/* =================================================================
   هوشی — سیستم طراحی «شیشه‌ی مایع» (Liquid Glass)
   RTL · فارسی · حالت روشن پیش‌فرض + تیره
   ================================================================= */

/* ---------- توکن‌ها ---------- */
:root {
  /* برند */
  --blue:        #2635d9;
  --blue-600:    #1f2bb8;
  --orange:      #fa8100;
  --orange-600:  #e36f00;
  --violet:      #7c3aed;
  --violet-400:  #8b5cf6;
  --pink:        #ec4899;
  --cyan:        #06b6d4;
  --green:       #10b981;
  --red:         #ef4444;
  --amber:       #f59e0b;

  /* گرادیان‌های امضا */
  --grad-brand:   linear-gradient(135deg, var(--blue) 0%, var(--violet) 55%, var(--pink) 100%);
  --grad-warm:    linear-gradient(135deg, var(--orange) 0%, var(--pink) 100%);
  --grad-cool:    linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
  --grad-aurora1: radial-gradient(60% 60% at 50% 50%, rgba(124,58,237,.55), transparent 70%);
  --grad-aurora2: radial-gradient(60% 60% at 50% 50%, rgba(38,53,217,.5), transparent 70%);
  --grad-aurora3: radial-gradient(60% 60% at 50% 50%, rgba(250,129,0,.4), transparent 70%);

  /* سطوح روشن */
  --bg:          #eef1fb;
  --bg-solid:    #f6f7fe;
  --ink:         #0f1535;
  --ink-soft:    #4a527e;
  --ink-faint:   #818bb4;
  --line:        rgba(20, 30, 80, .10);
  --line-strong: rgba(20, 30, 80, .16);

  /* شیشه */
  --glass:       rgba(255, 255, 255, .55);
  --glass-2:     rgba(255, 255, 255, .38);
  --glass-hi:    rgba(255, 255, 255, .85);
  --glass-brd:   rgba(255, 255, 255, .7);
  --glass-shadow: 0 10px 40px -12px rgba(31, 38, 135, .28);
  --glass-blur:  blur(22px) saturate(160%);

  /* شعاع و فاصله */
  --r-sm: 12px;  --r: 18px;  --r-lg: 26px;  --r-xl: 34px;  --r-pill: 999px;
  --font: 'Vazirmatn', 'Tahoma', system-ui, -apple-system, sans-serif;

  --ring: 0 0 0 4px rgba(124, 58, 237, .18);
  --t: .28s cubic-bezier(.22, 1, .36, 1);
}

[data-theme="dark"] {
  --bg:          #070b20;
  --bg-solid:    #0a0e27;
  --ink:         #eef1ff;
  --ink-soft:    #aab2e0;
  --ink-faint:   #6f78ab;
  --line:        rgba(255, 255, 255, .09);
  --line-strong: rgba(255, 255, 255, .16);

  --glass:       rgba(255, 255, 255, .06);
  --glass-2:     rgba(255, 255, 255, .04);
  --glass-hi:    rgba(255, 255, 255, .10);
  --glass-brd:   rgba(255, 255, 255, .12);
  --glass-shadow: 0 18px 50px -16px rgba(0, 0, 0, .65);
  --glass-blur:  blur(24px) saturate(150%);
  --ring: 0 0 0 4px rgba(139, 92, 246, .28);
}

/* ---------- پایه ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { max-width: 100%; display: block; }
::selection { background: rgba(124, 58, 237, .25); }

/* اسکرول‌بار */
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--line-strong); border-radius: 999px;
  border: 3px solid transparent; background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--ink-faint); background-clip: padding-box; }

/* ---------- پس‌زمینه‌ی شفق (Aurora) ---------- */
.aurora { position: fixed; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
.aurora::before {
  content: ""; position: absolute; inset: -20%;
  background:
    radial-gradient(40% 50% at 12% 18%, rgba(124,58,237,.40), transparent 60%),
    radial-gradient(45% 55% at 88% 22%, rgba(38,53,217,.38), transparent 62%),
    radial-gradient(50% 50% at 75% 90%, rgba(250,129,0,.28), transparent 60%),
    radial-gradient(45% 50% at 20% 92%, rgba(236,72,153,.24), transparent 60%);
  filter: blur(20px);
  animation: drift 26s ease-in-out infinite alternate;
}
.aurora .orb {
  position: absolute; border-radius: 50%; filter: blur(60px); opacity: .7;
  animation: float 20s ease-in-out infinite;
}
.aurora .orb.o1 { width: 480px; height: 480px; top: -120px; right: -80px;  background: var(--grad-aurora1); }
.aurora .orb.o2 { width: 420px; height: 420px; bottom: -140px; left: -60px; background: var(--grad-aurora2); animation-delay: -6s; }
.aurora .orb.o3 { width: 360px; height: 360px; top: 40%; left: 55%;        background: var(--grad-aurora3); animation-delay: -12s; }
[data-theme="dark"] .aurora::before { opacity: .55; }
.aurora .grain {
  position: absolute; inset: 0; opacity: .035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
@keyframes drift { 0% { transform: translate(0,0) rotate(0); } 100% { transform: translate(-3%,-2%) rotate(6deg); } }
@keyframes float { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(20px,-30px) scale(1.08); } }
@media (prefers-reduced-motion: reduce) { .aurora *, .aurora::before { animation: none !important; } }

