@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Vazirmatn';
  src: url('../fonts/Vazirmatn-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --ink: #f4faf8;
  --muted: #b6c5c0;
  --dim: #82948e;
  --panel: rgba(11, 22, 19, .82);
  --panel-strong: rgba(10, 20, 17, .94);
  --border: rgba(226, 244, 238, .16);
  --accent: #43d6bd;
  --accent-strong: #14b89e;
  --success: #58dfa0;
  --danger: #ff766c;
  --ease: 180ms ease;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; background: #06100d; }
body { color: var(--ink); font-family: 'Vazirmatn', Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
button, a { font: inherit; -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid rgba(67,214,189,.65); outline-offset: 3px; }
.ar-experience, #canvas { position: fixed; inset: 0; width: 100%; height: 100%; }
#canvas { display: block; width: 100vw; height: 100dvh; background: #06100d; }
.camera-shade { position: fixed; inset: 0; pointer-events: none; background: linear-gradient(180deg, rgba(3,10,8,.58) 0, transparent 22%, transparent 62%, rgba(3,10,8,.7) 100%); }
.ar-topbar { position: fixed; z-index: 10; top: 0; left: 0; right: 0; padding: max(14px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left)); display: flex; align-items: center; justify-content: space-between; gap: 12px; pointer-events: none; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.hud-button, .engine-badge { min-height: 44px; color: var(--ink); background: var(--panel); border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 8px 30px rgba(0,0,0,.16); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); pointer-events: auto; }
.hud-button { min-width: 44px; padding: 0; display: inline-flex; align-items: center; justify-content: center; text-decoration: none; transition: background var(--ease), border-color var(--ease); }
.hud-button:hover { background: rgba(20,38,33,.92); border-color: rgba(226,244,238,.28); }
.hud-button svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.hud-button .sound-on { display: none; }
.hud-button[aria-pressed="true"] { color: #06231d; background: var(--accent); border-color: var(--accent); }
.hud-button[aria-pressed="true"] .sound-off { display: none; }.hud-button[aria-pressed="true"] .sound-on { display: block; }
.hud-button-wide { padding: 5px 12px 5px 6px; gap: 9px; }
.brand-cube { width: 32px; height: 32px; display: grid; place-items: center; color: #06231d; background: var(--accent); border-radius: 8px; }
.brand-cube svg { width: 18px; height: 18px; }
.brand-copy strong, .brand-copy small { display: block; }
.brand-copy strong { font-size: 12px; line-height: 1.2; }
.brand-copy small { margin-top: 2px; color: var(--muted); font-size: 9px; }
.engine-badge { height: 44px; padding: 0 13px; display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 11px; font-weight: 700; }
.engine-badge i { width: 7px; height: 7px; border-radius: 50%; background: #f6b94b; box-shadow: 0 0 0 3px rgba(246,185,75,.12); }
.ar-experience[data-state="scanning"] .engine-badge i, .ar-experience[data-state="found"] .engine-badge i { background: var(--success); box-shadow: 0 0 0 3px rgba(88,223,160,.13); }
.ar-experience[data-state="error"] .engine-badge i { background: var(--danger); box-shadow: 0 0 0 3px rgba(255,118,108,.13); }

.tracking-stage { position: fixed; z-index: 4; inset: 100px 16px 142px; display: grid; place-items: center; pointer-events: none; }
.scan-frame { width: min(72vw, 440px); aspect-ratio: 3/4; max-height: 58vh; position: relative; transition: width 260ms ease, opacity var(--ease); }
.corner { position: absolute; width: 52px; height: 52px; opacity: .92; filter: drop-shadow(0 1px 5px rgba(0,0,0,.35)); }
.corner::before, .corner::after { content: ""; position: absolute; background: var(--ink); border-radius: 4px; }
.corner::before { width: 52px; height: 3px; }
.corner::after { width: 3px; height: 52px; }
.corner-tl { top: 0; left: 0; }.corner-tr { top: 0; right: 0; transform: rotate(90deg); }.corner-br { right: 0; bottom: 0; transform: rotate(180deg); }.corner-bl { left: 0; bottom: 0; transform: rotate(270deg); }
.scan-line { position: absolute; left: 12px; right: 12px; top: 15%; height: 1px; opacity: .75; background: linear-gradient(90deg, transparent, var(--accent), transparent); box-shadow: 0 0 12px var(--accent); animation: scan 2.8s cubic-bezier(.45,0,.55,1) infinite alternate; }
.lock-ring { position: absolute; inset: 50% auto auto 50%; width: 74px; height: 74px; transform: translate(-50%,-50%) scale(.75); color: var(--success); opacity: 0; transition: opacity 180ms ease, transform 220ms cubic-bezier(.2,.9,.2,1.2); }
.lock-ring svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.ar-experience[data-state="found"] .corner::before, .ar-experience[data-state="found"] .corner::after { background: var(--success); }
.ar-experience[data-state="found"] .scan-line { opacity: 0; animation-play-state: paused; }
.ar-experience[data-state="found"] .lock-ring { opacity: 1; transform: translate(-50%,-50%) scale(1); }
.ar-experience[data-state="booting"] .tracking-stage, .ar-experience[data-state="requesting"] .tracking-stage, .ar-experience[data-state="error"] .tracking-stage { opacity: .25; }
@keyframes scan { from { top: 14%; } to { top: 86%; } }

