:root {
    --bg-base: #0b1120;
    --bg-elev: #131a2e;
    --bg-elev-2: #1a2240;
    --border: rgba(148, 163, 184, 0.15);
    --border-strong: rgba(148, 163, 184, 0.28);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #60a5fa;
    --accent-hover: #93c5fd;
    --accent-soft: rgba(96, 165, 250, 0.1);
    --success: #34d399;
    --warn: #fbbf24;
}

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

/* Koyu tuval: sayfalar arası geçişte tarayıcının varsayılan beyaz boyamasını
   engeller (yeni sayfa CSS'i boyanana kadar görünen "blink" buradan gelir). */
html { scroll-behavior: smooth; color-scheme: dark; background-color: var(--bg-base); }

/* Çok-sayfalı sitede sayfalar arası yumuşak çapraz geçiş (Chromium). Destek
   yoksa sessizce yok sayılır; koyu tuval sayesinde yine de kesik beyazlama olmaz. */
@view-transition { navigation: auto; }
[id] { scroll-margin-top: 84px; }

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    background:
        radial-gradient(ellipse at top, rgba(96, 165, 250, 0.06), transparent 50%),
        radial-gradient(ellipse at bottom, rgba(167, 139, 250, 0.04), transparent 50%),
        var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

/* ── Nav ──────────────────────────────────────────── */
nav {
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0;
    backdrop-filter: blur(12px);
    background: rgba(11, 17, 32, 0.85);
    z-index: 10;
}
nav .nav-row { display: flex; justify-content: space-between; align-items: center; }
.brand {
    display: inline-flex; align-items: center; gap: 0.6rem;
    font-size: 1.45rem; font-weight: 800; letter-spacing: -0.02em;
    color: var(--text-primary); text-decoration: none;
}
.brand .mark {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border-radius: 9px;
    background: linear-gradient(135deg, #2563eb, #60a5fa);
    color: #fff; font-weight: 800; font-size: 1.15rem; line-height: 1;
}
.nav-right { display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; justify-content: flex-end; }
.nav-link { color: var(--text-secondary); text-decoration: none; font-size: 0.9375rem; font-weight: 500; padding-bottom: 3px; border-bottom: 2px solid transparent; transition: color 0.15s ease, border-color 0.15s ease; }
.nav-link:hover { color: var(--text-primary); }
.nav-link.active { color: var(--text-primary); border-bottom-color: var(--accent); }
.nav-hide-sm { }
.version-badge {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-size: 0.75rem; color: var(--text-muted);
    padding: 0.22rem 0.65rem; background: transparent;
    border-radius: 999px; border: 1px solid var(--border);
    font-variant-numeric: tabular-nums; margin-left: 0.4rem;
}
.version-badge::before { content: ""; width: 6px; height: 6px; border-radius: 999px; background: var(--success); display: inline-block; }

/* ── Mobil menü (hamburger) — masaüstünde gizli ───── */
.nav-toggle {
    display: none; flex-direction: column; justify-content: center; gap: 5px;
    width: 44px; height: 40px; padding: 9px 10px;
    background: transparent; border: 1px solid var(--border-strong);
    border-radius: 9px; cursor: pointer;
}
.nav-toggle span { display: block; height: 2px; width: 100%; background: var(--text-primary); border-radius: 2px; transition: transform 0.2s ease, opacity 0.2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero ─────────────────────────────────────────── */
.hero { padding: 4.5rem 0 3rem; text-align: center; }
.eyebrow {
    display: inline-block; font-size: 0.8125rem; font-weight: 600;
    letter-spacing: 0.03em; color: var(--accent);
    background: var(--accent-soft); border: 1px solid rgba(96, 165, 250, 0.25);
    padding: 0.3rem 0.85rem; border-radius: 999px; margin-bottom: 1.5rem;
}
.hero h1 {
    font-size: clamp(2.25rem, 5vw, 3.5rem); font-weight: 800;
    letter-spacing: -0.03em; line-height: 1.12; margin-bottom: 1.5rem;
    max-width: 840px; margin-left: auto; margin-right: auto;
}
.hero h1 .accent { color: var(--accent); }
.hero .subtitle {
    font-size: 1.1875rem; color: var(--text-secondary);
    max-width: 680px; margin: 0 auto 2.25rem;
}
.cta-row { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.85rem 1.5rem; border-radius: 0.625rem; font-weight: 500;
    font-size: 0.9375rem; text-decoration: none; transition: all 0.15s ease;
    border: 1px solid transparent; cursor: pointer; font-family: inherit;
}
.btn-primary { background: var(--accent); color: #0b1120; font-weight: 600; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-secondary { background: var(--bg-elev); color: var(--text-primary); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--bg-elev-2); border-color: rgba(148, 163, 184, 0.45); }

