/* Rebookr Shared Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables - Brand Colors & Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand Colors */
  --primary-light: #52b1b3;
  --primary: #298d90;
  --primary-dark: #1e6d70;
  --secondary: #6cb67e;
  
  /* Primary Alpha Variants */
  --primary-alpha-5: rgba(41, 141, 144, 0.05);
  --primary-alpha-10: rgba(41, 141, 144, 0.1);
  --primary-alpha-15: rgba(41, 141, 144, 0.15);
  --primary-alpha-20: rgba(41, 141, 144, 0.2);
  --primary-alpha-30: rgba(41, 141, 144, 0.3);
  --primary-alpha-40: rgba(41, 141, 144, 0.4);
  
  /* Backgrounds */
  --bg: #f9fafb;
  --bg-subtle: #f0f4f8;
  --bg-gradient: linear-gradient(135deg, #e8f4f8 0%, #f0f4f8 50%, #f5f0f8 100%);
  --card: #ffffff;
  
  /* Text */
  --text: #2f3337;
  --muted: #6e7a8a;
  
  /* Borders & Shadows */
  --border-light: #e0e6eb;
  --border-primary: rgba(41, 141, 144, 0.2);
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.07);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.1);
  --shadow-primary-sm: 0 2px 8px rgba(41, 141, 144, 0.2);
  --shadow-primary: 0 4px 16px rgba(41, 141, 144, 0.25);
  --shadow-primary-md: 0 6px 20px rgba(41, 141, 144, 0.25);
  --shadow-primary-lg: 0 12px 28px rgba(41, 141, 144, 0.35);
  --shadow-primary-hover: 0 8px 24px rgba(41, 141, 144, 0.3);
  
  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-bg-heavy: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-shadow: 0 8px 32px rgba(41, 141, 144, 0.1);
  --glass-blur: blur(12px);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  --gradient-accent: linear-gradient(90deg, var(--primary), var(--primary-light), var(--secondary));
  --gradient-social-proof: linear-gradient(135deg, rgba(41, 141, 144, 0.03) 0%, rgba(108, 182, 126, 0.03) 100%);
  
  /* Status Colors */
  --success: #10b981;
  --success-light: #6cb67e;
  --success-bg: rgba(108, 182, 126, 0.15);
  --success-alpha-10: rgba(16, 185, 129, 0.1);
  --success-alpha-20: rgba(16, 185, 129, 0.2);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --danger-alpha-20: rgba(239, 68, 68, 0.2);
  --warning: #f59e0b;
  --warning-dark: #d97706;
  --warning-shadow: 0 12px 28px rgba(245, 158, 11, 0.4);
  
  /* Spacing */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 50px;
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s ease;
}

/* --------------------------------------------------------------------------
   Base Reset & Typography
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  color: var(--text);
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

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

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

/* Buttons should keep white text on hover */
a.cta-btn,
a.cta-btn:hover,
a.nav-cta,
a.nav-cta:hover {
  color: #fff;
}

/* --------------------------------------------------------------------------
   Glass Effects
   -------------------------------------------------------------------------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}

.glass-heavy {
  background: var(--glass-bg-heavy);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  padding: 14px 28px;
  font-size: 1em;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary-lg);
}

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

.btn-secondary {
  background: transparent;
  color: var(--text);
  padding: 12px 24px;
  border: 2px solid var(--border-light);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-light);
  color: var(--text);
  padding: 10px 20px;
}

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

.btn-link {
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  font-size: inherit;
  font-weight: 500;
  padding: 0;
  text-decoration: underline;
  transition: var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 24px;
  transition: var(--transition);
}

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

.card-glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* --------------------------------------------------------------------------
   Status Badges
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background: var(--success-bg);
  color: var(--success-light);
}

.badge-danger {
  background: var(--danger-bg);
  color: var(--danger);
}

/* --------------------------------------------------------------------------
   Text Utilities
   -------------------------------------------------------------------------- */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-muted {
  color: var(--muted);
}

