/* =====================================================================
   style.css
   هویت بصری: «قفسه‌ی آرشیو» — کارت‌های فایل مثل بلیت/کارت کاتالوگ کتابخانه
   رنگ‌های اصلی از تم تلگرام خوانده می‌شوند (توسط app.js ست می‌شوند)،
   مقادیر پیش‌فرض زیر فقط برای زمانی است که خارج از تلگرام باز شود.
   ===================================================================== */

:root {
  --tg-theme-bg-color: #14171f;
  --tg-theme-text-color: #eef0f5;
  --tg-theme-hint-color: #8b93a7;
  --tg-theme-link-color: #7aa2ff;
  --tg-theme-button-color: #5b6fed;
  --tg-theme-button-text-color: #ffffff;
  --tg-theme-secondary-bg-color: #1c2030;

  /* رنگ «مهر» هر نوع فایل — مستقل از تم، هویت ثابت آرشیو */
  --stamp-pdf: #c9973e;
  --stamp-voice: #3e8c82;
  --stamp-video: #9a5578;

  --radius-card: 16px;
  --border-soft: color-mix(in srgb, var(--tg-theme-hint-color) 25%, transparent);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--tg-theme-bg-color);
  color: var(--tg-theme-text-color);
  font-family: 'Vazirmatn', system-ui, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

body { padding-bottom: 24px; }

.app { max-width: 640px; margin: 0 auto; padding: 18px 16px 8px; }

/* ---------------------------------------------------------------- سربرگ */
.header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.header-mark {
  width: 44px; height: 44px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: var(--tg-theme-secondary-bg-color);
  color: var(--tg-theme-button-color);
}
.header-mark svg { width: 22px; height: 22px; }
.header-text h1 {
  margin: 0; font-size: 19px; font-weight: 800; letter-spacing: -0.2px;
}
.header-text p {
  margin: 2px 0 0; font-size: 12.5px; color: var(--tg-theme-hint-color);
}

/* ---------------------------------------------------------------- جستجو */
.search-wrap {
  position: relative;
  margin-bottom: 14px;
}
.search-icon {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  width: 18px; height: 18px; color: var(--tg-theme-hint-color);
  pointer-events: none;
}
#searchInput {
  width: 100%;
  padding: 12px 42px 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  background: var(--tg-theme-secondary-bg-color);
  color: var(--tg-theme-text-color);
  font-family: inherit;
  font-size: 14px;
  outline: none;
}
#searchInput::placeholder { color: var(--tg-theme-hint-color); }
#searchInput:focus {
  border-color: var(--tg-theme-button-color);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tg-theme-button-color) 22%, transparent);
}

/* ---------------------------------------------------------------- تب‌ها */
.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: 16px;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex-shrink: 0;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: transparent;
  color: var(--tg-theme-hint-color);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.tab.active {
  background: var(--tg-theme-button-color);
  color: var(--tg-theme-button-text-color);
  border-color: transparent;
}

/* ---------------------------------------------------------------- لیست کارت‌ها */
.file-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }

.file-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--tg-theme-secondary-bg-color);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-card);
  padding: 12px;
  animation: rise 0.28s ease both;
}

.stamp {
  flex-shrink: 0;
  width: 42px; height: 42px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  border: 1.5px dashed currentColor;
  transform: rotate(-6deg);
}
.stamp svg { width: 19px; height: 19px; }
.stamp.pdf   { color: var(--stamp-pdf); }
.stamp.voice { color: var(--stamp-voice); }
.stamp.video { color: var(--stamp-video); }
.stamp.document { color: var(--tg-theme-hint-color); }

.file-info { flex: 1; min-width: 0; }
.file-title {
  margin: 0 0 4px;
  font-size: 14.5px;
  font-weight: 600;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.file-meta {
  display: flex; gap: 8px; align-items: center;
  font-size: 11.5px; color: var(--tg-theme-hint-color);
  direction: ltr; justify-content: flex-end;
}

.divider {
  align-self: stretch;
  border-right: 1.5px dashed var(--border-soft);
  margin: 0 2px;
}

.get-btn {
  flex-shrink: 0;
  display: flex; align-items: center; gap: 6px;
  padding: 9px 14px;
  border-radius: 10px;
  border: none;
  background: var(--tg-theme-button-color);
  color: var(--tg-theme-button-text-color);
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.1s ease;
}
.get-btn:active { transform: scale(0.96); }
.get-btn:disabled { opacity: 0.6; cursor: default; }
.get-btn svg { width: 15px; height: 15px; }

/* ---------------------------------------------------------------- حالت‌های خالی/بارگذاری/خطا */
.state {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; gap: 8px;
  padding: 48px 16px;
  color: var(--tg-theme-hint-color);
}
.hidden { display: none !important; }

.spinner {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 3px solid var(--border-soft);
  border-top-color: var(--tg-theme-button-color);
  animation: spin 0.8s linear infinite;
}
.stamp-empty {
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 2px dashed var(--border-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800;
  transform: rotate(-6deg);
}
.state-empty span { font-size: 12.5px; }
.state-error button {
  margin-top: 4px;
  padding: 9px 18px;
  border-radius: 10px;
  border: none;
  background: var(--tg-theme-button-color);
  color: var(--tg-theme-button-text-color);
  font-family: inherit; font-weight: 700; font-size: 13px;
  cursor: pointer;
}

/* ---------------------------------------------------------------- Toast */
.toast {
  position: fixed;
  bottom: 18px; left: 50%;
  transform: translateX(-50%) translateY(12px);
  max-width: 90%;
  background: var(--tg-theme-secondary-bg-color);
  color: var(--tg-theme-text-color);
  border: 1px solid var(--border-soft);
  padding: 11px 18px;
  border-radius: 12px;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { border-color: color-mix(in srgb, #e5484d 50%, var(--border-soft)); }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: reduce) {
  .file-card { animation: none; }
  .spinner { animation-duration: 1.4s; }
}