/* ============================================
   PitchKit — Global Styles
   Dark theme. Space Grotesk + Instrument Serif.
   ============================================ */

:root {
  --bg-primary: #08080c;
  --bg-secondary: #0f0f15;
  --bg-card: #13131a;
  --bg-elevated: #1a1a24;
  --border: #1e1e2a;
  --border-hover: #2a2a3a;
  --text-primary: #f0f0f5;
  --text-secondary: #8a8a9a;
  --text-muted: #55556a;
  --accent: #22c55e;
  --accent-hover: #16a34a;
  --accent-glow: rgba(34, 197, 94, 0.15);
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 10px;
  --radius-lg: 16px;
  --font-display: 'Instrument Serif', serif;
  --font-body: 'Space Grotesk', sans-serif;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

/* ============================================
   Auth Pages (Login / Signup)
   ============================================ */

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-primary);
  background-image: radial-gradient(ellipse at 50% 0%, rgba(34, 197, 94, 0.06) 0%, transparent 60%);
}

.auth-container {
  width: 100%;
  max-width: 400px;
  padding: 2.5rem;
  margin: 1rem;
}

.auth-logo {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.auth-logo span {
  color: var(--accent);
}

.auth-container h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.auth-subtitle {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.auth-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-group input {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input::placeholder {
  color: var(--text-muted);
}

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

.btn-primary {
  background: var(--accent);
  color: #000;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: -0.01em;
  margin-top: 0.5rem;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.auth-switch {
  margin-top: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-align: center;
}

/* ============================================
   Landing Page
   ============================================ */

.landing-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  font-family: var(--font-body);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-cta {
  background: var(--accent) !important;
  color: #000 !important;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  transition: all var(--transition) !important;
}

.nav-cta:hover {
  background: var(--accent-hover) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* Hero */

.hero {
  text-align: center;
  padding: 6rem 2rem 4rem;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.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-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: #000;
  padding: 0.9rem 2rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  letter-spacing: -0.01em;
}

.hero-cta:hover {
  background: var(--accent-hover);
  color: #000;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.hero-cta svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition);
}

.hero-cta:hover svg {
  transform: translateX(3px);
}

/* How It Works */

.section {
  padding: 5rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 400;
  margin-bottom: 3rem;
  letter-spacing: -0.01em;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
}

.step-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent-glow);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 10px;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.step-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.step-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Email Preview Section */

.email-preview-section {
  padding: 4rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.email-preview {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.email-preview-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.email-preview-header .dots {
  display: flex;
  gap: 6px;
}

.email-preview-header .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-hover);
}

.email-preview-header .dot:first-child { background: #ef4444; }
.email-preview-header .dot:nth-child(2) { background: #f59e0b; }
.email-preview-header .dot:nth-child(3) { background: #22c55e; }

.email-preview-header span {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.email-preview-body {
  padding: 2rem;
}

.email-preview-body .field {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.email-preview-body .field-label {
  color: var(--text-muted);
  min-width: 60px;
}

.email-preview-body .field-value {
  color: var(--text-secondary);
}

.email-preview-body .divider {
  height: 1px;
  background: var(--border);
  margin: 1.25rem 0;
}

.email-preview-body .email-content {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}

.email-preview-body .email-content .highlight {
  color: var(--accent);
  font-weight: 500;
}

/* Pricing */

.pricing-section {
  padding: 5rem 2rem;
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.pricing-badge {
  display: inline-block;
  background: var(--accent-glow);
  color: var(--accent);
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.pricing-price {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.25rem;
}

.pricing-price span {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.pricing-desc {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 2rem;
}

.pricing-features li {
  padding: 0.6rem 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.pricing-features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
}

.pricing-cta {
  display: block;
  width: 100%;
  background: var(--accent);
  color: #000;
  padding: 0.9rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  transition: all var(--transition);
}

.pricing-cta:hover {
  background: var(--accent-hover);
  color: #000;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

/* Footer */

.landing-footer {
  text-align: center;
  padding: 3rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ============================================
   App Dashboard
   ============================================ */

.app-layout {
  display: flex;
  min-height: 100vh;
}

.app-sidebar {
  width: 250px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.sidebar-logo {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo span {
  color: var(--accent);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
}

.sidebar-link:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.sidebar-link.active {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.sidebar-link svg {
  width: 18px;
  height: 18px;
  opacity: 0.7;
}

.sidebar-user {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.sidebar-user-email {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-user-plan {
  display: inline-block;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.sidebar-logout {
  display: block;
  color: var(--text-muted) !important;
  font-size: 0.85rem;
  padding: 0.5rem 0;
  transition: color var(--transition) !important;
}

.sidebar-logout:hover {
  color: var(--danger) !important;
}

.app-main {
  flex: 1;
  padding: 2rem 3rem;
  overflow-y: auto;
}

.app-header {
  margin-bottom: 2.5rem;
}

.app-header h1 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.app-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition);
}

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

.stat-card .stat-label {
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Generator placeholder card */

.generator-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  text-align: center;
  border-style: dashed;
}

.generator-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.generator-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 400px;
  margin: 0 auto;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .landing-nav {
    padding: 1rem;
  }

  .hero {
    padding: 3rem 1.5rem 2rem;
  }

  .nav-links a:not(.nav-cta) {
    display: none;
  }

  .app-layout {
    flex-direction: column;
  }

  .app-sidebar {
    width: 100%;
    flex-direction: row;
    align-items: center;
    padding: 0.75rem 1rem;
    overflow-x: auto;
    gap: 0.5rem;
  }

  .sidebar-logo {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
    margin-right: 1rem;
    white-space: nowrap;
  }

  .sidebar-nav {
    flex-direction: row;
    gap: 0.25rem;
  }

  .sidebar-user {
    display: none;
  }

  .app-main {
    padding: 1.5rem;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

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