/* ==========================================================================
   Art Dream Works Studio - Master Design System Stylesheet
   Brand Colors: Crimson (#EE3B43), Charcoal Slate (#1E232A), Cyan (#4EA8DE), Teal (#5BC0BE)
   Typography: Plus Jakarta Sans (Headings), Inter (Body)
   ========================================================================== */

:root {
  /* Brand Core Colors */
  --color-primary: #EE3B43;
  --color-primary-hover: #D32F37;
  --color-primary-light: #FFECEE;
  --color-primary-glow: rgba(238, 59, 67, 0.28);
  
  /* Slate & Neutrals */
  --color-charcoal: #1E232A;
  --color-slate-dark: #2D343F;
  --color-slate-body: #475569;
  --color-slate-subtle: #94A3B8;
  --color-border: #E2E8F0;
  --color-border-focus: rgba(238, 59, 67, 0.5);

  /* Backgrounds & Canvas */
  --color-canvas: #F8FAFC;
  --color-surface: #F7F9FB;
  --color-card: #FFFFFF;
  --color-ad-slot: #F1F5F9;

  /* Accent Signals */
  --color-accent-cyan: #4EA8DE;
  --color-accent-teal: #5BC0BE;
  --color-accent-amber: #F59E0B;
  --color-accent-emerald: #10B981;

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: 0 10px 30px -5px rgba(30, 35, 42, 0.05);

  /* Elevation Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 16px -2px rgba(30, 35, 42, 0.06), 0 2px 6px -1px rgba(30, 35, 42, 0.03);
  --shadow-lg: 0 14px 34px -4px rgba(30, 35, 42, 0.08), 0 4px 12px -2px rgba(238, 59, 67, 0.05);
  --shadow-xl: 0 24px 48px -8px rgba(30, 35, 42, 0.12);

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --container-max: 1280px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-canvas);
  color: var(--color-charcoal);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

::selection {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

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

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

@media (max-width: 640px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

.section {
  padding-top: 5rem;
  padding-bottom: 5rem;
  position: relative;
}

.section-sm {
  padding-top: 2rem;
  padding-bottom: 2rem;
}

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

/* Sticky Glassmorphic Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: var(--transition);
}

.site-header.scrolled {
  height: 72px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.header-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-logo {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.brand-meta {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--color-charcoal);
  line-height: 1.2;
}

.brand-sub {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-slate-subtle);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.925rem;
  color: var(--color-slate-body);
  position: relative;
  padding: 0.35rem 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width 0.25s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
  box-shadow: 0 8px 24px -4px var(--color-primary-glow);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -4px var(--color-primary-glow);
  color: #FFFFFF;
}

.btn-secondary {
  background-color: var(--color-charcoal);
  color: #FFFFFF;
}

.btn-secondary:hover {
  background-color: var(--color-slate-dark);
  transform: translateY(-2px);
  color: #FFFFFF;
}

.btn-outline {
  background-color: var(--color-card);
  color: var(--color-charcoal);
  border-color: var(--color-border);
}

.btn-outline:hover {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.95rem 2.25rem;
  font-size: 1.05rem;
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-charcoal);
}

/* Mobile Nav Drawer */
.mobile-drawer {
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background: #FFFFFF;
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  transform: translateY(-120%);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 999;
}

.mobile-drawer.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  list-style: none;
  margin-bottom: 1.5rem;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--color-charcoal);
  display: block;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-link:hover {
  color: var(--color-primary);
  padding-left: 0.5rem;
}

/* Hero Section */
.hero-section {
  padding-top: 8.5rem;
  padding-bottom: 4rem;
  position: relative;
  overflow: hidden;
}

.hero-ambient-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.glow-blob-1 {
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 760px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(78, 168, 222, 0.14) 0%, rgba(238, 59, 67, 0.08) 50%, transparent 80%);
  filter: blur(90px);
}

.glow-blob-2 {
  position: absolute;
  top: 30%;
  left: -5%;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91, 192, 190, 0.12) 0%, transparent 70%);
  filter: blur(80px);
}

.glow-blob-3 {
  position: absolute;
  top: 15%;
  right: -5%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(238, 59, 67, 0.09) 0%, transparent 70%);
  filter: blur(80px);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-badge-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background-color: rgba(238, 59, 67, 0.08);
  border: 1px solid rgba(238, 59, 67, 0.2);
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.775rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.hero-headline {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 3.5rem;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: var(--color-charcoal);
  max-width: 960px;
  margin: 0 auto 1.5rem auto;
  text-align: center;
}

