-title .word:nth-child(3) { animation-delay: 400ms; }
@keyframes rise-in {
    to { opacity: 1; transform: translateY(0); }
}

.hero-subtitle {
    max-width: 640px;
    margin: 0 auto 2.5rem;
    font-size: clamp(1.05rem, 1.7vw, 1.25rem);
    color: var(--text-muted);
    opacity: 0;
    animation: rise-in 800ms var(--ease-out) 600ms forwards;
}
.hero-cta {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem;
    opacity: 0;
    animation: rise-in 800ms var(--ease-out) 750ms forwards;
}

/* Hero metrics */
.hero-metrics {
    margin-top: 5rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    animation: rise-in 1000ms var(--ease-out) 900ms forwards;
}
.metric {
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 250ms ease;
}
.metric:hover { border-color: var(--border-brand); transform: translateY(-2px); }
.metric-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(1.4rem, 2.5vw, 1.9rem);
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}
.metric-label {
    font-size: 0.78rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}
@media (max-width: 640px) {
    .hero-metrics { grid-template-columns: repeat(2, 1fr); margin-top: 3rem; }
}

/* ---------- Section header ---------- */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}
.section-header.left {
    text-align: start;
    margin-left: 0;
}
.section-subtitle {
    font-size: 1.1rem;
    margin-top: 1rem;
    color: var(--text-muted);
}

/* ---------- Cards ---------- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    position: relative;
    transition: all 300ms var(--ease-out);
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at var(--mx, 50%) var(--my, 0%), rgba(34,197,94,0.08), transparent 40%);
    opacity: 0;
    transition: opacity 300ms ease;
    pointer-events: none;
}
.card:hover {
    border-color: var(--border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.card:hover::before { opacity: 1; }

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(34,197,94,0.15), rgba(34,197,94,0.05));
    border: 1px solid var(--border-brand);
    display: grid;
    place-items: center;
    margin-bottom: 1.5rem;
    color: var(--accent);
}
.card-icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: 0.75rem; }
.card p { font-size: 0.95rem; line-height: 1.65; }

/* ---------- Features grid ---------- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

/* ---------- Network split layout ---------- */
.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
@media (max-width: 880px) {
    .split { grid-template-columns: 1fr; gap: 3rem; }
}
.split-text ul {
    margin-top: 2rem;
    display: flex; flex-direction: column; gap: 1rem;
}
.split-text li {
    display: flex; align-items: flex-start; gap: 0.85rem;
    color: var(--text);
    font-weight: 500;
}
.check-icon {
    flex-shrink: 0;
    width: 22px; height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-400), var(--brand-600));
    display: grid; place-items: center;
    color: #03150e;
    margin-top: 0.1rem;
}
.check-icon svg { width: 12px; height: 12px; stroke-width: 3; }

/* Globe visual */
.globe-visual {
    position: relative;
    aspect-ratio: 1 / 1;
    max-width: 480px;
    margin: 0 auto;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(34,197,94,0.15), transparent 60%);
}
.globe-visual::before {
    content: '';
    position: absolute;
    inset: 10%;
    border-radius: 50%;
    border: 1px solid var(--border-brand);
    background: radial-gradient(circle at 35% 35%, var(--bg-elevated), var(--bg) 70%);
    box-shadow: var(--shadow-glow), inset 0 0 60px rgba(0,0,0,0.4);
}
.globe-visual::after {
    content: '';
    position: absolute;
    inset: 10%;
    border-radius: 50%;
    background-image:
        linear-gradient(var(--border-brand) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-brand) 1px, transparent 1px);
    background-size: 30px 30px;
    mask-image: radial-gradient(circle, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(circle, black 30%, transparent 75%);
    opacity: 0.4;
}
.globe-node {
    position: absolute;
    width: 10px; height: 10px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--accent), 0 0 24px var(--accent-glow);
    animation: node-pulse 3s ease-in-out infinite;
}
.globe-node::before {
    content: '';
    position: absolute; inset: -8px;
    border-radius: 50%;
    border: 1px solid var(--accent);
    opacity: 0;
    animation: node-ring 3s ease-out infinite;
}
@keyframes node-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }
@keyframes node-ring {
    0% { transform: scale(0.6); opacity: 0.8; }
    100% { transform: scale(2.5); opacity: 0; }
}