/* ── Ekran görüntüsü çerçevesi ─────────────────────── */
.shot {
    border: 1px solid var(--border-strong); border-radius: 14px; overflow: hidden;
    background: var(--bg-elev);
    box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(96, 165, 250, 0.05);
}
.shot img { display: block; width: 100%; height: auto; }
.hero-shot { max-width: 980px; margin: 3rem auto 0; }
.shot-caption { text-align: center; color: var(--text-muted); font-size: 0.8125rem; margin-top: 0.85rem; }

/* ── Uygulama penceresi çerçevesi ─────────────────── */
.app-window { border: 1px solid var(--border-strong); border-radius: 14px; overflow: hidden; background: var(--bg-elev); box-shadow: 0 40px 90px -25px rgba(0,0,0,0.65), 0 0 0 1px rgba(96,165,250,0.06); }
.app-window .titlebar { display: flex; align-items: center; gap: 0.6rem; padding: 0.7rem 1rem; background: var(--bg-elev-2); border-bottom: 1px solid var(--border); }
.app-window .dots { display: inline-flex; gap: 0.45rem; }
.app-window .dots i { width: 11px; height: 11px; border-radius: 999px; display: inline-block; }
.app-window .dots .r { background: #ff5f57; } .app-window .dots .y { background: #febc2e; } .app-window .dots .g { background: #28c840; }
.app-window .title { font-size: 0.8rem; color: var(--text-muted); margin: 0 auto; padding-right: 2rem; }
.app-window img { display: block; width: 100%; height: auto; }
.hero-window { max-width: 1000px; margin: 3rem auto 0; }

/* ── Veri güvenliği görseli (panel) ───────────────── */
.privacy-visual { background: linear-gradient(135deg, rgba(52,211,153,0.09), rgba(96,165,250,0.05)); border: 1px solid rgba(52,211,153,0.22); border-radius: 1rem; padding: 2.75rem 2rem; text-align: center; }
.privacy-visual .big-icon { color: var(--success); display: inline-flex; margin-bottom: 1.25rem; }
.privacy-visual .big-icon svg { width: 60px; height: 60px; }
.privacy-visual .chips { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
.privacy-visual .chips span { font-size: 0.8rem; color: var(--success); background: rgba(52,211,153,0.1); border: 1px solid rgba(52,211,153,0.25); padding: 0.32rem 0.75rem; border-radius: 999px; }

/* ── Bölüm ────────────────────────────────────────── */
section { padding: 4rem 0; }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 {
    font-size: clamp(1.625rem, 3vw, 2.125rem); font-weight: 800;
    letter-spacing: -0.02em; margin-bottom: 0.5rem;
}
.section-header p { color: var(--text-secondary); font-size: 1.0625rem; max-width: 640px; margin: 0 auto; }

/* ── Platform tezi ────────────────────────────────── */
.thesis {
    background: linear-gradient(135deg, rgba(96,165,250,0.07), rgba(167,139,250,0.05));
    border: 1px solid rgba(96,165,250,0.18); border-radius: 1rem;
    padding: 2.5rem 2rem; text-align: center;
}
.thesis h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 1rem; }
.thesis p { color: var(--text-secondary); font-size: 1.0625rem; max-width: 760px; margin: 0 auto; line-height: 1.65; }
.thesis .pills { display: flex; gap: 0.6rem; justify-content: center; flex-wrap: wrap; margin-top: 1.75rem; }
.thesis .pill {
    font-size: 0.875rem; font-weight: 600; color: var(--text-primary);
    background: var(--bg-elev); border: 1px solid var(--border-strong);
    padding: 0.5rem 1rem; border-radius: 999px;
}