.hero-dynamic-word {
  position: relative;
  display: inline-block;
  color: var(--color-primary);
  white-space: nowrap;
}

.hero-dynamic-word::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  height: 10px;
  background-color: rgba(238, 59, 67, 0.15);
  border-radius: 4px;
  z-index: -1;
}

.typewriter-text {
  display: inline-block;
  transition: opacity 0.25s ease-in-out;
}

.hero-description {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.hero-desc-en {
  font-size: 1.15rem;
  color: var(--color-slate-body);
  line-height: 1.6;
}

.hero-desc-cn {
  font-size: 1rem;
  color: var(--color-slate-subtle);
  line-height: 1.5;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.hero-trust-signals {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
  flex-wrap: wrap;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-slate-subtle);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Hero Visual Showcase Mosaic */
.hero-mosaic {
  margin-top: 3.5rem;
  display: grid;
  grid-template-columns: 8fr 4fr;
  gap: 1.5rem;
  align-items: stretch;
}

.mosaic-main-card {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.mosaic-main-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(238, 59, 67, 0.25);
}

.browser-mock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.browser-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background-color: #EE3B43; }
.dot-yellow { background-color: #F59E0B; }
.dot-green { background-color: #10B981; }

.browser-url-pill {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  color: var(--color-slate-subtle);
  background: var(--color-surface);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
}

.showcase-img-wrap {
  position: relative;
  width: 100%;
  height: 340px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-charcoal);
}

.showcase-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.mosaic-main-card:hover .showcase-img-wrap img {
  transform: scale(1.03);
}

.showcase-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(30, 35, 42, 0.92) 0%, rgba(30, 35, 42, 0.3) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  color: #FFFFFF;
}

.showcase-category {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-teal);
  margin-bottom: 0.35rem;
}

.showcase-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.showcase-snippet {
  font-size: 0.9rem;
  color: #E2E8F0;
  max-width: 600px;
  line-height: 1.5;
}

.mosaic-stats-col {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stat-card {
  flex: 1;
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.stat-tag {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-tag-crimson { color: var(--color-primary); }
.stat-tag-cyan { color: var(--color-accent-cyan); }

.stat-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2.75rem;
  color: var(--color-charcoal);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-slate-body);
  line-height: 1.4;
}

/* Google AdSense Compliant Banner Slots */
.adsense-wrapper {
  width: 100%;
  background-color: var(--color-ad-slot);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.875rem;
  margin: 1.5rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  position: relative;
  overflow: hidden;
}

.ad-compliance-meta {
  width: 100%;
  max-width: 728px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  padding: 0 0.25rem;
}

.ad-label {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-slate-subtle);
}

.ad-choices-link {
  font-size: 0.65rem;
  color: var(--color-slate-subtle);
}

.ad-choices-link:hover {
  color: var(--color-charcoal);
}

.adsense-unit-728x90 {
  width: 100%;
  max-width: 728px;
  min-height: 90px;
  background: var(--color-card);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  border: 1px dashed var(--color-border);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.02);
}

.ad-placeholder-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.ad-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

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

.ad-headline {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-charcoal);
  line-height: 1.2;
}

.ad-subtext {
  font-size: 0.8rem;
  color: var(--color-slate-body);
}

.ad-cta-btn {
  padding: 0.4rem 1rem;
  border-radius: var(--radius-pill);
  background-color: var(--color-charcoal);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.ad-cta-btn:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

/* Section Header Shared */
.section-header {
  margin-bottom: 3.5rem;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2.5rem;
  color: var(--color-charcoal);
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-slate-body);
  max-width: 680px;
  line-height: 1.6;
}

/* Services 6-Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 2rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(238, 59, 67, 0.3);
}

.service-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--color-primary);
  transition: var(--transition);
}

.service-card:hover .service-icon-box {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.service-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-charcoal);
  margin-bottom: 0.75rem;
  transition: var(--transition);
}

.service-card:hover .service-title {
  color: var(--color-primary);
}

.service-body {
  font-size: 0.95rem;
  color: var(--color-slate-body);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.service-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.service-badge {
  font-family: var(--font-heading);
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-subtle);
}

