/* ===================================================
   YAOSHI DESIGN SYSTEM v2.0
   Compatible: iOS 10+, Android 5+, Chrome 49+
   =================================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;900&display=swap');

/* --- CSS Variables --- */
:root {
  --gold: #D4AF37;
  --gold-light: #F5C842;
  --gold-dark: #B8960C;
  --bg: #080808;
  --bg2: #0F0F0F;
  --bg3: #1A1A1A;
  --surface: rgba(255,255,255,0.04);
  --border: rgba(255,255,255,0.07);
  --border-gold: rgba(212,175,55,0.3);
  --text: #FFFFFF;
  --text2: rgba(255,255,255,0.6);
  --text3: rgba(255,255,255,0.3);
  --success: #10B981;
  --danger: #EF4444;
  --radius: 16px;
  --radius-lg: 24px;
  --nav-h: 64px;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  min-height: 100vh;
  min-height: -webkit-fill-available;
  -webkit-overflow-scrolling: touch;
  overflow-x: hidden;
  padding-bottom: calc(var(--nav-h) + 16px);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
  padding-bottom: calc(env(safe-area-inset-bottom) + var(--nav-h) + 16px);
}

body.no-nav {
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.page {
  max-width: 480px;
  margin: 0 auto;
}

/* --- Typography --- */
.text-gold { color: var(--gold); }
.text-2 { color: var(--text2); }
.text-3 { color: var(--text3); }
.font-mono { font-family: 'Roboto Mono', 'Courier New', monospace; }

/* Gold gradient text */
.gold-gradient {
  background: -webkit-linear-gradient(left, #D4AF37, #F5C842, #D4AF37);
  background: linear-gradient(to right, #D4AF37, #F5C842, #D4AF37);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Cards & Surfaces --- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.card-lg {
  border-radius: var(--radius-lg);
  padding: 24px;
}

.card-gold {
  border-color: var(--border-gold);
  background: linear-gradient(135deg, rgba(212,175,55,0.08) 0%, rgba(212,175,55,0.02) 100%);
}

/* --- Buttons --- */
.btn {
  display: -webkit-inline-flex;
  display: inline-flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  -webkit-transition: all 0.15s;
  transition: all 0.15s;
  -webkit-appearance: none;
  appearance: none;
  text-decoration: none;
  width: 100%;
  letter-spacing: 0.04em;
}

.btn:active { -webkit-transform: scale(0.97); transform: scale(0.97); opacity: 0.9; }
.btn:disabled { opacity: 0.5; pointer-events: none; }

.btn-gold {
  background: -webkit-linear-gradient(135deg, var(--gold), var(--gold-light));
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: #000;
  -webkit-box-shadow: 0 4px 20px rgba(212,175,55,0.25);
  box-shadow: 0 4px 20px rgba(212,175,55,0.25);
}

.btn-gold:active {
  -webkit-box-shadow: 0 2px 10px rgba(212,175,55,0.2);
  box-shadow: 0 2px 10px rgba(212,175,55,0.2);
}

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--border-gold);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-danger {
  background: rgba(239,68,68,0.1);
  color: var(--danger);
  border: 1px solid rgba(239,68,68,0.3);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 12px;
  border-radius: 8px;
  width: auto;
}

/* --- Inputs --- */
.input {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  -webkit-transition: border-color 0.2s;
  transition: border-color 0.2s;
}

.input:focus { border-color: var(--gold); }
.input::placeholder { color: var(--text3); }

.input-group { display: -webkit-flex; display: flex; flex-direction: column; gap: 6px; }
.input-label { font-size: 12px; color: var(--text2); font-weight: 600; letter-spacing: 0.05em; }

/* --- Bottom Navigation --- */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(8,8,8,0.95);
  border-top: 1px solid var(--border);
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: space-around;
  justify-content: space-around;
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom, 0);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
}

.nav-item {
  display: -webkit-flex;
  display: flex;
  -webkit-flex-direction: column;
  flex-direction: column;
  -webkit-align-items: center;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  cursor: pointer;
  -webkit-transition: opacity 0.2s;
  transition: opacity 0.2s;
  color: var(--text3);
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.nav-item .nav-icon { width: 22px; height: 22px; }
.nav-item .nav-label { font-size: 10px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.nav-item.active { color: var(--gold); }
.nav-item.active .nav-icon { -webkit-filter: drop-shadow(0 0 6px rgba(212,175,55,0.5)); filter: drop-shadow(0 0 6px rgba(212,175,55,0.5)); }

