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

:root {
  --primary: #6C5CE7;
  --primary-dark: #5A4BD1;
  --primary-light: #A29BFE;
  --bg: #F8F9FC;
  --surface: #FFFFFF;
  --text: #2D3436;
  --text-secondary: #636E72;
  --border: #E0E0E8;
  --success: #00B894;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(108, 92, 231, 0.08);
  --shadow-lg: 0 8px 32px rgba(108, 92, 231, 0.12);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ── */
header {
  text-align: center;
  padding: 48px 0 32px;
}

.logo {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.tagline {
  color: var(--text-secondary);
  margin-top: 4px;
  font-size: 0.95rem;
}

/* ── Hero ── */
.hero {
  text-align: center;
  padding: 32px 0 40px;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.hero p {
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ── FAQ ── */
.faq {
  margin-bottom: 48px;
}

.faq h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 20px;
}

details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

details:hover {
  box-shadow: var(--shadow-lg);
}

details[open] {
  box-shadow: var(--shadow-lg);
}

summary {
  padding: 16px 20px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.975rem;
  transition: color 0.2s ease;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--primary);
  transition: transform 0.2s ease;
  flex-shrink: 0;
  margin-left: 12px;
}

details[open] summary::after {
  content: '−';
}

details[open] summary {
  color: var(--primary);
  border-bottom: 1px solid var(--border);
}

details p,
details ul {
  padding: 16px 20px 0;
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.7;
}

details p:last-child,
details ul:last-child {
  padding-bottom: 16px;
}

details ul {
  padding-left: 36px;
  padding-top: 8px;
}

details li {
  margin-bottom: 6px;
}

/* ── Contact Form ── */
.contact {
  margin-bottom: 48px;
}

.contact h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact > p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 0.975rem;
}

#support-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

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

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 6px;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 0.925rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #B2BEC3;
}

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

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23636E72' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

button[type="submit"] {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 600;
  color: #FFFFFF;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  font-family: inherit;
}

button[type="submit"]:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
}

button[type="submit"]:active {
  transform: translateY(0);
}

.success-message {
  background: var(--surface);
  border: 1px solid var(--success);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}

.success-message p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

/* ── Contact Cards ── */
.contact-alt {
  margin-bottom: 48px;
}

.contact-alt h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.contact-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

.card-icon {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
}

.card a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.card a:hover {
  text-decoration: underline;
}

/* ── Footer ── */
footer {
  text-align: center;
  padding: 32px 0 48px;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer-links {
  margin-top: 8px;
}

.footer-links a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.footer-links a:hover {
  text-decoration: underline;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .container {
    padding: 0 16px;
  }

  header {
    padding: 32px 0 24px;
  }

  .logo {
    font-size: 1.6rem;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

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

  #support-form {
    padding: 20px;
  }

  summary {
    padding: 14px 16px;
    font-size: 0.925rem;
  }

  details p,
  details ul {
    padding: 12px 16px 0;
  }
}