/* ═══ IR-Toolbox — base, ambient, shell (Design System v2 / v1.3.5) ═══ */

@font-face {
  font-family: 'Vazirmatn';
  src: url('../assets/fonts/Vazirmatn-var.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-display: swap;
}

/* ─── Base ─── */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
/* overflow-x:hidden روی html+body باعث خراب‌شدن position:sticky می‌شود؛ clip اسکرول‌کانتینر نمی‌سازد */
html, body { overflow-x: hidden; overflow-x: clip; }
body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15.5px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  transition: background .35s var(--ease), color .35s var(--ease);
}
::selection { background: color-mix(in srgb, var(--primary) 35%, transparent); }
a { color: var(--primary); text-decoration: none; }
button { font-family: inherit; color: inherit; }
button, a, [role="button"], input, select, textarea, label { touch-action: manipulation; }
input, textarea, select { font-family: inherit; }
code, .mono, pre, textarea.code { font-family: var(--mono); }
[dir] { direction: rtl; }
h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.3; font-weight: 800; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 6px; }

/* Scrollbars */
* { scrollbar-width: thin; scrollbar-color: color-mix(in srgb, var(--muted) 35%, transparent) transparent; }
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--muted) 35%, transparent); border-radius: 999px; }
*::-webkit-scrollbar-track { background: transparent; }

/* ═══ Ambient background — aurora orbs + grid + grain ═══ */
.ambient {
  position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
  contain: strict;
  transform: translateZ(0);
  background:
    radial-gradient(1200px 600px at 85% -10%, var(--orb-1), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, var(--orb-3), transparent 60%),
    radial-gradient(800px 500px at 60% 110%, var(--orb-2), transparent 60%),
    var(--bg);
}
.ambient::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 100%);
}
.orb {
  position: absolute; border-radius: 50%;
  contain: strict;
}
.orb-1 { width: 640px; height: 640px; top: -220px; inset-inline-end: -160px; background: radial-gradient(circle, var(--orb-1) 0%, transparent 68%); }
.orb-2 { width: 540px; height: 540px; bottom: -190px; inset-inline-start: 16%; background: radial-gradient(circle, var(--orb-2) 0%, transparent 68%); }
.orb-3 { width: 500px; height: 500px; top: 32%; inset-inline-start: -190px; background: radial-gradient(circle, var(--orb-3) 0%, transparent 68%); }
/* انیمیشن گوی‌ها فقط روی دسکتاپ با ماوس؛ روی موبایل ثابت می‌مانند تا اسکرول و blur نوارها سنگین نشود */
@media (hover: hover) and (min-width: 720px) {
  .orb { animation: orb-drift 22s ease-in-out infinite alternate; will-change: transform; }
  .orb-2 { animation-delay: -8s; animation-duration: 28s; }
  .orb-3 { animation-delay: -14s; animation-duration: 25s; }
}
@media (max-width: 719px) {
  .orb-1 { width: 380px; height: 380px; top: -160px; inset-inline-end: -120px; }
  .orb-2 { width: 320px; height: 320px; bottom: -140px; }
  .orb-3 { width: 300px; height: 300px; inset-inline-start: -140px; }
  .ambient::before { background-size: 40px 40px; }
}
@keyframes orb-drift {
  from { transform: translate3d(0,0,0) scale(1); }
  to { transform: translate3d(-60px, 50px, 0) scale(1.15); }
}

/* ═══ Glass & motion utilities ═══ */
.glass {
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line);
}
.text-gradient {
  background: linear-gradient(120deg, var(--text) 0%, var(--primary) 45%, var(--accent) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
@keyframes gradient-pan { from { background-position: 0% 50%; } to { background-position: 100% 50%; } }
.rise { animation: rise .6s var(--ease) both; }
@keyframes rise { from { opacity: 0; transform: translateY(14px) scale(.985); } to { opacity: 1; transform: none; } }
.page-enter { animation: page-in .45s var(--ease) both; }
@keyframes page-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.pop { animation: pop .3s var(--spring) both; }
@keyframes pop { from { opacity: 0; transform: scale(.94); } to { opacity: 1; transform: none; } }

kbd.key, .searchbox kbd {
  font-family: var(--mono); font-size: .66rem; line-height: 1;
  background: var(--surface-3); border: 1px solid var(--line-2);
  border-bottom-width: 2px; border-radius: 6px; padding: 4px 6px; color: var(--muted);
}

/* ═══ App shell ═══ */
.app { display: flex; min-height: 100dvh; }

/* Sidebar (desktop) */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  padding: 20px 14px;
  border-inline-end: 1px solid var(--line);
  position: sticky; top: 0; height: 100dvh; overflow-y: auto;
  display: flex; flex-direction: column; gap: 4px;
  background: color-mix(in srgb, var(--surface-solid) 78%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overscroll-behavior: contain;
  contain: layout style;
  transform: translateZ(0);
}
.brand { display: flex; align-items: center; gap: 12px; padding: 6px 10px 16px; }
.brand-logo {
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(140deg, var(--primary-2), var(--primary) 60%, var(--primary-3));
  color: #fff;
  box-shadow: 0 10px 30px -10px var(--glow), inset 0 1px 0 rgba(255,255,255,.25);
  position: relative;
}
.brand-logo svg { width: 24px; height: 24px; }
.brand-name { font-weight: 900; font-size: 1.12rem; letter-spacing: -.02em; }
.brand-sub { font-size: .7rem; color: var(--muted); margin-top: -2px; }
.chip-ver {
  margin-inline-start: auto;
  border: 1px solid var(--line); background: var(--surface-2);
  border-radius: 999px; padding: 1px 8px;
  font-size: .62rem; font-weight: 700; color: var(--muted);
}

