/* ============================================
   CSS Variables & Base
   ============================================ */
:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a2e;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --bg-glass-border: rgba(255, 255, 255, 0.08);

  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted: #6b6b80;

  --accent-primary: #6c63ff;
  --accent-secondary: #00d4ff;
  --accent-gradient: linear-gradient(135deg, #6c63ff 0%, #00d4ff 100%);
  --accent-gradient-hover: linear-gradient(135deg, #7b73ff 0%, #1adfff 100%);
  --accent-glow: rgba(108, 99, 255, 0.4);
  --accent-glow-secondary: rgba(0, 212, 255, 0.3);

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(108, 99, 255, 0.3);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.5rem;
  --fs-4xl: 3.5rem;
  --fs-5xl: 4.5rem;

  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  --lh-tight: 1.1;
  --lh-snug: 1.3;
  --lh-normal: 1.6;

  --ls-tight: -0.03em;
  --ls-normal: 0;
  --ls-wide: 0.05em;
  --ls-wider: 0.1em;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --nav-height: 72px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-spring: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* 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 var(--accent-glow);
  --shadow-glow-sm: 0 0 15px var(--accent-glow);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  font-weight: var(--fw-normal);
  line-height: var(--lh-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

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

ul, ol {
  list-style: none;
}

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

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

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

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

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

.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--accent-secondary);
  margin-bottom: var(--space-lg);
  padding: var(--space-xs) var(--space-md);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: var(--radius-full);
}

.section-label::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-secondary);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.section-title {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  margin-bottom: var(--space-lg);
}

.section-subtitle {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  max-width: 600px;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.nav.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border-subtle);
}

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

.nav-logo {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-tight);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  transition: opacity var(--transition-fast);
}

.nav-logo:hover {
  opacity: 0.85;
}

.nav-logo .logo-img {
  height: 36px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  transition: filter var(--transition-base);
}

.nav-logo:hover .logo-img {
  filter: brightness(0) invert(1) drop-shadow(0 0 8px rgba(0, 212, 255, 0.5));
}

.nav-logo .logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav-links a {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 1px;
  transition: width var(--transition-base);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  font-size: var(--fs-sm) !important;
  font-weight: var(--fw-medium) !important;
  color: var(--text-primary) !important;
  padding: var(--space-xs) var(--space-lg);
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  transition: opacity var(--transition-fast), transform var(--transition-fast) !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 1001;
}

.nav-mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

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

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

.hero-particles canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

.hero-gradient-orb--purple {
  width: 600px;
  height: 600px;
  background: var(--accent-primary);
  top: -200px;
  right: -100px;
  animation: float-orb 12s ease-in-out infinite;
}

.hero-gradient-orb--cyan {
  width: 500px;
  height: 500px;
  background: var(--accent-secondary);
  bottom: -150px;
  left: -100px;
  animation: float-orb 15s ease-in-out infinite reverse;
}

@keyframes float-orb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  animation: fade-up 0.8s ease forwards;
  opacity: 0;
}

.hero-badge .pulse {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  position: relative;
}

.hero-badge .pulse::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.3);
  animation: pulse-ring 2s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.8); opacity: 0; }
}

.hero-title {
  font-size: var(--fs-5xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  margin-bottom: var(--space-xl);
  animation: fade-up 0.8s ease 0.15s forwards;
  opacity: 0;
}

.hero-subtitle {
  font-size: var(--fs-lg);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  margin-bottom: var(--space-3xl);
  max-width: 560px;
  animation: fade-up 0.8s ease 0.3s forwards;
  opacity: 0;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  animation: fade-up 0.8s ease 0.45s forwards;
  opacity: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 14px 28px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-gradient);
  color: var(--text-primary);
  box-shadow: var(--shadow-glow-sm);
}

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

.btn-secondary {
  background: var(--bg-glass);
  border: 1px solid var(--bg-glass-border);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.btn svg {
  width: 16px;
  height: 16px;
}

.hero-stats {
  display: flex;
  gap: var(--space-3xl);
  margin-top: var(--space-4xl);
  animation: fade-up 0.8s ease 0.6s forwards;
  opacity: 0;
}

.hero-stat {
  position: relative;
}

.hero-stat::after {
  content: '';
  position: absolute;
  right: calc(-1 * var(--space-lg));
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 40px;
  background: var(--border-subtle);
}

.hero-stat:last-child::after {
  display: none;
}

.hero-stat-value {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-stat-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  margin-top: 2px;
}

