/* ==========================================================================
   AiDEV Agency - Modern Design System
   Matches DESIGN NOU Mockups & High-End AI Dev Agency Aesthetic
   ========================================================================== */

:root {
  --primary: #e50914;
  --primary-hover: #c70812;
  --primary-light: #fef2f2;
  --primary-border: #fecaca;
  --primary-glow: rgba(229, 9, 20, 0.2);
  
  --dark-bg: #0b0f19;
  --dark-card: #121826;
  --dark-border: #1e293b;
  
  --text-title: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --surface-white: #ffffff;
  --surface-subtle: #f8fafc;
  --surface-card: #ffffff;
  --border-light: #e2e8f0;
  --border-card: #edf2f7;
  
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 16px -2px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px -4px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 8px 24px -2px var(--primary-glow);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::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: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-body);
  background-color: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Helpers */
.text-primary { color: var(--primary) !important; }
.text-muted { color: var(--text-muted) !important; }
.fw-bold { font-weight: 700; }
.fw-extrabold { font-weight: 800; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-title);
  border-color: var(--border-light);
}

.btn-secondary:hover {
  background-color: var(--surface-subtle);
  border-color: var(--text-title);
  transform: translateY(-2px);
}

.btn-white {
  background-color: #ffffff;
  color: var(--text-title);
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.btn-white:hover {
  background-color: #f8fafc;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.btn-link {
  background: none;
  border: none;
  color: var(--primary);
  padding: 0;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-link:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* Badges */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background-color: var(--surface-subtle);
  border: 1px solid var(--border-light);
  color: var(--text-title);
}

.badge-pill.primary {
  background-color: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-border);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  transition: var(--transition);
}

.site-header .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  display: flex;
  align-items: center;
}

.brand-logo img, .brand-logo svg {
  height: 44px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-body);
  position: relative;
  padding: 6px 0;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-title);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 60px 0 40px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 48px;
}

.hero-content {
  max-width: 620px;
}

.hero-badge-row {
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.4rem;
  line-height: 1.12;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-title .highlight-red {
  color: var(--primary);
  display: block;
}

.hero-subtitle {
  font-size: 1.18rem;
  line-height: 1.6;
  color: var(--text-body);
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-visual-card {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 48px -12px rgba(15, 23, 42, 0.15);
  transition: transform 0.4s ease;
  border: 1px solid var(--border-light);
  background: #ffffff;
}

.hero-visual-card:hover {
  transform: translateY(-6px);
}

.hero-floating-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(15, 23, 42, 0.9);
  color: #ffffff;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-floating-badge .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 10px #22c55e;
}

/* ==========================================================================
   Stats Bar
   ========================================================================== */
.stats-bar {
  padding: 36px 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  background-color: #ffffff;
}

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

.stat-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.stat-item:not(:last-child) {
  border-right: 1px solid var(--border-light);
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-title);
  text-align: left;
}

.stat-label small {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 400;
}

.stat-tagline {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-title);
  letter-spacing: -0.01em;
}

/* ==========================================================================
   Section Header
   ========================================================================== */
.section-header {
  margin-bottom: 48px;
}

.section-header.text-center {
  text-align: center;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-header .section-tag {
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: inline-block;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

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

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-top: 14px;
  line-height: 1.6;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-section {
  padding: 90px 0;
  background-color: var(--surface-subtle);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--surface-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-border);
  box-shadow: var(--shadow-lg);
}

.service-card.ai-highlight {
  border-color: rgba(229, 9, 20, 0.3);
  background: linear-gradient(180deg, #ffffff 0%, #fffcfc 100%);
}

.service-card.ai-highlight::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 30px;
  right: 30px;
  height: 3px;
  background: var(--primary);
  border-radius: 4px;
}

.service-icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background-color: var(--surface-subtle);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 24px;
  transition: var(--transition);
}

.service-card:hover .service-icon-box {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: scale(1.05);
}

.service-badge {
  position: absolute;
  top: 28px;
  right: 28px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background-color: var(--primary-light);
  color: var(--primary);
  letter-spacing: 0.03em;
}

.service-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 12px;
}

.service-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.service-features {
  margin-bottom: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border-card);
}

.service-features li {
  font-size: 0.88rem;
  color: var(--text-body);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.service-features li svg {
  color: var(--primary);
  flex-shrink: 0;
}

.service-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--border-card);
}

.service-price {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-title);
}

.service-arrow-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-title);
  background: var(--surface-subtle);
  transition: var(--transition);
}

.service-card:hover .service-arrow-btn {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateX(4px);
}

/* Option Banner (from mockups) */
.service-option-banner {
  margin-top: 40px;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 24px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  box-shadow: var(--shadow-sm);
}

.service-option-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.service-option-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--surface-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-title);
  border: 1px solid var(--border-light);
}

.service-option-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-title);
}

.service-option-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Portfolio / Selected Projects
   ========================================================================== */
.portfolio-section {
  padding: 90px 0;
  background-color: #ffffff;
}

.portfolio-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 44px;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
}

.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  background-color: #ffffff;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-light);
}

.project-preview {
  background: #f1f5f9;
  overflow: hidden;
  position: relative;
}

.project-preview img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
}

.project-card:hover .project-preview img {
  transform: scale(1.02);
}

.project-body {
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
  border-top: 1px solid var(--border-light);
}

.project-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-title);
  margin-bottom: 4px;
}

.project-category {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.project-arrow-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-title);
  transition: var(--transition);
  background: #ffffff;
}