/* ── Özellik satırları ────────────────────────────── */
.feature-row { display: grid; grid-template-columns: 1fr 1.25fr; gap: 3rem; align-items: center; margin-bottom: 4.5rem; }
.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse .feature-text { order: 2; }
.feature-row.reverse .feature-media { order: 1; }
.feature-tag { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.75rem; }
.feature-tag .beta { color: var(--warn); border: 1px solid rgba(251,191,36,0.3); border-radius: 999px; padding: 0.05rem 0.45rem; font-size: 0.7rem; margin-left: 0.4rem; }
.feature-text h3 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 0.85rem; line-height: 1.25; }
.feature-text p { color: var(--text-secondary); font-size: 1rem; line-height: 1.6; }
.feature-text ul { list-style: none; margin-top: 1rem; display: grid; gap: 0.5rem; }
.feature-text li { color: var(--text-secondary); font-size: 0.9375rem; padding-left: 1.5rem; position: relative; }
.feature-text li::before { content: "✓"; position: absolute; left: 0; color: var(--success); font-weight: 700; }
.media-stack { display: grid; gap: 0.85rem; }
.media-stack .label { font-size: 0.78rem; color: var(--text-muted); margin: 0.4rem 0 0; text-align: center; }

/* ── Servise özel (açık küme) kartı ───────────────── */
.open-slot {
    margin-top: 1rem; border: 1px dashed var(--border-strong); border-radius: 0.875rem;
    padding: 1.5rem 1.75rem; text-align: center; color: var(--text-secondary);
    background: rgba(96,165,250,0.03);
}
.open-slot strong { color: var(--text-primary); }

/* ── Veri güvenliği ───────────────────────────────── */
#guvenlik { background: linear-gradient(180deg, transparent, rgba(52,211,153,0.03)); }
.sec-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.sec-card {
    background: var(--bg-elev); border: 1px solid rgba(52,211,153,0.18);
    border-radius: 0.875rem; padding: 1.75rem;
}
.sec-icon { color: var(--success); margin-bottom: 1rem; display: inline-flex; }
.sec-icon svg { width: 26px; height: 26px; }
.sec-card h3 { font-size: 1.0625rem; font-weight: 600; margin-bottom: 0.4rem; }
.sec-card p { color: var(--text-secondary); font-size: 0.9375rem; line-height: 1.55; }
.sec-badge { text-align: center; margin-top: 2rem; color: var(--text-muted); font-size: 0.875rem; }
.sec-badge strong { color: var(--success); }

/* ── Nasıl çalışır ────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.step { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 0.875rem; padding: 1.75rem; }
.step .num {
    display: inline-flex; align-items: center; justify-content: center;
    width: 2rem; height: 2rem; border-radius: 8px; background: var(--accent-soft);
    border: 1px solid rgba(96,165,250,0.3); color: var(--accent); font-weight: 700; margin-bottom: 1rem;
}
.step h3 { font-size: 1.0625rem; font-weight: 600; margin-bottom: 0.4rem; }
.step p { color: var(--text-secondary); font-size: 0.9375rem; line-height: 1.55; }

/* ── Araç kartları (ana sayfa, /araclar'a yönlendirir) ── */
.tool-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.25rem; }
.tool-card { display: flex; flex-direction: column; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 0.875rem; padding: 1.5rem; text-decoration: none; transition: all 0.15s ease; }
.tool-card:hover { border-color: rgba(96,165,250,0.35); transform: translateY(-2px); }
.tool-card .tool-tag { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.6rem; }
.tool-card h3 { font-size: 1.0625rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.4rem; letter-spacing: -0.01em; }
.tool-card p { color: var(--text-secondary); font-size: 0.9375rem; line-height: 1.55; flex: 1; }
.tool-card .tool-link { color: var(--accent); font-size: 0.875rem; font-weight: 600; margin-top: 1rem; }

