/* =============================================
   UX Portfolio — dr.ux
   ============================================= */

/* Variables */
:root {
  --bg: #FAFAF8;
  --bg-alt: #F2F1EF;
  --text: #1A1A1A;
  --text-muted: #6B6B6B;
  --text-light: #A0A0A0;
  --border: #E5E4E0;
  --accent: #2B4FFF;
  --accent-hover: #1A3AE8;
  --accent-light: rgba(43, 79, 255, 0.08);
  --white: #FFFFFF;
  --card-bg: #FFFFFF;
  --shadow: 0 2px 20px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --nav-h: 72px;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-mono: 'Space Mono', monospace;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg: #111110;
  --bg-alt: #1A1A18;
  --text: #F0EFE8;
  --text-muted: #9A9A92;
  --text-light: #606058;
  --border: #2A2A28;
  --accent: #6B8EFF;
  --accent-hover: #8BA4FF;
  --accent-light: rgba(107, 142, 255, 0.1);
  --card-bg: #1A1A18;
  --shadow: 0 2px 20px rgba(0,0,0,0.3);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.4);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
  transition: background var(--transition), color var(--transition);
}

@media (hover: none) {
  body { cursor: auto; }
  .cursor, .cursor-follower { display: none; }
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: none; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 40px;
}

/* =============================================
   Custom Cursor
   ============================================= */
.cursor {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s, background 0.2s, width 0.2s, height 0.2s;
}

.cursor-follower {
  position: fixed;
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease, width 0.2s, height 0.2s, border-color 0.2s;
  opacity: 0.6;
}

.cursor.hovering { width: 16px; height: 16px; }
.cursor-follower.hovering { width: 48px; height: 48px; opacity: 0.3; }

/* =============================================
   Scroll Progress
   ============================================= */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--accent);
  z-index: 9997;
  width: 0%;
  transition: width 0.1s linear;
}

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

.nav.scrolled {
  background: rgba(250, 250, 248, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}

[data-theme="dark"] .nav.scrolled {
  background: rgba(17, 17, 16, 0.9);
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 40px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
  transition: color var(--transition);
}

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

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.7; }
}

.nav-links {
  display: flex;
  gap: 40px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  position: relative;
  transition: color var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-link:hover { color: var(--text); }
.nav-link:hover::after { width: 100%; }

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

.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 18px;
  transition: background var(--transition), color var(--transition);
  cursor: none;
}

.theme-toggle:hover {
  background: var(--bg-alt);
  color: var(--text);
}

.theme-icon { transition: opacity 0.2s, transform 0.2s; }
[data-theme="light"] .theme-icon.moon { display: none; }
[data-theme="dark"] .theme-icon.sun { display: none; }
[data-theme="dark"] .theme-icon.moon { display: inline; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  cursor: none;
}

.menu-toggle span {
  width: 100%;
  height: 1.5px;
  background: var(--text);
  display: block;
  transition: transform var(--transition), opacity var(--transition), width var(--transition);
  transform-origin: left center;
}

.menu-toggle.open span:first-child { transform: rotate(45deg) translateY(-1px); }
.menu-toggle.open span:last-child { transform: rotate(-45deg) translateY(1px); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: 32px;
  text-align: center;
}

.mobile-link {
  font-family: var(--font-serif);
  font-size: clamp(28px, 6vw, 48px);
  font-weight: 400;
  color: var(--text);
  transition: color var(--transition);
}

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

/* =============================================
   Section Labels
   ============================================= */
.section-label {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 48px;
}

.label-num {
  color: var(--accent);
}

/* =============================================
   Reveal Animations
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

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

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.4;
  pointer-events: none;
}

.hero-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 80px;
  padding-bottom: 80px;
}

.hero-label {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 32px;
  opacity: 0;
  animation: fadeInUp 0.6s ease 0.2s forwards;
}

.label-line {
  width: 40px;
  height: 1px;
  background: var(--accent);
  display: block;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(52px, 8vw, 108px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
}

.hero-line {
  display: block;
  opacity: 0;
  transform: translateY(40px);
  animation: heroLineIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-line:nth-child(1) { animation-delay: 0.3s; }
.hero-line:nth-child(2) { animation-delay: 0.45s; }
.hero-line:nth-child(3) { animation-delay: 0.6s; }

