/* ============================================================
   SqlSync — هوية الموقع
   ------------------------------------------------------------
   أداة بنية تحتية تربط برامج محاسبة عربية قديمة (الأمين/البيان)
   بمنظومة حديثة (Laravel + Filament + React Native). الهوية هون
   مبنية على فكرة "خط الأنابيب الحي": بيانات تتدفق بثبات من نقطة
   لنقطة، بدون أي تنجيم لوني عام — ألوان تقنية واثقة، عتمة دافئة،
   ولون توقيعي واحد (سماوي كهربائي) يمثل "المزامنة الحية".
   ============================================================ */

:root {
    --font-display: "Tajawal", system-ui, sans-serif;
    --font: "IBM Plex Sans Arabic", system-ui, -apple-system, sans-serif;
    --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;

    --bg: #0A0E13;
    --bg-raised: #10151C;
    --surface: #141A22;
    --surface-2: #1B222C;
    --line: rgba(255, 255, 255, .08);
    --line-strong: rgba(255, 255, 255, .16);

    --ink: #EDF1F5;
    --ink-soft: #9AA7B4;
    --ink-faint: #5C6875;

    --sync: #35E0C8;
    --sync-soft: rgba(53, 224, 200, .12);
    --sync-ink: #06201C;

    --amber: #F0A94E;
    --amber-soft: rgba(240, 169, 78, .12);

    --violet: #8B7CF6;
    --violet-soft: rgba(139, 124, 246, .12);

    --danger: #F0654E;

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --ease: cubic-bezier(.22, .7, .18, 1);
    --shell: 1180px;
    --header-h: 72px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    background-image:
        radial-gradient(1200px 600px at 85% -10%, rgba(53, 224, 200, .08), transparent 60%),
        radial-gradient(900px 500px at 10% 10%, rgba(139, 124, 246, .06), transparent 55%);
    color: var(--ink);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, .brand-word { font-family: var(--font-display); font-weight: 700; }
code, .mono, .pill-code { font-family: var(--font-mono); }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--sync); color: var(--sync-ink); }

.shell { width: min(var(--shell), calc(100% - 40px)); margin-inline: auto; }
.section { padding: 96px 0; }
.section-tight { padding: 56px 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px; padding: 6px 12px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--surface); color: var(--sync); font-family: var(--font-mono); font-size: .72rem; }
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--sync); box-shadow: 0 0 0 4px var(--sync-soft); animation: blink 1.8s ease-in-out infinite; }
@keyframes blink { 50% { opacity: .35; } }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 50; min-height: var(--header-h); display: flex; align-items: center; background: rgba(10, 14, 19, .78); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.header-inner { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; }
.brand-mark { position: relative; width: 34px; height: 34px; border-radius: 10px; background: linear-gradient(155deg, var(--sync), #1CA893); display: grid; place-items: center; }
.brand-mark span { position: absolute; width: 14px; height: 14px; border: 2px solid var(--sync-ink); border-radius: 4px; }
.brand-mark span:first-child { transform: translate(-4px, -4px); }
.brand-mark span:last-child { transform: translate(3px, 3px); background: var(--sync-ink); }
.nav-links { display: flex; align-items: center; gap: 28px; color: var(--ink-soft); font-size: .86rem; }
.nav-links a:hover { color: var(--ink); }
.header-cta { display: flex; align-items: center; gap: 10px; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 20px; border: 1px solid transparent; border-radius: var(--radius-sm); font-weight: 700; font-size: .85rem; cursor: pointer; transition: transform .18s var(--ease), box-shadow .18s ease, background .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--sync); color: var(--sync-ink); box-shadow: 0 14px 30px rgba(53, 224, 200, .22); }
.button-primary:hover { background: #48E9D2; }
.button-ghost { border-color: var(--line-strong); color: var(--ink); background: transparent; }
.button-ghost:hover { background: var(--surface); border-color: var(--ink-faint); }
.button-sm { min-height: 38px; padding: 0 14px; font-size: .78rem; }

/* ===== Hero ===== */
.hero { position: relative; padding: 100px 0 80px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.hero h1 { max-width: 620px; margin: 0; font-size: clamp(2.4rem, 4vw, 3.4rem); line-height: 1.28; letter-spacing: -.01em; }
.hero h1 .accent { color: var(--sync); }
.hero p { max-width: 560px; margin: 22px 0 0; color: var(--ink-soft); font-size: 1.02rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 34px; }
.hero-meta-item { display: flex; align-items: center; gap: 8px; color: var(--ink-faint); font-size: .78rem; }
.hero-meta-item strong { color: var(--ink); font-family: var(--font-mono); }

