/*
Theme Name: PCHabits App Store
Theme URI: https://pchabits.com
Description: A modern, distinctive theme for selling small applications with email validation and registration
Version: 1.0
Author: PCHabits
Text Domain: pchabits
*/

/* ============================================
   CSS VARIABLES & DESIGN TOKENS
   ============================================ */
:root {
  /* Color Palette */
  --color-primary: #2563EB;
  --color-navy: #1E293B;
  --color-background: #E1E8EF;
  --color-accent: #F97316;
  --color-success: #10B981;
  --color-white: #FFFFFF;
  --color-gray-100: #F1F5F9;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E1;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  
  /* Typography */
  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Layout */
  --container-max: 1280px;
  --container-narrow: 900px;
  --border-radius: 12px;
  --border-radius-lg: 16px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.3);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-navy);
  background: var(--color-background);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-navy);
  margin-bottom: var(--space-md);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.5rem; }

p {
  margin-bottom: var(--space-md);
  color: var(--color-gray-700);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--color-accent);
}

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

/* ============================================
   LAYOUT UTILITIES
   ============================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  background: linear-gradient(135deg, #F5F7FA 0%, #E8ECF1 100%);
  padding: 2.5rem 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  animation: slideDown 0.5s ease;
  border-bottom: 1px solid rgba(37, 99, 235, 0.1);
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.site-logo .logo-image {
  height: 100px;
  width: auto;
  display: block;
}

.site-logo:hover {
  transform: scale(1.02);
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  align-items: center;
}

.main-nav a {
  color: var(--color-gray-700);
  font-weight: 500;
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  padding: var(--space-xs) 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s ease;
}

.main-nav a:hover::after {
  width: 100%;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
  background: linear-gradient(135deg, var(--color-navy) 0%, #0f172a 100%);
  color: var(--color-white);
  padding: var(--space-3xl) 0;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(249, 115, 22, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  animation: fadeInUp 0.8s ease;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-section h1 {
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-section p {
  font-size: 1.25rem;
  color: var(--color-gray-300);
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-cta {
  animation: fadeInUp 0.8s ease 0.6s both;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

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

.btn-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-accent:hover {
  background: #ea580c;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}

.btn-success {
  background: var(--color-success);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  font-size: 1.1rem;
  padding: 1.25rem 2.5rem;
}

.btn-success:hover {
  background: #059669;
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  color: var(--color-white);
}

/* ============================================
   APP GRID
   ============================================ */
.apps-section {
  padding: var(--space-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  animation: fadeInUp 0.8s ease;
}

.section-subtitle {
  color: var(--color-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.app-card {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.6s ease both;
}

.app-card:nth-child(1) { animation-delay: 0.1s; }
.app-card:nth-child(2) { animation-delay: 0.2s; }
.app-card:nth-child(3) { animation-delay: 0.3s; }
.app-card:nth-child(4) { animation-delay: 0.4s; }
.app-card:nth-child(5) { animation-delay: 0.5s; }
.app-card:nth-child(6) { animation-delay: 0.6s; }

.app-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.app-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.app-card:hover::before {
  transform: scaleX(1);
}

.app-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-lg);
  transition: transform 0.3s ease;
}

.app-card:hover .app-icon {
  transform: rotate(5deg) scale(1.05);
}

.app-card h3 {
  margin-bottom: var(--space-sm);
}

.app-description {
  color: var(--color-gray-600);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.app-price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

/* ============================================
   SINGLE APP PAGE
   ============================================ */
.app-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-navy) 100%);
  color: var(--color-white);
  padding: var(--space-2xl) 0;
  position: relative;
  overflow: hidden;
}

.app-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-20px, 20px) rotate(180deg); }
}

.app-hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.app-hero h1 {
  color: var(--color-white);
}

.app-hero p {
  color: var(--color-gray-200);
  font-size: 1.1rem;
}

.app-hero-price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-white);
  margin: var(--space-lg) 0;
  font-family: var(--font-display);
}

.app-hero-visual {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  font-size: 8rem;
}

.app-features {
  padding: var(--space-3xl) 0;
  background: var(--color-white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.feature-item {
  padding: var(--space-lg);
  border-left: 4px solid var(--color-primary);
  background: var(--color-gray-100);
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
}

.feature-item:hover {
  transform: translateX(8px);
  background: var(--color-white);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.feature-item h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

/* ============================================
   PURCHASE SECTION
   ============================================ */
.purchase-section {
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-gray-100) 100%);
  padding: var(--space-3xl) 0;
}

.purchase-box {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.purchase-form {
  margin-top: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-lg);
  text-align: left;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--color-navy);
}

.form-group input {
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
  border: 2px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
  font-family: var(--font-body);
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.validation-message {
  background: var(--color-gray-100);
  border-left: 4px solid var(--color-primary);
  padding: var(--space-md);
  margin-top: var(--space-lg);
  border-radius: var(--border-radius);
  text-align: left;
}

.validation-message.success {
  background: #d1fae5;
  border-left-color: var(--color-success);
}

.validation-message.error {
  background: #fee2e2;
  border-left-color: #ef4444;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--color-navy);
  color: var(--color-gray-300);
  padding: var(--space-2xl) 0 var(--space-lg);
}

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

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

.footer-section a {
  color: var(--color-gray-300);
  display: block;
  margin-bottom: var(--space-sm);
}

.footer-section a:hover {
  color: var(--color-primary);
  padding-left: var(--space-xs);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-gray-600);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
  .app-hero-content {
    grid-template-columns: 1fr;
  }
  
  .main-nav ul {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .apps-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-section {
    padding: var(--space-xl) 0;
  }
  
  .site-logo .logo-image {
    height: 75px;
  }
}

/* ============================================
   ANIMATIONS & TRANSITIONS
   ============================================ */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}

/* Smooth scroll progress indicator */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  z-index: 9999;
  transition: width 0.1s ease;
}