/* ============================================
   OPUS CONSULTANTS — Core Design System
   Premium Construction Consultancy Website
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors */
  --color-bg: #0A1424;
  --color-surface: #111F33;
  --color-surface-light: #192A42;
  --color-surface-hover: #223652;
  --color-primary: #6F90D4;
  --color-primary-light: #B6C9F0;
  --color-primary-dark: #213E80;
  --color-text: #F5F5F2;
  --color-text-muted: #9BA3AC;
  --color-text-dim: #5A636D;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-light: rgba(255, 255, 255, 0.12);
  --color-glass: rgba(10, 20, 36, 0.92);
  --color-glass-light: rgba(17, 31, 51, 0.85);
  --color-overlay: rgba(10, 20, 36, 0.85);
  --color-success: #4ADE80;
  --color-error: #F87171;
  --color-white: #FFFFFF;

  /* Typography */
  --font-heading: 'Space Grotesk', 'Manrope', sans-serif;
  --font-body: 'Inter', 'Manrope', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Font Sizes */
  --fs-display: clamp(3.2rem, 7vw, 7.5rem);
  --fs-h1: clamp(2.4rem, 5vw, 5rem);
  --fs-h2: clamp(2rem, 3.5vw, 3.5rem);
  --fs-h3: clamp(1.4rem, 2.5vw, 2rem);
  --fs-h4: clamp(1.1rem, 1.5vw, 1.4rem);
  --fs-body: clamp(0.95rem, 1.1vw, 1.1rem);
  --fs-small: clamp(0.8rem, 0.9vw, 0.9rem);
  --fs-xs: clamp(0.7rem, 0.75vw, 0.78rem);
  --fs-counter: clamp(3rem, 6vw, 5.5rem);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;
  --space-section: clamp(5rem, 10vw, 10rem);

  /* Layout */
  --max-width: 1400px;
  --nav-height: 80px;

  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-smooth: cubic-bezier(0.25, 0.1, 0.25, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.4s;
  --duration-slow: 0.7s;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(79, 112, 181, 0.18);
}

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

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

html.lenis,
html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

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

body.loading {
  overflow: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

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

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-surface-light);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-dark);
}

/* ---------- Typography ---------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h1 {
  font-size: var(--fs-h1);
}

h2 {
  font-size: var(--fs-h2);
}

h3 {
  font-size: var(--fs-h3);
}

h4 {
  font-size: var(--fs-h4);
}

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

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.eyebrow::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--color-primary);
}

.section-heading {
  font-size: var(--fs-h2);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.section-subtext {
  font-size: var(--fs-body);
  color: var(--color-text-muted);
  max-width: 540px;
  line-height: 1.7;
}

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

section {
  position: relative;
  padding: var(--space-section) 0;
}

.section-header {
  margin-bottom: var(--space-2xl);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 1rem 2rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--color-primary-light);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-primary .btn-arrow {
  transition: transform var(--duration-normal) var(--ease-out);
}

.btn-primary:hover .btn-arrow {
  transform: translateX(4px);
}

.btn-outline {
  border: 1px solid var(--color-border-light);
  color: var(--color-text);
  backdrop-filter: blur(4px);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(93, 126, 188, 0.06);
}

.btn-text {
  padding: 0;
  gap: 0.5rem;
  color: var(--color-primary);
  font-weight: 500;
}

.btn-text:hover {
  gap: 0.75rem;
}

.btn-arrow {
  font-size: 1.2em;
  transition: transform var(--duration-normal) var(--ease-out);
}

/* ---------- Custom Cursor ---------- */
.cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease-out),
    height 0.3s var(--ease-out),
    background 0.3s var(--ease-out);
  mix-blend-mode: difference;
}

.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(93, 126, 188, 0.4);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.4s var(--ease-out),
    height 0.4s var(--ease-out),
    border-color 0.4s var(--ease-out),
    background 0.4s var(--ease-out);
}

.cursor-label {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 10001;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  opacity: 0;
  transition: opacity 0.3s var(--ease-out);
  white-space: nowrap;
}

body.cursor-hover .cursor-dot {
  width: 4px;
  height: 4px;
}

body.cursor-hover .cursor-ring {
  width: 60px;
  height: 60px;
  border-color: var(--color-primary);
  background: rgba(93, 126, 188, 0.05);
}

body.cursor-view .cursor-label {
  opacity: 1;
}

body.cursor-view .cursor-ring {
  width: 80px;
  height: 80px;
  background: rgba(93, 126, 188, 0.08);
  border-color: var(--color-primary);
}

