/* ============================================================
   PaperclipGo v3.0 Super — Eye-Catching Dark Theme & PWA Styles
   Zero external font trackers; high-contrast financial UI
   ============================================================ */
:root {
  --bg-base: #090d16;
  --bg-card: #111827;
  --bg-card-elevated: #1b2436;
  --bg-input: #0d1320;
  --border-subtle: rgba(148, 163, 184, 0.14);
  --border-focus: #3b82f6;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-purple: #8b5cf6;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-glow: 0 10px 30px -10px rgba(59, 130, 246, 0.22);
}

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

body {
  background: radial-gradient(circle at 50% 0%, #172554 0%, var(--bg-base) 52%);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.site-wrapper {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 3.5rem;
}

/* Header & Live Sentiment Bar */
.site-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.15rem;
  background: rgba(17, 24, 39, 0.82);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 1.75rem;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  text-decoration: none;
}

.privacy-pill {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.14);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.header-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.sentiment-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.38rem 0.75rem;
  border-radius: 999px;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
}

.sentiment-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

.fiat-select {
  background: var(--bg-input);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.6rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

/* Hero Section */
.hero {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 1.75rem;
}

.hero h1 {
  font-size: clamp(1.85rem, 4vw, 2.65rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.18;
  margin-bottom: 0.65rem;
  background: linear-gradient(135deg, #ffffff 0%, #93c5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  color: var(--text-muted);
  font-size: 1.02rem;
}

/* KPI Summary Ribbon */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: rgba(17, 24, 39, 0.9);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow-glow);
}

.kpi-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.kpi-value {
  font-size: 1.65rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.kpi-sub {
  font-size: 0.82rem;
  margin-top: 0.25rem;
  color: var(--text-muted);
}

.pos { color: var(--accent-emerald); }
.neg { color: var(--accent-rose); }

/* Navigation Tabs */
.tab-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  background: #0b1220;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid #475569;
  margin: 28px 0;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

.tab-btn {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #f8fafc;
  border: 2px solid rgba(255, 255, 255, 0.35);
  padding: 18px 14px;
  min-height: 76px;
  border-radius: 12px;
  font-size: 1.05rem;
  font-weight: 750;
  line-height: 1.35;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.tab-btn:nth-child(2) {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  box-shadow: 0 6px 18px rgba(5, 150, 105, 0.35);
}

.tab-btn:nth-child(3) {
  background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
  box-shadow: 0 6px 18px rgba(217, 119, 6, 0.35);
}

.tab-btn:nth-child(4) {
  background: linear-gradient(135deg, #9333ea 0%, #6b21a8 100%);
  box-shadow: 0 6px 18px rgba(147, 51, 234, 0.35);
}

.tab-btn:hover {
  filter: brightness(1.18);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(59, 130, 246, 0.45);
}

.tab-btn:focus-visible {
  outline: 3px solid #ffffff;
  outline-offset: 3px;
}

.tab-btn.active {
  color: #ffffff;
  border-color: #ffffff;
  box-shadow: 0 0 0 3px #0b1220, 0 0 0 6px #ffffff, 0 10px 26px rgba(0, 0, 0, 0.4);
  filter: brightness(1.12);
}

@media (max-width: 768px) {
  .tab-bar {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .tab-bar {
    grid-template-columns: 1fr;
  }

  .tab-btn {
    min-height: 64px;
  }
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* Main Workspace Layout */
.workspace-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.95fr;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 900px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: rgba(17, 24, 39, 0.92);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.35rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
}

/* Form Controls & Table */
.add-row-form {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr auto;
  gap: 0.65rem;
  margin-bottom: 1.15rem;
}

@media (max-width: 640px) {
  .add-row-form {
    grid-template-columns: 1fr;
  }
}

input, select {
  background: var(--bg-input);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.62rem 0.75rem;
  font-size: 0.92rem;
  width: 100%;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--border-focus);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: var(--accent-blue);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.62rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
  white-space: nowrap;
}

.btn:hover {
  background: var(--accent-blue-hover);
}

.btn-secondary {
  background: var(--bg-card-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: #26334d;
}

.btn-emerald {
  background: var(--accent-emerald);
}
.btn-emerald:hover {
  background: #059669;
}

.holdings-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.holdings-table th {
  text-align: left;
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.holdings-table td {
  padding: 0.7rem 0.5rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.08);
  font-variant-numeric: tabular-nums;
}

.nav-badge {
  display: inline-block;
  font-size: 0.68rem;
  padding: 0.12rem 0.45rem;
  border-radius: 4px;
  background: rgba(245, 158, 11, 0.18);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.4);
  margin-left: 0.35rem;
}

/* Scenario Simulator Controls */
.slider-wrap {
  margin: 1rem 0;
}

.scenario-slider {
  width: 100%;
  accent-color: var(--accent-blue);
  cursor: pointer;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.65rem;
}

.preset-chip {
  background: var(--bg-input);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.32rem 0.6rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.preset-chip:hover, .preset-chip.active {
  background: rgba(59, 130, 246, 0.2);
  color: #ffffff;
  border-color: var(--accent-blue);
}

/* Contextual Partner Tip Banner */
.contextual-tip {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.35);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.86rem;
}

/* Affiliate Partner Grid */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.partner-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.partner-card.highlighted {
  border-color: var(--accent-emerald);
  box-shadow: 0 0 18px rgba(16, 185, 129, 0.16);
}

.partner-badge {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-blue);
  font-weight: 700;
  margin-bottom: 0.3rem;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(9, 13, 22, 0.82);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1rem;
}

.modal-backdrop.open {
  display: flex;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  max-width: 540px;
  width: 100%;
  padding: 1.35rem;
  position: relative;
}

/* Footer */
.site-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}