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

:root {
  --ink: #0a0a0a;
  --chalk: #fafaf9;
  --accent: #22c55e;
  --accent-dim: #16a34a;
  --accent-light: #dcfce7;
  --muted: #78716c;
  --surface: #f5f5f4;
  --border: #e7e5e4;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
}

body {
  font-family: 'DM Sans', -apple-system, sans-serif;
  color: var(--ink);
  background: var(--chalk);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; }

/* ═══════ NAV ═══════ */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: rgba(250,250,249,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
}
.logo span { color: var(--accent); }
.nav-links { display: flex; gap: 0.25rem; }
.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}
.nav-link:hover { color: var(--ink); background: var(--surface); }
.nav-link.active { color: var(--ink); background: var(--surface); }

/* ═══════ LAYOUT ═══════ */
.page { padding: 5rem 2rem 2rem; max-width: 1200px; margin: 0 auto; }
.page-header { margin-bottom: 2rem; }
.page-header h1 { font-size: 1.75rem; font-weight: 700; margin-bottom: 0.25rem; }
.page-header p { color: var(--muted); font-size: 0.95rem; }

/* ═══════ HERO (Landing) ═══════ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  max-width: 900px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--ink);
  color: var(--chalk);
  padding: 0.5rem 1rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 2rem;
  width: fit-content;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1}50%{opacity:0.4} }

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.hero p {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 540px;
  line-height: 1.6;
  margin-bottom: 2.5rem;
}
.hero-stats {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
}
.hero-stat .num {
  font-family: 'Space Grotesk';
  font-size: 1.5rem;
  font-weight: 700;
}
.hero-stat .label {
  font-size: 0.8rem;
  color: var(--muted);
}
.hero-cta {
  display: flex;
  gap: 1rem;
}

/* ═══════ STEPS ═══════ */
.steps-section { padding: 4rem 2rem; max-width: 1200px; margin: 0 auto; }
.steps-section h2 { font-size: 2rem; text-align: center; margin-bottom: 3rem; }
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.step-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}
.step-num {
  font-family: 'Space Grotesk';
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.step-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.step-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.5; }

/* ═══════ COMPARISON ═══════ */
.comparison {
  background: var(--ink);
  color: var(--chalk);
  padding: 4rem 2rem;
  margin: 4rem 0;
  border-radius: 16px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}
.comparison h2 { text-align: center; font-size: 2rem; margin-bottom: 2rem; }
.comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; max-width: 800px; margin: 0 auto; }
.comp-col h3 { font-size: 1rem; margin-bottom: 1rem; opacity: 0.6; }
.comp-col.highlight h3 { opacity: 1; color: var(--accent); }
.comp-item { padding: 0.75rem 0; border-bottom: 1px solid rgba(255,255,255,0.1); font-size: 0.95rem; }
.comp-item .value { font-weight: 600; }
.comp-item .label { opacity: 0.6; font-size: 0.85rem; }

/* ═══════ BUTTONS ═══════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
  text-decoration: none;
}
.btn-primary {
  background: var(--ink);
  color: var(--chalk);
}
.btn-primary:hover { background: #1a1a1a; transform: translateY(-1px); }
.btn-accent {
  background: var(--accent);
  color: white;
}
.btn-accent:hover { background: var(--accent-dim); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--ink); }
.btn-ghost {
  background: transparent;
  color: var(--muted);
  padding: 0.5rem 0.75rem;
}
.btn-ghost:hover { color: var(--ink); }
.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}
.btn-danger:hover { background: var(--danger); color: white; }
.btn-sm { padding: 0.4rem 0.85rem; font-size: 0.8rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ═══════ CARDS ═══════ */
.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}

/* ═══════ STATS GRID ═══════ */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 2rem; }
.stat-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
}
.stat-card .stat-value {
  font-family: 'Space Grotesk';
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.stat-card .stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ═══════ TABLE ═══════ */
.table-container {
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
table { width: 100%; border-collapse: collapse; }
thead { background: var(--surface); }
th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}
td {
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}
tr:hover td { background: var(--surface); }

/* ═══════ BADGES ═══════ */
.badge {
  display: inline-flex;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-new { background: var(--accent-light); color: var(--accent-dim); }
.badge-researched { background: #dbeafe; color: #1d4ed8; }
.badge-drafted { background: #fef3c7; color: #92400e; }
.badge-contacted { background: #e0e7ff; color: #3730a3; }
.badge-draft { background: var(--surface); color: var(--muted); }
.badge-approved { background: var(--accent-light); color: var(--accent-dim); }

/* ═══════ FORMS ═══════ */
.form-group { margin-bottom: 1.25rem; }
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: 'DM Sans', sans-serif;
  color: var(--ink);
  background: white;
  transition: border-color 0.15s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}
.form-textarea { min-height: 80px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-hint { font-size: 0.8rem; color: var(--muted); margin-top: 0.25rem; }

/* ═══════ MODAL ═══════ */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 200;
  padding: 1rem;
}
.modal {
  background: white;
  border-radius: 16px;
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
}
.modal h2 { font-size: 1.25rem; margin-bottom: 1.5rem; }
.modal-actions { display: flex; justify-content: flex-end; gap: 0.75rem; margin-top: 1.5rem; }

/* ═══════ EMAIL PREVIEW ═══════ */
.email-preview {
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}
.email-preview .email-subject {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
.email-preview .email-to {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.email-preview .email-body {
  font-size: 0.95rem;
  line-height: 1.7;
  white-space: pre-wrap;
}
.email-preview .email-notes {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
  font-style: italic;
}

/* ═══════ EMPTY STATE ═══════ */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
}
.empty-state .icon { font-size: 2.5rem; margin-bottom: 1rem; }
.empty-state h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.empty-state p { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.5rem; }

/* ═══════ LOADING ═══════ */
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-bar {
  width: 100%;
  height: 3px;
  background: var(--surface);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 1rem;
}
.loading-bar .bar {
  height: 100%;
  background: var(--accent);
  animation: loading 1.5s ease-in-out infinite;
  width: 40%;
}
@keyframes loading { 0%{transform:translateX(-100%)}100%{transform:translateX(350%)} }

/* ═══════ SCORE ═══════ */
.score {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 8px;
  font-family: 'Space Grotesk';
  font-weight: 700;
  font-size: 0.85rem;
}
.score-high { background: var(--accent-light); color: var(--accent-dim); }
.score-med { background: #fef3c7; color: #92400e; }
.score-low { background: #fecaca; color: #b91c1c; }

/* ═══════ RESPONSIVE ═══════ */
@media (max-width: 768px) {
  nav { padding: 0.75rem 1rem; }
  .nav-links { gap: 0; }
  .nav-link { padding: 0.5rem 0.65rem; font-size: 0.8rem; }
  .page { padding: 4.5rem 1rem 1rem; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 2rem; }
  .hero-stats { flex-direction: column; gap: 1rem; }
  .comparison-grid { grid-template-columns: 1fr; }
}

/* ═══════ TOAST ═══════ */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.toast {
  background: var(--ink);
  color: var(--chalk);
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-size: 0.875rem;
  animation: slideIn 0.3s ease;
  max-width: 350px;
}
.toast-error { background: var(--danger); }
.toast-success { background: var(--accent-dim); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }