/* ================= Base & Tokens ================= */
@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@100;300;400;500;700;900&display=swap');

:root {
  /* Brand (Gold) */
  --primary: #D4AF37;          /* طلایی */
  --primary-light: #E3C663;    /* روشن */
  --primary-dark: #C39A22;     /* تیره */
  --secondary: #D4AF37;

  /* States */
  --success: #16a34a;
  --danger: #ef4444;
  --warning: #f59e0b;

  /* Light surfaces */
  --light-bg: #FFF7E6;         /* کرم روشن */
  --light-text: #1e293b;
  --light-card: #ffffff;
  --light-border: #e2e8f0;

  /* Dark surfaces */
  --dark-bg: #0f1115;          /* ذغالی تیره */
  --dark-text: #e5e7eb;
  --dark-card: #171a1f;
  --dark-border: #2a2f37;

  /* Footer vars (سازگار با کد قدیمی) */
  --primary-color: #12151b;
  --secondary-color: #E3C663;
  --accent-color: var(--primary);
  --text-color: #333;
  --border-radius: 12px;
  --box-shadow: 0 6px 16px -8px rgba(0,0,0,.15);

  --vh: 1vh;
}

body {
  font-family: 'Vazirmatn', sans-serif;
  min-height: 100vh;
  min-height: calc(var(--vh, 1vh) * 100);
  transition: background-color .25s ease, color .25s ease;
}

.light-mode { background-color: var(--light-bg); color: var(--light-text); }
.dark-mode  { background-color: var(--dark-bg);  color: var(--dark-text); }

/* ================= Navbar ================= */
/* حذف بنفش قبلی و استفاده از پس‌زمینه‌های شفاف با بلور */
.navbar {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid;
  transition: all .3s cubic-bezier(0.4,0,0.2,1);
}
.light-mode .navbar {
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(226, 232, 240, 0.9);
}
.dark-mode .navbar {
  background: rgba(15, 17, 21, 0.72);
  border-color: rgba(255, 255, 255, 0.06);
}

/* گرادیان متن/مرز با طلایی */
.navbar-gradient {
  background: linear-gradient(90deg, var(--primary-light) 0%, var(--primary) 50%, var(--primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* ================= Mobile Menu ================= */
.mobile-menu {
  transition: max-height .3s ease, opacity .25s ease;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  border-bottom: 1px solid transparent;
}
.mobile-menu.open { max-height: 520px; opacity: 1; }
.light-mode .mobile-menu { background: #fff; border-color: var(--light-border); }
.dark-mode  .mobile-menu { background: var(--dark-card); border-color: rgba(255,255,255,.08); }

/* لینک‌های منو */
.mobile-menu a {
  display: block;
  padding: 12px 14px;
  border-radius: 12px;
  transition: background-color .2s ease, color .2s ease;
  color: inherit;
}
.light-mode .mobile-menu a:hover { background: rgba(212,175,55,.10); }
.dark-mode  .mobile-menu a:hover { background: rgba(212,175,55,.16); }

/* ================= Cards / Components ================= */
.luxury-card {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 16px;
  box-shadow: 0 12px 24px -6px rgba(0, 0, 0, 0.1);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid;
}
.light-mode .luxury-card { background: rgba(255,255,255,0.95); border-color: var(--light-border); }
.dark-mode  .luxury-card { background: linear-gradient(145deg, rgba(23,26,31,.9) 0%, rgba(15,17,21,.96) 100%); border-color: rgba(255,255,255,.06); }
.luxury-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
}
.luxury-card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px -10px rgba(0,0,0,.25); }
.light-mode .luxury-card:hover { border-color: rgba(212,175,55,.45); }
.dark-mode  .luxury-card:hover { border-color: rgba(212,175,55,.28); }

.positive { color: var(--success); }
.negative { color: var(--danger); }
.light-mode .positive { background: rgba(22,163,74,.08); }
.light-mode .negative { background: rgba(239,68,68,.08); }
.dark-mode  .positive { background: rgba(22,163,74,.15); }
.dark-mode  .negative { background: rgba(239,68,68,.15); }