/* ── Galeri ───────────────────────────────────────── */
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.25rem; }
.gallery figure { margin: 0; }

/* ── Download ─────────────────────────────────────── */
.download-section { background: var(--bg-elev); border-radius: 1rem; padding: 2.5rem 1.75rem; border: 1px solid var(--border); }
.platform-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; max-width: 880px; margin: 0 auto; }
.platform-card { background: var(--bg-elev-2); border: 1px solid var(--border); border-radius: 0.875rem; padding: 1.75rem 1.5rem; text-align: center; position: relative; display: flex; flex-direction: column; align-items: center; }
.platform-card.disabled { opacity: 0.5; }
.platform-icon { margin-bottom: 1rem; display: inline-flex; color: var(--text-primary); opacity: 0.92; }
.platform-icon svg { width: 38px; height: 38px; display: block; }
.platform-card h3 { font-size: 1.125rem; font-weight: 600; margin-bottom: 0.25rem; letter-spacing: -0.01em; }
.platform-card .arch { color: var(--text-muted); font-size: 0.875rem; margin-bottom: 1.25rem; font-variant-numeric: tabular-nums; }
.platform-card .download-btn { width: 100%; }
.mac-buttons { width: 100%; display: flex; flex-direction: column; gap: 0.5rem; }
.mac-hint { margin-top: 0.75rem; font-size: 0.75rem; color: var(--text-muted); line-height: 1.4; }
.platform-card .download-btn:disabled, .platform-card.disabled .download-btn { background: var(--bg-base); color: var(--text-muted); cursor: not-allowed; border: 1px solid var(--border); font-weight: 500; }
.platform-card .download-btn:disabled:hover, .platform-card.disabled .download-btn:hover { background: var(--bg-base); transform: none; }
.soon-badge { position: absolute; top: 0.75rem; right: 0.75rem; font-size: 0.6875rem; color: var(--warn); background: rgba(251,191,36,0.1); border: 1px solid rgba(251,191,36,0.25); padding: 0.18rem 0.55rem; border-radius: 999px; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 500; }
.beta-note { text-align: center; margin-top: 1.5rem; color: var(--text-secondary); font-size: 0.9375rem; }
.beta-note .tag { color: var(--warn); font-weight: 600; }
.install-notes { margin-top: 2rem; display: grid; gap: 0.75rem; max-width: 780px; margin-left: auto; margin-right: auto; }
.install-note { background: var(--bg-elev-2); border: 1px solid var(--border); border-radius: 0.625rem; padding: 0.875rem 1.125rem; font-size: 0.875rem; color: var(--text-secondary); display: flex; gap: 0.75rem; align-items: flex-start; }
.install-note .label { color: var(--text-primary); font-weight: 600; flex-shrink: 0; width: 5.5rem; }
.install-note p { line-height: 1.55; }
.install-note details { font-size: 0.875rem; }
.install-note summary { cursor: pointer; color: var(--accent); font-weight: 500; list-style: none; margin-top: 0.4rem; }
.install-note summary::-webkit-details-marker { display: none; }
.install-note summary::before { content: "▸ "; display: inline-block; transition: transform 0.15s ease; }
.install-note details[open] summary::before { transform: rotate(90deg); }
.install-note ol { padding-left: 1.25rem; margin-top: 0.5rem; line-height: 1.7; color: var(--text-secondary); }
.install-note ol li { margin-bottom: 0.15rem; }
.install-note ol li .note { display: block; margin-top: 0.25rem; font-size: 0.8125rem; color: var(--text-muted); line-height: 1.5; }

