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

:root {
  --bg: #f8f7f4;
  --surface: #ffffff;
  --primary: #e85d5d;
  --primary-hover: #d44a4a;
  --primary-light: #fde8e8;
  --secondary: #f0b429;
  --secondary-light: #fef3d5;
  --tertiary: #3b82b9;
  --tertiary-light: #dbeafe;
  --text: #1a1a2e;
  --text-secondary: #6b6b8a;
  --border: #e8e6e1;
  --success: #34a853;
  --success-light: #e6f7ee;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --max-width: 1100px;
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(232, 93, 93, 0.35);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

.btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-large {
  padding: 18px 40px;
  font-size: 1.1rem;
}

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

.header {
  padding: 20px 0;
  position: sticky;
  top: 0;
  background: rgba(248, 247, 244, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

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

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--transition);
}

.logo-link:hover {
  opacity: 0.85;
}

.logo-bg {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 200px;
  height: 80px;
  background: var(--primary);
  border-radius: var(--radius-sm);
}

.logo-img {
  display: block;
  width: 180px;
  height: auto;
}

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

.hero {
  padding: 80px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(240, 180, 41, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(232, 93, 93, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--secondary-light);
  color: #8a6a00;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero h1 span {
  color: var(--primary);
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-note {
  margin-top: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ===== Sections ===== */

.section {
  padding: 80px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 48px;
  line-height: 1.7;
}

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

/* ===== How it works ===== */

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

.how-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.how-step {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 20px;
}

.how-step-1 { background: var(--primary); }
.how-step-2 { background: var(--secondary); }
.how-step-3 { background: var(--tertiary); }

.how-card h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.how-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== Formats ===== */

.formats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.format-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.format-card.featured {
  border-color: var(--secondary);
  box-shadow: 0 0 0 1px var(--secondary), var(--shadow);
}

.format-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary);
  color: #8a6a00;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 50px;
  white-space: nowrap;
}

.format-number {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 4px;
}

.format-number.coral { color: var(--primary); }
.format-number.gold { color: var(--secondary); }
.format-number.blue { color: var(--tertiary); }

.format-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.format-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.format-card hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

.format-feature {
  font-size: 0.9rem;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.format-feature svg {
  flex-shrink: 0;
}

/* ===== Free plan highlight ===== */

.highlight-box {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 56px 48px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 2px solid var(--secondary);
  max-width: 700px;
  margin: 0 auto;
}

.highlight-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--secondary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.highlight-box h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.highlight-box p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 28px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* ===== Incentive ===== */

.incentive-box {
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  border-radius: var(--radius);
  padding: 56px 48px;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.incentive-box h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.incentive-box p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 500px;
  margin: 0 auto;
}

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

.footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-brand {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.footer p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-phase2 {
  margin-top: 12px;
  padding: 8px 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ===== Registration page ===== */

.register-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.register-header {
  padding: 24px 0;
}

.register-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.register-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 48px 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  width: 100%;
  max-width: 440px;
  text-align: center;
}

.register-card .logo-link {
  justify-content: center;
}

.logo-bg-lg {
  width: 200px;
  height: 80px;
  border-radius: var(--radius);
}

.logo-bg-lg .logo-img {
  width: 180px;
}

.register-card h1 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.register-card .subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 32px;
  line-height: 1.6;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--bg);
  color: var(--text);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232, 93, 93, 0.15);
  background: var(--surface);
}

.form-input.input-error {
  border-color: var(--primary);
  background: var(--primary-light);
}

.form-input.input-success {
  border-color: var(--success);
  background: var(--success-light);
}

.form-error {
  font-size: 0.82rem;
  color: var(--primary);
  margin-top: 6px;
  display: none;
}

.form-error.visible {
  display: block;
}

.register-card .btn {
  width: 100%;
  justify-content: center;
}

.register-note {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 16px;
  line-height: 1.6;
}

.register-promo {
  margin-top: 24px;
  padding: 16px;
  background: var(--secondary-light);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: #7a5e00;
  line-height: 1.6;
}

.register-promo strong {
  color: #5a4200;
}

.register-success {
  display: none;
}

.register-success.visible {
  display: block;
}

.register-success .success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--success-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.register-success h2 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.register-success p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.register-form.hidden {
  display: none;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
}

.back-link:hover {
  color: var(--primary);
}

/* ===== Confetti decorations (subtle CSS) ===== */

.confetti-dots {
  position: relative;
}

.confetti-dots::before,
.confetti-dots::after {
  position: absolute;
  border-radius: 50%;
  opacity: 0.5;
  pointer-events: none;
}

/* ===== reCAPTCHA verification overlay ===== */

.verify-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 48px 20px;
  text-align: center;
}

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

.verify-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: verifySpin 0.7s linear infinite;
}

.verify-overlay.error p {
  color: var(--primary);
}

.verify-overlay.error .verify-spinner {
  border-top-color: var(--primary);
  animation: none;
  opacity: 0.5;
}

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

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

@media (max-width: 900px) {
  .hero h1 {
    font-size: 2.4rem;
  }

  .how-grid,
  .formats-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .highlight-box,
  .incentive-box {
    padding: 36px 24px;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 60px 0 80px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn-large {
    width: 100%;
    justify-content: center;
  }

  .section {
    padding: 48px 0;
  }

  .section-title {
    font-size: 1.4rem;
  }

  .register-card {
    padding: 32px 24px;
  }

  .register-card h1 {
    font-size: 1.3rem;
  }

  .highlight-box,
  .incentive-box {
    padding: 28px 20px;
  }

  .highlight-box h3,
  .incentive-box h3 {
    font-size: 1.2rem;
  }

  .format-number {
    font-size: 2.5rem;
  }
}