.status-panel { position: fixed; z-index: 8; left: max(16px, env(safe-area-inset-left)); right: max(16px, env(safe-area-inset-right)); bottom: max(16px, env(safe-area-inset-bottom)); max-width: 580px; min-height: 88px; margin: 0 auto; padding: 14px; display: grid; grid-template-columns: 44px minmax(0,1fr) auto; align-items: center; gap: 12px; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; box-shadow: 0 16px 46px rgba(0,0,0,.24); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); transition: border-color var(--ease), background var(--ease); }
.status-icon { width: 44px; height: 44px; display: grid; place-items: center; color: var(--accent); background: rgba(67,214,189,.12); border-radius: 12px; }
.status-icon svg { grid-area: 1/1; width: 23px; height: 23px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; transition: opacity var(--ease), transform var(--ease); }
.icon-check, .icon-camera { opacity: 0; transform: scale(.7); }
.ar-experience[data-state="found"] .status-panel { border-color: rgba(88,223,160,.42); background: rgba(8,30,23,.9); }
.ar-experience[data-state="found"] .status-icon { color: var(--success); background: rgba(88,223,160,.14); }
.ar-experience[data-state="found"] .icon-scan, .ar-experience[data-state="requesting"] .icon-scan { opacity: 0; transform: scale(.7); }
.ar-experience[data-state="found"] .icon-check { opacity: 1; transform: scale(1); }
.ar-experience[data-state="requesting"] .icon-camera { opacity: 1; transform: scale(1); }
.status-copy { min-width: 0; }
.status-copy p { margin: 0; }
#statusEyebrow { color: var(--accent); font-size: 9px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
#statusTitle { margin: 2px 0; overflow: hidden; color: var(--ink); font-size: 16px; line-height: 1.25; letter-spacing: -.02em; text-overflow: ellipsis; white-space: nowrap; }
#statusMessage { overflow: hidden; color: var(--muted); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.target-counter { min-width: 51px; padding-left: 12px; text-align: center; border-left: 1px solid var(--border); }
.target-counter strong, .target-counter span { display: block; }
.target-counter strong { font-size: 17px; }
.target-counter span { color: var(--dim); font-size: 8px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }

.loading-overlay { position: fixed; z-index: 30; inset: 0; padding: 24px; display: grid; place-items: center; background: #07110e; transition: opacity 300ms ease, visibility 300ms ease; }
.loading-overlay.dismissed { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-card { width: min(100%, 350px); text-align: center; }
.loader-mark { width: 58px; height: 58px; margin: 0 auto 20px; display: grid; place-items: center; color: #06231d; background: var(--accent); border-radius: 16px; box-shadow: 0 0 0 8px rgba(67,214,189,.08); }
.loader-mark svg { width: 29px; height: 29px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.loader-card p { margin: 0 0 6px; color: var(--accent); font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.loader-card h2 { margin: 0 0 5px; font-size: 21px; letter-spacing: -.03em; }
.loader-card span { color: var(--muted); font-size: 12px; }
.loader-track { width: 100%; height: 3px; margin-top: 26px; overflow: hidden; background: rgba(255,255,255,.08); border-radius: 9px; }
.loader-track i { display: block; width: 42%; height: 100%; background: var(--accent); border-radius: inherit; animation: load 1.35s ease-in-out infinite; }
@keyframes load { from { transform: translateX(-110%); } to { transform: translateX(350%); } }