/* Hide custom cursor on touch / mobile */
@media (hover: none),
(pointer: coarse) {

  .cursor-dot,
  .cursor-ring,
  .cursor-label {
    display: none !important;
  }
}

/* ---------- Loading Screen ---------- */
.loader {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #112542, #0a1424 65%, #152b49);
  z-index: 100000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  transition: opacity 0.6s var(--ease-out),
    visibility 0.6s var(--ease-out);
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader[hidden] {
  display: none;
}

.loader-logo {
  text-align: center;
}

.loader-logo .logo-main {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-text);
}

.loader-logo .logo-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-top: 0.5rem;
}

.loader-progress {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.loader-bar {
  width: 200px;
  height: 1px;
  background: var(--color-border);
  position: relative;
  overflow: hidden;
}

.loader-bar-fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0%;
  background: var(--color-primary);
  transition: width 0.1s linear;
}

.loader-count {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  min-width: 36px;
}

/* Architectural lines during loading */
.loader-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.loader-lines .line {
  position: absolute;
  background: var(--color-border);
}

.loader-lines .line-h {
  height: 1px;
  width: 0;
  left: 0;
}

.loader-lines .line-v {
  width: 1px;
  height: 0;
  top: 0;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: #fff;
  color: #14233b;
  box-shadow: 0 4px 18px rgba(10, 20, 36, 0.12);
  transition: background var(--duration-slow) var(--ease-smooth),
    border-color var(--duration-slow) var(--ease-smooth),
    backdrop-filter var(--duration-slow) var(--ease-smooth);
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid rgba(20, 35, 59, 0.12);
}

.nav-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-md);
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 1001;
}

.nav-logo-mark {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
}

.nav-logo-wordmark {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-logo-main {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  line-height: 1;
  color: #14233b;
}

.nav-logo-sub {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
  line-height: 1;
  margin-top: 3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
  justify-self: center;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #34445f;
  position: relative;
  transition: color var(--duration-fast) var(--ease-smooth);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--duration-normal) var(--ease-out);
}

.nav-link:hover,
.nav-link.active {
  color: #14233b;
}

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

.nav-cta {
  position: relative;
  isolation: isolate;
  justify-self: end;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  padding: 0.7rem 1.5rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  background-clip: padding-box;
  transition: transform .2s ease, box-shadow .2s ease, color .2s ease, background-color .2s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-cta:hover {
  background: var(--color-primary);
  color: #fff;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  justify-self: end;
  flex-direction: column;
  gap: 6px;
  width: 28px;
  padding: 4px 0;
  z-index: 1001;
  cursor: pointer;
}

.nav-hamburger span {
  display: block;
  height: 1.5px;
  background: #14233b;
  transition: all var(--duration-normal) var(--ease-out);
  transform-origin: center;
}

.nav-hamburger.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-hamburger.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-slow) var(--ease-out),
    visibility 0s linear var(--duration-slow);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
  transition: opacity var(--duration-slow) var(--ease-out),
    visibility 0s;
}

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-menu-link {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-smooth);
  transform: translateY(30px);
  opacity: 0;
}

.mobile-menu.active .mobile-menu-link {
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu-link:hover {
  color: var(--color-primary);
}

.mobile-menu-footer {
  position: absolute;
  bottom: var(--space-xl);
  left: var(--space-xl);
  right: var(--space-xl);
}

.mobile-menu-cta {
  width: 100%;
  justify-content: center;
}

/* Scroll Progress */
.scroll-progress {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  z-index: 1000;
  transition: width 0.05s linear;
}

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-gradient-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 20, 36, 0.18) 0%, rgba(10, 20, 36, 0.08) 40%, rgba(10, 20, 36, 0.55) 80%, var(--color-bg) 100%),
    linear-gradient(90deg, rgba(10, 20, 36, 0.62) 0%, transparent 55%);
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: var(--space-2xl) 0;
  max-width: 780px;
}

