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

:root {
  --color-bg: #f8f4f4;
  --color-surface: #ffffff;
  --color-primary: #b91c1c;
  --color-primary-dark: #7f1d1d;
  --color-accent: #dc2626;
  --color-accent-light: #fee2e2;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-success: #059669;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 20px 50px rgba(185, 28, 28, 0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth;
}

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

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 14px 0;
  text-align: center;
  font-size: 0.9rem;
}

.header-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  padding: 6px 16px;
  border-radius: 999px;
  font-weight: 600;
}

.hero {
  padding: 48px 0 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-image-wrap {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image {
  width: 100%;
  max-width: 320px;
  height: auto;
  object-fit: contain;
}

.hero-content h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.25;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.hero-brand {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.hero-tagline {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.hero-features {
  list-style: none;
  margin-bottom: 28px;
}

.hero-features li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 10px;
  font-size: 0.95rem;
}

.hero-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

.cta-banner {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 20px 24px;
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-weight: 600;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.cta-banner a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cta-banner a:hover {
  text-decoration: none;
}

.description {
  padding: 56px 0;
  background: var(--color-surface);
}

.description h2 {
  font-size: 1.75rem;
  color: var(--color-primary-dark);
  margin-bottom: 24px;
  text-align: center;
}

.description-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.desc-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}

.desc-card-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.desc-card h3 {
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.desc-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.description-text {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.form-section {
  padding: 56px 0 64px;
}

.form-section h2 {
  font-size: 1.75rem;
  color: var(--color-primary-dark);
  text-align: center;
  margin-bottom: 8px;
}

.form-section .subtitle {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  font-size: 1.05rem;
}

.form-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

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

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--color-text);
}

.form-group input {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-light);
}

.form-group input.error {
  border-color: #dc2626;
}

.form-error {
  color: #dc2626;
  font-size: 0.8rem;
  margin-top: 6px;
  display: none;
}

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

.btn-submit {
  width: 100%;
  padding: 16px 24px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  margin-top: 8px;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.form-note {
  margin-top: 16px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.5;
}

.rules {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 48px 0;
}

.rules h2 {
  font-size: 1.35rem;
  color: var(--color-primary-dark);
  margin-bottom: 28px;
  text-align: center;
}

.rules-list {
  max-width: 800px;
  margin: 0 auto;
}

.rules-item {
  margin-bottom: 24px;
}

.rules-item:last-child {
  margin-bottom: 0;
}

.rules-item h3 {
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.rules-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 24px 0;
  text-align: center;
  font-size: 0.8rem;
}

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

.thankyou-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 20px;
}

.thankyou-card {
  max-width: 520px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.thankyou-product {
  width: 140px;
  height: auto;
  margin-bottom: 24px;
}

.thankyou-icon {
  width: 72px;
  height: 72px;
  background: #d1fae5;
  color: var(--color-success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 24px;
}

.thankyou-card h1 {
  font-size: 1.75rem;
  color: var(--color-primary-dark);
  margin-bottom: 16px;
}

.thankyou-card p {
  color: var(--color-text-muted);
  margin-bottom: 12px;
  font-size: 1.05rem;
}

.thankyou-name {
  font-weight: 600;
  color: var(--color-primary);
}

.btn-back {
  display: inline-block;
  margin-top: 28px;
  padding: 14px 32px;
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background 0.2s;
}

.btn-back:hover {
  background: var(--color-primary-dark);
}

@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-image-wrap {
    order: -1;
    padding: 24px;
  }

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

  .form-card {
    padding: 28px 24px;
  }
}