@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@500;600;700;800&display=swap');

:root {
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  /* Color Palette */
  --bg-dark: #090D16;
  --bg-card: rgba(18, 26, 43, 0.75);
  --bg-card-hover: rgba(26, 37, 60, 0.85);
  --bg-input: rgba(13, 19, 33, 0.9);
  
  --border-card: rgba(247, 147, 26, 0.15);
  --border-subtle: rgba(255, 255, 255, 0.08);

  --accent-btc: #F7931A;
  --accent-btc-glow: rgba(247, 147, 26, 0.35);
  --accent-gradient: linear-gradient(135deg, #F7931A 0%, #FFB800 100%);
  --accent-green: #10B981;
  --accent-green-glow: rgba(16, 185, 129, 0.3);
  --accent-blue: #3B82F6;
  --accent-purple: #8B5CF6;

  --text-main: #F1F5F9;
  --text-muted: #94A3B8;
  --text-dim: #64748B;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), inset 0 1px 1px rgba(255, 255, 255, 0.1);
  --shadow-gold: 0 10px 30px -5px rgba(247, 147, 26, 0.25);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(247, 147, 26, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(59, 130, 246, 0.06) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(15, 23, 42, 0.5) 0%, var(--bg-dark) 100%);
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: 60px;
}

.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 24px 20px;
}

/* Header & Top Bar */
.app-header {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btc-logo {
  width: 52px;
  height: 52px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 28px;
  color: #FFF;
  box-shadow: var(--shadow-gold);
  flex-shrink: 0;
  transform: rotate(-10deg);
  transition: transform var(--transition-fast);
}

.btc-logo:hover {
  transform: rotate(0deg) scale(1.05);
}

.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text p {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 400;
}

/* Controls Header (Back to NomadIQ Link & Language Picker) */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(247, 147, 26, 0.12);
  border: 1px solid rgba(247, 147, 26, 0.3);
  color: var(--accent-btc);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
  backdrop-filter: blur(12px);
}

.btn-back-link:hover {
  background: var(--accent-gradient);
  color: #FFF;
  border-color: var(--accent-btc);
  box-shadow: 0 4px 15px rgba(247, 147, 26, 0.35);
  transform: translateY(-1px);
}

.lang-selector {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 4px;
  gap: 4px;
  backdrop-filter: blur(12px);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.lang-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.lang-btn.active {
  background: var(--accent-gradient);
  color: #FFF;
  box-shadow: 0 4px 12px rgba(247, 147, 26, 0.3);
}

/* Institutional Presets & Sources Panel Combined */
.presets-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
}

.presets-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.presets-title {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent-btc);
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-reset {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: #FCA5A5;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-reset:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #FFF;
  border-color: #EF4444;
}

/* Collapsible Section Controls */
.btn-toggle-section {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.btn-toggle-section:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #FFF;
  border-color: rgba(255, 255, 255, 0.2);
}

.collapsible-content {
  max-height: 3500px;
  opacity: 1;
  overflow: visible;
  transition: max-height 0.35s ease-in-out, opacity 0.25s ease-in-out, margin-top 0.25s ease-in-out;
}

.collapsible-content.collapsed {
  max-height: 0 !important;
  opacity: 0 !important;
  margin-top: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  overflow: hidden !important;
  pointer-events: none;
}

.sources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

/* Interactive Source Preset Card */
.source-card {
  background: rgba(13, 19, 33, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-normal);
  user-select: none;
}

.source-card:hover {
  border-color: var(--accent-btc);
  background: rgba(247, 147, 26, 0.06);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(247, 147, 26, 0.15);
}

.source-card.active {
  border-color: var(--accent-btc);
  background: linear-gradient(135deg, rgba(247, 147, 26, 0.18) 0%, rgba(15, 23, 42, 0.95) 100%);
  box-shadow: 0 0 25px rgba(247, 147, 26, 0.35);
}

.source-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.source-name {
  font-size: 14px;
  font-weight: 700;
  color: #FFF;
}

.source-alloc-tag {
  background: var(--accent-gradient);
  color: #FFF;
  font-size: 12px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(247, 147, 26, 0.3);
  white-space: nowrap;
}

.source-alloc-tag.neutral {
  background: rgba(148, 163, 184, 0.2);
  color: var(--text-muted);
  border: 1px solid rgba(148, 163, 184, 0.3);
  box-shadow: none;
}

.source-note {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
}

.source-card-bottom {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-top: 4px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.apply-hint {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: color var(--transition-fast);
}

