/* ==========================================================================
   MZA TECH ZONE - STANDALONE MODERN STYLESHEET
   Clean, Responsive, Fast & GitHub Pages Ready
   ========================================================================== */

:root {
  --bg-main: #06080d;
  --bg-card: rgba(13, 18, 30, 0.75);
  --bg-card-hover: rgba(18, 25, 42, 0.9);
  --bg-panel: rgba(15, 23, 42, 0.65);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(56, 189, 248, 0.3);
  --border-focus: #0ea5e9;
  
  --primary: #06b6d4;
  --primary-glow: rgba(6, 182, 212, 0.25);
  --primary-hover: #22d3ee;
  --secondary: #3b82f6;
  --accent: #6366f1;
  --success: #10b981;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', var(--font-sans);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  
  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.5);
  --shadow-hover: 0 12px 32px -8px rgba(6, 182, 212, 0.2);
  --shadow-glow: 0 0 25px rgba(6, 182, 212, 0.35);
}

/* Base resets & typography */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-main);
  line-height: 1.6;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.24s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.24s cubic-bezier(0.16, 1, 0.3, 1);
}

body.page-is-exiting {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  body {
    transition: none !important;
    transform: none !important;
  }
}

::selection {
  background: rgba(6, 182, 212, 0.3);
  color: #a5f3fc;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #090d16;
}
::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #334155;
}

/* Typography elements */
h1, h2, h3, h4, h5, h6, .font-display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: #ffffff;
  line-height: 1.15;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

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

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

@media (min-width: 640px) {
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

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

@media (min-width: 768px) {
  .section {
    padding-top: 7rem;
    padding-bottom: 7rem;
  }
}

/* Background Grids & Ambient Effects */
.bg-grid-pattern {
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
}

.ambient-glow {
  position: absolute;
  width: 600px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, rgba(59, 130, 246, 0.08) 50%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

/* Glass Panels & Cards */
.glass-panel {
  background: var(--bg-panel);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, #38bdf8 0%, #60a5fa 50%, #a855f7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.gradient-text-cyan {
  background: linear-gradient(135deg, #22d3ee 0%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.badge-cyan {
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #38bdf8;
}

.badge-emerald {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.badge-blue {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #60a5fa;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  white-space: nowrap;
  line-height: 1.25;
}

.btn-primary {
  background: linear-gradient(135deg, #06b6d4 0%, #2563eb 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #22d3ee 0%, #3b82f6 100%);
  box-shadow: 0 6px 20px rgba(6, 182, 212, 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(15, 23, 42, 0.8);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-secondary:hover {
  background: rgba(30, 41, 59, 0.9);
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-outline-cyan {
  background: transparent;
  color: #38bdf8;
  border: 1px solid rgba(6, 182, 212, 0.4);
}

.btn-outline-cyan:hover {
  background: rgba(6, 182, 212, 0.1);
  border-color: #38bdf8;
  color: #ffffff;
}

.btn-whatsapp {
  background: #128c7e;
  color: #ffffff;
}

.btn-whatsapp:hover {
  background: #25d366;
  color: #06080d;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1.0625rem;
  border-radius: var(--radius-lg);
}

/* Top Reading Progress Bar */
#reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #06b6d4, #3b82f6, #8b5cf6);
  z-index: 100;
  width: 0%;
  transition: width 0.1s linear;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(6, 8, 13, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(6, 8, 13, 0.95);
  border-bottom-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.brand-logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 40px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  filter: drop-shadow(0 0 12px rgba(6, 182, 212, 0.25));
  transition: transform var(--transition-fast);
}

.brand-logo-link:hover .brand-logo-img {
  transform: scale(1.03);
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.brand-title span {
  color: #38bdf8;
}

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

@media (min-width: 900px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link:hover {
  color: #ffffff;
}

.nav-link.active {
  color: #38bdf8;
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: #38bdf8;
  border-radius: 2px;
  box-shadow: 0 0 8px #38bdf8;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 260px;
  background: #0d121e;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  list-style: none;
  z-index: 60;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-item a {
  display: block;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.nav-dropdown-item a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #38bdf8;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  cursor: pointer;
}