.loading-spinner { animation: spin 1.2s linear infinite; border-top-color: var(--primary); }
@keyframes spin { to { transform: rotate(360deg); } }

.fade-in { animation: fadeIn .5s ease-out forwards; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* Inputs / Search */
.search-input { transition: box-shadow .2s ease, border-color .2s ease, background-color .2s ease; border: 1px solid; }
.light-mode .search-input { background: rgba(255,255,255,.95); border-color: var(--light-border); color: var(--light-text); }
.dark-mode  .search-input { background: rgba(27,31,37,.7); border-color: rgba(255,255,255,.08); color: #fff; }
.search-input:focus { box-shadow: 0 0 0 3px rgba(212,175,55,.25); border-color: var(--primary); }

/* Badges / Tabs */
.coin-badge { transition: .2s; background: rgba(212,175,55,.15); color: var(--primary); }
.coin-badge:hover { transform: scale(1.05); background: rgba(212,175,55,.25); }
.rate-badge { border: 1px solid; border-radius: 10px; padding: 6px 10px; }
.light-mode .rate-badge { background: #fff; border-color: var(--light-border); }
.dark-mode  .rate-badge { background: rgba(27,31,37,.7); border-color: rgba(255,255,255,.08); }

.refresh-btn {
  transition: transform .15s ease, box-shadow .2s ease, background .25s ease;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
  box-shadow: 0 6px 14px -6px rgba(212,175,55,.55);
  color: #111827;
}
.refresh-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 18px -6px rgba(212,175,55,.6); }
.refresh-btn:active { transform: translateY(0); }

.glow { animation: glow 2s ease-in-out infinite alternate; }
@keyframes glow { from { box-shadow: 0 0 6px rgba(212,175,55,.45); } to { box-shadow: 0 0 16px rgba(212,175,55,.7); } }

.tab-active {
  background: rgba(212,175,55,.12);
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
}
.light-mode .tab-active { background: rgba(212,175,55,.10); }

/* Charts */
.chart-container { height: 120px; border-radius: 8px; position: relative; overflow: hidden; }
.light-mode .chart-container { background: rgba(241,245,249,.7); }
.dark-mode  .chart-container { background: rgba(15,23,42,.5); }
.chart-line { position: absolute; bottom: 0; left: 0; right: 0; height: 2px; }
.light-mode .chart-line { background: rgba(203,213,225,.5); }
.dark-mode  .chart-line { background: rgba(255,255,255,.1); }
.chart-point { position: absolute; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); transform: translate(-50%, 50%); }

/* Tooltip */
.tooltip { position: relative; }
.tooltip:hover .tooltip-text { visibility: visible; opacity: 1; }
.tooltip-text {
  visibility: hidden; opacity: 0; position: absolute; z-index: 10; bottom: 125%; left: 50%; transform: translateX(-50%);
  padding: 6px 10px; border-radius: 6px; font-size: 12px; white-space: nowrap; transition: all .2s ease; border: 1px solid;
}
.light-mode .tooltip-text { background: #fff; border-color: var(--light-border); color: var(--light-text); box-shadow: 0 2px 8px rgba(0,0,0,.1); }
.dark-mode  .tooltip-text { background: rgba(27,31,37,.98); border-color: rgba(212,175,55,.22); color: #fff; }
.tooltip-text::after {
  content: ''; position: absolute; top: 100%; left: 50%; transform: translateX(-50%); border-width: 5px; border-style: solid;
}
.light-mode .tooltip-text::after { border-color: #fff transparent transparent transparent; }
.dark-mode  .tooltip-text::after { border-color: rgba(27,31,37,.98) transparent transparent transparent; }

/* Theme switch */
.theme-switch { position: relative; display: inline-block; width: 60px; height: 30px; }
.theme-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; inset: 0; background: #cbd5e1; transition: .4s; border-radius: 34px; }
.slider:before { content: ""; position: absolute; height: 22px; width: 22px; left: 4px; bottom: 4px; background: #fff; transition: .4s; border-radius: 50%; }
input:checked + .slider { background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%); }
input:checked + .slider:before { transform: translateX(30px); }
.slider-icon { position: absolute; top: 50%; transform: translateY(-50%); font-size: 14px; color: #fff; }
.sun-icon { left: 8px; }
.moon-icon { right: 8px; }

.light-mode .text-muted { color: #64748b; }
.dark-mode  .text-muted { color: #94a3b8; }
.light-mode .divider { background: #e2e8f0; }
.dark-mode  .divider { background: #334155; }

/* Hamburger */
.hamburger { transition: all .3s ease; width: 24px; height: 24px; position: relative; }
.hamburger span { display: block; position: absolute; height: 2px; width: 100%; background: currentColor; border-radius: 2px; left: 0; transition: .25s ease-in-out; }
.hamburger span:nth-child(1){ top: 6px; }
.hamburger span:nth-child(2), .hamburger span:nth-child(3){ top: 12px; }
.hamburger span:nth-child(4){ top: 18px; }
.hamburger.open span:nth-child(1){ top: 12px; width: 0%; left: 50%; }
.hamburger.open span:nth-child(2){ transform: rotate(45deg); }
.hamburger.open span:nth-child(3){ transform: rotate(-45deg); }
.hamburger.open span:nth-child(4){ top: 12px; width: 0%; left: 50%; }

/* Mobile search */
.mobile-search { transition: max-height .28s ease, opacity .2s ease; max-height: 0; overflow: hidden; opacity: 0; }
.mobile-search.open { max-height: 120px; opacity: 1; }

/* ================= Footer (با طلایی) ================= */
footer {
  background: linear-gradient(135deg, var(--primary-color), #0f1115);
  color: white;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,.15);
  margin-top: 2rem;
}
.footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; padding: 40px; }
.footer-section { padding: 15px; }
.footer-section h3 { font-size: 1.2rem; margin-bottom: 16px; position: relative; padding-bottom: 10px; color: var(--accent-color); }
.footer-section h3::after { content: ''; position: absolute; bottom: 0; right: 0; width: 56px; height: 3px; background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%); border-radius: 2px; }
.about p { text-align: justify; margin-bottom: 16px; line-height: 1.85; }
.links .accordion { background: rgba(255,255,255,.08); border-radius: var(--border-radius); overflow: hidden; margin-bottom: 12px; }
.links .accordion-header { padding: 14px; background: rgba(0,0,0,.25); cursor: pointer; display:flex; justify-content: space-between; align-items:center; transition: .2s; }
.links .accordion-header:hover { background: rgba(0,0,0,.3); }
.links .accordion-header i { transition: transform .25s; }
.links .accordion-content { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.links .accordion.active .accordion-content { max-height: 300px; }
.links .accordion.active .accordion-header i { transform: rotate(180deg); }
.links ul { list-style: none; padding: 12px 14px; }
.links li { margin-bottom: 10px; padding: 8px 0; border-bottom: 1px dashed rgba(255,255,255,.12); }
.links li:last-child { border-bottom: none; }
.links a { color: white; text-decoration: none; display: flex; align-items: center; gap: 10px; transition: color .2s; }
.links a i { color: var(--accent-color); }
.links a:hover { color: var(--accent-color); }
.app-download { text-align: center; background: rgba(255,255,255,.08); padding: 18px; border-radius: var(--border-radius); transition: transform .2s; }
.app-download:hover { transform: translateY(-3px); }
.app-download h4 { margin-bottom: 12px; font-size: 1.05rem; }
.android-icon { font-size: 2.6rem; color: #a4c639; margin-bottom: 10px; display: block; }
.download-btn { display: inline-block; background: var(--accent-color); color: white; padding: 10px 20px; border-radius: 999px; text-decoration: none; font-weight: 700; box-shadow: 0 6px 14px -6px rgba(0,0,0,.25); transition: .2s; }
.download-btn:hover { background: #e2b93a; transform: translateY(-1px); box-shadow: 0 8px 18px -6px rgba(0,0,0,.28); }
.footer-bottom { background: rgba(0,0,0,.22); padding: 16px 24px; font-size: .92rem; display:flex; justify-content: space-between; align-items:center; }
@media (max-width: 768px) {
  .footer-content { grid-template-columns: 1fr; padding: 22px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}

/* ================= PWA Bottom Bar ================= */
/* پیش‌فرض: پنهان؛ فقط در موبایل نمایش داده می‌شود (JS هم کنترل می‌کند) */
#pwa-navbar {
  display: none;
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 1100;
  padding-bottom: env(safe-area-inset-bottom);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid rgba(229,231,235,.9);
  background: rgba(255,255,255,.92);
}
.dark-mode #pwa-navbar {
  border-top-color: rgba(255,255,255,.06);
  background: rgba(15,17,21,.72);
}
#pwa-navbar .flex { height: 64px; padding: 8px 10px; }
#pwa-navbar a {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  color: inherit; text-decoration: none; transition: transform .12s ease, color .2s ease;
}
#pwa-navbar a i { transition: transform .15s ease; }
#pwa-navbar a:hover i { transform: translateY(-2px); }
#pwa-navbar a.active { color: var(--primary); }
#pwa-navbar a.active::after {
  content: ''; display: block; width: 22px; height: 3px; border-radius: 999px;
  background: var(--primary); margin: 4px auto 0;
}

/* ================= Layout & iOS Safe Areas ================= */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: 4rem;
  transition: height .3s ease;
}
.ios-pwa .navbar {
  height: calc(4rem + env(safe-area-inset-top));
  padding-top: env(safe-area-inset-top);
}
/* محتوای اصلی زیر هدر و بالای PWA بار */
main { margin-top: 4rem; margin-bottom: 4rem; }
.ios-pwa main { margin-top: calc(4rem + env(safe-area-inset-top)); }

@supports (padding-top: env(safe-area-inset-top)) {
  body { padding-top: env(safe-area-inset-top); }
  .navbar { padding-top: env(safe-area-inset-top); height: calc(4rem + env(safe-area-inset-top)); }
  .ios-pwa .navbar { padding-top: env(safe-area-inset-top); height: calc(4rem + env(safe-area-inset-top)); }
}

/* ================= Mobile-only overrides ================= */
@media (max-width: 768px) {
  /* هدر موبایل با گرادیان نرم */
  .light-mode .navbar {
    background: linear-gradient(180deg, rgba(255,255,255,.95) 0%, rgba(255,255,255,.88) 100%) !important;
    border-color: rgba(229, 231, 235, .9) !important;
  }
  .dark-mode .navbar {
    background: linear-gradient(180deg, rgba(15,17,21,.80) 0%, rgba(15,17,21,.68) 100%) !important;
    border-color: rgba(255,255,255,.06) !important;
  }

  /* آیکون‌های بالای هدر */
  .refresh-btn,
  #mobile-search-btn,
  #mobile-menu-btn {
    width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center;
    border: 1px solid transparent; box-shadow: 0 6px 16px -8px rgba(0,0,0,.15);
    transition: transform .15s ease, background-color .2s ease, border-color .2s ease;
  }
  .refresh-btn { background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%); color: #111827; }
  #mobile-search-btn, #mobile-menu-btn { background: #ffffff; border-color: #e5e7eb; color: #111827; }
  .dark-mode #mobile-search-btn, .dark-mode #mobile-menu-btn { background: #1b1f25; border-color: rgba(255,255,255,.06); color: #e5e7eb; }
  .refresh-btn:hover, #mobile-search-btn:hover, #mobile-menu-btn:hover { transform: translateY(-2px); }

