/* ════════════════════════════════════════════════════════════
   MECHANIZ — global design system v2
   Dark aerospace / engineering UI with cyan + violet accents
   ════════════════════════════════════════════════════════════ */
@font-face {
    font-family: "Vazirmatn";
    src: url("/static/fonts/Vazirmatn[wght].woff2") format("woff2 supports variations"),
         url("/static/fonts/Vazirmatn[wght].woff2") format("woff2-variations");
    font-weight: 100 900;
    font-display: swap;
}

:root {
    --bg-0: #050914;
    --bg-1: #0a1020;
    --bg-2: #10192b;
    --bg-3: #152238;
    --line: #22324d;
    --line-soft: rgba(104, 126, 158, .18);
    --text-1: #f4f8ff;
    --text-2: #9cafc8;
    --text-3: #647792;

    --accent: #22d3ee;
    --accent-strong: #06b6d4;
    --accent-rgb: 34, 211, 238;
    --accent-2: #8b5cf6;
    --accent-2-rgb: 139, 92, 246;

    --danger: #fb7185;
    --warn: #fbbf24;
    --ok: #34d399;
    --info: #60a5fa;

    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 18px;

    --font: "Vazirmatn", Tahoma, sans-serif;
    --mono: "JetBrains Mono", "IBM Plex Mono", "Consolas", monospace;

    --shadow-sm: 0 8px 25px rgba(0, 0, 0, .18);
    --shadow: 0 18px 55px rgba(0, 0, 0, .30);
    --shadow-accent: 0 16px 45px rgba(var(--accent-rgb), .12);

    --glass: rgba(9, 16, 31, .76);
    --glass-strong: rgba(11, 20, 39, .92);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    color: var(--text-1);
    font-family: var(--font);
    line-height: 1.9;
    background:
        radial-gradient(circle at 85% -10%, rgba(var(--accent-2-rgb), .10), transparent 32%),
        radial-gradient(circle at 10% 0%, rgba(var(--accent-rgb), .08), transparent 26%),
        linear-gradient(180deg, #040711 0%, var(--bg-0) 45%, #060b16 100%);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(91, 115, 148, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(91, 115, 148, .035) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: radial-gradient(ellipse at 50% 0%, black 24%, transparent 78%);
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(circle at center, transparent 35%, rgba(0,0,0,.18) 100%);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color .18s ease, opacity .18s ease, transform .18s ease;
}

a:hover { color: #a5f3fc; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

input, select, textarea {
    width: 100%;
    color: var(--text-1);
    background: rgba(8, 15, 29, .92);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: .68rem .84rem;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.02);
    transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

input:hover, select:hover, textarea:hover { border-color: #314866; }
input:focus, select:focus, textarea:focus {
    border-color: var(--accent);
    background: rgba(8, 18, 34, .98);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .10);
    outline: none;
}

input:focus-visible, select:focus-visible, textarea:focus-visible,
a:focus-visible, button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

::selection { background: rgba(var(--accent-rgb), .24); color: white; }

.container {
    max-width: 1280px;
    margin-inline: auto;
    padding-inline: 1.35rem;
}

.ltr, .en {
    direction: ltr;
    unicode-bidi: isolate;
    display: inline-block;
    font-family: var(--mono);
    letter-spacing: .02em;
}

.skip-link {
    position: absolute;
    inset-inline-start: -999px;
    top: .5rem;
    z-index: 500;
}

.skip-link:focus {
    inset-inline-start: .75rem;
    color: #021017;
    background: var(--accent);
    padding: .5rem .9rem;
    border-radius: var(--radius-sm);
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
}

/* ── buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .48rem;
    min-height: 38px;
    padding: .54rem 1rem;
    border: 1px solid #2a3b58;
    border-radius: 10px;
    color: var(--text-1);
    background: linear-gradient(180deg, rgba(20,33,55,.92), rgba(10,20,36,.92));
    font-weight: 700;
    font-size: .88rem;
    box-shadow: 0 4px 14px rgba(0,0,0,.14);
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}

.btn:hover {
    transform: translateY(-1px);
    border-color: rgba(var(--accent-rgb), .75);
    color: #cffafe;
    box-shadow: var(--shadow-accent);
}

.btn-primary {
    color: #031118;
    background: linear-gradient(135deg, #67e8f9 0%, var(--accent) 55%, #06b6d4 100%);
    border-color: transparent;
    box-shadow: 0 10px 26px rgba(var(--accent-rgb), .19);
}

.btn-primary:hover {
    color: #021017;
    background: linear-gradient(135deg, #a5f3fc 0%, #22d3ee 60%, #0891b2 100%);
    border-color: transparent;
    box-shadow: 0 14px 32px rgba(var(--accent-rgb), .26);
}

.btn-danger { color: var(--danger); border-color: rgba(251,113,133,.28); }
.btn-danger:hover { background: rgba(251,113,133,.08); border-color: rgba(251,113,133,.6); color: #fecdd3; }
.btn-sm { min-height: 34px; padding: .4rem .72rem; font-size: .78rem; border-radius: 9px; }

/* ── badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: .34rem;
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .01em;
    padding: .22rem .62rem;
    border-radius: 999px;
    border: 1px solid #2a3b58;
    color: var(--text-2);
    background: rgba(12, 21, 37, .64);
}

.badge-cyan { color: #67e8f9; border-color: rgba(var(--accent-rgb), .32); background: rgba(var(--accent-rgb), .08); }
.badge-green { color: #6ee7b7; border-color: rgba(52,211,153,.32); background: rgba(52,211,153,.08); }
.badge-red { color: #fda4af; border-color: rgba(251,113,133,.32); background: rgba(251,113,133,.08); }
.badge-amber { color: #fde68a; border-color: rgba(251,191,36,.32); background: rgba(251,191,36,.08); }

/* ── cards / panels ── */
.card {
    position: relative;
    background: linear-gradient(180deg, rgba(16,27,46,.86), rgba(8,16,30,.94));
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,.10);
    transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.10), transparent);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(var(--accent-rgb), .28);
    box-shadow: 0 18px 45px rgba(0,0,0,.22), 0 0 0 1px rgba(var(--accent-rgb),.04);
}

.section-title {
    display: flex;
    align-items: center;
    gap: .8rem;
    margin: 0 0 1.3rem;
    font-size: 1.32rem;
    font-weight: 850;
    letter-spacing: -.01em;
}

.section-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: linear-gradient(to left, rgba(var(--accent-rgb),.42), transparent);
}
.section-title .num { color: var(--accent); font-family: var(--mono); font-size: .8rem; }

.grid { display: grid; gap: 1.15rem; }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

/* ── typography helpers ── */
.muted { color: var(--text-2); }
.text-dim { color: var(--text-3); }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
}

.form-row { margin-bottom: 1rem; }
.form-row label { display: block; font-size: .84rem; color: var(--text-2); margin-bottom: .34rem; font-weight: 650; }
.form-error { color: var(--danger); font-size: .84rem; margin-top: .45rem; }

.flash {
    position: fixed;
    inset-inline-start: 50%;
    top: 1rem;
    transform: translateX(-50%);
    z-index: 300;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--glass-strong);
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
}

/* ── consistent scrollbars ── */
* {
    scrollbar-width: thin;
    scrollbar-color: #2e4565 transparent;
}

*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: #29415f; border-radius: 999px; }
*::-webkit-scrollbar-thumb:hover { background: #3b5a80; }