.nav-item {
  display: flex; align-items: center; gap: 12px; width: 100%;
  padding: 10px 14px; border-radius: 14px; border: 1px solid transparent;
  color: var(--muted); font-weight: 600; font-size: .9rem; text-align: start;
  background: none; cursor: pointer; position: relative;
  transition: background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
}
@media (hover: hover) {
  .nav-item:hover { background: var(--surface-2); color: var(--text); transform: translateX(-2px); }
}
.nav-item:active { background: var(--surface-2); }
.nav-item.active {
  color: var(--primary);
  background: linear-gradient(90deg, color-mix(in srgb, var(--primary) 16%, transparent), color-mix(in srgb, var(--primary) 4%, transparent));
  border-color: color-mix(in srgb, var(--primary) 18%, transparent);
}
.nav-item.active::before {
  content: ""; position: absolute; inset-inline-start: -1px; top: 22%; bottom: 22%; width: 3px;
  border-radius: 999px; background: var(--primary); box-shadow: 0 0 12px var(--glow);
}
.nav-item .ico { width: 22px; text-align: center; font-size: 1.05rem; }

.offline-card {
  margin-top: 14px;
  border: 1px solid var(--line); border-radius: 16px;
  padding: 12px 14px;
  background: linear-gradient(140deg, color-mix(in srgb, var(--primary) 14%, transparent), transparent);
}
.offline-card .t { display: flex; align-items: center; gap: 6px; font-size: .8rem; font-weight: 800; }
.offline-card .t .ico { color: var(--primary); }
.offline-card p { margin: 4px 0 0; font-size: .7rem; line-height: 1.7; color: var(--muted); }

/* Main column */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 12px;
  padding: 12px clamp(14px, 3vw, 28px);
  padding-top: calc(12px + env(safe-area-inset-top));
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  /* لایهٔ مستقل: هنگام اسکرول دوباره رنگ‌آمیزی نمی‌شود */
  transform: translateZ(0);
  will-change: transform;
  contain: layout style;
}
.searchbox {
  flex: 1; min-width: 0; max-width: 520px;
  display: flex; align-items: center; gap: 10px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 10px 16px;
  color: var(--muted);
  font-size: .85rem; font-weight: 600;
  cursor: pointer;
  transition: border-color .25s var(--ease), color .25s var(--ease), background .25s var(--ease);
}
.searchbox > span:nth-child(2) { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (hover: hover) {
  .searchbox:hover { border-color: color-mix(in srgb, var(--primary) 35%, var(--line)); color: var(--text); }
}
.searchbox:active { border-color: color-mix(in srgb, var(--primary) 35%, var(--line)); }
.searchbox kbd { margin-inline-start: auto; }
.topbar-actions { margin-inline-start: auto; display: flex; gap: 8px; align-items: center; flex-shrink: 0; }

.view {
  width: 100%; max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(16px, 3vw, 32px);
  padding-bottom: calc(var(--nav-h) + 28px);
}

/* Bottom nav (mobile) */
.bottomnav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 50;
  display: none;
  /* روی موبایل بدون backdrop-filter: پس‌زمینهٔ تقریباً مات = اسکرول روان */
  background: color-mix(in srgb, var(--surface-solid) 96%, transparent);
  border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: 0 -8px 24px -16px rgba(0,0,0,.25);
  transform: translateZ(0);
  will-change: transform;
  contain: layout style;
}
.bottomnav .inner { display: flex; }
.bottomnav button {
  flex: 1 1 0; min-width: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  padding: 6px 1px 8px;
  border: 0; background: none;
  color: var(--muted);
  font-size: clamp(.56rem, 2.7vw, .66rem); font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  min-height: 58px;
  cursor: pointer;
  transition: color .2s var(--ease);
}
.bottomnav button .ico {
  display: grid; place-items: center;
  width: 46px; height: 28px; border-radius: 999px;
  font-size: 1.1rem;
  transition: background .2s var(--ease), transform .2s var(--spring);
}
.bottomnav button:active .ico { transform: scale(.92); }
.bottomnav button.active { color: var(--primary); }
.bottomnav button.active .ico { background: color-mix(in srgb, var(--primary) 16%, transparent); }

/* ═══ Dashboard ═══ */
.hero-dash { padding: 10px 0 8px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--surface);
  padding: 4px 14px; font-size: .66rem; font-weight: 700;
  letter-spacing: .14em; color: var(--primary); margin-bottom: 14px;
}
.hero-dash h1 {
  font-size: clamp(1.7rem, 4vw, 2.6rem); font-weight: 900; margin: 0 0 6px;
  background: linear-gradient(120deg, var(--text) 0%, var(--primary) 45%, var(--accent) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-dash p { color: var(--muted); margin: 0; max-width: 60ch; }

.dash-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }

.section-title {
  display: flex; align-items: baseline; justify-content: space-between;
  margin: 36px 0 14px;
}
.section-title h2 { margin: 0; font-size: 1.1rem; }
.section-title a, .section-title button.link {
  font-size: .8rem; color: var(--primary); background: none; border: 0; cursor: pointer;
}

.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr)); gap: 14px; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr)); gap: 14px; }

/* Horizontal chip row for recents */
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 999px; padding: 8px 16px;
  font-size: .82rem; font-weight: 600; cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
@media (hover: hover) {
  .chip:hover { transform: translateY(-2px); box-shadow: var(--shadow-1); border-color: var(--line-2); }
}
.chip:active { transform: scale(.97); }

/* Empty state */
.empty {
  border: 1.5px dashed var(--line-2);
  border-radius: var(--r-lg);
  padding: 44px 20px; text-align: center;
  color: var(--muted);
}
.empty .big { font-size: 2.4rem; display: block; margin-bottom: 8px; }