  /* جستجوی موبایل */
  .mobile-search { padding: 0 12px; }
  .mobile-search .search-input { margin-top: 10px; border-radius: 12px; }

  /* نوار پایین PWA فقط در موبایل */
  #pwa-navbar { display: block; }
  main { margin-bottom: 5.2rem; } /* جا برای نوار پایین */
}
/* ==== PWA Bottom Bar (Mobile Only) ==== */
#pwa-navbar {
  display: none; /* فقط موبایل؛ پایین با @media فعال میشه */
  position: fixed;
  inset: auto 0 0 0;
  z-index: 1100;
  padding-bottom: env(safe-area-inset-bottom);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 -5px 25px rgba(0, 0, 0, 0.1);
  border-top: 1px solid rgba(229,231,235,.9);
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
}
.dark-mode #pwa-navbar {
  background: rgba(15,17,21,0.78);
  border-top-color: rgba(255,255,255,.06);
}

/* ظرف داخلی */
#pwa-navbar .nav-items {
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 64px;
  padding: 8px 10px;
}

/* آیتم‌ها */
#pwa-navbar .nav-item {
  flex: 1;
  text-align: center;
  padding: 8px 0;
  color: var(--text-muted, #64748b);
  text-decoration: none;
  font-size: 0.75rem;
  transition: all 0.3s ease;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  border-radius: 12px;
  margin: 0 4px;
}
.dark-mode #pwa-navbar .nav-item { color: #9aa3af; }

#pwa-navbar .nav-item i {
  font-size: 1.35rem;
  margin-bottom: 4px;
  transition: all 0.3s ease;
}

#pwa-navbar .nav-item:hover {
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 10%, transparent);
}
#pwa-navbar .nav-item.active {
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 14%, transparent);
}
#pwa-navbar .nav-item.active i { transform: translateY(-3px); }

/* نشان (badge) وسط آیتم قیمت‌ها */
#pwa-navbar .nav-item .badge {
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary, #f59e0b);
  color: #fff;
  font-size: 0.6rem;
  padding: 2px 5px;
  border-radius: 10px;
  line-height: 1;
}

/* ==== Price Popup ==== */
#price-popup {
  position: fixed;
  bottom: 76px; /* بالای نوار پایین */
  left: 50%;
  transform: translateX(-50%) scale(0.95);
  width: min(92%, 340px);
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.18);
  z-index: 1099;
  opacity: 0;
  visibility: hidden;
  transition: all 0.28s ease;
  padding: 16px;
}
.dark-mode #price-popup { background: #171a1f; color: #e5e7eb; }

#price-popup.active {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) scale(1);
}
#price-popup::before {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0; height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 10px solid currentColor;
  filter: drop-shadow(0 -2px 4px rgba(0,0,0,.12));
}

/* عنوان پاپ‌آپ */
#price-popup h3 {
  margin: 0 0 12px 0;
  font-size: 1.05rem;
  display: flex; align-items: center; gap: 8px;
  color: inherit;
}
#price-popup h3 i { color: var(--secondary, #f59e0b); }

/* آیتم‌های دسته‌بندی قیمت‌ها */
.price-items {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.price-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px;
  background: #f8fafc;
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: all 0.25s ease;
}
.dark-mode .price-item { background: #1b1f25; }
.price-item:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}
.price-item i { font-size: 1.5rem; margin-bottom: 8px; }
.price-item span { font-size: 0.8rem; font-weight: 500; }

/* پس‌زمینه‌ی تیره هنگام باز شدن پاپ‌آپ */
#popup-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.4);
  z-index: 1098;
  opacity: 0; visibility: hidden;
  transition: all 0.28s ease;
}
#popup-overlay.active { opacity: 1; visibility: visible; }

/* فقط موبایل نمایش بده و فضای پایین محتوا رعایت بشه */
@media (max-width: 768px) {
  #pwa-navbar { display: block; }
  main, .content { padding-bottom: calc(80px + env(safe-area-inset-bottom)); }
}