/* ── VARIABLES ── */
:root {
  --bg: #08080f;
  --glass: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.1);
  --glass-hover: rgba(255,255,255,0.08);
  --text: #f0f0ff;
  --muted: rgba(240,240,255,0.45);
  --cyan: #00e5ff;
  --purple: #a855f7;
  --green: #22c55e;
  --red: #ef4444;
  --orange: #f97316;
  --nav-h: 64px;
}

/* ── RESET ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { overflow-x: hidden; scroll-behavior: smooth; }
body {
  font-family: 'Barlow', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── BACKGROUND ORBS ── */
.bg-orbs {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: floatOrb 20s ease-in-out infinite;
}
.orb1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #a855f7, transparent 70%);
  top: -100px; left: -100px;
  animation-delay: 0s;
}
.orb2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #00e5ff, transparent 70%);
  top: 30%; right: -100px;
  animation-delay: -7s;
}
.orb3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, #22c55e, transparent 70%);
  bottom: -100px; left: 40%;
  animation-delay: -14s;
}
@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ── GLASS ── */
.glass {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
}

/* ── NAVBAR ── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(8,8,15,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 32px;
  z-index: 100;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  font-size: 1.5rem;
  color: var(--cyan);
}
.logo-name {
  font-family: 'Barlow', sans-serif;
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-tabs {
  display: flex;
  gap: 4px;
  background: rgba(255,255,255,0.05);
  padding: 4px;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
}
.nav-tab {
  background: none;
  border: none;
  color: var(--muted);
  font-family: 'Barlow', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.2s;
}
.nav-tab:hover { color: var(--text); }
.nav-tab.active {
  background: rgba(255,255,255,0.1);
  color: var(--text);
}

.nav-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.search-icon-nav {
  position: absolute;
  left: 12px;
  color: var(--muted);
  pointer-events: none;
}
.search-wrap input {
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 8px 12px 8px 36px;
  color: var(--text);
  font-family: 'Barlow', sans-serif;
  font-size: 0.85rem;
  width: 200px;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}
.search-wrap input::placeholder { color: var(--muted); }
.search-wrap input:focus {
  border-color: var(--cyan);
  background: rgba(0,229,255,0.05);
}

.live-dot {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--green);
  letter-spacing: 0.05em;
}
.live-dot span {
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ── MAIN ── */
.main {
  margin-top: var(--nav-h);
  padding: 24px 28px 60px;
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

/* ── TABS ── */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── STATS BAR ── */
.stats-bar {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 14px 24px;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 8px;
}
.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 120px;
}
.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.stat-val {
  font-family: 'Space Mono', monospace;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
}
.stat-change {
  font-size: 0.72rem;
  font-weight: 600;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--glass-border);
  flex-shrink: 0;
  margin: 0 16px;
}

/* ── SECTION HEADER ── */
.section-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}
.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.section-sub {
  font-size: 0.78rem;
  color: var(--muted);
}

/* ── FEATURED COINS GRID ── */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.featured-card {
  padding: 20px;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s;
  position: relative;
  overflow: hidden;
}
.featured-card::before {
  content: '';
  position: absolute;
  top: -40%; right: -40%;
  width: 150px; height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-color, var(--cyan)), transparent 70%);
  opacity: 0.15;
  pointer-events: none;
}
.featured-card:hover {
  transform: translateY(-4px);
  background: var(--glass-hover);
}

.fc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.fc-coin {
  display: flex;
  align-items: center;
  gap: 10px;
}
.fc-img {
  width: 36px; height: 36px;
  border-radius: 50%;
}
.fc-name {
  font-size: 0.9rem;
  font-weight: 700;
}
.fc-symbol {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
}
.fc-change {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
}
.fc-change.up { background: rgba(34,197,94,0.15); color: var(--green); }
.fc-change.down { background: rgba(239,68,68,0.15); color: var(--red); }

.fc-price {
  font-family: 'Space Mono', monospace;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.fc-mcap {
  font-size: 0.72rem;
  color: var(--muted);
}

.fc-sparkline { margin-top: 12px; height: 50px; }
.fc-sparkline canvas { width: 100% !important; height: 50px !important; }

/* ── MID GRID ── */
.mid-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 16px;
  margin-bottom: 28px;
}

.chart-card { padding: 22px; }
.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}
.chart-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.chart-price {
  font-family: 'Space Mono', monospace;
  font-size: 1.6rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.chart-controls {
  display: flex;
  gap: 4px;
}
.chart-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  color: var(--muted);
  font-family: 'Barlow', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.chart-btn:hover { color: var(--text); border-color: rgba(255,255,255,0.2); }
.chart-btn.active {
  background: rgba(0,229,255,0.15);
  border-color: var(--cyan);
  color: var(--cyan);
}
.chart-wrap { height: 260px; position: relative; }

/* ── TRENDING ── */
.trending-card { padding: 20px; }
.trending-header {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.fire { font-size: 1.1rem; }

.trending-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--glass-border);
  cursor: pointer;
  transition: opacity 0.15s;
}
.trending-item:last-child { border-bottom: none; }
.trending-item:hover { opacity: 0.8; }

