/**
 * MedSpa10x Brand Design System
 * Warm taupe, cream, burgundy — elegant serif typography
 * Extracted from brand logo and Canva design system
 */

/* ============================================
   CSS RESET & BASE
   ============================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* ---- Core Brand Colors ---- */
  --brand-taupe: #B5AFA6;
  --brand-cream: #F5F0EB;
  --brand-burgundy: #8B2332;

  /* ---- Backgrounds ---- */
  --bg-dark: #3A3530;
  --bg-dark-alt: #2D2926;
  --bg-medium: #B5AFA6;
  --bg-light: #EDE9E3;
  --bg-surface: #FAF7F4;
  --bg-white: #FFFFFF;

  /* ---- Text ---- */
  --text-primary: #2D2926;
  --text-secondary: #6B6260;
  --text-light: #F5F0EB;
  --text-muted: #9B9590;
  --text-on-dark: #F5F0EB;
  --text-on-burgundy: #FFFFFF;

  /* ---- Accent / Burgundy ---- */
  --burgundy: #8B2332;
  --burgundy-hover: #A12B3C;
  --burgundy-soft: rgba(139, 35, 50, 0.08);
  --burgundy-border: rgba(139, 35, 50, 0.2);

  /* ---- Status Colors ---- */
  --green: #3D7A5A;
  --green-soft: rgba(61, 122, 90, 0.1);
  --red: #B33A3A;
  --red-soft: rgba(179, 58, 58, 0.08);
  --blue: #4A6FA5;
  --blue-soft: rgba(74, 111, 165, 0.1);

  /* ---- Borders & Shadows ---- */
  --border: rgba(45, 41, 38, 0.1);
  --border-light: rgba(45, 41, 38, 0.06);
  --shadow-xs: 0 1px 3px rgba(45, 41, 38, 0.04);
  --shadow-sm: 0 2px 8px rgba(45, 41, 38, 0.06);
  --shadow-md: 0 4px 24px rgba(45, 41, 38, 0.08);
  --shadow-lg: 0 12px 48px rgba(45, 41, 38, 0.12);
  --shadow-xl: 0 20px 60px rgba(45, 41, 38, 0.18);

  /* ---- Radius ---- */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 50px;

  /* ---- Typography ---- */
  --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* ---- Spacing ---- */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* ---- Transitions ---- */
  --ease: 0.25s ease;
  --ease-slow: 0.4s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

/* ============================================
   NAVIGATION (shared across all pages)
   ============================================ */
.brand-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-dark-alt);
  border-bottom: 1px solid rgba(181, 175, 166, 0.12);
  backdrop-filter: blur(20px);
}

.brand-nav .nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-nav .nav-logo img {
  height: 40px;
  width: auto;
  border-radius: 6px;
}

.brand-nav .nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-on-dark);
  letter-spacing: -0.01em;
}

.brand-nav .nav-logo-text span {
  color: var(--burgundy);
}

.brand-nav .nav-cta {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-on-burgundy);
  background: var(--burgundy);
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-pill);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: all var(--ease);
  border: none;
  cursor: pointer;
}

.brand-nav .nav-cta:hover {
  background: var(--burgundy-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(139, 35, 50, 0.3);
}

.brand-nav .nav-back {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--ease);
}

.brand-nav .nav-back:hover {
  color: var(--text-on-dark);
}

.brand-nav .nav-step {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brand-cream);
  background: rgba(139, 35, 50, 0.2);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--burgundy-border);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: var(--burgundy);
  color: var(--text-on-burgundy);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  padding: 0.9rem 2rem;
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: all var(--ease);
  border: none;
  cursor: pointer;
  letter-spacing: 0.01em;
}

.btn-primary:hover {
  background: var(--burgundy-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(139, 35, 50, 0.25);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-primary svg {
  width: 18px;
  height: 18px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--bg-dark);
  color: var(--text-on-dark);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--ease);
  border: none;
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--bg-dark-alt);
  transform: translateY(-1px);
}

.btn-full {
  width: 100%;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
}

.form-group .hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 0.25rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  background: var(--bg-white);
  transition: border-color var(--ease), box-shadow var(--ease);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--burgundy);
  box-shadow: 0 0 0 3px var(--burgundy-soft);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group textarea {
  min-height: 80px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-divider {
  height: 1px;
  background: var(--border-light);
  margin: 2rem 0;
}

/* ============================================
   SECTION LABELS
   ============================================ */
.section-label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--burgundy);
  margin-bottom: 1rem;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
}

/* ============================================
   FOOTER
   ============================================ */
.brand-footer {
  padding: 2.5rem 2rem;
  background: var(--bg-dark-alt);
  text-align: center;
  border-top: 1px solid rgba(181, 175, 166, 0.08);
}

.brand-footer p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================
   UTILITY
   ============================================ */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(139, 35, 50, 0.2);
  border-top-color: var(--burgundy);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
  margin-right: 0.5rem;
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.error-msg {
  display: none;
  background: var(--red-soft);
  color: var(--red);
  font-size: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

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

/* ============================================
   PENDING PURCHASE BANNER
   ============================================ */
.pending-banner {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--bg-dark-alt);
  border-top: 2px solid var(--burgundy);
  padding: 1.25rem 2rem;
  text-align: center;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.pending-banner.visible {
  display: block;
}

.pending-banner p {
  color: var(--text-on-dark);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.pending-banner .btn-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.pending-banner button {
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-pill);
  border: none;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--ease);
}

.pending-banner .btn-yes {
  background: var(--burgundy);
  color: var(--text-on-burgundy);
}

.pending-banner .btn-yes:hover {
  background: var(--burgundy-hover);
}

.pending-banner .btn-no {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.pending-banner .btn-no:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 640px) {
  .brand-nav {
    padding: 0.85rem 1.25rem;
  }

  .brand-nav .nav-logo img {
    height: 32px;
  }

  .brand-nav .nav-logo-text {
    font-size: 1.1rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 1.75rem;
  }
}