/* Topspin — design tokens and base styles */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #16161f;
  --fg: #e8e8ec;
  --fg-muted: #8a8a9a;
  --fg-dim: #5a5a6a;
  --accent: #6ee7b7;
  --accent-dim: rgba(110, 231, 183, 0.12);
  --accent-glow: rgba(110, 231, 183, 0.06);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --danger: #f87171;
  --warning: #fbbf24;
  --info: #60a5fa;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.24);
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; }
a:hover { opacity: 0.8; }

/* ===== LAYOUT ===== */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  padding: 28px 24px 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo .logo-mark {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-logo .logo-dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(110, 231, 183, 0.6);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-dim);
  padding: 12px 12px 6px;
  margin-top: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--fg-muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}

.nav-item:hover {
  background: var(--accent-dim);
  color: var(--fg);
}

.nav-item.active {
  background: var(--accent-dim);
  color: var(--accent);
}

.nav-item svg { width: 16px; height: 16px; flex-shrink: 0; }

.nav-badge {
  margin-left: auto;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 100px;
}

.main-content {
  margin-left: 240px;
  flex: 1;
  min-height: 100vh;
}

.top-bar {
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.top-bar-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
}

.page-content {
  padding: 32px;
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card:hover {
  border-color: var(--border-hover);
}

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

.card-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
}

/* ===== STATS GRID ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.stat-card .stat-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--fg-muted);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #0a0a0f;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: rgba(110, 231, 183, 0.2);
}

.btn-secondary:hover {
  background: rgba(110, 231, 183, 0.2);
}

.btn-ghost {
  background: transparent;
  color: var(--fg-muted);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--bg-card);
  color: var(--fg);
}

.btn-danger {
  background: rgba(248, 113, 113, 0.12);
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.2);
}

.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* ===== TABLE ===== */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  background: var(--bg-elevated);
  padding: 12px 16px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--fg-dim);
  border-bottom: 1px solid var(--border);
}

tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
}

tbody tr:last-child { border-bottom: none; }

tbody tr:hover { background: var(--bg-elevated); }

tbody td {
  padding: 14px 16px;
  font-size: 14px;
  color: var(--fg);
  vertical-align: middle;
}

/* ===== BADGE ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
}

.badge-green { background: rgba(110, 231, 183, 0.12); color: var(--accent); }
.badge-blue { background: rgba(96, 165, 250, 0.12); color: var(--info); }
.badge-yellow { background: rgba(251, 191, 36, 0.12); color: var(--warning); }
.badge-red { background: rgba(248, 113, 113, 0.12); color: var(--danger); }
.badge-gray { background: var(--border); color: var(--fg-muted); }

/* ===== FORMS ===== */
.form-group { margin-bottom: 20px; }

label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-muted);
  margin-bottom: 7px;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="url"],
select,
textarea {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea { resize: vertical; min-height: 100px; }

select { appearance: none; cursor: pointer; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
}

.modal-header {
  padding: 24px 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
}

.modal-body { padding: 20px 24px; }

.modal-footer {
  padding: 0 24px 24px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.modal-close {
  background: none;
  border: none;
  color: var(--fg-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: all 0.15s;
}

.modal-close:hover { background: var(--border); color: var(--fg); }

/* ===== LOADING / SPINNER ===== */
.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-pulse {
  animation: pulse 1.5s ease-in-out infinite;
}

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

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--fg-muted);
}

.empty-state svg {
  width: 48px; height: 48px;
  opacity: 0.3;
  margin-bottom: 16px;
}

.empty-state h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 8px;
}

.empty-state p { font-size: 14px; max-width: 320px; margin: 0 auto 24px; }

/* ===== TOAST ===== */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  font-size: 14px;
  color: var(--fg);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.2s ease;
  max-width: 360px;
}

.toast.success { border-left: 3px solid var(--accent); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--info); }

@keyframes slideIn {
  from { transform: translateX(20px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ===== PROSPECT DETAIL ===== */
.prospect-header {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 32px;
}

.prospect-avatar {
  width: 56px; height: 56px;
  background: var(--accent-dim);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

/* ===== EMAIL CARD ===== */
.email-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.email-subject {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 8px;
}

.email-body {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-muted);
  white-space: pre-wrap;
}

/* ===== SCORE BAR ===== */
.score-bar {
  display: flex;
  align-items: center;
  gap: 10px;
}

.score-bar-track {
  flex: 1;
  height: 4px;
  background: var(--border);
  border-radius: 100px;
  overflow: hidden;
}

.score-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent) 0%, #34d399 100%);
  border-radius: 100px;
  transition: width 0.5s ease;
}

.score-value {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  width: 32px;
  text-align: right;
}

/* ===== TAGS ===== */
.tag-list { display: flex; flex-wrap: wrap; gap: 6px; }

.tag {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 10px;
  font-size: 12px;
  color: var(--fg-muted);
}

/* ===== HERO (landing page) ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  overflow: hidden;
}

.hero-inner { max-width: 800px; position: relative; z-index: 2; }

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 560px;
  margin-bottom: 56px;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats { display: flex; align-items: center; gap: 32px; margin-top: 64px; }

.stat-num { display: block; font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--accent); }
.stat-label { display: block; font-size: 13px; color: var(--fg-dim); margin-top: 4px; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

.hero-glow {
  position: absolute;
  top: -20%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(110, 231, 183, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* Utility */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.text-sm { font-size: 13px; }
.text-muted { color: var(--fg-muted); }
.text-accent { color: var(--accent); }
.font-display { font-family: var(--font-display); }
.font-semibold { font-weight: 600; }
.hidden { display: none !important; }