/* ==========================================================================
   MeowMD Core Design System & Global Styles
   ========================================================================== */

:root {
  /* Brand Palette */
  --primary: #fe6b5e;
  --primary-hover: #ff7f74;
  --primary-active: #e65649;
  --primary-light: #fff0ee;
  --primary-subtle: rgba(254, 107, 94, 0.12);

  /* Neutrals & Surfaces */
  --bg-app: #fff9f5;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-surface-subtle: #fcf6f2;
  --bg-hover: #fff0ee;
  
  /* Text Colors */
  --text-main: #332b27;
  --text-body: #4a403a;
  --text-muted: #7c6f68;
  --text-light: #a3958d;
  
  /* Borders & Accents */
  --border-color: #fad1cd;
  --border-light: #f5dfdc;
  --border-focus: #fe6b5e;
  
  /* Status Colors */
  --success: #10b981;
  --success-light: #ecfdf5;
  --danger: #ef4444;
  --danger-light: #fef2f2;
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --info: #3b82f6;
  --info-light: #eff6ff;

  /* Typography */
  --font-sans: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  /* Dimensions & Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(74, 64, 58, 0.04);
  --shadow-sm: 0 4px 12px 0 rgba(74, 64, 58, 0.05);
  --shadow-md: 0 10px 30px -4px rgba(74, 64, 58, 0.08);
  --shadow-lg: 0 20px 40px -8px rgba(74, 64, 58, 0.12);
  --shadow-primary: 0 10px 25px -5px rgba(254, 107, 94, 0.35);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 350ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Dark Theme Variables (Activated via data-theme="dark") */
[data-theme="dark"] {
  --bg-app: #1a1614;
  --bg-surface: #241f1c;
  --bg-surface-elevated: #2e2824;
  --bg-surface-subtle: #1f1a18;
  --bg-hover: #332a26;
  
  --text-main: #f5eee9;
  --text-body: #ded4ce;
  --text-muted: #a89a91;
  --text-light: #7c6f68;
  
  --border-color: #423630;
  --border-light: #332924;
  
  --shadow-sm: 0 4px 12px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 30px -4px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 40px -8px rgba(0, 0, 0, 0.6);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-body);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

::selection {
  background-color: var(--primary);
  color: #ffffff;
}

img, svg {
  vertical-align: middle;
  max-width: 100%;
}

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

button, input, textarea, select {
  font: inherit;
  color: inherit;
  outline: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* Global Navigation Bar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 249, 245, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

[data-theme="dark"] .navbar {
  background-color: rgba(26, 22, 20, 0.9);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-main);
  letter-spacing: -0.02em;
  transition: transform var(--transition-bounce);
}

.logo:hover {
  transform: translateY(-1px);
}

.logo-icon {
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-weight: 700;
  font-size: 0.95rem;
}

.nav-link {
  color: var(--text-muted);
  position: relative;
  padding: 0.4rem 0.2rem;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2.5px;
  background-color: var(--primary);
  border-radius: 2px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.15rem;
  background-color: var(--primary);
  color: #ffffff !important;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: var(--shadow-primary);
  transition: transform var(--transition-bounce), background-color var(--transition-fast);
}

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

/* Button Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  text-align: center;
  user-select: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border: 1.5px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background-color: var(--primary-light);
  transform: translateY(-1px);
}

.btn-danger {
  background-color: var(--danger-light);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
  background-color: var(--danger);
  color: #ffffff;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  background-color: transparent;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  color: var(--primary);
  background-color: var(--primary-light);
}

/* Badges & Tags */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

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

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 400px;
  background-color: var(--bg-surface-elevated);
  color: var(--text-main);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  animation: slideInUp 0.3s var(--transition-bounce) forwards;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.toast.toast-hiding {
  opacity: 0;
  transform: translateY(10px);
}

.toast-success i { color: var(--success); }
.toast-danger i { color: var(--danger); }
.toast-info i { color: var(--primary); }

@keyframes slideInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Global Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  padding: 3rem 2rem 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
}

.footer-brand h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 320px;
  line-height: 1.5;
}

.footer-col h5 {
  color: var(--text-main);
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  max-width: 1140px;
  margin: 2.5rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .navbar {
    padding: 0.75rem 1rem;
  }
  .nav-links {
    gap: 1rem;
    font-size: 0.85rem;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}