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

:root {
  --color-primary: #dc2626;
  --color-primary-dark: #b91c1c;
  --color-bg: #ffffff;
  --color-bg-alt: #f6f6f7;
  --color-text: #212b36;
  --color-text-light: #637381;
  --color-border: #dfe3e8;
  --color-success: #108043;
  --color-error: #d82c0d;
  --max-width: 960px;
  --header-height: 64px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
}

/* ── Header ───────────────────────────────────────────────────── */
.site-header {
  height: var(--header-height);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.site-header .logo span {
  color: var(--color-primary);
}

.site-header nav {
  margin-left: auto;
  display: flex;
  gap: 24px;
}

.site-header nav a {
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s;
}

.site-header nav a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

/* ── Main Content ─────────────────────────────────────────────── */
.page-content {
  flex: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
}

/* ── Hero ──────────────────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 64px 0 48px;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.hero .tagline {
  font-size: 1.2rem;
  color: var(--color-text-light);
  max-width: 540px;
  margin: 0 auto 32px;
}

.btn {
  display: inline-block;
  padding: 12px 32px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
}

.btn:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
  color: #fff;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ── Steps / How It Works ─────────────────────────────────────── */
.section-title {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 40px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
  margin-bottom: 64px;
}

.step {
  text-align: center;
  padding: 32px 24px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg);
}

.step .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.step p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ── Features ─────────────────────────────────────────────────── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 64px;
}

.feature {
  padding: 24px;
  border-radius: 12px;
  background: var(--color-bg-alt);
}

.feature h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

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

/* ── Prose (privacy policy, etc.) ─────────────────────────────── */
.prose h1 {
  font-size: 2rem;
  margin-bottom: 24px;
}

.prose h2 {
  font-size: 1.35rem;
  margin-top: 32px;
  margin-bottom: 12px;
}

.prose p,
.prose ul {
  margin-bottom: 16px;
  color: var(--color-text-light);
}

.prose ul {
  padding-left: 24px;
}

.prose li {
  margin-bottom: 6px;
}

/* ── Form ──────────────────────────────────────────────────────── */
.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-message {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  margin-bottom: 20px;
  display: none;
}

.form-message.success {
  display: block;
  background: #e3f1df;
  color: var(--color-success);
  border: 1px solid #b3d7a8;
}

.form-message.error {
  display: block;
  background: #fbeae5;
  color: var(--color-error);
  border: 1px solid #f5c6cb;
}

.support-form {
  max-width: 560px;
}

/* ── Footer ───────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.site-footer nav {
  margin-bottom: 8px;
  display: flex;
  justify-content: center;
  gap: 24px;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 640px) {
  .hero h1 {
    font-size: 1.75rem;
  }

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

  .page-content {
    padding: 32px 16px;
  }

  .site-header nav {
    gap: 16px;
  }
}