/* ===== خط الأنابيب الحي (التوقيع البصري) ===== */
.pipeline { position: relative; padding: 34px 10px 90px; border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--line-strong); box-shadow: 0 30px 70px rgba(0,0,0,.4); }
.pipeline-row { position: relative; display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.pipeline-node { position: relative; z-index: 2; width: 92px; display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.pipeline-node-icon { width: 56px; height: 56px; border-radius: var(--radius-md); display: grid; place-items: center; background: var(--bg-raised); border: 1px solid var(--line-strong); }
.pipeline-node:nth-child(1) .pipeline-node-icon { border-color: var(--violet); color: var(--violet); }
.pipeline-node:nth-child(2) .pipeline-node-icon { border-color: var(--amber); color: var(--amber); }
.pipeline-node:nth-child(3) .pipeline-node-icon { border-color: var(--sync); color: var(--sync); }
.pipeline-node:nth-child(4) .pipeline-node-icon { border-color: #F0654E; color: #F0654E; }
.pipeline-node small { color: var(--ink-faint); font-family: var(--font-mono); font-size: .6rem; }
.pipeline-node strong { font-size: .76rem; }
.pipeline-svg { position: absolute; top: 27px; left: 0; width: 100%; height: 12px; overflow: visible; }
.pipeline-path { fill: none; stroke: var(--line-strong); stroke-width: 2; stroke-dasharray: 4 6; }
.pipeline-dot { fill: var(--sync); filter: drop-shadow(0 0 6px var(--sync)); }
.pipeline-base { margin-top: 40px; padding: 16px 18px; border-radius: var(--radius-md); background: var(--bg-raised); border: 1px solid var(--line); }
.pipeline-base-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: .74rem; }
.pipeline-base-row + .pipeline-base-row { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--line); }
.pipeline-base-row span:first-child { color: var(--ink-faint); }
.pipeline-base-row b { font-family: var(--font-mono); color: var(--sync); }

/* ===== منطق أو شركاء ===== */
.logo-strip { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px; padding: 22px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.logo-chip { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-faint); font-family: var(--font-mono); font-size: .74rem; }

/* ===== أقسام عامة ===== */
.section-head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.section-head h2 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.5rem); line-height: 1.35; }
.section-head p { margin: 16px 0 0; color: var(--ink-soft); }

.stack-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stack-card { position: relative; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); transition: transform .24s var(--ease), border-color .24s ease, box-shadow .24s ease; }
.stack-card:hover { transform: translateY(-6px); border-color: var(--line-strong); box-shadow: 0 24px 50px rgba(0,0,0,.35); }
.stack-card-icon { width: 46px; height: 46px; border-radius: var(--radius-sm); display: grid; place-items: center; margin-bottom: 20px; }
.stack-card:nth-child(1) .stack-card-icon { background: var(--sync-soft); color: var(--sync); }
.stack-card:nth-child(2) .stack-card-icon { background: var(--amber-soft); color: var(--amber); }
.stack-card:nth-child(3) .stack-card-icon { background: var(--violet-soft); color: var(--violet); }
.stack-card:nth-child(4) .stack-card-icon { background: rgba(240,101,78,.12); color: var(--danger); }
.stack-card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.stack-card p { margin: 0; color: var(--ink-soft); font-size: .82rem; }
.stack-card .pill-code { display: inline-block; margin-top: 16px; padding: 4px 10px; border-radius: 999px; background: var(--bg-raised); color: var(--ink-faint); font-size: .68rem; }

.steps { counter-reset: step; display: grid; gap: 4px; }
.step { position: relative; display: grid; grid-template-columns: 56px 1fr; gap: 20px; padding: 26px 0; }
.step + .step { border-top: 1px solid var(--line); }
.step-num { counter-increment: step; width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--line-strong); font-family: var(--font-mono); color: var(--sync); }
.step-num::before { content: counter(step, decimal-leading-zero); }
.step h3 { margin: 0 0 6px; font-size: 1.05rem; }
.step p { margin: 0; max-width: 640px; color: var(--ink-soft); font-size: .86rem; }
.step-code { margin-top: 14px; padding: 14px 16px; border-radius: var(--radius-sm); background: var(--bg-raised); border: 1px solid var(--line); overflow-x: auto; }
.step-code pre { margin: 0; color: var(--sync); font-family: var(--font-mono); font-size: .78rem; direction: ltr; text-align: left; }

.feature-split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.feature-split.reverse .feature-copy { order: 2; }
.feature-copy .eyebrow { margin-bottom: 14px; }
.feature-copy h2 { margin: 0; font-size: clamp(1.6rem, 2.6vw, 2.1rem); line-height: 1.4; }
.feature-copy p { margin: 16px 0 0; color: var(--ink-soft); }
.feature-list { display: grid; gap: 10px; margin-top: 22px; padding: 0; list-style: none; }
.feature-list li { display: flex; align-items: flex-start; gap: 10px; color: var(--ink-soft); font-size: .86rem; }
.feature-list li svg { flex: 0 0 auto; margin-top: 3px; color: var(--sync); }
.feature-visual { padding: 26px; border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--line); box-shadow: 0 30px 60px rgba(0,0,0,.35); }
.feature-visual pre { margin: 0; color: var(--ink); font-family: var(--font-mono); font-size: .78rem; line-height: 1.9; direction: ltr; text-align: left; overflow-x: auto; }
.feature-visual .tok-key { color: var(--violet); }
.feature-visual .tok-str { color: var(--sync); }
.feature-visual .tok-com { color: var(--ink-faint); }

