/* ============================================
   SmartM Wishes - Main Stylesheet
   Modern, responsive design with CSS3 animations
   ============================================ */

/* ============================================
   CSS Variables & Color Scheme
   ============================================ */
:root {
  /* Primary Colors */
  --primary: #6366F1;
  --primary-dark: #4F46E5;
  --primary-light: #818CF8;

  /* Secondary Colors */
  --secondary: #EC4899;
  --secondary-dark: #DB2777;
  --secondary-light: #F472B6;

  /* Accent Colors */
  --accent-purple: #A855F7;
  --accent-blue: #3B82F6;
  --accent-green: #10B981;
  --accent-orange: #F59E0B;

  /* Neutral Colors */
  --white: #FFFFFF;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* Spacing */
  --container-max: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-serif: Georgia, Cambria, 'Times New Roman', Times, serif;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
}

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

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

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--gray-50);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--gray-900);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-sm);
}

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

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

/* ============================================
   Layout Components
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.main-content {
  flex: 1;
  padding: var(--spacing-xl) 0;
}

/* ============================================
   Header & Navigation
   ============================================ */
.site-header {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo a {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  transition: transform var(--transition-fast);
}

.logo a:hover {
  transform: scale(1.05);
  color: var(--gray-900);
}

.logo-emoji {
  font-size: 2rem;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--gray-800);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Main Navigation */
.main-nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

.main-nav a {
  color: var(--gray-700);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius);
  transition: all var(--transition-fast);
}

.main-nav a:hover {
  color: var(--primary);
  background: var(--gray-100);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--white);
  padding: var(--spacing-2xl) 0;
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: var(--white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  opacity: 0.95;
}

.hero-description {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
}

/* Animated Elements in Hero */
.animated-elements {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

.animated-elements span {
  position: absolute;
  font-size: 2rem;
  opacity: 0.6;
  animation-duration: 10s;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in-out;
}

.float-1 { left: 10%; top: 20%; animation-name: float-1; animation-delay: 0s; }
.float-2 { left: 80%; top: 30%; animation-name: float-2; animation-delay: 1s; }
.float-3 { left: 20%; top: 60%; animation-name: float-3; animation-delay: 2s; }
.float-4 { left: 70%; top: 70%; animation-name: float-4; animation-delay: 3s; }
.float-5 { left: 40%; top: 40%; animation-name: float-5; animation-delay: 4s; }
.float-6 { left: 60%; top: 15%; animation-name: float-6; animation-delay: 5s; }
.float-7 { left: 15%; top: 80%; animation-name: float-7; animation-delay: 6s; }
.float-8 { left: 85%; top: 55%; animation-name: float-8; animation-delay: 7s; }

/* ============================================
   Animations
   ============================================ */
@keyframes float-1 {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(20px, -30px) rotate(5deg); }
  50% { transform: translate(-10px, -50px) rotate(-5deg); }
  75% { transform: translate(30px, -20px) rotate(3deg); }
}

@keyframes float-2 {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(-30px, 20px) rotate(-5deg); }
  50% { transform: translate(20px, 40px) rotate(5deg); }
  75% { transform: translate(-20px, 10px) rotate(-3deg); }
}

@keyframes float-3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -40px) scale(1.2); }
}

@keyframes float-4 {
  0%, 100% { transform: translate(0, 0) rotate(0deg); opacity: 0.6; }
  50% { transform: translate(-40px, -30px) rotate(180deg); opacity: 0.9; }
}

@keyframes float-5 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-60px); }
}

@keyframes float-6 {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, 30px) rotate(120deg); }
  66% { transform: translate(-30px, 20px) rotate(240deg); }
}

@keyframes float-7 {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50% { transform: scale(1.3) rotate(180deg); }
}

@keyframes float-8 {
  0%, 100% { transform: translate(0, 0); opacity: 0.6; }
  25% { transform: translate(-25px, -25px); opacity: 0.8; }
  50% { transform: translate(25px, -50px); opacity: 1; }
  75% { transform: translate(-10px, -25px); opacity: 0.8; }
}

/* Pulse animation */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* Fade in animation */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Breadcrumbs
   ============================================ */
.breadcrumb {
  background: var(--white);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--gray-200);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.breadcrumb .separator {
  color: var(--gray-400);
}

.breadcrumb a {
  color: var(--gray-600);
}

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

.breadcrumb [aria-current="page"] {
  color: var(--gray-900);
  font-weight: 500;
}

/* ============================================
   Category Cards Grid
   ============================================ */
.categories-section {
  margin: var(--spacing-xl) 0;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.category-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  text-align: center;
  border: 2px solid transparent;
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.category-icon {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-md);
  animation: pulse 2s ease-in-out infinite;
}

.category-title {
  font-size: 1.25rem;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