.hero-eyebrow {
  margin-bottom: var(--space-lg);
}

.hero-title {
  font-size: var(--fs-display);
  text-transform: uppercase;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin-bottom: var(--space-lg);
}

.hero-title .line {
  display: block;
  overflow: hidden;
}

.hero-title .line-inner {
  display: block;
  transform: translateY(110%);
}

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

.hero-description {
  font-size: var(--fs-body);
  color: var(--color-text-muted);
  max-width: 520px;
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.hero-scroll-text {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-text-dim);
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {

  0%,
  100% {
    opacity: 0.3;
    transform: scaleY(0.5);
  }

  50% {
    opacity: 1;
    transform: scaleY(1);
  }
}

/* Hero floating labels */
.hero-labels {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero-label {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(93, 126, 188, 0.35);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-label::before {
  content: '';
  width: 6px;
  height: 6px;
  border: 1px solid var(--color-primary);
  border-radius: 1px;
  opacity: 0.4;
}

.hero-label:nth-child(1) {
  top: 25%;
  right: 12%;
}

.hero-label:nth-child(2) {
  top: 40%;
  right: 8%;
}

.hero-label:nth-child(3) {
  top: 55%;
  right: 15%;
}

.hero-label:nth-child(4) {
  bottom: 30%;
  right: 10%;
}

/* Engineering coordinates */
.hero-coords {
  position: absolute;
  bottom: var(--space-xl);
  right: var(--space-lg);
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--color-text-dim);
  text-align: right;
  letter-spacing: 0.05em;
  line-height: 1.6;
}

/* ---------- Metrics Section ---------- */
.metrics {
  position: relative;
  overflow: hidden;
}

.metrics-bg {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image:
    linear-gradient(var(--color-primary) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-primary) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-lg);
  position: relative;
}

.metric-item {
  text-align: center;
  padding: var(--space-xl) var(--space-sm);
  position: relative;
}

.metric-item::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: var(--color-border);
}

.metric-item:last-child::after {
  display: none;
}

.metric-number {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.5vw, 2.5rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.metrics-heading {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.metrics-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metrics {
  padding: clamp(3rem, 5vw, 5rem) 0;
  scroll-margin-top: calc(var(--nav-height) + 1rem);
}

.metrics-heading {
  margin-bottom: var(--space-lg);
}

.metric-item {
  display: flex;
  min-height: 150px;
  flex-direction: column;
  justify-content: center;
  padding: 1.5rem 0.75rem;
  color: inherit;
  text-decoration: none;
  background: rgba(17, 31, 51, 0.78);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: transform var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    background var(--duration-normal) var(--ease-out);
}

.metric-item:hover,
.metric-item:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(111, 144, 212, 0.65);
  background: var(--color-surface-hover);
}

.metric-item::after {
  display: none;
}

.metrics .metric-number {
  font-size: clamp(1.25rem, 2.1vw, 2rem);
}

.software-marquee {
  overflow: hidden;
  margin: var(--space-2xl) calc(-1 * var(--space-lg)) 0;
  border-block: 1px solid var(--color-border);
  background: rgba(10, 20, 36, 0.68);
}

.software-marquee-track {
  display: flex;
  width: max-content;
  animation: softwareMarquee 38s linear infinite;
}

.software-marquee:hover .software-marquee-track,
.software-marquee:focus-within .software-marquee-track {
  animation-play-state: paused;
}

.software-track {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
}

.software-track li {
  flex: 0 0 auto;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

@keyframes softwareMarquee {
  to {
    transform: translateX(-50%);
  }
}

.nav-cta,
.site-quote-link,
.cta-buttons .btn-primary,
.hero-cta a[href*="request-a-quote"],
.mobile-menu-cta {
  animation: quotePulse 2.6s ease-in-out infinite;
}

.nav-cta,
.site-quote-link,
.mobile-menu-cta {
  animation: none;
}

.nav-cta,
.site-quote-link,
.mobile-menu-cta {
  position: relative;
  isolation: isolate;
  background-clip: padding-box;
  transition: transform .2s ease, box-shadow .2s ease, color .2s ease, background-color .2s ease;
}

.nav-cta::before,
.site-quote-link::before,
.mobile-menu-cta::before {
  position: absolute;
  z-index: -2;
  inset: -2px;
  border-radius: inherit;
  background: #4d8dff;
  content: "";
  animation: quoteBorderGlow 2.2s ease-in-out infinite;
}

