/* ═══════════════════════════════════════════════════════════════
   OxiSec SIEM — Site CSS
   Aesthetic: SOC Room / Tactical / Technical Authority
   Palette: Deep blue + mint-teal accent + warm alert
   ═══════════════════════════════════════════════════════════════ */

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: 'Manrope', system-ui, -apple-system, sans-serif;
    font-size: 15px;
    line-height: 1.65;
    background: var(--bg);
    color: var(--tx);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

/* ─── Variables ─── */
:root {
    /* Core palette — deep SOC */
    --bg:       #080b14;
    --bg-2:     #0d1220;
    --bg-3:     #141a2e;
    --bg-4:     #1a2140;
    --surface:  #10162a;

    /* Borders & lines */
    --bd:       #1e2640;
    --bd-2:     #2a3458;
    --bd-3:     #3a4470;

    /* Text */
    --tx:       #e5e9f2;
    --tx-2:     #aab2c8;
    --tx-3:     #8891a8;
    --tx-4:     #5e6880;

    /* Accent — mint/teal for "secure/stopped" */
    --ac:       #00e0a3;
    --ac-2:     #00bf8a;
    --ac-soft:  rgba(0, 224, 163, 0.1);
    --ac-glow:  rgba(0, 224, 163, 0.4);

    /* Cool blue — analytical */
    --bl:       #4d8fff;
    --bl-soft:  rgba(77, 143, 255, 0.12);

    /* Warm — alert/warning */
    --wr:       #ff6b4a;
    --wr-soft:  rgba(255, 107, 74, 0.12);

    --yl:       #ffc857;
    --yl-soft:  rgba(255, 200, 87, 0.12);

    /* Severity */
    --sev-crit: #ff3b5c;
    --sev-high: #ff6b4a;
    --sev-med:  #ffa94d;
    --sev-low:  #4d8fff;

    /* Typography */
    --font-body: 'Manrope', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
    --font-display: 'Manrope', system-ui, sans-serif;

    /* Layout */
    --wrap: 1200px;
    --wrap-wide: 1400px;
    --nav-h: 72px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(0, 224, 163, 0.15);
}

/* ─── Selection ─── */
::selection { background: var(--ac); color: var(--bg); }

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bd-2); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--bd-3); }

/* ─── Typography classes ─── */
.mono { font-family: var(--font-mono); }

h1, h2, h3, h4, h5 {
    font-family: var(--font-display);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: var(--tx);
}

h1 { font-size: clamp(2.5rem, 5vw + 1rem, 4.25rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(2rem, 3vw + 1rem, 3rem); letter-spacing: -0.028em; }
h3 { font-size: clamp(1.375rem, 1.5vw + 1rem, 1.75rem); letter-spacing: -0.02em; }
h4 { font-size: 1.125rem; font-weight: 700; }

p { color: var(--tx-2); font-size: 15.5px; line-height: 1.7; }
.lead { font-size: 18px; color: var(--tx-2); line-height: 1.7; max-width: 60ch; }

/* ─── Eyebrow — section kicker label ─── */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ac);
    margin-bottom: 20px;
}
.eyebrow::before {
    content: '';
    display: block;
    width: 20px;
    height: 1px;
    background: var(--ac);
}

/* ─── Layout ─── */
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap-wide { max-width: var(--wrap-wide); margin: 0 auto; padding: 0 24px; }

section { padding: 100px 0; position: relative; }
@media (max-width: 768px) { section { padding: 64px 0; } }

/* ─── Background grid pattern ─── */
.grid-bg {
    position: relative;
}
.grid-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--bd) 1px, transparent 1px),
        linear-gradient(90deg, var(--bd) 1px, transparent 1px);
    background-size: 48px 48px;
    opacity: 0.35;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    pointer-events: none;
}

/* ─── Noise overlay ─── */
.noise::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.15 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    opacity: 0.4;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: overlay;
}

/* ─── Navigation ─── */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--nav-h);
    background: rgba(8, 11, 20, 0.85);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--bd);
}
.nav-inner {
    max-width: var(--wrap-wide);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 17px;
    letter-spacing: -0.03em;
    color: var(--tx);
}
.nav-logo-mark {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--ac), #00a074);
    display: grid;
    place-items: center;
    box-shadow: 0 0 20px var(--ac-glow);
    position: relative;
    flex-shrink: 0;
}
.nav-logo-mark::before {
    content: '';
    width: 12px; height: 12px;
    background: var(--bg);
    border-radius: 2px;
}
.nav-logo-sub {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.18em;
    color: var(--tx-4);
    text-transform: uppercase;
    font-weight: 500;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 40px;
}
.nav-link {
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;
    color: var(--tx-2);
    border-radius: 6px;
    transition: all 0.15s;
    position: relative;
}
.nav-link:hover { color: var(--tx); background: var(--bg-3); }
.nav-link.active { color: var(--ac); }
.nav-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav-toggle {
    display: none;
    padding: 8px;
    color: var(--tx);
}

@media (max-width: 900px) {
    .nav-menu { display: none; }
    .nav-toggle { display: block; }
}

/* ─── Buttons ─── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 22px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    line-height: 1;
    border: 1px solid transparent;
}
.btn-primary {
    background: var(--ac);
    color: var(--bg);
    box-shadow: 0 4px 14px var(--ac-glow);
}
.btn-primary:hover {
    background: var(--ac-2);
    transform: translateY(-1px);
    box-shadow: 0 8px 20px var(--ac-glow);
}
.btn-ghost {
    color: var(--tx);
    border-color: var(--bd-2);
    background: transparent;
}
.btn-ghost:hover { background: var(--bg-3); border-color: var(--bd-3); }
.btn-text { color: var(--tx-2); padding: 11px 8px; }
.btn-text:hover { color: var(--ac); }
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-arrow { transition: transform 0.18s; }
.btn:hover .btn-arrow { transform: translateX(3px); }