/* ── İş Akışları ve Hizmetler ─────────────────────── */
.group-header { margin: 0 0 2.5rem; }
.group-header h2 { font-size: clamp(1.5rem, 3vw, 1.875rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.45rem; }
.group-header p { color: var(--text-secondary); font-size: 1.0625rem; max-width: 640px; }
.context-tag { display: inline-block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.02em; padding: 0.22rem 0.75rem; border-radius: 999px; margin-bottom: 0.85rem; }
.context-tag.unit { color: var(--accent); background: var(--accent-soft); border: 1px solid rgba(96,165,250,0.25); }
.context-tag.general { color: var(--success); background: rgba(52,211,153,0.08); border: 1px solid rgba(52,211,153,0.25); }
.type-tag { display: inline-block; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; color: var(--text-muted); background: var(--bg-elev-2); border: 1px solid var(--border); padding: 0.2rem 0.6rem; border-radius: 999px; margin-bottom: 0.85rem; margin-right: 0.45rem; }
.demo-link { margin-top: 1.25rem; }
.demo-link.btn-secondary { background: var(--accent-soft); color: var(--accent-hover); border-color: rgba(96,165,250,0.45); }
.demo-link.btn-secondary:hover { background: rgba(96,165,250,0.2); border-color: rgba(96,165,250,0.6); transform: translateY(-1px); }
.media-placeholder { display: flex; align-items: center; justify-content: center; min-height: 240px; border: 1px dashed var(--border-strong); border-radius: 14px; color: var(--text-muted); background: rgba(96,165,250,0.03); font-size: 0.95rem; text-align: center; padding: 1.5rem; }
.mini-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.9rem; }
.mini-gallery.single { grid-template-columns: 1fr; }
.mini-gallery figure { margin: 0; }
.mini-gallery figcaption { font-size: 0.78rem; color: var(--text-muted); text-align: center; margin-top: 0.45rem; }

/* ── Deste galeri (tek büyük görsel, arkasında diğerleri) ── */
.gallery-stack { position: relative; }
.gallery-stack .stack-back { position: absolute; inset: 0; border-radius: 14px; border: 1px solid var(--border-strong); background: var(--bg-elev); box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5); }
.gallery-stack .stack-back-1 { transform: translate(7px, 7px) rotate(1.2deg); opacity: 0.65; }
.gallery-stack .stack-back-2 { transform: translate(14px, 14px) rotate(2.4deg); opacity: 0.4; }
.gallery-stack .stack-front { position: relative; z-index: 2; }
.gallery-stack .stack-badge { position: absolute; bottom: 0.7rem; right: 0.7rem; z-index: 3; display: inline-flex; align-items: center; gap: 0.35rem; background: rgba(11,17,32,0.82); border: 1px solid var(--border-strong); color: var(--text-secondary); font-size: 0.75rem; padding: 0.28rem 0.65rem; border-radius: 999px; backdrop-filter: blur(6px); pointer-events: none; }

/* ── Lightbox navigasyon ──────────────────────────── */
.lb-nav { position: fixed; top: 50%; transform: translateY(-50%); z-index: 101; background: rgba(11,17,32,0.7); border: 1px solid var(--border-strong); color: #fff; width: 48px; height: 48px; border-radius: 999px; font-size: 1.9rem; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background 0.15s ease; }
.lb-nav:hover { background: rgba(96,165,250,0.35); }
.lb-prev { left: 2rem; } .lb-next { right: 2rem; }
.lb-bar { position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%); z-index: 101; display: inline-flex; align-items: center; gap: 0.7rem; max-width: 90vw; background: rgba(11,17,32,0.8); padding: 0.45rem 1.1rem; border-radius: 999px; border: 1px solid var(--border-strong); backdrop-filter: blur(6px); }
.lb-caption { color: var(--text-primary); font-size: 0.9rem; }
.lb-caption:not(:empty) + .lb-counter::before { content: "·"; margin-right: 0.7rem; color: var(--text-subtle, #475569); }
.lb-counter { color: var(--text-muted); font-size: 0.82rem; font-variant-numeric: tabular-nums; }
@media (max-width: 640px) { .lb-prev { left: 0.5rem; } .lb-next { right: 0.5rem; } }

/* ── Görsel odak modu (lightbox) ──────────────────── */
.shot img { cursor: zoom-in; }
.lightbox { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 2rem; cursor: zoom-out; background: rgba(8, 12, 22, 0.92); backdrop-filter: blur(4px); }
.lightbox img { max-width: 95%; max-height: 95%; border-radius: 10px; border: 1px solid var(--border-strong); box-shadow: 0 30px 90px rgba(0, 0, 0, 0.7); }