.category-description {
  color: var(--gray-600);
  font-size: 0.9375rem;
  margin-bottom: var(--spacing-md);
  flex: 1;
}

.category-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.875rem;
  transition: transform var(--transition-fast);
  display: inline-block;
}

.category-card:hover .category-link {
  transform: translateX(5px);
}

/* ============================================
   Wishes Section
   ============================================ */
.wishes-section {
  margin: var(--spacing-xl) 0;
}

.wishes-intro {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow);
}

.wishes-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.wish-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow);
  transition: all var(--transition-base);
  border-left: 4px solid var(--primary);
  animation: fadeIn 0.5s ease-out;
}

.wish-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(5px);
}

/* Wish tone variations */
.wish-heartfelt { border-left-color: var(--secondary); }
.wish-emotional { border-left-color: var(--accent-purple); }
.wish-funny { border-left-color: var(--accent-orange); }
.wish-formal { border-left-color: var(--accent-blue); }
.wish-casual { border-left-color: var(--accent-green); }

.wish-content {
  margin-bottom: var(--spacing-md);
}

.wish-text {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--gray-800);
  font-style: italic;
  margin-bottom: 0;
}

.wish-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-sm);
}

.wish-tone {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--gray-100);
  color: var(--gray-700);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}

/* Copy Button */
.copy-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 0.5rem 1rem;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.copy-btn:hover {
  background: var(--primary-dark);
  transform: scale(1.05);
}

.copy-btn:active {
  transform: scale(0.98);
}

.copy-icon {
  font-size: 1rem;
}

.copied-text {
  display: none;
}

.copy-btn.copied .copy-text {
  display: none;
}

.copy-btn.copied .copied-text {
  display: inline;
}

.copy-btn.copied {
  background: var(--accent-green);
}

/* ============================================
   Static Content
   ============================================ */
.static-content,
.page-content {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow);
  max-width: 900px;
  margin: 0 auto;
}

.content-article h2 {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 2px solid var(--gray-200);
}

.content-article h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.content-article ul,
.content-article ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.content-article li {
  margin-bottom: var(--spacing-xs);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  margin-top: auto;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
  color: var(--white);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.footer-section h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: var(--spacing-sm);
}

.footer-section p {
  font-size: 0.9375rem;
  line-height: 1.6;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: var(--gray-300);
  transition: color var(--transition-fast);
}

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

.social-links {
  display: flex;
  gap: var(--spacing-sm);
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--gray-800);
  border-radius: var(--radius);
  font-size: 1.25rem;
  transition: all var(--transition-fast);
}

.social-links a:hover {
  background: var(--primary);
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--gray-800);
  font-size: 0.875rem;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-align: center;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: var(--white);
  color: var(--primary);
}

.btn-primary:hover {
  background: var(--gray-100);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--primary);
}

/* ============================================
   Responsive Design
   ============================================ */

/* Tablet */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.25rem; }

  .hero-title { font-size: 2.25rem; }
  .hero-subtitle { font-size: 1.25rem; }

  .categories-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
  }

  .footer-content {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
  }

  .main-content {
    padding: var(--spacing-lg) 0;
  }
}

/* Mobile */
@media (max-width: 640px) {
  :root {
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
  }

  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }

  .mobile-menu-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
  }

  .main-nav.active {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .main-nav a {
    display: block;
    padding: var(--spacing-sm);
  }

  .hero {
    padding: var(--spacing-xl) 0;
  }

  .hero-title {
    font-size: 1.875rem;
  }

  .hero-subtitle {
    font-size: 1.125rem;
  }

  .categories-grid {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .wish-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .copy-btn {
    width: 100%;
    justify-content: center;
  }

  .static-content,
  .page-content {
    padding: var(--spacing-md);
  }

  .animated-elements span {
    font-size: 1.5rem;
  }
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .breadcrumb,
  .hero,
  .copy-btn {
    display: none;
  }

  .wish-card {
    page-break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--gray-300);
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

/* ============================================
   Google AdSense Containers
   ============================================ */
.ad-container {
  margin: 2rem auto;
  text-align: center;
  min-height: 250px;
  max-width: var(--container-max);
  background: var(--gray-100);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  font-size: 0.875rem;
}

.ad-top-banner {
  min-height: 90px;
  margin: 0;
  border-radius: 0;
}

.ad-in-content {
  min-height: 280px;
  margin: var(--spacing-xl) auto;
}

.ad-bottom-content {
  min-height: 250px;
  margin-top: var(--spacing-xl);
}

@media (max-width: 640px) {
  .ad-container {
    min-height: 200px;
    margin: var(--spacing-md) auto;
  }

  .ad-top-banner {
    min-height: 50px;
  }
}

/* Hide ad containers when empty (before AdSense approval) */
.ad-container:empty {
  display: none;
}