.project-card:hover .project-arrow-btn {
  background-color: var(--text-title);
  color: #ffffff;
}

/* ==========================================================================
   Interactive AI Project Estimator / Calculator
   ========================================================================== */
.calculator-section {
  padding: 90px 0;
  background: linear-gradient(180deg, var(--surface-subtle) 0%, #ffffff 100%);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.calc-wrapper {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.calc-steps-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
}

.calc-group-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.calc-group-title .step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.calc-options-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}

.calc-option-btn {
  background: var(--surface-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.calc-option-btn.active {
  background: var(--primary-light);
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary);
}

.calc-option-btn .opt-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 4px;
}

.calc-option-btn .opt-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.calc-checkboxes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.calc-check-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--surface-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.calc-check-item:hover {
  border-color: var(--text-title);
}

.calc-check-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.calc-summary-card {
  background: var(--dark-bg);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: sticky;
  top: 100px;
}

.calc-summary-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(229, 9, 20, 0.25);
  color: #ff4d4d;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.calc-estimate-label {
  font-size: 0.9rem;
  color: #94a3b8;
  margin-bottom: 8px;
}

.calc-estimate-price {
  font-size: 2.8rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.calc-estimate-price span {
  font-size: 1rem;
  font-weight: 500;
  color: #94a3b8;
}

.calc-delivery-time {
  font-size: 0.95rem;
  color: #cbd5e1;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.calc-included-list {
  margin-bottom: 30px;
}

.calc-included-list li {
  font-size: 0.88rem;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.calc-included-list li svg {
  color: #22c55e;
  flex-shrink: 0;
}

/* ==========================================================================
   Pricing & Packages
   ========================================================================== */
.pricing-section {
  padding: 90px 0;
  background-color: #ffffff;
}

.pricing-tabs-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: 48px;
}

.pricing-tabs {
  display: inline-flex;
  padding: 6px;
  background-color: var(--surface-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  gap: 6px;
}

.tab-btn {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn.active {
  background-color: #ffffff;
  color: var(--text-title);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.pricing-tab-pane {
  display: none;
}

.pricing-tab-pane.active {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.pricing-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 38px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-border);
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: 0 8px 32px var(--primary-glow);
}

.pricing-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--primary);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: var(--radius-full);
}

.pricing-name {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-title);
  margin-bottom: 6px;
}

.pricing-tagline {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 22px;
  min-height: 42px;
}

.pricing-price-box {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-card);
}

.pricing-amount {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: -0.02em;
  line-height: 1;
}

.pricing-period {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
}

.pricing-features-list {
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features-list li {
  font-size: 0.9rem;
  color: var(--text-body);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  line-height: 1.5;
}

.pricing-features-list li svg {
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 3px;
}

/* ==========================================================================
   Red Ribbon CTA Banner (Exact from Mockups)
   ========================================================================== */
.cta-banner-section {
  background: var(--primary);
  color: #ffffff;
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-banner-title {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.cta-banner-desc {
  font-size: 1.15rem;
  opacity: 0.95;
  max-width: 650px;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
  padding: 90px 0;
  background-color: var(--surface-subtle);
}

.faq-list {
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: var(--primary-border);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  padding: 22px 28px;
  text-align: left;
  background: none;
  border: none;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-title);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--primary-light);
  color: var(--primary);
}

.faq-answer {
  padding: 0 28px 24px 28px;
  font-size: 0.96rem;
  color: var(--text-body);
  line-height: 1.7;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

/* ==========================================================================
   Contact Section & Fast Form
   ========================================================================== */
.contact-section {
  padding: 90px 0;
  background-color: #ffffff;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
}

.contact-info-card {
  background: var(--surface-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 44px;
}

.contact-channel {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 28px;
}

.contact-channel-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-channel-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.contact-channel-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-title);
}

.contact-form-wrapper {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 44px;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 13px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  font-size: 0.95rem;
  color: var(--text-title);
  background-color: var(--surface-subtle);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background-color: #ffffff;
  box-shadow: 0 0 0 4px var(--primary-glow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

/* ==========================================================================
   Site Footer
   ========================================================================== */
.site-footer {
  background-color: var(--dark-bg);
  color: #94a3b8;
  padding: 70px 0 30px;
  border-top: 1px solid #1e293b;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
  margin-top: 18px;
  font-size: 0.92rem;
  line-height: 1.6;
  max-width: 320px;
  color: #94a3b8;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 0.92rem;
  color: #94a3b8;
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.88rem;
  color: #64748b;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-title { font-size: 2.8rem; }
  .services-grid, .pricing-tab-pane.active { grid-template-columns: repeat(2, 1fr); }
  .calc-steps-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    width: 100%;
    background: #ffffff;
    padding: 24px;
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
  }
  .mobile-toggle { display: block; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-content { margin: 0 auto; }
  .hero-actions { justify-content: center; }
  .hero-title { font-size: 2.3rem; }
  .stats-grid { grid-template-columns: 1fr; gap: 20px; }
  .stat-item:not(:last-child) { border-right: none; border-bottom: 1px solid var(--border-light); padding-bottom: 20px; }
  .services-grid, .portfolio-grid, .pricing-tab-pane.active { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row, .calc-options-grid { grid-template-columns: 1fr; }
  .cta-banner-inner { flex-direction: column; text-align: center; }
  .service-option-banner { flex-direction: column; text-align: center; }
  .service-option-left { flex-direction: column; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}