.nav-cta::after,
.site-quote-link::after,
.mobile-menu-cta::after {
  position: absolute;
  z-index: -1;
  inset: 2px;
  border-radius: 2px;
  background: #fff;
  content: "";
  transition: background-color .2s ease;
}

.nav-cta > *,
.site-quote-link > *,
.mobile-menu-cta > * {
  position: relative;
}

.nav-cta:hover,
.site-quote-link:hover,
.mobile-menu-cta:hover {
  transform: perspective(500px) translateY(-2px) rotateX(5deg);
  box-shadow: 0 8px 18px rgba(33, 62, 128, .28);
}

.nav-cta:hover::after {
  background: var(--color-primary);
}

.mobile-menu-cta::after {
  background: var(--color-primary);
}

.mobile-menu-cta:hover::after {
  background: var(--color-primary-dark);
}

.nav-cta:active,
.site-quote-link:active,
.mobile-menu-cta:active {
  transform: perspective(500px) translateY(1px) scale(.97);
  box-shadow: 0 2px 6px rgba(33, 62, 128, .2);
}

@keyframes quoteBorderGlow {
  0%,
  100% {
    opacity: .55;
    filter: drop-shadow(0 0 1px rgba(77, 141, 255, .25));
  }

  50% {
    opacity: 1;
    filter: drop-shadow(0 0 7px rgba(77, 141, 255, .8));
  }
}

@keyframes quotePulse {
  0%,
  100% {
    box-shadow: 0 0 0 rgba(111, 144, 212, 0);
  }

  50% {
    box-shadow: 0 0 16px rgba(111, 144, 212, 0.35);
  }
}

/* ---------- About Section ---------- */
.about {
  padding: var(--space-section) 0;
  position: relative;
  overflow: hidden;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-visual {
  position: relative;
  height: 600px;
}

.about-visual-canvas {
  position: relative;
  width: 100%;
  height: 100%;
}

.about-img-primary-wrap {
  width: 84%;
  height: 78%;
  position: absolute;
  top: 0;
  left: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.55);
}

.about-img-primary {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
}

.about-visual:hover .about-img-primary {
  transform: scale(1.03);
}

.about-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 12, 18, 0.15) 0%, rgba(8, 12, 18, 0.75) 100%);
}

.about-img-hud {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
}

.hud-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(8, 12, 18, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(93, 126, 188, 0.35);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-primary-light);
  letter-spacing: 0.08em;
}

.hud-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 8px var(--color-primary);
  display: inline-block;
}

.about-img-secondary-wrap {
  width: 58%;
  height: 52%;
  position: absolute;
  bottom: 0;
  right: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--color-primary);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.75);
  z-index: 3;
}

.about-img-secondary {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
}

.about-visual:hover .about-img-secondary {
  transform: scale(1.04);
}

.about-tech-hud {
  position: absolute;
  bottom: 12px;
  left: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 10px;
  background: rgba(8, 12, 18, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
}

.hud-item {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

.about-floating-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: rgba(14, 20, 30, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(93, 126, 188, 0.3);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
  z-index: 4;
  transition: transform 0.3s ease;
}

.about-badge-accuracy {
  top: 45px;
  right: -10px;
}

.about-badge-speed {
  bottom: 25px;
  left: -15px;
}

.about-floating-badge:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
}

.about-badge-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.about-badge-val {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text-bright);
  line-height: 1.2;
}

.about-badge-lbl {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.about-decor-cross {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--color-primary);
  opacity: 0.4;
  pointer-events: none;
}

.about-decor-cross.top-left {
  top: -15px;
  left: -15px;
}

.about-decor-cross.bottom-right {
  bottom: -15px;
  right: -15px;
}

.about-content .eyebrow {
  margin-bottom: var(--space-md);
}

.about-title {
  font-size: var(--fs-h2);
  text-transform: uppercase;
  line-height: 1.15;
  margin-bottom: var(--space-sm);
}

.about-subtitle {
  font-size: var(--fs-h4);
  color: var(--color-primary-light);
  font-weight: 400;
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