.hero-italic {
  font-style: italic;
  color: var(--accent);
}

@keyframes heroLineIn {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}

.hero-sub {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 48px;
  min-height: 28px;
  opacity: 0;
  animation: fadeInUp 0.6s ease 0.9s forwards;
}

.hero-sub .cursor-blink {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.9s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.6s ease 1.1s forwards;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.2px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  cursor: none;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--transition);
}

.btn:hover::after { opacity: 0.06; }

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(43, 79, 255, 0.3);
}

.btn-secondary {
  border: 1.5px solid var(--border);
  color: var(--text);
  background: transparent;
}

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

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

.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-light);
  opacity: 0;
  animation: fadeInUp 0.6s ease 1.4s forwards;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--text-light), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.6); opacity: 0.4; }
  100% { transform: scaleY(1); opacity: 1; }
}

.hero-stats {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--border);
  opacity: 0;
  animation: fadeInUp 0.6s ease 1.5s forwards;
}

.stat {
  flex: 1;
  padding: 32px 40px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.stat:last-child { border-right: none; }

.stat-num {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 600;
  letter-spacing: -2px;
  line-height: 1;
  color: var(--text);
}

.stat-unit {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 400;
  color: var(--accent);
  margin-left: 2px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 8px;
  letter-spacing: 0.3px;
}

/* =============================================
   About Section
   ============================================= */
.about {
  padding: 120px 0;
  background: var(--bg-alt);
}

.about-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 80px;
  align-items: start;
}

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

.about-image-placeholder {
  aspect-ratio: 3/4;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1.5px dashed var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  overflow: hidden;
  position: relative;
  transition: border-color var(--transition);
}

.about-image-placeholder:hover { border-color: var(--accent); }
.about-image-placeholder:hover .image-overlay-text { opacity: 1; }

.image-initials {
  font-family: var(--font-serif);
  font-size: 72px;
  font-weight: 700;
  color: var(--border);
  letter-spacing: -2px;
  transition: color var(--transition);
}

.about-image-placeholder:hover .image-initials { color: var(--accent); opacity: 0.3; }

.image-overlay-text {
  position: absolute;
  bottom: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0;
  transition: opacity var(--transition);
}

.about-image-tag {
  position: absolute;
  bottom: -16px;
  left: 24px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--shadow);
}

.availability-dot {
  width: 8px;
  height: 8px;
  background: #22C55E;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.about-content { padding-top: 8px; }

.about-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 28px;
}

.about-text {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-text em { font-style: italic; color: var(--text); }

.about-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 32px 0;
}

.skill-tag {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-muted);
  transition: all var(--transition);
  cursor: default;
}

.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

.about-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.about-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
  transition: all var(--transition);
}

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

/* =============================================
   Work Section
   ============================================= */
.work {
  padding: 120px 0;
}

.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 0;
}

.section-header .section-label { margin-bottom: 0; }

.work-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  border: 1px solid var(--border);
  transition: all var(--transition);
  cursor: none;
}

.filter-btn:hover { color: var(--text); border-color: var(--text); }

.filter-btn.active {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}

.project-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition), opacity 0.4s ease, transform 0.4s ease;
  cursor: none;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

.project-card.hidden {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  position: absolute;
  visibility: hidden;
}

.project-image {
  position: relative;
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.project-placeholder-icon {
  opacity: 0.8;
  transition: transform var(--transition), opacity var(--transition);
}

.project-card:hover .project-placeholder-icon {
  transform: scale(1.1);
  opacity: 0.6;
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  backdrop-filter: blur(4px);
}

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

.project-link-btn {
  padding: 12px 24px;
  background: white;
  color: #1A1A1A;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transform: translateY(8px);
  transition: transform var(--transition);
}

.project-card:hover .project-link-btn { transform: translateY(0); }

.project-meta {
  padding: 24px;
}

.project-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.5px;
  color: var(--accent);
  background: var(--accent-light);
  padding: 3px 10px;
  border-radius: 4px;
}

.project-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.3px;
  line-height: 1.3;
  margin-bottom: 10px;
  color: var(--text);
}

.project-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.project-result {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.result-icon {
  font-size: 16px;
  color: var(--accent);
}

/* =============================================
   Process Section
   ============================================= */
.process {
  padding: 120px 0;
  background: var(--bg-alt);
}