/* ── Rehber sayfası ───────────────────────────────── */
.page-head { padding: 3.5rem 0 1.5rem; text-align: center; }
.page-head h1 { font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.75rem; }
.page-head p { color: var(--text-secondary); font-size: 1.0625rem; max-width: 660px; margin: 0 auto; }
.guide-layout { display: grid; grid-template-columns: 230px 1fr; gap: 3rem; align-items: start; padding: 1rem 0 4rem; }
.toc { position: sticky; top: 88px; }
.toc h4 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); margin-bottom: 0.75rem; }
.toc a { display: block; color: var(--text-secondary); text-decoration: none; font-size: 0.9375rem; padding: 0.4rem 0 0.4rem 0.85rem; border-left: 2px solid var(--border); }
.toc a:hover { color: var(--text-primary); border-left-color: var(--accent); }
.guide-section { padding: 2rem 0 2.5rem; border-bottom: 1px solid var(--border); }
.guide-section:last-child { border-bottom: none; }
.guide-section h2 {
    font-size: 1.625rem; font-weight: 700; letter-spacing: -0.015em;
    margin-bottom: 1.1rem; padding-bottom: 0.6rem;
    border-bottom: 2px solid var(--accent-soft); display: inline-block;
}
.guide-section h3 {
    font-size: 0.8125rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.05em; color: var(--accent); margin: 1.6rem 0 0.55rem;
}
.guide-section p { color: var(--text-secondary); line-height: 1.7; margin-bottom: 0.85rem; }
.guide-section ul { margin: 0.5rem 0 1rem 1.25rem; color: var(--text-secondary); line-height: 1.7; }
.guide-section li { margin-bottom: 0.4rem; }
.guide-section strong { color: var(--text-primary); }
.guide-section a { color: var(--accent); text-decoration: none; }
.guide-section a:hover { text-decoration: underline; }
.callout { background: var(--bg-elev); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 0.5rem; padding: 1rem 1.25rem; margin: 1rem 0; color: var(--text-secondary); line-height: 1.65; }
.callout.good { border-left-color: var(--success); }

/* ── Footer ───────────────────────────────────────── */
footer { border-top: 1px solid var(--border); padding: 2.25rem 0 2rem; margin-top: 2rem; color: var(--text-muted); font-size: 0.875rem; text-align: center; }
footer .brand-foot { color: var(--text-secondary); font-weight: 600; }
footer .tagline { margin-top: 0.35rem; color: var(--text-secondary); font-size: 0.95rem; }
footer .legal { margin-top: 0.5rem; color: var(--text-muted); opacity: 0.85; }

@media (max-width: 860px) {
    .guide-layout { grid-template-columns: 1fr; gap: 1rem; }
    .toc { position: static; }
}
@media (max-width: 760px) {
    .feature-row { grid-template-columns: 1fr; gap: 1.5rem; }
    .feature-row.reverse .feature-text, .feature-row.reverse .feature-media { order: initial; }
    .nav-hide-sm { display: none; }
}

/* ── Mobil nav: hamburger + açılır menü ───────────── */
@media (max-width: 820px) {
    .nav-toggle { display: flex; }
    .nav-right {
        position: absolute; top: 100%; left: 0; right: 0;
        flex-direction: column; align-items: stretch; gap: 0;
        background: rgba(11, 17, 32, 0.98); backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border);
        box-shadow: 0 26px 44px -22px rgba(0, 0, 0, 0.7);
        padding: 0.4rem 1.5rem 1rem; display: none;
    }
    .nav-right.open { display: flex; }
    .nav-right .nav-link {
        width: 100%; font-size: 1rem; padding: 0.85rem 0.2rem;
        border-bottom: 1px solid var(--border);
    }
    .nav-right .nav-link.active { border-bottom-color: var(--border); color: var(--accent); }
    .nav-right .version-badge { margin: 0.9rem 0.2rem 0; align-self: flex-start; }
}