.about-text {
  margin-bottom: var(--space-lg);
}

.about-text p {
  margin-bottom: var(--space-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.about-text strong {
  color: var(--color-text-bright);
}

.about-pillars-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: var(--space-lg) 0;
}

.about-pillar {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all 0.25s var(--ease-out);
}

.about-pillar:hover {
  border-color: rgba(93, 126, 188, 0.4);
  transform: translateY(-2px);
  background: var(--color-surface-hover);
}

.about-pillar-icon {
  font-size: 1.3rem;
  line-height: 1;
}

.about-pillar-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-bright);
  margin-bottom: 3px;
  text-transform: uppercase;
}

.about-pillar-desc {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.about-trust-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-xl);
}

.trust-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 5px 12px;
  background: rgba(93, 126, 188, 0.06);
  border: 1px solid rgba(93, 126, 188, 0.2);
  border-radius: 4px;
  color: var(--color-primary-light);
}

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

/* ---------- Services Section (Redesigned) ---------- */
.services {
  padding: var(--space-section) 0;
  background: var(--color-surface);
  position: relative;
}

.services-header {
  margin-bottom: var(--space-2xl);
  text-align: center;
}

.services-header .section-subtext {
  margin: 0 auto;
}

/* Horizontal Service Tabs */
.services-nav-tabs {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 12px;
  margin-bottom: var(--space-xl);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.services-nav-tabs::-webkit-scrollbar {
  display: none;
}

.service-nav-tab {
  flex: 1 1 0;
  min-width: 175px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 16px 18px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  position: relative;
  text-align: left;
}

.service-nav-tab::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 18px;
  right: 18px;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease-out);
}

.service-nav-tab:hover {
  background: var(--color-surface-light);
  border-color: rgba(93, 126, 188, 0.35);
}

.service-nav-tab.active {
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.service-nav-tab.active::after {
  transform: scaleX(1);
}

.tab-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-dim);
  font-weight: 600;
  transition: color 0.2s ease;
}

.service-nav-tab.active .tab-num {
  color: var(--color-primary);
}

.tab-icon {
  font-size: 1.35rem;
}

.tab-label {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-bright);
}

/* Main Interactive Showcase Container */
.services-showcase-container {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.service-showcase-panel {
  display: none;
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
}

.service-showcase-panel.active {
  display: block;
  opacity: 1;
}

.service-showcase-grid {
  display: grid;
  grid-template-columns: 1.05fr 1.35fr;
  min-height: 540px;
}

.service-showcase-visual {
  position: relative;
  overflow: hidden;
  border-right: 1px solid var(--color-border);
}

.service-visual-inner {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 480px;
  overflow: hidden;
}

.service-showcase-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
}

.service-showcase-panel:hover .service-showcase-img {
  transform: scale(1.04);
}

.service-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 12, 18, 0.2) 0%, rgba(8, 12, 18, 0.75) 100%);
}

.service-hud-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(8, 12, 18, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(93, 126, 188, 0.35);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-primary-light);
  letter-spacing: 0.08em;
}

.hud-accent {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 6px var(--color-primary);
}

.service-format-pill {
  position: absolute;
  bottom: 20px;
  left: 20px;
  padding: 6px 14px;
  background: rgba(8, 12, 18, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-text-bright);
  letter-spacing: 0.08em;
}

.service-showcase-content {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.service-eyebrow-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--color-primary);
  letter-spacing: 0.14em;
  margin-bottom: 0.5rem;
}

.service-panel-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2.4vw, 2.2rem);
  text-transform: uppercase;
  color: var(--color-text-bright);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.service-panel-lead {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-lg);
}

.service-features-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: var(--space-xl);
}

.service-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--color-text);
}

.feature-check {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.3;
}

.feature-text {
  line-height: 1.5;
  color: var(--color-text-muted);
}

.feature-text strong {
  color: var(--color-text-bright);
  font-weight: 600;
}

.service-specs-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xl);
}

.service-spec-badge {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.spec-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  color: var(--color-text-dim);
  letter-spacing: 0.08em;
}

.spec-value {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-primary-light);
  font-weight: 500;
}

.service-actions-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

/* 6-Card Quick-Select Grid */
.services-cards-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin-top: var(--space-xl);
}

.service-card-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
}

.service-card-item:hover {
  border-color: rgba(93, 126, 188, 0.45);
  transform: translateY(-3px);
  background: var(--color-surface-hover);
}

