/* ==========================================================================
   DUO SOLS - Core Design System & Styling
   Aesthetic: Minimalist, Modern, Premium, High-End Tech (Linear / Vercel / Stripe)
   Theme: Default Light Theme with Smooth Dark Mode Toggle Support
   ========================================================================== */

:root {
  /* ========================================================================
     DEFAULT LIGHT THEME (Clean, Crisp, Apple & Stripe Aesthetic)
     ======================================================================== */
  --bg-primary: #f8f9fc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f3f8;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #ffffff;
  --bg-elevated: #ffffff;

  --text-primary: #09090b;
  --text-secondary: #52525c;
  --text-muted: #71717e;

  /* Accent: Sophisticated Electric Indigo */
  --accent: #5e6ad2;
  --accent-rgb: 94, 106, 210;
  --accent-light: #4f46e5;
  --accent-glow: rgba(94, 106, 210, 0.16);
  --accent-glow-strong: rgba(94, 106, 210, 0.3);

  /* Borders */
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.14);
  --border-accent: rgba(94, 106, 210, 0.35);

  /* Shadows */
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.03);
  --shadow-md: 0 12px 30px -8px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 24px 50px -12px rgba(0, 0, 0, 0.1);

  /* Canvas */
  --canvas-particle: rgba(94, 106, 210, 0.45);
  --canvas-line: rgba(94, 106, 210, 0.12);

  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Menlo, monospace;

  /* Layout */
  --max-width: 1280px;
  --header-height: 76px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 0.2s;
  --duration-normal: 0.35s;
}

/* ==========================================================================
   DARK THEME OVERRIDES (Toggleable anytime)
   ========================================================================== */
[data-theme="dark"] {
  --bg-primary: #080808;
  --bg-secondary: #111111;
  --bg-tertiary: #161618;
  --bg-card: rgba(17, 17, 19, 0.75);
  --bg-card-hover: rgba(24, 24, 28, 0.85);
  --bg-elevated: #1a1a1e;

  --text-primary: #f5f5f7;
  --text-secondary: #8e8e98;
  --text-muted: #5c5c66;

  --accent: #6366f1;
  --accent-rgb: 99, 102, 241;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.22);
  --accent-glow-strong: rgba(99, 102, 241, 0.4);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-accent: rgba(99, 102, 241, 0.4);

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 12px 30px -8px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 24px 50px -12px rgba(0, 0, 0, 0.75);

  --canvas-particle: rgba(165, 170, 255, 0.5);
  --canvas-line: rgba(99, 102, 241, 0.2);
}

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

html {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out);
}

body {
  min-height: 100vh;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  position: relative;
  overflow-x: hidden;
  letter-spacing: -0.01em;
  transition: background-color var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out);
}

/* Selection */
::selection {
  background: rgba(94, 106, 210, 0.25);
  color: var(--text-primary);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.15);
  border-radius: var(--radius-full);
}
[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.25);
}
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

p {
  color: var(--text-secondary);
}

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

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 8rem 0;
  position: relative;
}

@media (max-width: 768px) {
  .section {
    padding: 5rem 0;
  }
  .container {
    padding: 0 1.25rem;
  }
}

/* Section Header Shared Component */
.section-header {
  margin-bottom: 4rem;
  max-width: 640px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-light);
  margin-bottom: 1rem;
}

.section-eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  line-height: 1.15;
  color: var(--text-primary);
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  transition: background-color var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              backdrop-filter var(--duration-normal) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(248, 249, 252, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] .navbar.scrolled {
  background: rgba(8, 8, 8, 0.85);
  box-shadow: none;
}

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

/* Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  user-select: none;
}

.logo-symbol {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(94, 106, 210, 0.12) 0%, rgba(94, 106, 210, 0.25) 100%);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 15px rgba(94, 106, 210, 0.15);
}

.logo-symbol svg {
  width: 18px;
  height: 18px;
  color: var(--text-primary);
}

.brand-text span {
  color: var(--accent);
}

/* Nav Links Desktop */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
  padding: 0.35rem 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1.5px;
  background: var(--accent);
  transition: width var(--duration-fast) var(--ease-out);
}

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

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast) var(--ease-out);
}

.theme-toggle-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--border-medium);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.theme-toggle-btn svg {
  width: 18px;
  height: 18px;
}

/* Primary Button Style */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  letter-spacing: -0.01em;
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
  border: 1px solid var(--text-primary);
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--accent);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-accent:hover {
  background: var(--accent-light);
  box-shadow: 0 6px 20px var(--accent-glow-strong);
  transform: translateY(-1px);
}

.btn-ghost {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.btn-ghost:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-tertiary);
}

/* Mobile Drawer Overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 99;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 2rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  margin-bottom: 2.5rem;
}

.mobile-nav-link {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 3rem);
  padding-bottom: 4rem;
  overflow: hidden;
}

/* Hero Interactive Canvas */
.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: auto;
  opacity: 0.8;
}