.error-sheet { position: fixed; z-index: 40; left: max(16px, env(safe-area-inset-left)); right: max(16px, env(safe-area-inset-right)); bottom: max(16px, env(safe-area-inset-bottom)); width: min(calc(100% - 32px), 460px); margin: auto; padding: 20px; color: #1d1d1b; background: #fff; border-radius: 18px; box-shadow: 0 24px 80px rgba(0,0,0,.38); }
.error-icon { width: 42px; height: 42px; margin-bottom: 16px; display: grid; place-items: center; color: #b42318; background: #fff0ee; border-radius: 11px; }
.error-icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.error-copy > p:first-child { margin: 0 0 5px; color: #b42318; font-size: 9px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.error-copy h2 { margin: 0 0 6px; font-size: 20px; letter-spacing: -.03em; }
.error-copy #errorMessage { margin: 0; color: #5f6865; font-size: 12px; }
.error-actions { margin-top: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.sheet-button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid #d4dbd8; border-radius: 9px; color: #17211e; background: #fff; font-size: 12px; font-weight: 750; text-decoration: none; }
.sheet-button.primary { color: #fff; background: #0f766e; border-color: #0f766e; }

.sheet-backdrop { position: fixed; z-index: 50; inset: 0; display: flex; align-items: flex-end; justify-content: center; background: rgba(2,8,6,.58); opacity: 0; visibility: hidden; transition: opacity var(--ease), visibility var(--ease); }
.sheet-backdrop.active { opacity: 1; visibility: visible; }
.marker-sheet { width: min(100%, 620px); max-height: min(76dvh, 680px); padding: 20px max(18px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left)); overflow-y: auto; color: #18221f; background: #f7faf9; border-radius: 22px 22px 0 0; box-shadow: 0 -20px 60px rgba(0,0,0,.22); transform: translateY(18px); transition: transform var(--ease); }
.sheet-backdrop.active .marker-sheet { transform: translateY(0); }
.marker-sheet header { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.marker-sheet header p { margin: 0 0 3px; color: #0f766e; font-size: 9px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.marker-sheet h2 { margin: 0; font-size: 21px; letter-spacing: -.03em; }
.marker-sheet header button { width: 42px; height: 42px; display: grid; place-items: center; color: #58635f; background: #edf2f0; border: 0; border-radius: 10px; }
.marker-sheet header svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.sheet-intro { margin: 13px 0 17px; max-width: 440px; color: #66726e; font-size: 12px; }
.target-guide { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.guide-card { min-width: 0; padding: 9px; display: flex; align-items: center; gap: 10px; background: #fff; border: 1px solid #dfe7e4; border-radius: 11px; }
.guide-card img { width: 58px; height: 70px; flex: 0 0 auto; object-fit: cover; background: #edf2f0; border-radius: 7px; }
.guide-card strong, .guide-card small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.guide-card strong { font-size: 12px; }
.guide-card small { margin-top: 3px; color: #7b8783; font: 9px ui-monospace, SFMono-Regular, Consolas, monospace; }
.guide-empty { grid-column: 1/-1; padding: 24px; color: #68736f; text-align: center; background: #edf2f0; border-radius: 10px; font-size: 12px; }

@media (min-width: 760px) and (orientation: landscape) {
  .tracking-stage { inset: 80px 400px 80px 20px; }
  .scan-frame { width: min(36vw, 400px); max-height: 70vh; }
  .status-panel { left: auto; right: max(24px, env(safe-area-inset-right)); bottom: max(24px, env(safe-area-inset-bottom)); width: 360px; margin: 0; }
}
@media (max-width: 480px) {
  .brand-copy { display: none; }
  .hud-button-wide { width: 44px; padding: 0; }
  .brand-cube { width: 32px; height: 32px; background: transparent; color: var(--accent); }
  .engine-badge { padding-inline: 10px; }
  .scan-frame { width: min(78vw, 340px); }
  .status-panel { grid-template-columns: 42px minmax(0,1fr); }
  .target-counter { display: none; }
  #statusMessage { white-space: normal; line-height: 1.35; }
  .target-guide { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}