/* ===========================
   SportDat Landing — styles.css
   Mobile-first responsive design
   =========================== */

/* --- Design Tokens --- */
:root {
  --color-primary: #1f3a5f;
  --color-secondary: #2ecc71;
  --color-dark: #1b1e23;
  --color-white: #FFFFFF;
  --color-light: #f5f7fa;
  --color-gray: #6b7280;
  --color-border: #e0e0e0;
  --color-warning: #f59e0b;
  --color-success: #16a34a;
  --color-tertiary: #2c5282;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-body: 17px;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height: 1.6;
  --max-width: 1200px;
  --header-height: 72px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(31, 58, 95, 0.08);
  --shadow-lg: 0 8px 40px rgba(31, 58, 95, 0.12);
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height);
  color: var(--color-dark);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  color: var(--color-dark);
}

h1 {
  font-size: 36px;
  font-weight: var(--font-weight-extrabold);
}

h2 {
  font-size: 28px;
  font-weight: var(--font-weight-bold);
  margin-bottom: 1rem;
}

h3 {
  font-size: 20px;
  font-weight: var(--font-weight-bold);
}

p {
  margin-bottom: 1rem;
  color: var(--color-gray);
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 4rem 0;
}

.section-alt {
  background-color: var(--color-light);
}

.section-dark {
  background-color: var(--color-dark);
  color: var(--color-white);
}

.section-dark h2,
.section-dark h3 {
  color: var(--color-white);
}

.section-dark p {
  color: rgba(255, 255, 255, 0.8);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.section-header p {
  font-size: 18px;
  margin-top: 0.75rem;
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 36px;
  width: auto;
}

.nav-links {
  display: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 15px;
  font-weight: var(--font-weight-medium);
  color: var(--color-gray);
  transition: color var(--transition);
}

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

.header-cta {
  display: none;
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.menu-toggle:hover {
  background: var(--color-light);
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-dark);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 999;
  padding: 2rem 1.5rem;
  flex-direction: column;
  gap: 1.5rem;
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav a {
  font-size: 18px;
  font-weight: var(--font-weight-medium);
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav .btn {
  margin-top: 1rem;
  text-align: center;
}

/* --- Hero --- */
.hero {
  padding: 3rem 0 4rem;
  overflow: hidden;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  text-align: center;
}

.hero-content h1 {
  margin-bottom: 1.25rem;
  color: var(--color-primary);
}

.hero-content .subtitle {
  font-size: 18px;
  color: var(--color-gray);
  margin-bottom: 2rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-ctas {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.hero-note {
  font-size: 14px;
  color: var(--color-gray);
  font-style: italic;
}

.hero-mockup {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 9/16;
  background: linear-gradient(135deg, var(--color-primary), var(--color-tertiary));
  border-radius: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 14px;
  text-align: center;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.hero-mockup::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 24px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 12px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 16px;
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  min-height: 44px;
  min-width: 44px;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-secondary);
  color: var(--color-dark);
  box-shadow: 0 4px 12px rgba(46, 204, 113, 0.3);
}

.btn-primary:hover {
  background: #27ae60;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(46, 204, 113, 0.4);
}

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

.btn-secondary:hover {
  background: var(--color-tertiary);
  transform: translateY(-2px);
}

.btn-outline {
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

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

.btn-white:hover {
  background: var(--color-light);
  transform: translateY(-2px);
}

/* --- Cards --- */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all var(--transition);
}

.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  font-size: 24px;
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 15px;
  margin-bottom: 0;
}

/* --- Timeline --- */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-step {
  position: relative;
  padding-bottom: 2.5rem;
  padding-left: 2rem;
}

.timeline-step:last-child {
  padding-bottom: 0;
}

.timeline-step::before {
  content: attr(data-step);
  position: absolute;
  left: -2rem;
  top: 0;
  width: 32px;
  height: 32px;
  background: var(--color-secondary);
  color: var(--color-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: var(--font-weight-bold);
  z-index: 1;
}

.timeline-step h3 {
  margin-bottom: 0.5rem;
}

.timeline-step p {
  font-size: 15px;
}

/* --- Benefits list --- */
.benefits-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.benefit-item .benefit-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: var(--color-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.benefit-item p {
  margin-bottom: 0;
  font-size: 15px;
}

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  border-radius: 20px;
  font-size: 13px;
  font-weight: var(--font-weight-medium);
}

