/* ============================================================
   RealtyMail Landing Page CSS
   Professional SaaS aesthetic — conversion-focused for real estate agents
   ============================================================ */

/* ── Custom Properties ─────────────────────────────────────── */
:root {
  --color-bg: #0d1117;
  --color-surface: #161b22;
  --color-surface-2: #1c2330;
  --color-border: #2a3444;
  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;
  --color-accent-light: #1d4ed8;
  --color-text: #e6edf3;
  --color-text-muted: #8b949e;
  --color-text-subtle: #484f58;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --radius: 12px;
  --radius-sm: 8px;
  --max-w: 1100px;
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Typography ─────────────────────────────────────────────── */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; letter-spacing: -0.02em; }

/* ── Layout Utilities ──────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navigation ─────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-text);
  text-decoration: none;
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  font-weight: 900;
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-signin {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-signin:hover { color: var(--color-text); text-decoration: none; }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-accent);
  color: white;
  box-shadow: 0 0 0 1px var(--color-accent), 0 4px 14px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 0 0 1px var(--color-accent-hover), 0 4px 20px rgba(59, 130, 246, 0.5);
  text-decoration: none;
  color: white;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-text-subtle);
  text-decoration: none;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
  border-radius: var(--radius);
}

.btn-xl {
  padding: 16px 32px;
  font-size: 1.0625rem;
  border-radius: var(--radius);
}

/* ── Page Wrapper ──────────────────────────────────────────── */
.page-wrapper {
  padding-top: 64px;
}

/* ── Hero Section ──────────────────────────────────────────── */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

.hero-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 6px var(--color-success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  max-width: 820px;
  margin: 0 auto 20px;
  letter-spacing: -0.03em;
}

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

.hero-sub {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.hero-disclaimer {
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
}

.hero-image-wrap {
  margin: 60px auto 0;
  max-width: 900px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 0 80px rgba(59, 130, 246, 0.1), 0 24px 64px rgba(0,0,0,0.4);
}

.hero-image-wrap img {
  width: 100%;
  display: block;
}

/* ── Trust Bar ─────────────────────────────────────────────── */
.trust-bar {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.trust-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.trust-item-icon {
  font-size: 1rem;
}

.trust-item strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ── Features Section ──────────────────────────────────────── */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 56px;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  margin-bottom: 14px;
}

.section-header p {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.15), 0 8px 24px rgba(0,0,0,0.2);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
  font-weight: 700;
}

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

/* ── How It Works ───────────────────────────────────────────── */
.how-it-works {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(16.66% + 20px);
  right: calc(16.66% + 20px);
  height: 1px;
  background: linear-gradient(90deg, var(--color-border) 0%, var(--color-accent) 50%, var(--color-border) 100%);
  opacity: 0.4;
}

.step {
  text-align: center;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
  margin: 0 auto 20px;
  position: relative;
  z-index: 1;
}

.step h3 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.step p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 260px;
  margin: 0 auto;
}

/* ── Social Proof / Testimonials ──────────────────────────── */
.testimonials {
  background: var(--color-bg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.testimonial-stars {
  display: flex;
  gap: 3px;
  margin-bottom: 12px;
  color: var(--color-warning);
  font-size: 0.875rem;
}

.testimonial-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.testimonial-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: white;
}

.testimonial-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.testimonial-role {
  font-size: 0.75rem;
  color: var(--color-text-subtle);
}

/* ── Pricing ───────────────────────────────────────────────── */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 560px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px;
  position: relative;
  overflow: hidden;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), #60a5fa);
}

.pricing-popular {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 6px;
}

.pricing-amount {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.03em;
}

.pricing-period {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.pricing-billed {
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  margin-bottom: 24px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.pricing-features li .check-icon {
  color: var(--color-success);
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-card .btn {
  width: 100%;
  font-size: 1rem;
}

.pricing-trial-note {
  text-align: center;
  margin-top: 16px;
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
}

/* ── CTA Section ───────────────────────────────────────────── */
.cta-section {
  padding: 80px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
}

.cta-section h2 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  margin-bottom: 12px;
}

.cta-section p {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

/* ── Free Trial Form ────────────────────────────────────────── */
.trial-form-wrap {
  max-width: 460px;
  margin: 0 auto;
}

.trial-form {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}

.trial-form input[type="email"] {
  flex: 1;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.9375rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  font-family: inherit;
}

.trial-form input[type="email"]::placeholder {
  color: var(--color-text-subtle);
}

.trial-form input[type="email"]:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.trial-form-submit {
  flex-shrink: 0;
}

.trial-disclaimer {
  font-size: 0.78125rem;
  color: var(--color-text-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.trial-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.875rem;
  color: #f87171;
  margin-bottom: 12px;
  display: none;
}

.trial-success {
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 0.9375rem;
  color: var(--color-success);
  margin-bottom: 12px;
  display: none;
  line-height: 1.5;
}

/* ── FAQ ─────────────────────────────────────────────────────── */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  text-align: left;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.faq-item h4 {
  font-size: 0.9375rem;
  margin-bottom: 8px;
  font-weight: 700;
}

.faq-item p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--color-text); text-decoration: none; }

.footer-legal {
  font-size: 0.78125rem;
  color: var(--color-text-subtle);
}

/* ── Checkout redirect overlay ─────────────────────────────── */
.checkout-redirect {
  display: none;
  text-align: center;
  padding: 20px;
}

.checkout-redirect-inner {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 24px;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

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

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .features-grid,
  .steps-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .steps-grid::before { display: none; }

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

  .trial-form {
    flex-direction: column;
  }

  .trial-form-submit {
    width: 100%;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

  .trust-bar-inner {
    gap: 20px;
  }

  .footer .container {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }
}