:root {
  --bg-gradient: radial-gradient(circle at 50% 0%, #151d30 0%, #0b0f19 75%);
  --card-bg: rgba(22, 31, 51, 0.7);
  --card-border: rgba(255, 255, 255, 0.08);
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --cyan-glow: #00f2fe;
  --red-wall: #f43f5e;
  --green-wall: #10b981;
  --amber-flip: #f59e0b;
  --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #0b0f19;
  background-image: var(--bg-gradient);
  color: var(--text-main);
  min-height: 100vh;
  padding: 8px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.container {
  width: 100%;
  max-width: 1380px;
}

header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  gap: 8px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-icon {
  font-size: 20px;
}

.brand-title {
  font-size: 16px;
  font-weight: 800;
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.search-panel {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.input-wrapper {
  position: relative;
}

.ticker-input {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(0, 242, 254, 0.3);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 8px;
  outline: none;
  width: 110px;
  text-transform: uppercase;
  transition: all 0.2s ease;
}

.ticker-input:focus {
  border-color: var(--cyan-glow);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.4);
}

.btn-search {
  background: linear-gradient(135deg, #00f2fe 0%, #00c6ff 100%);
  color: #0b0f19;
  font-weight: 700;
  padding: 5px 12px;
  font-size: 12px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}

.btn-search:hover {
  box-shadow: 0 0 16px rgba(0, 242, 254, 0.5);
  transform: translateY(-1px);
}

.exp-select {
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 8px;
  outline: none;
  cursor: pointer;
}

.watchlist-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
  overflow-x: auto;
  padding-bottom: 0px;
}

.watchlist-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  margin-right: 2px;
}

.pill {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pill:hover, .pill.active {
  background: rgba(0, 242, 254, 0.15);
  border-color: var(--cyan-glow);
  color: var(--cyan-glow);
}

/* Grid Layout for Metrics */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 8px;
  margin-bottom: 6px;
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 7px 12px;
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-1px);
}

.card-title {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.15;
}

.card-subtext {
  font-size: 10px;
  margin-top: 2px;
  color: var(--text-muted);
}

.card-spot { border-top: 2px solid var(--cyan-glow); }
.card-spot .card-value { color: var(--cyan-glow); }

.card-call { border-top: 2px solid var(--green-wall); }
.card-call .card-value { color: var(--green-wall); }

.card-put { border-top: 2px solid var(--red-wall); }
.card-put .card-value { color: var(--red-wall); }

.card-gamma { border-top: 2px solid var(--amber-flip); }
.card-gamma .card-value { color: var(--amber-flip); }

/* Hover Tooltips CSS */
.has-tooltip {
  position: relative;
  cursor: help;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.info-icon {
  font-size: 12px;
  color: var(--text-muted);
  opacity: 0.75;
  transition: opacity 0.2s, color 0.2s;
}

.has-tooltip:hover .info-icon {
  opacity: 1;
  color: var(--cyan-glow);
}

.has-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: rgba(10, 15, 29, 0.96);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 242, 254, 0.4);
  color: #e2e8f0;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 500;
  line-height: 1.5;
  white-space: normal;
  width: 260px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6), 0 0 15px rgba(0, 242, 254, 0.2);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 999;
  text-transform: none;
  letter-spacing: normal;
}

.has-tooltip:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Chart Container */
.chart-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 14px 18px;
  box-shadow: var(--card-shadow);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.chart-title {
  font-size: 15px;
  font-weight: 700;
}

.view-toggle-bar {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  gap: 6px;
  align-items: center;
}

.chart-legend-custom {
  display: flex;
  gap: 14px;
  font-size: 11px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
  transition: opacity 0.2s ease, filter 0.2s ease, background 0.15s ease;
  padding: 2px 6px;
  border-radius: 4px;
}

.legend-item:hover {
  background: rgba(255, 255, 255, 0.08);
}

.legend-item.disabled {
  opacity: 0.35;
  text-decoration: line-through;
  filter: grayscale(80%);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.chart-wrapper {
  position: relative;
  height: 330px;
  width: 100%;
}

.loading-overlay {
  position: absolute;
  top: 10px;
  left: 12px;
  z-index: 10;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--amber-flip);
  color: var(--amber-flip);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 6px;
  backdrop-filter: blur(8px);
}

.hidden {
  display: none !important;
}

/* Option Seller Assistant Card */
.seller-card {
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(0, 242, 254, 0.2);
  border-radius: 10px;
  padding: 7px 12px;
  margin-bottom: 6px;
  box-shadow: var(--card-shadow);
}

.seller-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
  flex-wrap: wrap;
  gap: 4px;
}

.seller-title {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
}

.seller-badge {
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 8px;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid #10b981;
  color: #10b981;
}

.seller-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 8px;
}

.seller-box {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  padding: 6px 10px;
}

.seller-box-call { border-left: 3px solid #f43f5e; }
.seller-box-put { border-left: 3px solid #10b981; }

.seller-box-label {
  font-size: 10.5px;
  color: var(--text-muted);
  margin-bottom: 1px;
}

.seller-box-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13.5px;
  font-weight: 700;
  color: #fff;
}

.seller-box-sub {
  font-size: 10.5px;
  color: var(--cyan-glow);
  margin-top: 1px;
  font-weight: 600;
}

.seller-price-tag {
  font-size: 10.5px;
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  padding: 2px 6px;
  margin-top: 2px;
  font-family: 'JetBrains Mono', monospace;
}