/* ---------- Pricing ---------- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 880px;
    margin: 0 auto;
}
.price-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.25rem 2rem;
    position: relative;
    transition: all 300ms var(--ease-out);
}
.price-card.featured {
    border-color: var(--border-brand);
    background:
        linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
        linear-gradient(135deg, var(--brand-400), var(--brand-600)) border-box;
    border: 1px solid transparent;
    box-shadow: var(--shadow-glow);
    transform: scale(1.02);
}
@media (max-width: 640px) {
    .price-card.featured { transform: none; }
}
.price-badge {
    position: absolute;
    top: -12px; left: 50%;
    transform: translateX(-50%);
    padding: 0.35rem 1rem;
    background: linear-gradient(135deg, var(--brand-400), var(--brand-600));
    color: #03150e;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 999px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}
.price-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-family: 'JetBrains Mono', monospace;
}
.price-amount {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    margin: 1rem 0 0.5rem;
}
.price-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 3rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.04em;
}
.price-period { color: var(--text-dim); font-size: 0.95rem; }
.price-desc { color: var(--text-muted); margin-bottom: 1.5rem; font-size: 0.95rem; }
.price-features {
    display: flex; flex-direction: column; gap: 0.7rem;
    margin: 1.5rem 0 2rem;
}
.price-features li {
    display: flex; align-items: flex-start; gap: 0.6rem;
    font-size: 0.93rem;
    color: var(--text);
}
.price-features li svg { width: 16px; height: 16px; color: var(--accent); flex-shrink: 0; margin-top: 0.2rem; }
.price-card .btn { width: 100%; }

/* ---------- FAQ ---------- */
.faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex; flex-direction: column; gap: 0.75rem;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 200ms ease;
}
.faq-item:hover { border-color: var(--border-strong); }
.faq-item[open] { border-color: var(--border-brand); }

.faq-question {
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    user-select: none;
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question::after {
    content: '';
    width: 12px; height: 12px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    flex-shrink: 0;
    transition: transform 250ms ease;
    color: var(--text-muted);
}
.faq-item[open] .faq-question::after { transform: rotate(-135deg); color: var(--accent); }
.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ---------- CTA section ---------- */
.cta {
    text-align: center;
    position: relative;
}
.cta-card {
    background:
        linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
        linear-gradient(135deg, var(--brand-400), var(--brand-600), var(--brand-400)) border-box;
    border: 1px solid transparent;
    border-radius: var(--radius-xl);
    padding: 4rem 2rem;
    position: relative;
    overflow: hidden;
}
.cta-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, var(--accent-glow), transparent 60%);
    pointer-events: none;
    opacity: 0.4;
}
.cta-card > * { position: relative; z-index: 1; }
.cta-card h2 { margin-bottom: 1rem; }
.cta-card p {
    max-width: 540px;
    margin: 0 auto 2rem;
    font-size: 1.1rem;
}

/* ---------- Footer ---------- */
.footer {
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
    padding: 4rem 0 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}
@media (max-width: 880px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .footer-brand-col { grid-column: 1 / -1; }
}
.footer-brand-col p {
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 280px;
}
.footer-col h5 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text);
    margin-bottom: 1.25rem;
    font-weight: 700;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-col a {
    font-size: 0.93rem;
    color: var(--text-muted);
    transition: color 150ms ease;
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--text-dim);
    font-size: 0.88rem;
}
.socials { display: flex; gap: 0.5rem; }
.socials a {
    width: 36px; height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border);
    display: grid; place-items: center;
    color: var(--text-muted);
    transition: all 200ms ease;
}
.socials a:hover { color: var(--accent); border-color: var(--border-brand); }
.socials svg { width: 16px; height: 16px; }

/* ============================================================
 *  BLOG
 * ============================================================ */
.blog-hero {
    padding: 8rem 0 4rem;
    text-align: center;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}
.blog-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 800px; height: 400px;
    background: radial-gradient(ellipse at top, var(--accent-glow), transparent 70%);
    pointer-events: none;
}
.blog-hero > * { position: relative; }

.blog-list {
    padding: 4rem 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.75rem;
    max-width: var(--container);
    margin: 0 auto;
}
@media (max-width: 640px) {
    .blog-list { grid-template-columns: 1fr; padding: 3rem 0; }
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 300ms var(--ease-out);
    display: flex;
    flex-direction: column;
}
.blog-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.blog-card-cover {
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, var(--brand-700), var(--brand-500), var(--brand-300));
    position: relative;
    overflow: hidden;
}
.blog-card-cover img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 500ms var(--ease-out);
}
.blog-card:hover .blog-card-cover img { transform: scale(1.04); }
.blog-card-cover.placeholder::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 24px 24px;
}
.blog-card-cover.placeholder::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 56px; height: 56px;
    transform: translate(-50%, -50%);
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(10px);
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.2);
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M12 2L4 7v10l8 5 8-5V7z'/><path d='M12 22V12'/><path d='M4 7l8 5 8-5'/></svg>");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 28px;
}
.blog-card-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.blog-card-meta {
    display: flex;
    gap: 0.85rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    color: var(--text-dim);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.blog-card-meta span { display: inline-flex; align-items: center; gap: 0.35rem; }
.blog-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.6rem;
    color: var(--text);
    transition: color 200ms ease;
}
.blog-card:hover h3 { color: var(--accent); }
.blog-card-excerpt {
    color: var(--text-muted);
    font-size: 0.93rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex: 1;
}
.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
}
.blog-card-link svg { width: 14px; height: 14px; transition: transform 200ms ease; }
.blog-card:hover .blog-card-link svg { transform: translateX(3px); }
[dir="rtl"] .blog-card:hover .blog-card-link svg { transform: translateX(-3px); }