.service-card-item.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 16px rgba(93, 126, 188, 0.2);
  background: var(--color-surface-hover);
}

.card-thumb {
  position: relative;
  height: 110px;
  overflow: hidden;
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-out);
}

.service-card-item:hover .card-thumb img {
  transform: scale(1.08);
}

.card-num {
  position: absolute;
  top: 6px;
  right: 6px;
  padding: 2px 7px;
  background: rgba(8, 12, 18, 0.88);
  border: 1px solid rgba(93, 126, 188, 0.3);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-primary);
  font-weight: 600;
}

.card-body {
  padding: 12px 14px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-text-bright);
  margin-bottom: 4px;
  line-height: 1.3;
}

.card-desc {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-link {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
  background: var(--color-primary);
}


/* ---------- 3D Workflow / Build Stages ---------- */
.workflow-3d {
  padding: var(--space-section) 0;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
}

.workflow-3d-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.workflow-stages {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.workflow-stage {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  min-width: 180px;
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
}

.workflow-stage::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background: transparent;
  transition: background var(--duration-normal) var(--ease-out);
}

.workflow-stage.active::before,
.workflow-stage:hover::before {
  background: var(--color-primary);
}

.workflow-stage.active,
.workflow-stage:hover {
  border-color: var(--color-primary);
  background: var(--color-surface-light);
  transform: translateY(-4px);
}

.workflow-stage-num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

.workflow-stage-title {
  font-family: var(--font-heading);
  font-size: var(--fs-h4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.workflow-canvas-container {
  position: relative;
  width: 100%;
  height: 400px;
  margin-bottom: var(--space-2xl);
}

#workflow-canvas {
  width: 100%;
  height: 100%;
}

/* ---------- Process Section ---------- */
.process {
  padding: var(--space-section) 0;
  background: var(--color-surface);
  overflow: hidden;
}

.process-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.process-timeline {
  display: flex;
  gap: 0;
  position: relative;
  padding: var(--space-xl) 0;
}

.process-line {
  position: absolute;
  top: 40px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-border);
}

.process-line-fill {
  height: 100%;
  width: 0%;
  background: var(--color-primary);
  transition: width 0.8s var(--ease-out);
}

.process-step {
  flex: 1;
  text-align: center;
  padding: 0 var(--space-sm);
  position: relative;
}

.process-dot {
  width: 12px;
  height: 12px;
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  border-radius: 50%;
  margin: 0 auto var(--space-lg);
  position: relative;
  z-index: 1;
  transition: all var(--duration-normal) var(--ease-out);
}

.process-step.active .process-dot {
  border-color: var(--color-primary);
  background: var(--color-primary);
  box-shadow: 0 0 15px rgba(93, 126, 188, 0.3);
}

.process-num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

.process-title {
  font-family: var(--font-heading);
  font-size: var(--fs-h4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
  font-weight: 600;
}

.process-desc {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.process-formats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
  margin-top: var(--space-xs);
}

.process-format-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  padding: 0.25rem 0.6rem;
  border: 1px solid rgba(93, 126, 188, 0.2);
  border-radius: var(--radius-sm);
}

/* ---------- Why Opus Section ---------- */
.why-opus {
  padding: var(--space-section) 0;
}

.why-opus-header {
  margin-bottom: var(--space-2xl);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
}

.why-card {
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: transparent;
  transition: background var(--duration-normal) var(--ease-out);
}

.why-card:hover::before {
  background: var(--color-primary);
}

.why-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
  background: var(--color-surface-light);
}

.why-card-num {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
}

.why-card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  color: var(--color-primary);
  font-size: 1.2rem;
}

.why-card-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.why-card-desc {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---------- Technology Section ---------- */
.tech {
  padding: var(--space-section) 0;
  background: var(--color-surface);
  position: relative;
  overflow: hidden;
}

.tech-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.tech-ring-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

.tech-ring {
  position: absolute;
  width: 350px;
  height: 350px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  animation: techRingSpin 30s linear infinite;
}

.tech-ring-inner {
  position: absolute;
  width: 250px;
  height: 250px;
  border: 1px dashed rgba(93, 126, 188, 0.15);
  border-radius: 50%;
  animation: techRingSpin 20s linear infinite reverse;
}