@media (min-width: 900px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile Drawer */
.mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 85%;
  max-width: 360px;
  background: #090d16;
  border-left: 1px solid var(--border-subtle);
  z-index: 100;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.mobile-drawer.open {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
}

.mobile-drawer-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-link {
  display: block;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  background: rgba(6, 182, 212, 0.1);
  color: #38bdf8;
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.breadcrumbs a {
  color: var(--text-muted);
}

.breadcrumbs a:hover {
  color: #38bdf8;
}

.breadcrumbs span.current {
  color: #ffffff;
  font-weight: 500;
}

/* Value Strip */
.value-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.value-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: rgba(13, 18, 30, 0.5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.value-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #38bdf8;
}

/* Service Card Grid */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.service-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.service-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.service-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.service-icon-box.cyan {
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: #38bdf8;
}

.service-icon-box.emerald {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.service-icon-box.blue {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #60a5fa;
}

.service-list {
  list-style: none;
  margin: 1.25rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.service-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.service-list li svg, .service-list li .check-icon {
  color: #38bdf8;
  flex-shrink: 0;
}

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

.filter-tab {
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  background: rgba(15, 23, 42, 0.8);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tab:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
}

.filter-tab.active {
  background: rgba(6, 182, 212, 0.15);
  color: #38bdf8;
  border-color: #38bdf8;
}

.portfolio-card {
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

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

.portfolio-image-wrapper {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.portfolio-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.portfolio-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.portfolio-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  padding: 0.85rem;
  background: rgba(6, 8, 13, 0.6);
  border-radius: var(--radius-md);
  margin: 1rem 0;
  text-align: center;
}

.metric-val {
  font-size: 1.125rem;
  font-weight: 700;
  color: #38bdf8;
  font-family: var(--font-display);
}

.metric-lbl {
  font-size: 0.725rem;
  color: var(--text-dim);
}

/* Process Steps */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.process-card {
  position: relative;
  padding: 2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.process-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(6, 182, 212, 0.25);
  margin-bottom: 0.75rem;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: rgba(6, 182, 212, 0.35);
}

.faq-question-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  color: #ffffff;
  font-size: 1.0625rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}

.faq-icon {
  transition: transform var(--transition-normal);
  color: #38bdf8;
  font-size: 1.25rem;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.25rem 1.5rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  background: rgba(6, 8, 13, 0.8);
  border: 1px solid var(--border-subtle);
  color: #ffffff;
  font-family: inherit;
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--text-dim);
}

.form-select option {
  background: #0d121e;
  color: #ffffff;
}

/* Interactive Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal-content {
  background: #090d16;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 760px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
}

.modal-overlay.open .modal-content {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  z-index: 10;
}

/* Footer */
.site-footer {
  background: #030407;
  border-top: 1px solid var(--border-subtle);
  padding-top: 5rem;
  padding-bottom: 2.5rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
  margin-bottom: 4rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.footer-links a:hover {
  color: #38bdf8;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-dim);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

/* Back to Top Floating Button */
#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--border-subtle);
  color: #38bdf8;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 40;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#back-to-top:hover {
  background: #0ea5e9;
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
}

/* ==========================================================================
   Scroll Reveal Animations (Intersection Observer - Fade-In-Up)
   ========================================================================== */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              border-color var(--transition-normal),
              box-shadow var(--transition-normal),
              background var(--transition-normal);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Feature list items cascade effect */
.service-list li.reveal-on-scroll,
.feature-list li.reveal-on-scroll {
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-list li.reveal-on-scroll.is-revealed,
.feature-list li.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }

.service-card.reveal-on-scroll.is-revealed:hover,
.process-card.reveal-on-scroll.is-revealed:hover,
.process-step.reveal-on-scroll.is-revealed:hover,
.portfolio-card.reveal-on-scroll.is-revealed:hover,
.glass-card.reveal-on-scroll.is-revealed:hover,
.feature-card.reveal-on-scroll.is-revealed:hover {
  transform: translateY(-4px);
}

@media (prefers-reduced-motion: reduce) {
  .reveal-on-scroll,
  .service-list li.reveal-on-scroll,
  .feature-list li.reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}