/* Single post */
.post-article {
    padding: 8rem 0 4rem;
    max-width: var(--container-narrow);
    margin: 0 auto;
}
.post-back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
    transition: color 150ms ease;
}
.post-back:hover { color: var(--accent); }
.post-back svg { width: 14px; height: 14px; }

.post-header { margin-bottom: 2.5rem; }
.post-meta {
    display: flex;
    gap: 1rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.post-title {
    font-size: clamp(2rem, 4.5vw, 3.4rem);
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
}
.post-excerpt {
    font-size: 1.2rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.post-content {
    font-size: 1.075rem;
    line-height: 1.75;
    color: var(--text);
}
.post-content > * + * { margin-top: 1.25rem; }
.post-content h2 {
    font-size: 1.85rem;
    margin-top: 3rem;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}
.post-content h3 {
    font-size: 1.4rem;
    margin-top: 2.25rem;
    margin-bottom: 0.75rem;
}
.post-content p { color: var(--text); }
.post-content a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: var(--border-brand);
    text-underline-offset: 3px;
    transition: text-decoration-color 200ms ease;
}
.post-content a:hover { text-decoration-color: var(--accent); }
.post-content ul, .post-content ol {
    padding-inline-start: 1.5rem;
    color: var(--text);
}
.post-content ul { list-style: disc; }
.post-content ol { list-style: decimal; }
.post-content li { margin-bottom: 0.5rem; }
.post-content blockquote {
    border-inline-start: 3px solid var(--accent);
    background: var(--bg-elevated);
    padding: 1.25rem 1.5rem;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--text);
    font-style: italic;
}
[dir="rtl"] .post-content blockquote { border-radius: var(--radius-md) 0 0 var(--radius-md); }
.post-content code {
    font-family: 'JetBrains Mono', monospace;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    padding: 0.15rem 0.4rem;
    border-radius: 5px;
    font-size: 0.9em;
    color: var(--accent);
}
.post-content pre {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
}
.post-content pre code { background: none; border: none; padding: 0; color: var(--text); }
.post-content img {
    border-radius: var(--radius-md);
    margin: 2rem 0;
    border: 1px solid var(--border);
}
.post-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 3rem 0;
}

/* Related posts */
.related-section {
    border-top: 1px solid var(--border);
    padding: 4rem 0;
    margin-top: 4rem;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.4rem;
    padding: 2rem 0 4rem;
}
.pagination a, .pagination span {
    min-width: 40px;
    height: 40px;
    display: grid; place-items: center;
    border-radius: 10px;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0 0.6rem;
    transition: all 150ms ease;
    font-family: 'JetBrains Mono', monospace;
}
.pagination a:hover { color: var(--text); border-color: var(--border-strong); background: var(--bg-elevated); }
.pagination .current {
    background: linear-gradient(135deg, var(--brand-400), var(--brand-600));
    color: #03150e;
    border-color: transparent;
}

/* 404 */
.error-page {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 1.5rem;
}
.error-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(5rem, 15vw, 9rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.05em;
    background: linear-gradient(135deg, var(--brand-300), var(--brand-600));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

/* ============================================================
 *  RTL Support
 * ============================================================ */
[dir="rtl"] body {
    font-family: 'Manrope', 'Segoe UI', Tahoma, sans-serif;
}
[dir="rtl"] .nav-links { direction: rtl; }
[dir="rtl"] .check-icon { transform: scaleX(-1); }

/* ============================================================
 *  Reduced motion
 * ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .hero-title .word, .hero-subtitle, .hero-cta, .hero-metrics { opacity: 1; transform: none; }
}

/* ============================================================
 *  Selection / Scrollbar
 * ============================================================ */
::selection { background: var(--accent); color: #03150e; }

* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 8px; }
*::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ============================================================
 *  Reveal on scroll
 * ============================================================ */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }