/* ============================================================
   DoAllFloors Marketing Site — Styles
   ============================================================ */

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

:root {
  --crimson-50: #fef2f2;
  --crimson-100: #fee2e2;
  --crimson-200: #fecaca;
  --crimson-300: #fca5a5;
  --crimson-400: #f87171;
  --crimson-500: #ef4444;
  --crimson-600: #b91c1c;
  --crimson-700: #991b1b;
  --crimson-800: #7f1d1d;
  --crimson-900: #450a0a;

  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  --white: #ffffff;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* ============================================================
   Typography
   ============================================================ */

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 700;
  color: var(--gray-900);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.125rem; }

p {
  color: var(--gray-600);
  font-size: 1.125rem;
}

/* ============================================================
   Layout
   ============================================================ */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 96px 0;
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  gap: 8px;
}

.btn-primary {
  background: var(--crimson-600);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--crimson-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(185, 28, 28, 0.3);
}

.btn-secondary {
  background: var(--white);
  color: var(--crimson-600);
  border: 2px solid var(--crimson-600);
}

.btn-secondary:hover {
  background: var(--crimson-50);
  transform: translateY(-1px);
}

.btn-white {
  background: var(--white);
  color: var(--crimson-700);
}

.btn-white:hover {
  background: var(--gray-100);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.125rem;
}

/* ============================================================
   Header / Navigation
   ============================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  z-index: 100;
  transition: box-shadow 0.3s ease;
}

.header.scrolled {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--crimson-700);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--crimson-600);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.2s;
}

.nav a:hover,
.nav a.active {
  color: var(--crimson-600);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-cta .btn {
  padding: 10px 24px;
  font-size: 0.9375rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  margin: 6px 0;
  transition: all 0.3s;
}

/* ============================================================
   Hero
   ============================================================ */

.hero {
  padding: calc(var(--header-height) + 80px) 0 96px;
  background: linear-gradient(135deg, var(--crimson-800) 0%, var(--crimson-600) 50%, var(--crimson-700) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 640px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

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

.hero h1 {
  font-size: 3.5rem;
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 520px;
}

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

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-stat h3 {
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 4px;
}

.hero-stat p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================================
   Features Overview (Home page)
   ============================================================ */

.features-overview {
  background: var(--gray-50);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-header p {
  margin-top: 16px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--white);
  border-radius: 12px;
  padding: 32px;
  border: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: var(--crimson-200);
  box-shadow: 0 8px 24px rgba(185, 28, 28, 0.08);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--crimson-50);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.feature-card h3 {
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 1rem;
  color: var(--gray-500);
}

/* ============================================================
   How It Works
   ============================================================ */

.how-it-works {
  background: var(--white);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  counter-reset: step;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--crimson-600);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 auto 20px;
}

.step h4 {
  margin-bottom: 8px;
}

.step p {
  font-size: 0.9375rem;
  color: var(--gray-500);
}

/* ============================================================
   Social Proof / Testimonial
   ============================================================ */

.social-proof {
  background: var(--gray-900);
  color: var(--white);
}

.social-proof .section-header h2 {
  color: var(--white);
}

.social-proof .section-header p {
  color: var(--gray-400);
}

.testimonial-card {
  background: var(--gray-800);
  border-radius: 12px;
  padding: 32px;
  max-width: 640px;
  margin: 0 auto;
}

.testimonial-card p {
  font-size: 1.125rem;
  color: var(--gray-300);
  font-style: italic;
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  background: var(--crimson-600);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.125rem;
}

.testimonial-author .name {
  font-weight: 600;
  color: var(--white);
}

.testimonial-author .role {
  font-size: 0.875rem;
  color: var(--gray-400);
}

/* ============================================================
   CTA Section
   ============================================================ */

.cta-section {
  background: linear-gradient(135deg, var(--crimson-700), var(--crimson-600));
  text-align: center;
  color: var(--white);
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 480px;
  margin: 0 auto 32px;
}

/* ============================================================
   Features Page — Detail Sections
   ============================================================ */

.feature-detail {
  padding: 80px 0;
}

.feature-detail:nth-child(even) {
  background: var(--gray-50);
}

.feature-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-detail-grid.reverse {
  direction: rtl;
}

.feature-detail-grid.reverse > * {
  direction: ltr;
}

.feature-detail-content h2 {
  margin-bottom: 16px;
}

.feature-detail-content p {
  margin-bottom: 24px;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
  font-size: 1rem;
  color: var(--gray-600);
}

.feature-list li::before {
  content: '✓';
  color: var(--crimson-600);
  font-weight: 700;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.feature-detail-visual {
  background: var(--gray-100);
  border-radius: 12px;
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  font-size: 4rem;
}

/* ============================================================
   Pricing
   ============================================================ */

.pricing-section {
  background: var(--gray-50);
}

.pricing-card {
  background: var(--white);
  border-radius: 16px;
  padding: 48px 40px;
  max-width: 520px;
  margin: 0 auto;
  border: 2px solid var(--crimson-600);
  text-align: center;
  position: relative;
  box-shadow: 0 8px 32px rgba(185, 28, 28, 0.1);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--crimson-600);
  color: var(--white);
  padding: 6px 24px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
}

.pricing-card h3 {
  font-size: 1.75rem;
  margin-bottom: 8px;
  margin-top: 16px;
}

.pricing-card .price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--crimson-600);
  margin: 16px 0;
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--gray-500);
}

.pricing-card > p {
  color: var(--gray-500);
  margin-bottom: 32px;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  font-size: 1rem;
  color: var(--gray-700);
  border-bottom: 1px solid var(--gray-100);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li::before {
  content: '✓';
  color: var(--crimson-600);
  font-weight: 700;
  flex-shrink: 0;
}

/* ============================================================
   Beta Signup Form
   ============================================================ */

.beta-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
}

.beta-form input {
  padding: 14px 16px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.2s;
}

.beta-form input:focus {
  border-color: var(--crimson-500);
  box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.1);
}

.beta-form .btn {
  width: 100%;
}

.form-note {
  font-size: 0.8125rem;
  color: var(--gray-400);
  text-align: center;
}

/* ============================================================
   Contact Page
   ============================================================ */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.contact-info h3 {
  margin-bottom: 24px;
}

.contact-info p {
  margin-bottom: 32px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  background: var(--crimson-50);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-item h4 {
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 0.9375rem;
}

.contact-form {
  background: var(--gray-50);
  border-radius: 12px;
  padding: 40px;
}

.contact-form h3 {
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.2s;
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--crimson-500);
  box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

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

/* ============================================================
   Page Header (inner pages)
   ============================================================ */

.page-header {
  padding: calc(var(--header-height) + 48px) 0 48px;
  background: linear-gradient(135deg, var(--crimson-800), var(--crimson-600));
  color: var(--white);
  text-align: center;
}

.page-header h1 {
  color: var(--white);
  font-size: 2.75rem;
  margin-bottom: 12px;
}

.page-header p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 520px;
  margin: 0 auto;
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .logo {
  color: var(--white);
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--gray-400);
}

.footer h4 {
  color: var(--white);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 0.9375rem;
  color: var(--gray-400);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--gray-800);
  text-align: center;
  font-size: 0.875rem;
}

/* ============================================================
   Success Message (for forms)
   ============================================================ */

.success-message {
  display: none;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  color: #15803d;
  font-weight: 500;
}

.success-message.show {
  display: block;
}

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

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }

  .hero h1 { font-size: 2.5rem; }

  section { padding: 64px 0; }

  .nav {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  /* Mobile nav */
  .nav.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  .nav-cta.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: calc(var(--header-height) + 120px);
    left: 0;
    right: 0;
    background: var(--white);
    padding: 0 24px 24px;
  }

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

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

  .feature-detail-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .feature-detail-grid.reverse {
    direction: ltr;
  }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }
}