/* ==========================================================================
   DPA INTERIOR DESIGN CONSULTANTS - DESIGN SYSTEM & MASTER STYLESHEET
   Serving Mumbai, Thane, Vasai, Virar
   ========================================================================== */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

/* --- CSS Variables / Design Tokens --- */
:root {
  /* Color Palette */
  --bg-body: #FAF8F5;
  --bg-surface: #FFFFFF;
  --bg-warm: #F3EFE6;
  --bg-beige: #EAE4D8;
  --bg-dark: #111215;
  --bg-dark-surface: #181A1E;
  --bg-dark-elevated: #22252C;

  --text-main: #16171A;
  --text-muted: #5A5D64;
  --text-subtle: #858890;
  --text-light: #F8F6F2;
  --text-light-muted: #A8A6A0;

  --accent-gold: #C5A880;
  --accent-gold-hover: #B4966E;
  --accent-gold-light: #EFE8DE;
  --accent-gold-subtle: rgba(197, 168, 128, 0.15);
  
  --whatsapp-green: #25D366;
  --whatsapp-dark: #128C7E;
  --whatsapp-hover: #20BA5A;

  --border-light: rgba(22, 23, 26, 0.08);
  --border-medium: rgba(22, 23, 26, 0.16);
  --border-dark: rgba(248, 246, 242, 0.12);
  --border-gold: rgba(197, 168, 128, 0.35);

  /* Typography */
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Elevations & Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.12);
  --shadow-gold: 0 10px 25px rgba(197, 168, 128, 0.25);
  --shadow-dark: 0 20px 40px rgba(0, 0, 0, 0.35);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-normal: 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);

  /* Spacing & Layout */
  --container-max: 1280px;
  --container-narrow: 1040px;
  --header-height: 84px;
  --border-radius-sm: 2px;
  --border-radius-md: 6px;
  --border-radius-lg: 12px;
}

/* --- Global Reset & Box Sizing --- */
*, *::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-body);
  color: var(--text-main);
  line-height: 1.65;
  font-weight: 400;
  overflow-x: hidden;
  position: relative;
}

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

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

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

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

ul, ol {
  list-style: none;
}

/* --- Container & Layout Helpers --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-fluid {
  width: 100%;
  padding-left: 24px;
  padding-right: 24px;
}

.section-spacing {
  padding-top: 100px;
  padding-bottom: 100px;
}

.section-spacing-sm {
  padding-top: 64px;
  padding-bottom: 64px;
}

/* --- Typography System --- */
h1, h2, h3, h4, .font-serif {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.15;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.heading-hero {
  font-size: clamp(2.8rem, 5.5vw, 4.8rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.heading-section {
  font-size: clamp(2.2rem, 3.6vw, 3.2rem);
  line-height: 1.15;
  margin-bottom: 16px;
}

.heading-sub {
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  font-weight: 600;
}

.subheading-lead {
  font-size: clamp(1.05rem, 1.25vw, 1.2rem);
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 680px;
}

.section-header {
  margin-bottom: 56px;
}

.section-header.text-center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-header.text-center .subheading-lead {
  margin-left: auto;
  margin-right: auto;
}

/* Micro Caps Label */
.label-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent-gold);
  margin-bottom: 12px;
}

.label-eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background-color: var(--accent-gold);
}

.label-eyebrow.no-line::before {
  display: none;
}

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

.label-eyebrow.text-light::before {
  background-color: var(--accent-gold);
}

/* Location Pills */
.location-pills {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-light-muted);
}

.location-dot {
  color: var(--accent-gold);
  font-size: 0.75rem;
}

/* --- Action Buttons & CTAs --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
  text-align: center;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  white-space: nowrap;
}

.btn svg {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.btn:hover svg {
  transform: translateX(4px);
}

/* Primary CTA - Gold / Charcoal */
.btn-primary {
  background-color: var(--accent-gold);
  color: #FFFFFF;
  border: 1px solid var(--accent-gold);
  box-shadow: 0 4px 15px rgba(197, 168, 128, 0.3);
}

.btn-primary:hover {
  background-color: var(--accent-gold-hover);
  border-color: var(--accent-gold-hover);
  box-shadow: 0 8px 25px rgba(197, 168, 128, 0.45);
  transform: translateY(-2px);
  color: #FFFFFF;
}

/* Secondary CTA - Outline */
.btn-outline-light {
  background: transparent;
  color: var(--text-light);
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(4px);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #FFFFFF;
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-outline-dark {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-medium);
}

.btn-outline-dark:hover {
  background: var(--text-main);
  color: #FFFFFF;
  border-color: var(--text-main);
  transform: translateY(-2px);
}

/* Dark Solid Button */
.btn-dark {
  background-color: var(--bg-dark);
  color: #FFFFFF;
  border: 1px solid var(--bg-dark);
}

.btn-dark:hover {
  background-color: #000000;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: #FFFFFF;
}

/* WhatsApp CTA Button */
.btn-whatsapp {
  background-color: var(--whatsapp-green);
  color: #FFFFFF;
  border: 1px solid var(--whatsapp-green);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background-color: var(--whatsapp-hover);
  border-color: var(--whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(37, 211, 102, 0.45);
  color: #FFFFFF;
}

/* Minimal Text Link CTA */
.btn-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-main);
  padding: 4px 0;
  position: relative;
}

.btn-link-arrow::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0.35);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.btn-link-arrow:hover::after {
  transform: scaleX(1);
}

.btn-link-arrow svg {
  transition: transform var(--transition-fast);
}

.btn-link-arrow:hover svg {
  transform: translateX(5px);
}

.btn-link-arrow.text-light {
  color: var(--text-light);
}

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

/* Button Group */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

/* --- Section Dark Themes --- */
.bg-dark-section {
  background-color: var(--bg-dark);
  color: var(--text-light);
}

.bg-dark-section h1,
.bg-dark-section h2,
.bg-dark-section h3,
.bg-dark-section h4 {
  color: var(--text-light);
}

.bg-dark-section .subheading-lead {
  color: var(--text-light-muted);
}

.bg-warm-section {
  background-color: var(--bg-warm);
}

/* --- Grid Utilities --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* --- Animations & Keyframes --- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 0 0 14px rgba(37, 211, 102, 0);
  }
}

@keyframes subtleBounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(6px); }
  60% { transform: translateY(3px); }
}

.fade-in {
  animation: fadeIn 0.8s ease forwards;
}

.fade-in-up {
  animation: fadeInUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Scroll reveal utility classes handled by JS */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Responsive adjustments */
@media (max-width: 991px) {
  .section-spacing {
    padding-top: 80px;
    padding-bottom: 80px;
  }
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .section-spacing {
    padding-top: 60px;
    padding-bottom: 60px;
  }
  .btn-group {
    flex-direction: column;
    width: 100%;
  }
  .btn-group .btn {
    width: 100%;
  }
}