/* =============================================
   MAAMADURAI SMART HOMES - DESIGN SYSTEM
   Premium Interior Design & Smart Home Solutions
   ============================================= */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Primary Colors - Wood & Luxury */
  --primary-wood: #8B5A2B;
  --primary-dark: #2C1810;
  --primary-light: #A67B5B;

  /* Accent Colors */
  --accent-gold: #C5A572;
  --accent-brass: #B8860B;
  --smart-blue: #1E3A5F;
  --smart-teal: #0D7377;

  /* Neutral Colors */
  --neutral-900: #1A1A1A;
  --neutral-800: #2D2D2D;
  --neutral-700: #4A4A4A;
  --neutral-600: #6B6B6B;
  --neutral-500: #8E8E8E;
  --neutral-400: #ABABAB;
  --neutral-300: #C8C8C8;
  --neutral-200: #E5E5E5;
  --neutral-100: #F5F3EF;
  --neutral-50: #FDF8F3;

  /* Semantic Colors */
  --success: #2E7D32;
  --warning: #ED6C02;
  --error: #D32F2F;
  --info: #0288D1;

  /* Gradients */
  --gradient-premium: linear-gradient(135deg, #2C1810 0%, #8B5A2B 100%);
  --gradient-gold: linear-gradient(135deg, #C5A572 0%, #B8860B 100%);
  --gradient-dark: linear-gradient(180deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.3) 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-tamil: 'Noto Sans Tamil', sans-serif;

  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
  --text-5xl: clamp(3rem, 2rem + 5vw, 5rem);

  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Line Heights */
  --leading-tight: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 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-gold: 0 4px 20px rgba(197, 165, 114, 0.3);
  --shadow-premium: 0 20px 40px rgba(44, 24, 16, 0.2);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-blur: blur(20px);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Z-Index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;

  /* Container */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--neutral-800);
  background-color: var(--neutral-50);
  overflow-x: hidden;
}

/* Tamil font styling */
body[lang="ta"],
[lang="ta"] {
  font-family: var(--font-tamil), var(--font-body);
}

/* Tamil font size adjustments - Tamil characters are naturally larger */
html[lang="ta"],
html:lang(ta) {
  font-size: 14px;
}

[lang="ta"] .heading-1,
html[lang="ta"] .heading-1 {
  font-size: clamp(2rem, 1.5rem + 3vw, 3.5rem);
}

[lang="ta"] .heading-2,
html[lang="ta"] .heading-2 {
  font-size: clamp(1.5rem, 1.25rem + 1.5vw, 2.5rem);
}

[lang="ta"] .heading-3,
html[lang="ta"] .heading-3 {
  font-size: clamp(1.25rem, 1rem + 1.25vw, 1.875rem);
}

[lang="ta"] .heading-4,
html[lang="ta"] .heading-4 {
  font-size: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
}

[lang="ta"] .hero-title,
html[lang="ta"] .hero-title {
  font-size: clamp(1.75rem, 1.25rem + 2.5vw, 3rem);
  line-height: 1.3;
}

[lang="ta"] .hero-description,
html[lang="ta"] .hero-description {
  font-size: clamp(0.9rem, 0.85rem + 0.25vw, 1.1rem);
}

[lang="ta"] .section-title,
html[lang="ta"] .section-title {
  font-size: clamp(1.5rem, 1.25rem + 1.25vw, 2.25rem);
}

[lang="ta"] .service-title,
html[lang="ta"] .service-title {
  font-size: clamp(1rem, 0.9rem + 0.5vw, 1.25rem);
}

[lang="ta"] .service-description,
html[lang="ta"] .service-description {
  font-size: 0.875rem;
  line-height: 1.6;
}

[lang="ta"] p,
html[lang="ta"] p {
  font-size: 0.9375rem;
  line-height: 1.7;
}

[lang="ta"] .btn,
html[lang="ta"] .btn {
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
}

[lang="ta"] .nav-link,
html[lang="ta"] .nav-link {
  font-size: 0.875rem;
}

[lang="ta"] .footer-link,
html[lang="ta"] .footer-link,
[lang="ta"] .footer-heading,
html[lang="ta"] .footer-heading {
  font-size: 0.875rem;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
}

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

ul,
ol {
  list-style: none;
}

/* ---------- Typography Classes ---------- */
.heading-1 {
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
}

.heading-2 {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: -0.01em;
}

.heading-3 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
}

.heading-4 {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
}

.heading-5 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--font-medium);
  line-height: var(--leading-normal);
}

.body-large {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
}

.body-small {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.caption {
  font-size: var(--text-xs);
  line-height: var(--leading-normal);
  color: var(--neutral-600);
}

/* ---------- Layout Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

.section {
  padding: var(--space-16) 0;
}

@media (min-width: 768px) {
  .section {
    padding: var(--space-24) 0;
  }
}

.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-2 {
  gap: var(--space-2);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

.gap-8 {
  gap: var(--space-8);
}

.grid {
  display: grid;
}

.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);
}

@media (min-width: 768px) {
  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 1024px) {
  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* ---------- Component Classes ---------- */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

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

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

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

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

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(197, 165, 114, 0.4);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn-icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: var(--radius-full);
}

/* Cards */
.card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

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

.card-body {
  padding: var(--space-6);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-gold {
  background: var(--accent-gold);
  color: var(--primary-dark);
}

.badge-smart {
  background: var(--smart-blue);
  color: white;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--neutral-700);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  background: white;
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-wood);
  box-shadow: 0 0 0 3px rgba(139, 90, 43, 0.1);
}

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

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-tag {
  display: inline-block;
  margin-bottom: var(--space-4);
  color: var(--accent-gold);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.section-title {
  color: var(--primary-dark);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  max-width: 600px;
  margin: 0 auto;
  color: var(--neutral-600);
  font-size: var(--text-lg);
}

/* Decorative Elements */
.divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
  margin: var(--space-4) auto;
}

.overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-dark);
}

/* ---------- Animation Classes ---------- */
.animate-fade-in {
  animation: fadeIn 0.6s ease forwards;
}

.animate-slide-up {
  animation: slideUp 0.6s ease forwards;
}

.animate-scale-in {
  animation: scaleIn 0.5s ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Scroll reveal classes */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

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

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

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

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

.text-gold {
  color: var(--accent-gold);
}

.text-white {
  color: white;
}

.text-muted {
  color: var(--neutral-600);
}

.bg-dark {
  background-color: var(--primary-dark);
}

.bg-light {
  background-color: var(--neutral-100);
}

.bg-cream {
  background-color: var(--neutral-50);
}

.relative {
  position: relative;
}

.absolute {
  position: absolute;
}

.fixed {
  position: fixed;
}

.hidden {
  display: none;
}

.block {
  display: block;
}

.inline-block {
  display: inline-block;
}

.overflow-hidden {
  overflow: hidden;
}

.w-full {
  width: 100%;
}

.h-full {
  height: 100%;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}