@keyframes techRingSpin {
  to {
    transform: rotate(360deg);
  }
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-lg);
  position: relative;
  z-index: 1;
}

.tech-item {
  padding: var(--space-md) var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  font-family: var(--font-heading);
  font-size: var(--fs-h4);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all var(--duration-normal) var(--ease-out);
}

.tech-item:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* ---------- Projects Section ---------- */
.projects {
  padding: var(--space-section) 0;
}

.projects-header {
  margin-bottom: var(--space-2xl);
}

.projects-categories {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.project-cat-btn {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

.project-cat-btn:hover,
.project-cat-btn.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(93, 126, 188, 0.06);
}

.project-cat-btn:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 3px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.project-card {
  position: relative;
  display: block;
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  cursor: pointer;
  color: inherit;
  text-decoration: none;
  background: var(--color-surface);
  transition: border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.project-card:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 3px;
}

.projects-grid .project-card.is-filtering-out {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .25s ease, transform .25s ease;
  transition-delay: 0s;
  pointer-events: none;
}

.project-card[hidden] {
  display: none;
}

.project-empty-state {
  margin-top: var(--space-md);
  color: var(--color-text-muted);
  text-align: center;
}

.project-card:hover {
  border-color: rgba(93, 126, 188, 0.45);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
}

.project-card-media {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.project-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-card-img {
  transform: scale(1.08);
}

.project-card-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 12, 18, 0.15) 0%, rgba(8, 12, 18, 0.6) 45%, rgba(8, 12, 18, 0.94) 100%);
}

.project-card-grid-decor {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image:
    linear-gradient(var(--color-primary) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-primary) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.project-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-lg);
  z-index: 2;
}

.project-card-type {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-primary-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.project-card-title {
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 600;
  color: var(--color-text-bright);
  line-height: 1.3;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.project-card-meta {
  display: flex;
  gap: 8px;
}

.meta-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  padding: 3px 8px;
  background: rgba(8, 12, 18, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 3px;
  color: var(--color-text-muted);
}

.project-card-overlay {
  position: absolute;
  inset: 0;
  background: rgba(93, 126, 188, 0.14);
  backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}

.project-card:hover .project-card-overlay {
  opacity: 1;
}

.project-card-overlay span {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  background: rgba(8, 12, 18, 0.9);
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

/* ---------- Document Viewer (Enhanced) ---------- */
.doc-viewer {
  padding: var(--space-section) 0;
  background: var(--color-surface);
}

.doc-viewer-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.doc-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.doc-tab {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.7rem 1.6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  background: var(--color-bg);
  transition: all var(--duration-normal) var(--ease-out);
}

.doc-tab.active,
.doc-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(93, 126, 188, 0.08);
}

.doc-preview {
  max-width: 1050px;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
}

.doc-preview-content {
  display: none;
  opacity: 0;
  transition: opacity 0.35s var(--ease-out);
}

.doc-preview-content.active {
  display: block;
  opacity: 1;
}

.doc-preview-split {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  min-height: 480px;
}

.doc-preview-media {
  position: relative;
  overflow: hidden;
  border-right: 1px solid var(--color-border);
}

.doc-preview-img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.doc-preview-media:hover .doc-preview-img {
  transform: scale(1.03);
}

.doc-preview-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 12, 18, 0.1) 0%, rgba(8, 12, 18, 0.65) 100%);
}

.doc-stamp-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  padding: 6px 14px;
  background: rgba(8, 12, 18, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-primary);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-primary-light);
  letter-spacing: 0.08em;
}

.doc-preview-info {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.doc-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-primary);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.doc-preview-title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 2.2vw, 1.9rem);
  text-transform: uppercase;
  font-weight: 700;
  color: var(--color-text-bright);
  margin-bottom: 0.75rem;
  line-height: 1.25;
}

.doc-preview-desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.doc-meta-specs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.meta-spec {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.meta-lbl {
  color: var(--color-text-dim);
}

.meta-val {
  color: var(--color-primary-light);
  font-weight: 500;
}

/* ---------- CTA Section ---------- */
.cta-section {
  padding: var(--space-section) 0;
  position: relative;
  overflow: hidden;
  min-height: 70vh;
  display: flex;
  align-items: center;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: var(--color-bg);
}