/* Center special nav button */
.nav-center {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: -webkit-linear-gradient(135deg, var(--gold), var(--gold-light));
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-shadow: 0 0 20px rgba(212,175,55,0.4);
  box-shadow: 0 0 20px rgba(212,175,55,0.4);
  margin-top: -10px;
  cursor: pointer;
  -webkit-transition: -webkit-transform 0.2s;
  transition: transform 0.2s;
}

.nav-center:active { -webkit-transform: scale(0.92); transform: scale(0.92); }
.nav-center svg { width: 24px; height: 24px; color: #000; }

/* --- Top Bar --- */
.top-bar {
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  padding: 16px 20px;
  gap: 12px;
}

.top-bar-title {
  -webkit-flex: 1;
  flex: 1;
  text-align: center;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.back-btn {
  width: 36px;
  height: 36px;
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  color: var(--text2);
  -webkit-transition: all 0.2s;
  transition: all 0.2s;
}

.back-btn:active { background: rgba(255,255,255,0.1); }

/* --- Status & Badges --- */
.badge {
  display: -webkit-inline-flex;
  display: inline-flex;
  -webkit-align-items: center;
  align-items: center;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.badge-gold { background: rgba(212,175,55,0.15); color: var(--gold); border: 1px solid var(--border-gold); }
.badge-green { background: rgba(16,185,129,0.12); color: var(--success); }
.badge-red { background: rgba(239,68,68,0.12); color: var(--danger); }
.badge-gray { background: var(--surface); color: var(--text2); }

/* --- Avatar --- */
.avatar {
  border-radius: 50%;
  background: var(--bg3);
  overflow: hidden;
  -webkit-flex-shrink: 0;
  flex-shrink: 0;
}

.avatar-gold { border: 2px solid var(--gold); }
.avatar img { width: 100%; height: 100%; object-fit: cover; }

/* --- Divider --- */
.divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

/* --- Section Label --- */
.section-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* --- Loading Skeleton --- */
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%);
  background-size: 200% 100%;
  -webkit-animation: shimmer 1.5s infinite;
  animation: shimmer 1.5s infinite;
  border-radius: 6px;
}

@-webkit-keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* --- Animations --- */
@-webkit-keyframes fadeIn {
  from { opacity: 0; -webkit-transform: translateY(8px); transform: translateY(8px); }
  to { opacity: 1; -webkit-transform: translateY(0); transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in { -webkit-animation: fadeIn 0.4s ease both; animation: fadeIn 0.4s ease both; }

@-webkit-keyframes pulse {
  0%, 100% { opacity: 1; -webkit-transform: scale(1); transform: scale(1); }
  50% { opacity: 0.7; -webkit-transform: scale(1.05); transform: scale(1.05); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.05); }
}

.pulse { -webkit-animation: pulse 2s ease-in-out infinite; animation: pulse 2s ease-in-out infinite; }

@-webkit-keyframes spinAnim {
  from { -webkit-transform: rotate(0deg); transform: rotate(0deg); }
  to { -webkit-transform: rotate(360deg); transform: rotate(360deg); }
}

@keyframes spinAnim {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spin { -webkit-animation: spinAnim 1s linear infinite; animation: spinAnim 1s linear infinite; }

/* --- Toast --- */
.ys-toast {
  position: fixed;
  top: 20px;
  left: 50%;
  -webkit-transform: translateX(-50%) translateY(-80px);
  transform: translateX(-50%) translateY(-80px);
  background: rgba(20,20,20,0.95);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  z-index: 9999;
  -webkit-transition: -webkit-transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
  white-space: nowrap;
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  -webkit-box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  max-width: 90vw;
}

.ys-toast.show { -webkit-transform: translateX(-50%) translateY(0); transform: translateX(-50%) translateY(0); }
.ys-toast.success { border-color: rgba(16,185,129,0.4); }
.ys-toast.error { border-color: rgba(239,68,68,0.4); }
.ys-toast.gold { border-color: var(--border-gold); }

/* --- Modal --- */
.ys-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.8);
  z-index: 500;
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  justify-content: center;
  padding: 24px;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  -webkit-transition: opacity 0.25s;
  transition: opacity 0.25s;
}

