/* ========================================
   TAILORING SHOP - MAIN CSS
   Design System & Core Styles
   ======================================== */

/* ========== CSS CUSTOM PROPERTIES ========== */
:root {
  /* Color Palette - Warm Tailoring Theme */
  --color-primary: #8B1538;        /* Deep Burgundy */
  --color-primary-light: #A64253;
  --color-primary-dark: #6B0F2A;
  
  --color-secondary: #D4AF37;      /* Gold */
  --color-secondary-light: #E8C968;
  --color-secondary-dark: #B8941F;
  
  --color-accent: #6B4E8A;         /* Deep Purple */
  --color-accent-light: #8B6AA8;
  --color-accent-dark: #4E3666;
  
  --color-neutral-100: #FAF9F6;    /* Cream */
  --color-neutral-200: #F0EDE6;
  --color-neutral-300: #D4D1C9;
  --color-neutral-400: #9B9890;
  --color-neutral-500: #6B6860;
  --color-neutral-600: #4A4741;
  --color-neutral-700: #2D2B28;
  --color-neutral-800: #1A1916;
  --color-neutral-900: #0D0C0B;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
  --gradient-hero: linear-gradient(135deg, rgba(139, 21, 56, 0.95) 0%, rgba(107, 78, 138, 0.95) 100%);
  --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  
  /* Typography */
  --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  --font-size-6xl: 3.75rem;     /* 60px */
  
  /* Spacing */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  --spacing-4xl: 6rem;     /* 96px */
  
  /* Borders & Radius */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 1rem;       /* 16px */
  --radius-xl: 1.5rem;     /* 24px */
  --radius-full: 9999px;
  
  /* 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), 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);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 20px rgba(212, 175, 55, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 400ms ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* ========== RESET & BASE STYLES ========== */
*, *::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-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-neutral-800);
  background-color: var(--color-neutral-100);
  overflow-x: hidden;
}

/* Selection */
::selection {
  background-color: var(--color-primary);
  color: var(--color-neutral-100);
}

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

h1 {
  font-size: var(--font-size-5xl);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-4xl);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-neutral-600);
}

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

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

/* ========== LAYOUT CONTAINERS ========== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-4xl) 0;
}

.section-sm {
  padding: var(--spacing-2xl) 0;
}

/* ========== GRID SYSTEM ========== */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.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 var(--transition-slow), height var(--transition-slow);
}

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

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

.btn-primary:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--gradient-secondary);
  color: var(--color-neutral-900);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

/* ========== CARDS ========== */
.card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.card-glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.card-gradient {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
}

/* ========== NAVIGATION ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
}

.nav-logo {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
  align-items: center;
}

.nav-link {
  color: var(--color-neutral-700);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 80%;
}

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  width: 24px;
  height: 3px;
  background: var(--color-neutral-800);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

/* ========== HERO SECTION ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
  color: white;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><path d="M10 10 L90 90 M90 10 L10 90" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></svg>');
  background-size: 100px 100px;
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: var(--spacing-2xl);
}

.hero h1 {
  color: white;
  font-size: var(--font-size-6xl);
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 1s ease-out;
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-2xl);
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.4s both;
}

/* ========== FORMS ========== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-neutral-700);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-md);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  color: var(--color-neutral-800);
  background: white;
  border: 2px solid var(--color-neutral-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 21, 56, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ========== FOOTER ========== */
.footer {
  background: var(--color-neutral-900);
  color: var(--color-neutral-300);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-neutral-700);
  color: var(--color-neutral-400);
}

/* ========== UTILITY CLASSES ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

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

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 1024px) {
  :root {
    --font-size-6xl: 3rem;
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
  }
  
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-6xl: 2.5rem;
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 100%;
    max-width: 300px;
    height: calc(100vh - 70px);
    background: white;
    flex-direction: column;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    transition: right var(--transition-slow);
    align-items: flex-start;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  .hero-cta {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
}