.trending-rank {
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  color: var(--muted);
  width: 20px;
  flex-shrink: 0;
}
.trending-img { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; }
.trending-info { flex: 1; min-width: 0; }
.trending-name {
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.trending-symbol {
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
}
.trending-score {
  font-size: 0.72rem;
  color: var(--orange);
  font-weight: 600;
  flex-shrink: 0;
}

/* ── COIN TABLE ── */
.table-card { padding: 0; overflow: hidden; margin-top: 0; }
.table-controls { margin-left: auto; }
.glass-select {
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text);
  font-family: 'Barlow', sans-serif;
  font-size: 0.82rem;
  padding: 6px 12px;
  cursor: pointer;
  outline: none;
}

.table-wrap { overflow-x: auto; }
.coin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.coin-table th {
  padding: 14px 16px;
  text-align: left;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  border-bottom: 1px solid var(--glass-border);
  white-space: nowrap;
}
.coin-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  white-space: nowrap;
}
.coin-table tbody tr {
  cursor: pointer;
  transition: background 0.15s;
}
.coin-table tbody tr:hover { background: rgba(255,255,255,0.04); }
.coin-table tbody tr:last-child td { border-bottom: none; }

.coin-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}
.coin-cell img { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; }
.coin-cell-name { font-weight: 600; font-size: 0.875rem; }
.coin-cell-sym {
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
}

.price-mono { font-family: 'Space Mono', monospace; font-size: 0.82rem; }
.up { color: var(--green); }
.down { color: var(--red); }
.rank-num { font-family: 'Space Mono', monospace; font-size: 0.75rem; color: var(--muted); }

.sparkline-cell { width: 100px; }
.sparkline-cell canvas { display: block; }

.empty-row { text-align: center; color: var(--muted); padding: 40px !important; font-size: 0.875rem; }

/* ── PORTFOLIO ── */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.portfolio-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.portfolio-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.glass-input {
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text);
  font-family: 'Barlow', sans-serif;
  font-size: 0.875rem;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.2s;
}
.glass-input::placeholder { color: var(--muted); }
.glass-input:focus { border-color: var(--cyan); background: rgba(0,229,255,0.05); }

.btn-add-holding {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border: none;
  border-radius: 8px;
  color: #000;
  font-family: 'Barlow', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 11px;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
}
.btn-add-holding:hover { opacity: 0.9; transform: translateY(-1px); }

.portfolio-add-card, .portfolio-summary-card { padding: 22px; }

.port-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--glass-border);
}
.port-stat:last-child { border-bottom: none; }
.port-stat-label { font-size: 0.78rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.port-stat-val { font-family: 'Space Mono', monospace; font-size: 1rem; font-weight: 700; }

/* ── MODAL ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open { display: flex; }

.modal {
  width: 100%;
  max-width: 520px;
  padding: 28px;
  position: relative;
  max-height: 85vh;
  overflow-y: auto;
}
.modal::-webkit-scrollbar { width: 4px; }
.modal::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 2px; }

.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  background: rgba(255,255,255,0.1);
  border: none;
  border-radius: 50%;
  width: 30px; height: 30px;
  color: var(--text);
  cursor: pointer;
  font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
}
.modal-close:hover { background: rgba(255,255,255,0.2); }

.modal-coin-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.modal-coin-img { width: 48px; height: 48px; border-radius: 50%; }
.modal-coin-name { font-size: 1.3rem; font-weight: 700; }
.modal-coin-sym { font-size: 0.8rem; color: var(--muted); text-transform: uppercase; }
.modal-coin-price {
  font-family: 'Space Mono', monospace;
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}
.modal-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.modal-stat {
  background: rgba(255,255,255,0.04);
  border-radius: 10px;
  padding: 12px;
}
.modal-stat-label { font-size: 0.7rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }
.modal-stat-val { font-family: 'Space Mono', monospace; font-size: 0.85rem; font-weight: 700; }

.modal-chart-wrap { height: 160px; margin-top: 16px; }
.modal-btn-chart {
  background: rgba(0,229,255,0.1);
  border: 1px solid rgba(0,229,255,0.3);
  border-radius: 8px;
  color: var(--cyan);
  font-family: 'Barlow', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 16px;
  cursor: pointer;
  margin-top: 14px;
  transition: background 0.15s;
  width: 100%;
}
.modal-btn-chart:hover { background: rgba(0,229,255,0.2); }

/* ── LOADING SKELETON ── */
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 6px;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .featured-grid { grid-template-columns: repeat(2, 1fr); }
  .mid-grid { grid-template-columns: 1fr; }
  .trending-card { order: -1; }
}

@media (max-width: 768px) {
  .main { padding: 16px 16px 60px; }
  .navbar { padding: 0 16px; gap: 12px; }
  .nav-tabs { display: none; }
  .search-wrap input { width: 140px; }
  .featured-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stats-bar { padding: 12px 16px; }
  .stat-divider { display: none; }
  .portfolio-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .featured-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .fc-price { font-size: 1rem; }
}