.service-arrow {
  color: var(--color-slate-subtle);
  transition: var(--transition);
}

.service-card:hover .service-arrow {
  color: var(--color-primary);
  transform: translateX(4px);
}

/* Portfolio Filter & Gallery */
.portfolio-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-pill);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-slate-body);
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.tab-btn.active {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: 0 4px 14px -2px var(--color-primary-glow);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.portfolio-card {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(238, 59, 67, 0.25);
}

.portfolio-img-wrap {
  width: 100%;
  height: 280px;
  overflow: hidden;
  position: relative;
  background-color: var(--color-charcoal);
}

.portfolio-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.portfolio-card:hover .portfolio-img-wrap img {
  transform: scale(1.05);
}

.portfolio-info {
  padding: 1.5rem;
}

.portfolio-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-teal);
  margin-bottom: 0.35rem;
}

.portfolio-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-charcoal);
  margin-bottom: 0.5rem;
}

.portfolio-desc {
  font-size: 0.9rem;
  color: var(--color-slate-body);
  line-height: 1.5;
}

/* Our Process 3-Step */
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  position: relative;
}

.process-card {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

.process-num {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 3.5rem;
  line-height: 1;
  color: rgba(238, 59, 67, 0.15);
  margin-bottom: 1rem;
  transition: var(--transition);
}

.process-card:hover .process-num {
  color: var(--color-primary);
}

.process-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-charcoal);
  margin-bottom: 0.75rem;
}

.process-body {
  font-size: 0.95rem;
  color: var(--color-slate-body);
  line-height: 1.6;
}

.process-tags {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-slate-subtle);
  text-transform: uppercase;
}

.process-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

/* Why Art Dream Works (Split Feature Columns) */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.split-card {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.split-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.split-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: rgba(238, 59, 67, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.split-icon-cyan {
  background-color: rgba(78, 168, 222, 0.12);
  color: var(--color-accent-cyan);
}

.split-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--color-charcoal);
}

.split-subtitle {
  font-size: 0.85rem;
  color: var(--color-slate-body);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.feature-box {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
}

.feature-box-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-charcoal);
  margin-bottom: 0.25rem;
}

.feature-box-desc {
  font-size: 0.85rem;
  color: var(--color-slate-body);
  line-height: 1.45;
}

.split-img-box {
  height: 200px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.split-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Interactive Project Scope Estimator */
.estimator-card {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 3rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
}

.estimator-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 2.5rem;
  align-items: center;
}

.estimator-left {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.estimator-panel {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.step-label {
  font-family: var(--font-heading);
  font-size: 0.775rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-slate-body);
  margin-bottom: 0.5rem;
  display: block;
}

.btn-grid-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.btn-grid-horizons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.opt-btn {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  padding: 0.75rem 0.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-charcoal);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.opt-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.opt-btn.active {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px -2px var(--color-primary-glow);
}

.horizon-btn.active {
  background-color: var(--color-charcoal);
  color: #FFFFFF;
  border-color: var(--color-charcoal);
}

.estimator-summary-bar {
  background: var(--color-card);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.summary-details {
  display: flex;
  flex-direction: column;
}

.summary-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-slate-subtle);
}

.summary-value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary);
}

/* Contact & Quote Form */
.contact-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 2.5rem;
}

.contact-info-card {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.contact-method-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: rgba(238, 59, 67, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-method-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-charcoal);
  margin-bottom: 0.2rem;
}

.contact-method-value {
  font-size: 0.9rem;
  color: var(--color-slate-body);
}

.contact-method-value a:hover {
  color: var(--color-primary);
}

.form-card {
  background: var(--color-card);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group-full {
  grid-column: span 2;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--color-charcoal);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  background-color: #FFFFFF;
  color: var(--color-charcoal);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(238, 59, 67, 0.12);
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
}

/* Anti-Spam Security Challenge Container */
.captcha-container {
  grid-column: span 2;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.captcha-prompt {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-charcoal);
}

.captcha-input {
  width: 100px;
  padding: 0.5rem 0.75rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-align: center;
  font-weight: 700;
}

.captcha-input:focus {
  border-color: var(--color-primary);
  outline: none;
}

/* Honeypot hidden input */
.honeypot-field {
  display: none !important;
  visibility: hidden !important;
}

/* FAQ Accordion */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-charcoal);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-icon {
  transition: transform 0.25s ease;
  color: var(--color-slate-subtle);
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.faq-answer {
  padding: 0 1.5rem 1.25rem 1.5rem;
  font-size: 0.95rem;
  color: var(--color-slate-body);
  line-height: 1.6;
}

/* Floating WhatsApp Widget */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 990;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #25D366;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.45);
  transition: var(--transition);
  animation: pulseFloat 3s infinite ease-in-out;
  text-decoration: none;
}

.floating-whatsapp svg {
  width: 34px;
  height: 34px;
  fill: #FFFFFF;
  transition: transform 0.25s ease;
}

.floating-whatsapp:hover {
  transform: translateY(-5px) scale(1.08);
  box-shadow: 0 14px 32px rgba(37, 211, 102, 0.6);
  color: #FFFFFF;
}

.floating-whatsapp:hover svg {
  transform: scale(1.05);
}

.floating-whatsapp::after {
  content: 'Chat with us';
  position: absolute;
  right: 70px;
  background: var(--color-charcoal);
  color: #FFFFFF;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transform: translateX(10px);
  transition: all 0.25s ease;
  pointer-events: none;
  box-shadow: var(--shadow-md);
}

.floating-whatsapp:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

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

/* Modal Dialog */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(30, 35, 42, 0.65);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  padding: 2.25rem;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.25s ease;
}

.modal-overlay.open .modal-content {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: var(--color-surface);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-slate-body);
  transition: var(--transition);
}

.modal-close-btn:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

/* Toast Notifications */
.toast-notice {
  position: fixed;
  top: 100px;
  right: 2rem;
  background: var(--color-charcoal);
  color: #FFFFFF;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 2100;
  transform: translateX(120%);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast-notice.show {
  transform: translateX(0);
  opacity: 1;
}

.toast-notice.success {
  border-left: 4px solid var(--color-accent-emerald);
}

.toast-notice.error {
  border-left: 4px solid var(--color-primary);
}

/* Footer */
.site-footer {
  background-color: #FFFFFF;
  border-top: 1px solid var(--color-border);
  padding-top: 5rem;
  padding-bottom: 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 5fr 2fr 2fr 3fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-charcoal);
  margin-bottom: 1.25rem;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  list-style: none;
}

.footer-nav-link {
  font-size: 0.9rem;
  color: var(--color-slate-body);
}

.footer-nav-link:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

.footer-social-icons {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.social-circle-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-slate-body);
  transition: var(--transition);
}

.social-circle-btn:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-slate-subtle);
  flex-wrap: wrap;
  gap: 1rem;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .split-grid {
    grid-template-columns: 1fr;
  }
  .estimator-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .hero-headline {
    font-size: 2.5rem;
  }
  .nav-links, .header-actions .btn {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .hero-mosaic {
    grid-template-columns: 1fr;
  }
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero-headline {
    font-size: 2rem;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-group-full {
    grid-column: span 1;
  }
  .captcha-container {
    grid-column: span 1;
    flex-direction: column;
    align-items: flex-start;
  }
  .btn-grid-options {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* Floating WhatsApp FAB Icon */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25D366;
  background: linear-gradient(135deg, #25D366, #128C7E);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35), 0 4px 10px rgba(0, 0, 0, 0.15);
  z-index: 9999;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.floating-whatsapp svg {
  width: 34px;
  height: 34px;
  fill: #FFFFFF;
  transition: transform 0.3s ease;
}

.floating-whatsapp:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.5), 0 6px 14px rgba(0, 0, 0, 0.2);
}

.floating-whatsapp:hover svg {
  transform: scale(1.05);
}

.floating-whatsapp::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50%;
  border: 2px solid #25D366;
  opacity: 0.8;
  animation: wa-pulse 2s infinite ease-out;
  pointer-events: none;
}

@keyframes wa-pulse {
  0% {
    transform: scale(1);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.4);
    opacity: 0;
  }
}

@media (max-width: 640px) {
  .floating-whatsapp {
    bottom: 1.25rem;
    right: 1.25rem;
    width: 52px;
    height: 52px;
  }
  .floating-whatsapp svg {
    width: 28px;
    height: 28px;
  }
}