/* ---------- شیشه ---------- */
.glass {
  background: var(--glass);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-brd);
  border-radius: var(--r-lg);
  box-shadow: var(--glass-shadow);
}
.glass-2 { background: var(--glass-2); }
.glass-hi { background: var(--glass-hi); }

/* لبه‌ی نورانی بالای کارت‌ها */
.glass.sheen { position: relative; overflow: hidden; }
.glass.sheen::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.9), transparent);
  opacity: .6;
}

/* ---------- تایپوگرافی ---------- */
.h-display { font-size: clamp(34px, 6vw, 68px); font-weight: 800; line-height: 1.1; letter-spacing: -.02em; }
.h1 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; letter-spacing: -.01em; margin: 0; }
.h2 { font-size: clamp(20px, 3vw, 28px); font-weight: 700; margin: 0; }
.h3 { font-size: 18px; font-weight: 700; margin: 0; }
.lead { font-size: clamp(16px, 2.2vw, 20px); color: var(--ink-soft); }
.muted { color: var(--ink-soft); }
.faint { color: var(--ink-faint); }
.tiny { font-size: 12.5px; }
.gradient-text {
  background: var(--grad-brand); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.num { font-variant-numeric: tabular-nums; font-feature-settings: "ss01"; }

/* ---------- دکمه‌ها ---------- */
.btn {
  --bg: var(--grad-brand);
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 26px; border: 0; border-radius: var(--r-pill);
  background: var(--bg); color: #fff; font-size: 15px; font-weight: 700;
  position: relative; isolation: isolate; transition: transform var(--t), box-shadow var(--t), filter var(--t);
  box-shadow: 0 8px 24px -8px rgba(124, 58, 237, .55);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 14px 32px -8px rgba(124, 58, 237, .65); filter: saturate(1.1); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: none; box-shadow: var(--ring), 0 8px 24px -8px rgba(124,58,237,.5); }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; filter: grayscale(.3); }
.btn.warm  { --bg: var(--grad-warm);  box-shadow: 0 8px 24px -8px rgba(250,129,0,.5); }
.btn.ghost {
  --bg: var(--glass); color: var(--ink); border: 1px solid var(--glass-brd);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); box-shadow: none;
}
.btn.ghost:hover { background: var(--glass-hi); box-shadow: 0 8px 22px -10px rgba(0,0,0,.2); }
.btn.sm { padding: 9px 16px; font-size: 13px; }
.btn.lg { padding: 16px 34px; font-size: 16.5px; }
.btn.block { width: 100%; }
.btn .spin { width: 16px; height: 16px; border: 2px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.icon-btn {
  width: 42px; height: 42px; display: inline-grid; place-items: center; border-radius: var(--r-pill);
  background: var(--glass); border: 1px solid var(--glass-brd); color: var(--ink);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); transition: var(--t);
}
.icon-btn:hover { background: var(--glass-hi); transform: translateY(-2px); }

/* ---------- چیپ / برچسب ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: var(--r-pill);
  background: var(--glass); border: 1px solid var(--glass-brd); font-size: 13px; font-weight: 600; color: var(--ink-soft);
  -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
}
.chip.brand { background: rgba(124,58,237,.12); border-color: rgba(124,58,237,.3); color: var(--violet); }
.chip.warm  { background: rgba(250,129,0,.12); border-color: rgba(250,129,0,.3); color: var(--orange-600); }
.chip.dot::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

.badge { font-size: 11.5px; font-weight: 700; padding: 3px 9px; border-radius: var(--r-pill); }
.badge.green { background: rgba(16,185,129,.14); color: var(--green); }
.badge.red   { background: rgba(239,68,68,.14);  color: var(--red); }
.badge.amber { background: rgba(245,158,11,.16); color: var(--amber); }
.badge.blue  { background: rgba(38,53,217,.12);  color: var(--blue); }
.badge.violet{ background: rgba(124,58,237,.14); color: var(--violet); }
.badge.gray  { background: var(--glass-2); color: var(--ink-soft); border: 1px solid var(--line); }