.badge-pending {
  background: #fef3c7;
  color: #92400e;
}

.badge-community {
  background: #dbeafe;
  color: #1e40af;
}

.badge-club {
  background: #d1fae5;
  color: #065f46;
}

.badge-review {
  background: #ede9fe;
  color: #5b21b6;
}

/* --- Narration examples --- */
.narration-examples {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.narration-bubble {
  background: var(--color-light);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--color-secondary);
  font-size: 15px;
  color: var(--color-dark);
}

/* --- Forms --- */
.form-container {
  max-width: 640px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 15px;
  font-weight: var(--font-weight-medium);
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.form-group label .required {
  color: #dc2626;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-dark);
  transition: border-color var(--transition), box-shadow var(--transition);
  min-height: 44px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(31, 58, 95, 0.1);
}

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

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-group .error-message {
  display: none;
  font-size: 13px;
  color: #dc2626;
  margin-top: 0.375rem;
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: #dc2626;
}

.form-group.has-error .error-message {
  display: block;
}

/* Checkboxes and radios */
.checkbox-group,
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.checkbox-item,
.radio-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
}

.checkbox-item input,
.radio-item input {
  width: 20px;
  height: 20px;
  min-width: 20px;
  min-height: 20px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.checkbox-item label,
.radio-item label {
  margin-bottom: 0;
  cursor: pointer;
}

.privacy-check {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.privacy-check input {
  margin-top: 0.25rem;
  width: 20px;
  height: 20px;
  min-width: 20px;
  accent-color: var(--color-primary);
}

.privacy-check label {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 0;
}

.privacy-check a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Success message */
.form-success {
  display: none;
  text-align: center;
  padding: 3rem 2rem;
  background: var(--color-light);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.form-success.active {
  display: block;
}

.form-success .success-icon {
  width: 64px;
  height: 64px;
  background: var(--color-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
}

.form-success .success-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--color-white);
}

.form-success h3 {
  margin-bottom: 1rem;
  font-size: 24px;
}

.form-success p {
  color: var(--color-gray);
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: 5rem 0;
}

.cta-section h2 {
  margin-bottom: 1rem;
}

.cta-section p {
  font-size: 18px;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 4rem 0 2rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 15px;
}

.footer-links h4 {
  color: var(--color-white);
  font-size: 15px;
  font-weight: var(--font-weight-bold);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0;
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

.footer-legal a:hover {
  color: var(--color-secondary);
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Pilot page specifics --- */
.pilot-includes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.pilot-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--color-white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.pilot-item .check-icon {
  width: 24px;
  height: 24px;
  min-width: 24px;
  background: var(--color-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pilot-item .check-icon svg {
  width: 14px;
  height: 14px;
  stroke: var(--color-white);
}

/* --- 404 page --- */
.error-page {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.5rem;
}

.error-page h1 {
  font-size: 96px;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.error-page p {
  font-size: 18px;
  margin-bottom: 2rem;
}

/* --- Responsive: Tablet (768px) --- */
@media (min-width: 768px) {
  h1 {
    font-size: 44px;
  }

  h2 {
    font-size: 32px;
  }

  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-ctas {
    flex-direction: row;
    justify-content: center;
  }

  .cta-buttons {
    flex-direction: row;
    justify-content: center;
  }

  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }

  .pilot-includes {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* --- Responsive: Desktop (1024px) --- */
@media (min-width: 1024px) {
  h1 {
    font-size: 48px;
  }

  h2 {
    font-size: 36px;
  }

  section {
    padding: 6rem 0;
  }

  .nav-links {
    display: flex;
  }

  .header-cta {
    display: inline-flex;
  }

  .menu-toggle {
    display: none;
  }

  .hero-inner {
    flex-direction: row;
    text-align: left;
  }

  .hero-content {
    text-align: left;
    flex: 1;
  }

  .hero-content .subtitle {
    margin-left: 0;
  }

  .hero-ctas {
    justify-content: flex-start;
  }

  .hero-mockup {
    flex-shrink: 0;
  }

  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .timeline {
    max-width: 640px;
    margin: 0 auto;
  }
}

/* --- Legal content (privacy, terms) --- */
.legal-content {
  max-width: 720px;
  margin: 0 auto;
  padding-bottom: 4rem;
}

.legal-content h2 {
  font-size: 22px;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.legal-content h3 {
  font-size: 18px;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.legal-content p {
  font-size: 16px;
  color: var(--color-dark);
  margin-bottom: 1rem;
}

.legal-content ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-content ul li {
  font-size: 16px;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.legal-content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.legal-content a:hover {
  color: var(--color-tertiary);
}