.ys-modal-overlay.show { opacity: 1; pointer-events: auto; }

.ys-modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  width: 100%;
  max-width: 360px;
  -webkit-transform: scale(0.92);
  transform: scale(0.92);
  -webkit-transition: -webkit-transform 0.25s cubic-bezier(0.34,1.56,0.64,1);
  transition: transform 0.25s cubic-bezier(0.34,1.56,0.64,1);
}

.ys-modal-overlay.show .ys-modal {
  -webkit-transform: scale(1);
  transform: scale(1);
}

/* --- Stats Grid --- */
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stats-grid-3 { grid-template-columns: 1fr 1fr 1fr; }

.stat-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 14px; }
.stat-value { font-size: 20px; font-weight: 900; margin-top: 4px; }
.stat-label { font-size: 10px; color: var(--text3); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }

/* --- List Items --- */
.list-item {
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  -webkit-transition: background 0.2s;
  transition: background 0.2s;
}

.list-item:active { background: rgba(255,255,255,0.07); }
.list-item-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: -webkit-flex;
  display: flex;
  -webkit-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-flex-shrink: 0;
  flex-shrink: 0;
}

.list-item-content { -webkit-flex: 1; flex: 1; min-width: 0; }
.list-item-title { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.list-item-sub { font-size: 11px; color: var(--text3); margin-top: 2px; }
.list-item-end { text-align: right; -webkit-flex-shrink: 0; flex-shrink: 0; }

/* --- Hero Balance Card --- */
.hero-card {
  background: -webkit-linear-gradient(135deg, rgba(212,175,55,0.12) 0%, rgba(212,175,55,0.04) 50%, rgba(0,0,0,0) 100%);
  background: linear-gradient(135deg, rgba(212,175,55,0.12) 0%, rgba(212,175,55,0.04) 50%, rgba(0,0,0,0) 100%);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -40px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(212,175,55,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-balance { font-size: 36px; font-weight: 900; letter-spacing: -0.02em; line-height: 1; }

/* --- Progress Bar --- */
.progress-bar {
  height: 4px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: -webkit-linear-gradient(left, var(--gold), var(--gold-light));
  background: linear-gradient(to right, var(--gold), var(--gold-light));
  border-radius: 4px;
  -webkit-transition: width 0.6s ease;
  transition: width 0.6s ease;
}

/* --- Scrollable chips --- */
.chip-row {
  display: -webkit-flex;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.chip-row::-webkit-scrollbar { display: none; }

.chip {
  -webkit-flex-shrink: 0;
  flex-shrink: 0;
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text2);
  cursor: pointer;
  white-space: nowrap;
  -webkit-transition: all 0.15s;
  transition: all 0.15s;
}

.chip.active { background: rgba(212,175,55,0.15); border-color: var(--border-gold); color: var(--gold); }
.chip:active { -webkit-transform: scale(0.95); transform: scale(0.95); }

/* --- Live dot --- */
.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  display: inline-block;
  -webkit-animation: livePulse 1.5s ease-in-out infinite;
  animation: livePulse 1.5s ease-in-out infinite;
}

@-webkit-keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* --- Utility --- */
.flex { display: -webkit-flex; display: flex; }
.flex-col { -webkit-flex-direction: column; flex-direction: column; }
.items-center { -webkit-align-items: center; align-items: center; }
.justify-between { -webkit-justify-content: space-between; justify-content: space-between; }
.justify-center { -webkit-justify-content: center; justify-content: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.px { padding-left: 20px; padding-right: 20px; }
.py { padding-top: 16px; padding-bottom: 16px; }
.w-full { width: 100%; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.hidden { display: none !important; }
.rounded-full { border-radius: 9999px; }
.overflow-hidden { overflow: hidden; }
.relative { position: relative; }
.absolute { position: absolute; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* --- Transaction types --- */
.tx-icon-in { background: rgba(16,185,129,0.12); color: var(--success); }
.tx-icon-out { background: rgba(239,68,68,0.1); color: var(--danger); }
.tx-icon-spin { background: rgba(212,175,55,0.12); color: var(--gold); }
.tx-icon-neutral { background: var(--surface); color: var(--text2); }

/* Amount colors */
.amount-in { color: var(--success); font-weight: 700; }
.amount-out { color: var(--danger); font-weight: 700; }
.amount-neutral { color: var(--text2); font-weight: 700; }