/* ─── Chip / Pill ─── */
.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    border-radius: 100px;
    border: 1px solid var(--bd-2);
    color: var(--tx-2);
    background: var(--bg-3);
}
.chip-accent { color: var(--ac); border-color: var(--ac); background: var(--ac-soft); }
.chip-warn { color: var(--wr); border-color: var(--wr); background: var(--wr-soft); }
.chip-dot::before {
    content: '';
    width: 6px; height: 6px; border-radius: 50%;
    background: currentColor;
    animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 currentColor; }
    50% { opacity: 0.8; box-shadow: 0 0 0 4px transparent; }
}

/* ─── Card ─── */
.card {
    background: var(--surface);
    border: 1px solid var(--bd);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.2s;
}
.card:hover { border-color: var(--bd-2); }
.card-glow:hover {
    border-color: var(--ac);
    box-shadow: 0 0 0 1px var(--ac), 0 12px 40px rgba(0, 224, 163, 0.15);
}

/* ─── Utility ─── */
.tx-mu { color: var(--tx-3); }
.tx-ac { color: var(--ac); }
.center { text-align: center; }
.hide-mobile { display: initial; }
@media (max-width: 768px) { .hide-mobile { display: none; } }

/* ─── Footer ─── */
.footer {
    padding: 80px 0 40px;
    background: var(--bg-2);
    border-top: 1px solid var(--bd);
    position: relative;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
}
@media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
.footer-col h5 {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.14em;
    color: var(--tx-4);
    text-transform: uppercase;
    margin-bottom: 18px;
}
.footer-col a {
    display: block;
    color: var(--tx-2);
    font-size: 13.5px;
    padding: 6px 0;
    transition: color 0.15s;
}
.footer-col a:hover { color: var(--ac); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--bd);
    font-size: 12.5px;
    color: var(--tx-4);
    flex-wrap: wrap;
    gap: 16px;
}
.footer-brand-sub {
    color: var(--tx-3);
    font-size: 13px;
    line-height: 1.7;
    margin-top: 16px;
    max-width: 340px;
}

/* ═══════════════════════════════════════════════════════════════
   FAZ 1 (2026-05-06): LIGHT THEME OVERRIDE
   data-theme="light" olduğunda renk tokenları yeniden tanımlanır.
   Tüm CSS var(--xxx) kullandığı için tek seferde tüm site adapte olur.
   ═══════════════════════════════════════════════════════════════ */

[data-theme="light"] {
    /* Background — yumuşak beyaz, mavi tonlu */
    --bg:       #f7f9fc;
    --bg-2:     #ffffff;
    --bg-3:     #eef2f7;
    --bg-4:     #e3e9f0;
    --surface:  #ffffff;

    /* Borders */
    --bd:       #d9dfe8;
    --bd-2:     #c5cdd9;
    --bd-3:     #a8b4c5;

    /* Text — koyu mavi tonlu */
    --tx:       #0f172a;
    --tx-2:     #475569;
    --tx-3:     #64748b;
    --tx-4:     #94a3b8;

    /* Accent — biraz daha doygun yeşil */
    --ac:       #00a878;
    --ac-2:     #008860;
    --ac-soft:  rgba(0, 168, 120, 0.1);
    --ac-glow:  rgba(0, 168, 120, 0.25);

    /* Cool blue */
    --bl:       #2563eb;
    --bl-soft:  rgba(37, 99, 235, 0.1);

    /* Warm */
    --wr:       #ea580c;
    --wr-soft:  rgba(234, 88, 12, 0.12);

    --yl:       #eab308;
    --yl-soft:  rgba(234, 179, 8, 0.15);

    /* Severity */
    --sev-crit: #dc2626;
    --sev-high: #ea580c;
    --sev-med:  #d97706;
    --sev-low:  #2563eb;

    /* Shadows — daha hafif */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow:    0 4px 12px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.12);
    --shadow-glow: 0 0 40px rgba(0, 168, 120, 0.15);
}

/* Light theme'de bazı dark-spesifik override'lar */
[data-theme="light"] body {
    background-image: none;
}

[data-theme="light"] ::-webkit-scrollbar-track {
    background: var(--bg-3);
}

/* Dark theme'de grid pattern varsa light'ta gizle */
[data-theme="light"] .bg-grid,
[data-theme="light"] .bg-dots {
    opacity: 0.3;
}

/* Theme toggle butonu görünümü */
.theme-toggle {
    width: 38px;
    height: 38px;
    border: 1px solid var(--bd);
    background: var(--bg-2);
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--tx-2);
    flex-shrink: 0;
}
.theme-toggle:hover {
    color: var(--ac);
    border-color: var(--ac);
    background: var(--ac-soft);
}
.theme-toggle svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* Smooth theme transition */
body, .nav, .card, .btn, button, a, input, textarea, select {
    transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

/* Light theme'de nav arka planı */
[data-theme="light"] .nav,
[data-theme="light"] header.nav {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom-color: var(--bd);
}

/* Hero gradient'leri light'a uyarlama */
[data-theme="light"] .hero {
    background-image: radial-gradient(ellipse at top, rgba(0, 168, 120, 0.08) 0%, transparent 60%),
                      linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.02) 100%);
}

/* Code block / pre — light'ta okunabilir */
[data-theme="light"] pre,
[data-theme="light"] code {
    background: #1e293b;
    color: #e2e8f0;
    border: 1px solid #334155;
}