.source-card:hover .apply-hint {
  color: var(--accent-btc);
}

.source-card.active .apply-hint {
  color: var(--accent-btc);
}

/* Main Grid Layout */
.app-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

@media (min-width: 1024px) {
  .app-grid {
    grid-template-columns: 1fr 1fr;
  }
  .full-width {
    grid-column: 1 / -1;
  }
}

/* Glass Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-normal);
  overflow: visible;
}

.card:hover {
  border-color: rgba(247, 147, 26, 0.3);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  gap: 12px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-title .step-badge {
  background: var(--accent-gradient);
  color: #FFF;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}

.card-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Inputs & Form Controls */
.input-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  overflow: visible;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}

.input-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.input-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Live Status Badge & Pulse */
.live-status-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-green);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
}

.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green-glow);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.btn-refresh-price {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: var(--accent-blue);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-refresh-price:hover {
  background: rgba(59, 130, 246, 0.2);
  color: #FFF;
  border-color: var(--accent-blue);
}

/* Tooltip Fixed Positioning (Dropdown Below Info Icon) */
.info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  cursor: help;
  position: relative;
  transition: all var(--transition-fast);
}

.info-icon:hover {
  background: var(--accent-btc);
  color: #FFF;
}

.info-icon:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  top: 135%;
  right: 0;
  background: #0F172A;
  border: 1px solid var(--accent-btc);
  color: var(--text-main);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.45;
  white-space: normal;
  width: 240px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.85);
  z-index: 999;
  pointer-events: none;
}

.input-control {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-main);
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 600;
  width: 100%;
  outline: none;
  transition: all var(--transition-fast);
}

.input-control:focus {
  border-color: var(--accent-btc);
  box-shadow: 0 0 0 3px var(--accent-btc-glow);
}

select.input-control {
  appearance: auto;
  cursor: pointer;
}

select.input-control option {
  background-color: #0F172A;
  color: #F8FAFC;
}

/* Tables with Sliders */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.calc-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}

.calc-table th {
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.calc-table td {
  padding: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  vertical-align: middle;
  font-size: 14px;
}

.calc-table tr:last-child td {
  border-bottom: none;
}

.item-name {
  font-weight: 600;
  color: var(--text-main);
}

.cap-val {
  font-size: 13px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.inflow-val {
  font-weight: 700;
  color: var(--accent-btc);
  font-variant-numeric: tabular-nums;
}

/* Range Slider Styling (0-100%) */
.slider-container {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 200px;
}

.range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  transition: background var(--transition-fast);
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-gradient);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition-fast);
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-input {
  width: 70px;
  padding: 6px 8px;
  font-size: 13px;
  text-align: right;
  border-radius: var(--radius-sm);
}

/* Result Cards Inside Sections */
.result-box {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 16px;
}

.result-item {
  display: flex;
  flex-direction: column;
}

.result-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.result-value {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 4px;
}

.result-value.highlight {
  color: var(--accent-btc);
}

/* Final Summary Dashboard (Hero Section 4) */
.summary-card {
  background: linear-gradient(135deg, rgba(247, 147, 26, 0.12) 0%, rgba(18, 26, 43, 0.9) 100%);
  border: 1px solid var(--accent-btc);
  box-shadow: 0 15px 40px -10px rgba(247, 147, 26, 0.25);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.stat-card {
  background: rgba(13, 19, 33, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-2px);
}

.stat-card.main-stat {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(247, 147, 26, 0.2) 0%, rgba(15, 23, 42, 0.8) 100%);
  border-color: rgba(247, 147, 26, 0.4);
}

@media (min-width: 768px) {
  .stat-card.main-stat {
    grid-column: span 2;
  }
}

.stat-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 800;
  color: #FFF;
  margin-top: 6px;
  letter-spacing: -0.5px;
}

.stat-value.gold {
  color: var(--accent-btc);
  text-shadow: 0 0 20px var(--accent-btc-glow);
}

.stat-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  margin-top: 8px;
  width: fit-content;
}

.stat-badge.green {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Chart Container */
.chart-card {
  margin-top: 24px;
}

.chart-wrapper {
  position: relative;
  width: 100%;
  height: 260px;
  margin-top: 16px;
}

/* Disclaimer Footer */
.disclaimer-text {
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

/* Responsive Tweaks */
@media (max-width: 640px) {
  .header-top {
    flex-direction: column;
    align-items: flex-start;
  }
  .stat-value {
    font-size: 28px;
  }
}