/* --- RESET & TEMEL AYARLAR --- */
:root {
    --bg-white: #ffffff;
    --bg-gray: #f9fafb;
    --text-main: #0f172a;
    --text-sub: #64748b;
    --accent: #000000;
    --border: #e2e8f0;
    --brand-blue: #2563eb;
    --glass: rgba(255, 255, 255, 0.85);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-main); background: var(--bg-white);
    line-height: 1.5; -webkit-font-smoothing: antialiased;
    display: flex; flex-direction: column;
    height: 100vh; /* Tam Ekran */
}

/* Sayfa Modları */
body.home-page { overflow: hidden; }
body.help-page { height: auto; min-height: 100vh; overflow-y: auto; }

a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; width: 100%; }
.bg-gray { background: var(--bg-gray); }

/* --- NAVBAR --- */
.navbar {
    height: 70px; display: flex; align-items: center;
    border-bottom: 1px solid rgba(0,0,0,0.04);
    background: var(--glass); backdrop-filter: blur(20px);
    z-index: 100; flex-shrink: 0;
}
.nav-inner { width: 100%; display: flex; justify-content: space-between; align-items: center; }

.logo-group { display: flex; align-items: center; gap: 10px; }
.nav-logo { width: 32px; border-radius: 6px; box-shadow: 0 2px 5px rgba(0,0,0,0.05); }
.nav-title { font-weight: 700; font-size: 20px; letter-spacing: -0.01em; color: var(--text-main); }

.dev-link { font-size: 13px; color: var(--text-sub); font-weight: 500; opacity: 0.8; transition: 0.2s;}
.dev-link:hover { opacity: 1; color: var(--brand-blue); }
.back-link { font-size: 14px; font-weight: 600; color: var(--text-sub); display: flex; align-items: center; gap: 6px;}
.back-link:hover { color: var(--text-main); transform: translateX(-2px); }

/* --- HERO BÖLÜMÜ --- */
.hero {
    flex: 1; display: flex; align-items: center; justify-content: center;
    overflow: hidden; position: relative; padding: 0;
}

.hero-container {
    display: flex; align-items: center; justify-content: space-between; gap: 50px;
    width: 100%; position: relative; z-index: 10; margin-top: -20px;
}

/* Sol Taraf */
.hero-content { flex: 1; max-width: 580px; }

.hero-title {
    font-size: 54px; line-height: 1.1; font-weight: 800; letter-spacing: -2px;
    margin-bottom: 24px; color: var(--text-main);
}

/* YENİ: Başlık Vurgusu (Siyah -> Mavi Geçiş) */
.gradient-text-highlight {
    background: linear-gradient(135deg, #363738 0%, #517ab9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* YENİ: Alt Metin (Sofistike Koyu Gri Geçiş) */
.hero-desc {
    font-size: 19px; font-weight: 500; line-height: 1.6; letter-spacing: -0.01em;
    max-width: 520px; margin-bottom: 36px;
}
.gradient-text-subtle {
    background: linear-gradient(180deg, #334155 0%, #64748b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Butonlar */
.cta-wrapper { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }

.btn {
    padding: 14px 28px; border-radius: 12px; font-size: 15px; font-weight: 600;
    display: inline-flex; align-items: center; gap: 8px; transition: all 0.3s ease;
    cursor: pointer; position: relative; overflow: hidden;
}
.btn-shine::after {
    content: ""; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s; pointer-events: none;
}
.btn-shine:hover::after { left: 100%; transition: 0.4s ease-in-out; }

.btn-primary {
    background: var(--text-main); color: white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.btn-primary:hover { transform: translateY(-2px); background: #000; box-shadow: 0 12px 24px rgba(0,0,0,0.2); }

.btn-secondary {
    background: white; color: var(--text-main); border: 1px solid var(--border);
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}
.btn-secondary:hover { background: #fafafa; border-color: #d4d4d4; transform: translateY(-2px); }

.chrome-guide-link { font-size: 14px; color: var(--text-sub); margin-left: 4px; }
.chrome-guide-link a { color: var(--brand-blue); font-weight: 600; border-bottom: 1px solid transparent; }
.chrome-guide-link a:hover { border-color: var(--brand-blue); }

/* --- MOCKUP (SAĞ TARAF) --- */
.hero-visual {
    flex: 1; display: flex; justify-content: flex-end; position: relative;
    perspective: 1000px;
}

.browser-window {
    width: 100%; max-width: 420px;
    background: white; border-radius: 16px;
    box-shadow: 0 30px 60px -12px rgba(0,0,0,0.12), 0 0 0 1px rgba(0,0,0,0.04);
    overflow: hidden; position: relative; z-index: 10;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}
.browser-window:hover { transform: translateY(-5px); }

.window-header {
    height: 36px; background: #fafafa; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; padding: 0 12px; gap: 10px;
}
.dots { display: flex; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.red { background: #ff5f57; } .yellow { background: #febc2e; } .green { background: #28c840; }