/* ---------- فرم ---------- */
.field { display: block; margin-bottom: 16px; }
.field > label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 7px; color: var(--ink); }
.field .hint { font-size: 12px; color: var(--ink-faint); margin: 4px 2px 0; }
.input, .textarea, .select {
  width: 100%; padding: 12px 15px; font-family: inherit; font-size: 14.5px; color: var(--ink);
  background: var(--glass-2); border: 1px solid var(--glass-brd); border-radius: var(--r);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); transition: var(--t); outline: none;
}
.textarea { min-height: 110px; resize: vertical; line-height: 1.8; }
.input::placeholder, .textarea::placeholder { color: var(--ink-faint); }
.input:focus, .textarea:focus, .select:focus { border-color: var(--violet-400); box-shadow: var(--ring); background: var(--glass-hi); }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%23818bb4' stroke-width='2'%3E%3Cpath d='M3 5l4 4 4-4'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: left 15px center; padding-left: 40px; }

/* چندانتخابی به‌صورت تگ‌های قابل‌کلیک */
.multiselect { display: flex; flex-wrap: wrap; gap: 8px; }
.multiselect .opt {
  padding: 8px 15px; border-radius: var(--r-pill); border: 1px solid var(--glass-brd);
  background: var(--glass-2); font-size: 13px; font-weight: 600; color: var(--ink-soft); transition: var(--t); user-select: none;
}
.multiselect .opt:hover { background: var(--glass-hi); }
.multiselect .opt.on { background: var(--grad-brand); color: #fff; border-color: transparent; box-shadow: 0 6px 16px -8px rgba(124,58,237,.6); }

/* ---------- شبکه و چیدمان ---------- */
.container { width: min(1180px, 92vw); margin-inline: auto; }
.container-sm { width: min(720px, 92vw); margin-inline: auto; }
.grid { display: grid; gap: 22px; }
.section { padding: clamp(56px, 9vw, 110px) 0; }
.center { text-align: center; }
.stack { display: flex; flex-direction: column; }
.row-flex { display: flex; align-items: center; gap: 12px; }
.between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.wrap { flex-wrap: wrap; }
.spacer { flex: 1; }

/* ---------- آیکن‌گرد گرادیانی ---------- */
.icon-orb {
  width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center;
  background: var(--grad-brand); color: #fff; box-shadow: 0 10px 26px -10px rgba(124,58,237,.6); flex-shrink: 0;
}
.icon-orb svg { width: 26px; height: 26px; }
.icon-orb.warm { background: var(--grad-warm); box-shadow: 0 10px 26px -10px rgba(250,129,0,.55); }
.icon-orb.cool { background: var(--grad-cool); }
.icon-orb.sm { width: 40px; height: 40px; border-radius: 12px; }
.icon-orb.sm svg { width: 20px; height: 20px; }

/* ---------- اسپینر / لودینگ ---------- */
.dots { display: inline-flex; gap: 5px; align-items: center; }
.dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--violet-400); animation: bounce 1.2s ease-in-out infinite; }
.dots i:nth-child(2) { animation-delay: .15s; background: var(--blue); }
.dots i:nth-child(3) { animation-delay: .3s; background: var(--orange); }
@keyframes bounce { 0%,80%,100% { transform: scale(.5); opacity: .4; } 40% { transform: scale(1); opacity: 1; } }

.skeleton { background: linear-gradient(90deg, var(--glass-2) 25%, var(--glass-hi) 50%, var(--glass-2) 75%); background-size: 200% 100%; animation: shimmer 1.4s infinite; border-radius: var(--r-sm); }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- توست ---------- */
#toast-wrap { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 9999; display: flex; flex-direction: column; gap: 10px; align-items: center; }
.toast {
  padding: 13px 22px; border-radius: var(--r-pill); font-size: 14px; font-weight: 600; color: #fff;
  background: rgba(15,21,53,.92); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  box-shadow: 0 12px 30px -10px rgba(0,0,0,.5); animation: toastin .35s cubic-bezier(.22,1,.36,1);
}
.toast.ok  { background: linear-gradient(135deg, #059669, #10b981); }
.toast.err { background: linear-gradient(135deg, #dc2626, #ef4444); }
@keyframes toastin { from { transform: translateY(14px); opacity: 0; } }

/* ---------- کارت با کج‌شدن سه‌بعدی ---------- */
.tilt { transition: transform var(--t), box-shadow var(--t); transform-style: preserve-3d; will-change: transform; }
.tilt:hover { box-shadow: 0 24px 60px -20px rgba(31,38,135,.4); }

/* ---------- ابزار کمکی ---------- */
.hidden { display: none !important; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 36px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.gap-1 { gap: 8px; } .gap-2 { gap: 16px; } .gap-3 { gap: 24px; }
.fade-up { animation: fadeUp .6s cubic-bezier(.22,1,.36,1) both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } }
[data-reveal] { opacity: 0; transform: translateY(24px); }
[data-reveal].in { opacity: 1; transform: none; transition: opacity .7s, transform .7s cubic-bezier(.22,1,.36,1); }