.text-primary {
  color: var(--primary);
}

/* --------------------------------------------------------------------------
   Loading States
   -------------------------------------------------------------------------- */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-light);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.95); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

.fade-in {
  animation: fadeIn 0.3s ease-out;
}

/* --------------------------------------------------------------------------
   Form Elements
   -------------------------------------------------------------------------- */
.input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  background: var(--card);
  color: var(--text);
  transition: var(--transition-fast);
}

.input:hover {
  border-color: rgba(41, 141, 144, 0.4);
}

.input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(41, 141, 144, 0.1);
}

.input::placeholder {
  color: var(--muted);
}

/* --------------------------------------------------------------------------
   Responsive Container
   -------------------------------------------------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-sm {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

@media (max-width: 640px) {
  .container,
  .container-sm {
    padding: 0 16px;
  }
}

/* --------------------------------------------------------------------------
   Top Header / Navigation (Shared)
   -------------------------------------------------------------------------- */
.top-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid rgba(224, 230, 235, 0.6);
  z-index: 1000;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
}

.header-content {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
}

.header-logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

.brand-name {
  font-weight: 700;
  font-size: 1.2em;
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95em;
  transition: var(--transition-fast);
}

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

/* Primary CTA button in nav */
.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  transition: var(--transition) !important;
  box-shadow: var(--shadow-primary-sm);
}

.nav-cta:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary);
}

/* Login link */
.nav-login {
  color: var(--text) !important;
  font-weight: 600;
  padding: 8px 16px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.nav-login:hover {
  border-color: var(--primary);
  color: var(--primary) !important;
  background: var(--primary-alpha-5);
}

/* Account pill (logged-in user) - icon + optional letter */
.account-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  background: var(--primary);
  border: 2px solid var(--primary-alpha-30);
  border-radius: var(--radius-full);
  color: white !important;
  font-weight: 700;
  font-size: 0.95em;
  text-decoration: none;
  transition: var(--transition-fast);
}

.account-pill:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: scale(1.05);
}

.account-pill .account-icon {
  font-size: 1.1em;
  line-height: 1;
}

.account-pill .account-name {
  line-height: 1;
  font-size: 0.9em;
}

/* Logout button */
.logout-btn {
  background: transparent;
  border: 1px solid var(--border-light);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--muted);
  transition: var(--transition-fast);
}

.logout-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: var(--danger-bg);
}

/* Auth state visibility classes */
/* Default: logged OUT state */
.show-when-logged-in {
  display: none !important;
}
.show-when-logged-out {
  display: flex !important;
}
.hide-when-logged-in {
  display: flex !important;
}

/* When logged IN */
body.logged-in .show-when-logged-in {
  display: flex !important;
}
body.logged-in .show-when-logged-out {
  display: none !important;
}
body.logged-in .hide-when-logged-in {
  display: none !important;
}

/* Responsive header */
@media (max-width: 768px) {
  .header-content {
    height: 60px;
    padding: 0 16px;
  }

  .nav-links {
    gap: 8px;
  }

  .nav-links a:not(.nav-cta):not(.nav-login):not(.account-pill) {
    display: none;
  }

  .nav-cta {
    padding: 8px 14px;
    font-size: 0.85em;
    white-space: nowrap;
  }

  .nav-login {
    padding: 6px 12px;
    font-size: 0.85em;
    white-space: nowrap;
  }

  .brand-name {
    font-size: 1.1em;
  }

  .header-logo img {
    width: 36px;
    height: 36px;
  }
}

/* Even smaller screens */
@media (max-width: 480px) {
  .header-content {
    padding: 0 12px;
  }

  .nav-links {
    gap: 6px;
  }

  .nav-cta {
    padding: 6px 10px;
    font-size: 0.8em;
  }

  .nav-login {
    padding: 5px 8px;
    font-size: 0.8em;
  }

  .brand-name {
    font-size: 1em;
  }

  .header-logo img {
    width: 32px;
    height: 32px;
  }

  .header-logo {
    gap: 8px;
  }
}