.address-bar {
    flex: 1; height: 24px; background: white; border: 1px solid var(--border);
    border-radius: 6px; display: flex; align-items: center; padding: 0 10px;
    font-size: 11px; color: #a1a1aa;
}

.window-body {
    padding: 40px; background-color: #ffffff;
    background-image: radial-gradient(#e5e7eb 1px, transparent 1px);
    background-size: 20px 20px;
    display: flex; justify-content: center; align-items: center;
    min-height: 420px;
}

/* --- APP MOCKUP --- */
.app-mockup {
    width: 340px; background: white;
    border: 1px solid var(--border); border-radius: 12px;
    box-shadow: 0 15px 35px -5px rgba(0,0,0,0.08);
    display: flex; flex-direction: column; overflow: hidden;
}
.mock-header {
    height: 50px; border-bottom: 1px solid #f1f5f9;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    font-size: 14px; font-weight: 600; color: var(--text-main);
}
.mock-nav-wrapper { padding: 12px 16px 0; background: white; }
.mock-nav-segment {
    background: #f8fafc; padding: 3px; border-radius: 8px;
    display: flex; border: 1px solid var(--border);
}
.mock-tab {
    flex: 1; padding: 6px; text-align: center; font-size: 12px; font-weight: 500;
    color: var(--text-sub); border-radius: 6px;
}
.mock-tab.active {
    background: white; color: var(--text-main); font-weight: 600;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.mock-content { padding: 16px; }
.mock-drop-zone {
    width: 100%; height: 200px;
    border: 1px dashed #cbd5e1; border-radius: 10px;
    background: #f8fafc;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    color: #64748b; gap: 12px;
}
.mock-icon-box { color: #94a3b8; }
.mock-text { font-size: 12px; font-weight: 500; color: #475569; text-align: center; line-height: 1.5; }
.mock-text b { color: #1e293b; background: #e2e8f0; padding: 2px 5px; border-radius: 4px; font-family: monospace; }
.mock-footer {
    text-align: center; padding: 10px; border-top: 1px solid var(--border);
    font-size: 10px; font-weight: 600; color: #cbd5e1; background: #f8fafc;
}

.glow-effect {
    position: absolute; top: 50%; right: -15%; transform: translateY(-50%);
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(0, 112, 243, 0.08) 0%, transparent 60%);
    z-index: 1; pointer-events: none;
}

/* --- FOOTER & HELP --- */
.footer { border-top: 1px solid var(--border); padding: 24px 0; flex-shrink: 0; background: white; }
.footer-inner { display: flex; justify-content: space-between; color: var(--text-sub); font-size: 12px; }
.signature strong { color: var(--text-main); font-weight: 600; }

/* Help Page */
.help-wrapper { padding: 60px 24px 100px; max-width: 800px; margin: 0 auto; }
.help-header { text-align: center; margin-bottom: 60px; }
.help-header h1 { font-size: 36px; font-weight: 800; margin-bottom: 16px; }
.steps-container { display: flex; flex-direction: column; gap: 24px; }
.step-card { background: white; border: 1px solid var(--border); border-radius: 16px; padding: 32px; display: flex; gap: 24px; align-items: flex-start; }
.step-badge { width: 40px; height: 40px; background: var(--text-main); color: white; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; flex-shrink: 0; }
.step-card.warning { background: #fff1f2; border-color: #fecaca; }
.step-card.warning .step-badge { background: #e11d48; }
.chrome-link-box { background: #f1f5f9; border: 1px solid #cbd5e1; color: #334155; padding: 14px 20px; border-radius: 10px; cursor: pointer; font-family: 'Monaco', monospace; font-size: 13px; font-weight: 600; display: inline-flex; align-items: center; justify-content: space-between; width: 100%; max-width: 450px; }
.visual-box { background: #f8fafc; border: 1px solid var(--border); border-radius: 10px; padding: 16px; display: inline-flex; align-items: center; gap: 12px; font-weight: 600; font-size: 13px; color: #334155; }
.folder-icon { width: 24px; height: 24px; color: #f59e0b; }
.mock-btn-load { background: #f8f9fa; color: #3c4043; padding: 8px 16px; border-radius: 6px; font-size: 13px; font-weight: 600; border: 1px solid #dadce0; display: flex; align-items: center; gap: 8px; }

/* Animation */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.fade-in-up { opacity: 0; animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
.delay-200 { animation-delay: 0.2s; }
.delay-400 { animation-delay: 0.4s; }

/* RESPONSIVE */
@media (max-width: 900px) {
    body { height: auto; overflow-y: auto; }
    .hero { padding: 40px 0; text-align: center; }
    .hero-container { flex-direction: column; gap: 40px; margin-top: 0; }
    .hero-content { max-width: 100%; }
    .hero-title { font-size: 42px; letter-spacing: -1px; }
    .cta-wrapper { justify-content: center; }
    .hero-visual { display: none; }
    .footer-inner { flex-direction: column; gap: 12px; align-items: center; }
}