.cta-band { position: relative; padding: 80px 0; text-align: center; border-top: 1px solid var(--line); }
.cta-band h2 { max-width: 620px; margin: 0 auto; font-size: clamp(1.8rem, 3vw, 2.4rem); }
.cta-band p { max-width: 520px; margin: 16px auto 0; color: var(--ink-soft); }
.cta-actions { display: flex; justify-content: center; gap: 12px; margin-top: 30px; }

.site-footer { padding: 56px 0 28px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, .8fr); gap: 40px; }
.footer-col h4 { margin: 0 0 14px; font-size: .78rem; color: var(--ink-faint); font-weight: 700; letter-spacing: .03em; }
.footer-col a { display: block; margin: 9px 0; color: var(--ink-soft); font-size: .8rem; }
.footer-col a:hover { color: var(--ink); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 44px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--ink-faint); font-size: .72rem; }

[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ===== Docs layout ===== */
.docs-shell { display: grid; grid-template-columns: 260px minmax(0,1fr) 220px; gap: 40px; padding: 48px 0 100px; }
.docs-nav { position: sticky; top: calc(var(--header-h) + 24px); align-self: start; }
.docs-nav-group { margin-bottom: 26px; }
.docs-nav-group h4 { margin: 0 0 10px; color: var(--ink-faint); font-size: .68rem; text-transform: uppercase; letter-spacing: .06em; }
.docs-nav a { display: block; padding: 7px 0; color: var(--ink-soft); font-size: .84rem; border-right: 2px solid transparent; padding-right: 12px; }
.docs-nav a:hover { color: var(--ink); }
.docs-nav a.is-active { color: var(--sync); border-color: var(--sync); font-weight: 600; }
.docs-content h1 { margin: 0 0 10px; font-size: clamp(1.8rem, 2.6vw, 2.3rem); }
.docs-lead { color: var(--ink-soft); font-size: 1rem; margin: 0 0 40px; }
.docs-content h2 { margin: 44px 0 16px; font-size: 1.4rem; padding-top: 8px; border-top: 1px solid var(--line); }
.docs-content h2:first-of-type { border-top: 0; margin-top: 0; }
.docs-content p { color: var(--ink-soft); }
.docs-content pre { margin: 16px 0; padding: 16px 18px; border-radius: var(--radius-sm); background: var(--bg-raised); border: 1px solid var(--line); overflow-x: auto; }
.docs-content code { font-size: .82rem; }
.docs-content pre code { color: var(--sync); direction: ltr; display: block; text-align: left; }
.docs-content p code, .docs-content li code { padding: 2px 6px; border-radius: 5px; background: var(--surface-2); color: var(--sync); font-size: .84rem; }
.docs-content ul { color: var(--ink-soft); }
.docs-callout { display: flex; gap: 12px; margin: 22px 0; padding: 16px; border-radius: var(--radius-sm); background: var(--amber-soft); border: 1px solid rgba(240,169,78,.3); color: #F3C888; font-size: .82rem; }
.docs-toc { position: sticky; top: calc(var(--header-h) + 24px); align-self: start; font-size: .78rem; }
.docs-toc h4 { margin: 0 0 12px; color: var(--ink-faint); text-transform: uppercase; font-size: .66rem; letter-spacing: .06em; }
.docs-toc a { display: block; margin: 7px 0; color: var(--ink-soft); }
.docs-toc a:hover { color: var(--sync); }

@media (max-width: 1080px) {
    .hero-grid { grid-template-columns: 1fr; }
    .pipeline-row { flex-direction: column; align-items: stretch; gap: 20px; }
    .pipeline-node { width: 100%; flex-direction: row; text-align: right; gap: 14px; }
    .pipeline-svg { display: none; }
    .stack-grid { grid-template-columns: 1fr 1fr; }
    .feature-split, .feature-split.reverse .feature-copy { grid-template-columns: 1fr; order: 0; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .docs-shell { grid-template-columns: 220px 1fr; }
    .docs-toc { display: none; }
}
@media (max-width: 720px) {
    .nav-links { display: none; }
    .stack-grid { grid-template-columns: 1fr; }
    .docs-shell { grid-template-columns: 1fr; }
    .docs-nav { position: static; }
}
@media (prefers-reduced-motion: reduce) {
    * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}