/* Ambient Radial Glow */
.hero-glow {
  position: absolute;
  top: 25%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(circle, rgba(94, 106, 210, 0.1) 0%, rgba(94, 106, 210, 0) 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 960px;
}

/* Eyebrow badge */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Hero Headline */
.hero-headline {
  font-size: clamp(2.75rem, 6.5vw, 5.25rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 1.75rem;
  color: var(--text-primary);
}

.hero-headline .gradient-text {
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-headline .accent-text {
  background: linear-gradient(135deg, var(--text-primary) 20%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Hero Subtitle */
.hero-subline {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 2.75rem;
}

/* CTA buttons container */
.hero-ctas {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 4.5rem;
  flex-wrap: wrap;
}

/* Trust Statement */
.hero-trust {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.75rem;
  max-width: 600px;
}

.hero-trust-separator {
  color: var(--accent);
  opacity: 0.6;
}

/* ==========================================================================
   SERVICES SECTION
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
  transition: transform var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(94, 106, 210, 0.06), transparent 70%);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  pointer-events: none;
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-md), 0 0 20px -5px var(--accent-glow);
}

.service-card:hover::before {
  opacity: 1;
}

.service-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.service-num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: color var(--duration-fast) var(--ease-out);
}

.service-card:hover .service-num {
  color: var(--accent);
}

.service-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: all var(--duration-normal) var(--ease-out);
}

.service-icon-box svg {
  width: 22px;
  height: 22px;
  transition: transform var(--duration-normal) var(--ease-out);
}

.service-card:hover .service-icon-box {
  background: rgba(94, 106, 210, 0.12);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 15px var(--accent-glow);
}

.service-card:hover .service-icon-box svg {
  transform: scale(1.1) rotate(4deg);
}

.service-card-bottom {
  position: relative;
}

.service-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-primary);
}

.service-arrow {
  width: 20px;
  height: 20px;
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--duration-fast) var(--ease-out);
  color: var(--accent);
}

.service-card:hover .service-arrow {
  opacity: 1;
  transform: translateX(0);
}

.service-desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ==========================================================================
   FEATURED WORK SECTION
   ========================================================================== */
.work-grid {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

.project-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  align-items: center;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.project-card.reverse {
  grid-template-columns: 1fr 1.2fr;
}

.project-card.reverse .project-visual {
  order: 2;
}

.project-card.reverse .project-info {
  order: 1;
}

.project-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-lg), 0 0 25px -5px var(--accent-glow);
}

/* Simulated High-End Product Interface Visual */
.project-visual {
  position: relative;
  background: var(--bg-tertiary);
  padding: 2.25rem;
  overflow: hidden;
  border-right: 1px solid var(--border-subtle);
  height: 100%;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-card.reverse .project-visual {
  border-right: none;
  border-left: 1px solid var(--border-subtle);
}

.mockup-window {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: transform var(--duration-normal) var(--ease-out);
}

[data-theme="dark"] .mockup-window {
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.7);
}

.project-card:hover .mockup-window {
  transform: translateY(-4px) scale(1.02);
}

.mockup-header {
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mockup-dots {
  display: flex;
  gap: 0.35rem;
}

.mockup-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .mockup-dot {
  background: rgba(255, 255, 255, 0.2);
}

.mockup-url {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-left: auto;
}

.mockup-body {
  padding: 1.25rem;
}

/* Mockup specific designs for each project */
/* 1. Finora Fintech */
.finora-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.finora-stat-item {
  background: var(--bg-tertiary);
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}
.finora-stat-label {
  font-size: 0.6875rem;
  color: var(--text-muted);
}
.finora-stat-val {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 0.25rem;
}
.finora-chart {
  width: 100%;
  height: 90px;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  padding-top: 0.5rem;
}
.chart-bar {
  flex: 1;
  background: linear-gradient(180deg, var(--accent) 0%, rgba(94, 106, 210, 0.2) 100%);
  border-radius: 3px 3px 0 0;
}

/* 2. Medix Healthcare */
.medix-schedule {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.medix-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.8rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--text-primary);
}
.medix-badge {
  background: rgba(16, 185, 129, 0.12);
  color: #059669;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.6875rem;
  font-weight: 600;
}

/* 3. Atlas BI */
.atlas-telemetry {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.atlas-gauge {
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  border: 1px solid var(--border-subtle);
}

/* 4. Nova Commerce */
.nova-cart {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.nova-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  padding: 0.6rem;
  border-radius: var(--radius-sm);
}
.nova-thumb {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: linear-gradient(135deg, rgba(94, 106, 210, 0.3) 0%, rgba(94, 106, 210, 0.05) 100%);
}

/* Project Information */
.project-info {
  padding: 3rem 2.5rem;
}

.project-tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.project-title {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.project-category {
  font-size: 1.05rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 1.25rem;
}

.project-desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.tag-badge {
  font-size: 0.75rem;
  padding: 0.3rem 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  letter-spacing: -0.01em;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}

.project-link svg {
  width: 18px;
  height: 18px;
  transition: transform var(--duration-fast) var(--ease-out);
}