/* ============================================
   Services Section
   ============================================ */
.services {
  background: var(--bg-secondary);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.services-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

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

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

.service-card {
  position: relative;
  padding: var(--space-2xl);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  overflow: hidden;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  color: inherit;
  width: 100%;
  display: block;
}

.service-card:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(108, 99, 255, 0.06), transparent 40%);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(108, 99, 255, 0.1);
}

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

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

.service-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108, 99, 255, 0.1);
  border: 1px solid rgba(108, 99, 255, 0.2);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  font-size: 22px;
  transition: all var(--transition-base);
}

.service-card:hover .service-icon {
  background: rgba(108, 99, 255, 0.15);
  box-shadow: 0 0 20px rgba(108, 99, 255, 0.2);
  transform: scale(1.05);
}

.service-title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-sm);
}

.service-description {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
}

.service-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--accent-primary);
  margin-top: var(--space-lg);
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--transition-base);
}

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

/* ============================================
   Tech Stack Section
   ============================================ */
.tech-stack {
  position: relative;
}

.tech-stack-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.tech-stack-header .section-subtitle {
  margin: 0 auto;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xl) var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.tech-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition-base);
}

.tech-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow-sm);
}

.tech-item:hover::after {
  width: 60%;
}

.tech-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  transition: transform var(--transition-spring);
}

.tech-item:hover .tech-icon {
  transform: scale(1.15);
}

.tech-name {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

/* ============================================
   Projects Section
   ============================================ */
.projects {
  background: var(--bg-secondary);
  position: relative;
}

.projects::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.projects-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.projects-header .section-subtitle {
  margin: 0 auto;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.project-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 30px rgba(108, 99, 255, 0.08);
}

.project-image {
  width: 100%;
  height: 240px;
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-primary));
  position: relative;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform var(--transition-slow), filter var(--transition-slow);
  filter: saturate(0.9) brightness(0.92);
}

.project-card:hover .project-image img {
  transform: scale(1.05);
  filter: saturate(1.05) brightness(1);
}

.project-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10, 10, 15, 0.55) 100%);
  pointer-events: none;
}

.project-image-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.15;
  background-image:
    radial-gradient(circle at 25% 25%, var(--accent-primary) 1px, transparent 1px),
    radial-gradient(circle at 75% 75%, var(--accent-secondary) 1px, transparent 1px);
  background-size: 30px 30px;
}

.project-image-label {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: 4px 12px;
  background: rgba(10, 10, 15, 0.65);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2;
}

.project-body {
  padding: var(--space-xl);
}

.project-title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-xs);
}

.project-description {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  margin-bottom: var(--space-lg);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.project-tag {
  padding: 4px 10px;
  background: rgba(108, 99, 255, 0.08);
  border: 1px solid rgba(108, 99, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--accent-primary);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.project-link:hover {
  color: var(--accent-secondary);
  gap: 10px;
}

.project-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.project-link:hover svg {
  transform: translateX(3px);
}

.project-link--muted {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-muted);
  cursor: default;
}

.project-link--muted svg {
  width: 14px;
  height: 14px;
}

/* ============================================
   About Section
   ============================================ */
.about {
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-image {
  width: 100%;
  aspect-ratio: 4 / 5;
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  position: relative;
}

.about-image-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--transition-slow), filter var(--transition-slow);
  filter: saturate(0.95) brightness(0.95);
}

.about-image-wrapper:hover .about-image-photo {
  transform: scale(1.03);
  filter: saturate(1.05) brightness(1);
}

.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10, 10, 15, 0.5) 100%);
  pointer-events: none;
  z-index: 1;
}

.about-image-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.08;
  background-image:
    linear-gradient(var(--border-subtle) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: 40px 40px;
}

.about-image-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 80px;
  opacity: 0.3;
}

.about-image-badge {
  position: absolute;
  bottom: var(--space-xl);
  left: var(--space-xl);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(10, 10, 15, 0.55);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 2;
}

.about-image-badge-value {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.about-image-badge-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
}

.about-content .section-title {
  font-size: var(--fs-3xl);
}

.about-text {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  margin-bottom: var(--space-xl);
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.about-highlight {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  transition: all var(--transition-fast);
}

.about-highlight:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
}

.about-highlight-icon {
  font-size: var(--fs-md);
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
  background: var(--bg-secondary);
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
}

.contact-info .section-title {
  font-size: var(--fs-3xl);
}

.contact-text {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  margin-bottom: var(--space-2xl);
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.contact-method:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
}