.cta-bg-grid {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image:
    linear-gradient(var(--color-primary) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-primary) 1px, transparent 1px);
  background-size: 80px 80px;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-title {
  font-size: var(--fs-h1);
  text-transform: uppercase;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
}

.cta-title .highlight {
  color: var(--color-primary);
}

.cta-desc {
  font-size: var(--fs-body);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Contact Section ---------- */
.contact {
  padding: var(--space-section) 0;
  background: var(--color-surface);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

.contact-info {
  padding-top: var(--space-md);
}

.contact-info .eyebrow {
  margin-bottom: var(--space-md);
}

.contact-title {
  font-size: var(--fs-h2);
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-detail {
  display: flex;
  gap: var(--space-md);
}

.contact-detail-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  font-size: 0.9rem;
}

.contact-detail-label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  margin-bottom: 0.25rem;
}

.contact-detail-value {
  font-size: var(--fs-body);
  color: var(--color-text);
}

.contact-detail-value a {
  color: var(--color-text);
  transition: color var(--duration-fast) var(--ease-smooth);
}

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

/* Contact Form */
.contact-form-wrapper {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.form-label .required {
  color: var(--color-primary);
  margin-left: 2px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--fs-body);
  transition: border-color var(--duration-fast) var(--ease-smooth);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  outline: none;
}

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

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239BA3AC' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-select option {
  background: var(--color-surface);
  color: var(--color-text);
}

.form-error {
  font-size: var(--fs-xs);
  color: var(--color-error);
  margin-top: 0.3rem;
  display: none;
}

.form-group.error .form-input,
.form-group.error .form-textarea,
.form-group.error .form-select {
  border-color: var(--color-error);
}

.form-group.error .form-error {
  display: block;
}

/* File Upload */
.upload-area {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
}

.upload-area:hover,
.upload-area.dragover {
  border-color: var(--color-primary);
  background: rgba(93, 126, 188, 0.03);
}

.upload-area-icon {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.upload-area-text {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

.upload-area-text strong {
  color: var(--color-primary);
}

.upload-area-hint {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-dim);
  margin-top: 0.5rem;
}

.upload-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.upload-file-info {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-top: var(--space-sm);
}

.upload-file-info.visible {
  display: flex;
}

.upload-file-name {
  flex: 1;
  font-size: var(--fs-small);
  color: var(--color-text);
}

.upload-file-size {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-dim);
}

.upload-file-remove {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-text-muted);
  font-size: 1rem;
  transition: color var(--duration-fast) var(--ease-smooth);
  cursor: pointer;
}

.upload-file-remove:hover {
  color: var(--color-error);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-submit {
  margin-top: var(--space-lg);
}

.form-submit .btn {
  width: 100%;
  justify-content: center;
}

/* Form Success */
.form-success {
  display: none;
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
}

.form-success.visible {
  display: block;
}

.form-success-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 2px solid var(--color-success);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  color: var(--color-success);
  font-size: 1.5rem;
}

.form-success-title {
  font-size: var(--fs-h3);
  margin-bottom: var(--space-sm);
}

.form-success-text {
  color: var(--color-text-muted);
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--space-3xl) 0 var(--space-lg);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--color-border);
}

.footer-bg-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.02;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand {
  padding-right: var(--space-xl);
}

.footer-logo-main {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.footer-logo-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  text-transform: uppercase;
}

.footer-tagline {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  margin-top: var(--space-md);
  line-height: 1.6;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-link {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-smooth);
}

.footer-link:hover {
  color: var(--color-primary);
}

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

.footer-copyright {
  font-size: var(--fs-xs);
  color: var(--color-text-dim);
}

.footer-legal {
  display: flex;
  gap: var(--space-md);
}

.footer-legal a {
  font-size: var(--fs-xs);
  color: var(--color-text-dim);
  transition: color var(--duration-fast) var(--ease-smooth);
}

.footer-legal a:hover {
  color: var(--color-primary);
}

/* ---------- Back to Top ---------- */
.back-to-top {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-text-muted);
  font-size: 1rem;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

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

.back-to-top:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ---------- Accessibility ---------- */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: var(--color-bg);
  font-weight: 600;
  z-index: 100001;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
}