.project-link:hover {
  color: var(--accent);
}

.project-link:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.about-lead {
  font-size: clamp(1.75rem, 3.2vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 1.75rem;
  color: var(--text-primary);
}

.about-lead .gradient-accent {
  background: linear-gradient(135deg, var(--text-primary) 40%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.about-text {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

/* Visual Statement: IDEA -> PRODUCT -> GROWTH */
.visual-statement-card {
  background: linear-gradient(135deg, rgba(94, 106, 210, 0.04) 0%, rgba(94, 106, 210, 0.1) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2rem;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.statement-step {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}

.statement-arrow {
  color: var(--accent);
  font-size: 1.25rem;
}

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

.stat-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.stat-box:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.stat-number span {
  color: var(--accent);
}

.stat-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ==========================================================================
   TECHNOLOGY SECTION
   ========================================================================== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1rem;
}

.tech-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  transition: all var(--duration-fast) var(--ease-out);
  cursor: default;
  box-shadow: var(--shadow-sm);
}

.tech-item:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md), 0 0 16px var(--accent-glow);
}

.tech-icon {
  width: 32px;
  height: 32px;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}

.tech-item:hover .tech-icon {
  color: var(--text-primary);
  transform: scale(1.1);
}

.tech-name {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
  letter-spacing: -0.01em;
}

.tech-item:hover .tech-name {
  color: var(--text-primary);
}

/* ==========================================================================
   PROCESS SECTION
   ========================================================================== */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.5rem;
  position: relative;
}

/* Progress track */
.process-timeline::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 20px;
  right: 20px;
  height: 2px;
  background: var(--border-subtle);
  z-index: 1;
}

.process-step {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
}

.process-marker {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-out);
}

.process-step:hover .process-marker {
  border-color: var(--accent);
  color: var(--text-primary);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: scale(1.05);
}

.process-step-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.process-step-desc {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* ==========================================================================
   WHY DUO SOLS SECTION
   ========================================================================== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.why-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md), 0 0 16px var(--accent-glow);
}

.why-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.why-icon-box svg {
  width: 22px;
  height: 22px;
}

.why-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.why-desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ==========================================================================
   CTA SECTION
   ========================================================================== */
.cta-box {
  position: relative;
  background: radial-gradient(circle at center, rgba(94, 106, 210, 0.08) 0%, var(--bg-secondary) 75%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 6rem 3rem;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(circle, rgba(94, 106, 210, 0.2) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
}

.cta-title {
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.cta-desc {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.6;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-subtle);
  padding: 5rem 0 3rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4.5rem;
}

.footer-wordmark {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.footer-tagline {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.footer-email-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: var(--accent);
  font-weight: 500;
}

.footer-email-link:hover {
  text-decoration: underline;
}

.footer-column-title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

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

.footer-link {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}

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

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

/* ==========================================================================
   INTERACTIVE INQUIRY MODAL / DRAWER
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

[data-theme="dark"] .modal-overlay {
  background: rgba(0, 0, 0, 0.75);
}

.modal-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.98);
  transition: transform var(--duration-normal) var(--ease-out);
  position: relative;
}

.modal-overlay.active .modal-container {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast) var(--ease-out);
}

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

.modal-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.modal-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

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

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9375rem;
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

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

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

.form-success {
  display: none;
  text-align: center;
  padding: 2.5rem 1rem;
}

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

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS (INTERSECTION OBSERVER)
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out),
              transform 0.7s var(--ease-out);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.stagger-1 { transition-delay: 0.08s; }
.stagger-2 { transition-delay: 0.16s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.32s; }
.stagger-5 { transition-delay: 0.40s; }
.stagger-6 { transition-delay: 0.48s; }

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 1200px) {
  .tech-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .process-timeline {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 2.5rem;
  }
  .process-timeline::before {
    display: none;
  }
}

@media (max-width: 992px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .project-card, .project-card.reverse {
    grid-template-columns: 1fr;
  }
  .project-visual {
    border-right: none !important;
    border-left: none !important;
    border-bottom: 1px solid var(--border-subtle);
    order: 1 !important;
    min-height: 320px;
  }
  .project-info {
    order: 2 !important;
    padding: 2rem;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    row-gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn-ghost {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-timeline {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .why-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .visual-statement-card {
    flex-direction: column;
    text-align: center;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ==========================================================================
   IMAGE ENHANCEMENTS
   ========================================================================== */
.mockup-img-container {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--bg-secondary);
}

.mockup-img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  object-position: top center;
  display: block;
  transition: transform var(--duration-normal) var(--ease-out);
}

.project-card:hover .mockup-img {
  transform: scale(1.04);
}

.about-showcase-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-md);
  background: var(--bg-card);
}

.about-showcase-img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  display: block;
  transition: transform var(--duration-normal) var(--ease-out);
}

.about-showcase-card:hover .about-showcase-img {
  transform: scale(1.03);
}

.about-showcase-badge {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(8, 8, 8, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.04em;
}

.case-modal-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin-bottom: 1.5rem;
  display: block;
}