.contact-method-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108, 99, 255, 0.1);
  border-radius: var(--radius-sm);
  font-size: var(--fs-md);
}

.contact-method-label {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-bottom: 2px;
}

.contact-method-value {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
}

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

.contact-social {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.contact-social:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-sm);
}

.contact-social svg {
  width: 20px;
  height: 20px;
  fill: var(--text-secondary);
  transition: fill var(--transition-fast);
}

.contact-social:hover svg {
  fill: var(--text-primary);
}

.contact-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}

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

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  transition: all var(--transition-fast);
  outline: none;
}

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

.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-submit {
  width: 100%;
  padding: 14px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  background: var(--accent-gradient);
  color: var(--text-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.form-submit:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.form-submit:active {
  transform: translateY(0);
}

.form-submit:disabled {
  cursor: not-allowed;
  opacity: 0.8;
}

.form-status {
  margin-top: var(--space-md);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  min-height: 1.25em;
  text-align: center;
  transition: color var(--transition-fast);
}

.form-status--success {
  color: #4ade80;
}

.form-status--error {
  color: #f87171;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: var(--space-4xl) 0 var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

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

.footer-brand .nav-logo {
  margin-bottom: var(--space-md);
}

.footer-brand-text {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  line-height: var(--lh-normal);
  max-width: 280px;
}

.footer-col-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

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

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

.footer-bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom-links a {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--text-primary);
}

/* ============================================
   Modal
   ============================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal[hidden] {
  display: none;
}

.modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 5, 10, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  cursor: pointer;
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  overflow-y: auto;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 60px rgba(108, 99, 255, 0.08);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

.modal.is-open .modal-content {
  transform: translateY(0) scale(1);
}

.modal-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-content::-webkit-scrollbar {
  width: 8px;
}

.modal-content::-webkit-scrollbar-track {
  background: transparent;
}

.modal-content::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: 4px;
}

.modal-content::-webkit-scrollbar-thumb:hover {
  background: var(--border-accent);
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 1;
}

.modal-close:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--border-accent);
  transform: rotate(90deg);
}

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

.modal-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108, 99, 255, 0.12);
  border: 1px solid rgba(108, 99, 255, 0.25);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  box-shadow: 0 0 30px rgba(108, 99, 255, 0.15);
}

.modal-icon svg {
  width: 28px;
  height: 28px;
}

.modal-eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--accent-secondary);
  margin-bottom: var(--space-xs);
}

.modal-title {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-tight);
  line-height: var(--lh-tight);
  margin-bottom: var(--space-sm);
}

.modal-description {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
}

.modal-body {
  margin-bottom: var(--space-xl);
}

.modal-section-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  margin-top: var(--space-lg);
}

.modal-section-title:first-child {
  margin-top: 0;
}

.modal-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.modal-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.modal-list li:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  color: var(--text-primary);
}

.modal-list li::before {
  content: '';
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--accent-gradient);
  box-shadow: 0 0 8px var(--accent-glow);
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.modal-tag {
  padding: 6px 14px;
  background: rgba(108, 99, 255, 0.08);
  border: 1px solid rgba(108, 99, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--accent-primary);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-subtle);
}

.modal-cta {
  width: 100%;
}

body.modal-open {
  overflow: hidden;
}

@media (max-width: 600px) {
  .modal-content {
    padding: var(--space-xl) var(--space-lg);
    max-height: 95vh;
  }

  .modal-title {
    font-size: var(--fs-xl);
  }
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  :root {
    --fs-5xl: 3.5rem;
    --fs-4xl: 2.5rem;
    --fs-3xl: 2rem;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .about-image-wrapper {
    max-width: 400px;
    margin: 0 auto;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  :root {
    --fs-5xl: 2.5rem;
    --fs-4xl: 2rem;
    --fs-3xl: 1.75rem;
    --space-5xl: 5rem;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-2xl);
    z-index: 999;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: var(--fs-xl);
  }

  .nav-mobile-toggle {
    display: flex;
  }

  .nav-logo .logo-img {
    height: 30px;
  }

  .hero-title {
    font-size: var(--fs-4xl);
  }

  .hero-stats {
    gap: var(--space-xl);
  }

  .hero-stat-value {
    font-size: var(--fs-xl);
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .about-highlights {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .tech-grid {
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  }
}

@media (max-width: 480px) {
  :root {
    --fs-5xl: 2rem;
    --fs-4xl: 1.75rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-md);
  }

  .hero-stat::after {
    display: none;
  }
}