.process-headline {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -1px;
  max-width: 640px;
  margin-bottom: 80px;
}

.process-headline em { font-style: italic; color: var(--accent); }

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.process-step {
  padding: 40px 32px;
  border-right: 1px solid var(--border);
  position: relative;
  transition: background var(--transition);
}

.process-step:last-child { border-right: none; }

.process-step:hover { background: var(--bg); }

.step-number {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 20px;
}

.step-content h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.3px;
  margin-bottom: 12px;
}

.step-content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}

.step-methods {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.step-methods li {
  font-size: 12px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-methods li::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* =============================================
   Testimonials
   ============================================= */
.testimonials {
  padding: 100px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.testimonials-track {
  position: relative;
  min-height: 200px;
}

.testimonial {
  display: none;
  animation: fadeSlide 0.5s ease;
}

.testimonial.active { display: block; }

@keyframes fadeSlide {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

blockquote {
  font-family: var(--font-serif);
  font-size: clamp(22px, 3vw, 32px);
  font-style: italic;
  line-height: 1.5;
  letter-spacing: -0.3px;
  color: var(--text);
  max-width: 860px;
  margin-bottom: 40px;
}

blockquote::before {
  content: '"';
  font-size: 80px;
  line-height: 0.5;
  color: var(--accent);
  opacity: 0.3;
  display: block;
  margin-bottom: 16px;
  font-style: normal;
}

cite {
  display: flex;
  align-items: center;
  gap: 16px;
  font-style: normal;
}

.cite-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: white;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

cite strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

cite span {
  font-size: 13px;
  color: var(--text-muted);
}

.testimonials-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 48px;
}

.t-nav-btn {
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-muted);
  transition: all var(--transition);
  cursor: none;
}

.t-nav-btn:hover {
  border-color: var(--text);
  color: var(--text);
  transform: scale(1.05);
}

.t-dots {
  display: flex;
  gap: 8px;
}

.t-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
  transition: all var(--transition);
  cursor: none;
}

.t-dot.active {
  background: var(--accent);
  width: 20px;
  border-radius: 3px;
}

/* =============================================
   Contact Section
   ============================================= */
.contact {
  padding: 120px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-headline {
  font-family: var(--font-serif);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 24px;
}

.contact-headline em { font-style: italic; color: var(--accent); }

.contact-text {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 48px;
}

.contact-social {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.social-link:hover {
  color: var(--text);
  padding-left: 8px;
}

.social-icon {
  width: 32px;
  height: 32px;
  background: var(--bg-alt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--accent);
  transition: background var(--transition);
  flex-shrink: 0;
}

.social-link:hover .social-icon { background: var(--accent-light); }

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.2px;
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--text);
  background: var(--bg);
  outline: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
}

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

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
  background: var(--bg);
}

.form-group input.error,
.form-group textarea.error { border-color: #EF4444; }

.form-error {
  font-size: 12px;
  color: #EF4444;
  min-height: 16px;
}

.char-count {
  font-size: 11px;
  color: var(--text-light);
  text-align: right;
  margin-top: -4px;
}

.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select { cursor: none; }

.btn-spinner {
  display: none;
  animation: spin 0.8s linear infinite;
}

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

.btn.loading .btn-text { display: none; }
.btn.loading .btn-spinner { display: inline; }

.form-success {
  display: none;
  padding: 16px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: var(--radius-sm);
  color: #16A34A;
  font-size: 14px;
  font-weight: 500;
  text-align: center;
}

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

/* =============================================
   Footer
   ============================================= */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
}

.footer-copy {
  font-size: 13px;
  color: var(--text-light);
}

.back-to-top {
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-muted);
  transition: all var(--transition);
  cursor: none;
}

.back-to-top:hover {
  border-color: var(--text);
  color: var(--text);
  transform: translateY(-3px);
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-step:nth-child(2) { border-right: none; }
  .process-step:nth-child(1),
  .process-step:nth-child(2) { border-bottom: 1px solid var(--border); }
  .about-grid { grid-template-columns: 300px 1fr; gap: 60px; }
}

@media (max-width: 768px) {
  .container { padding: 0 24px; }
  .nav-links { display: none; }
  .menu-toggle { display: flex; }

  .hero-title { letter-spacing: -1.5px; }
  .hero-stats { flex-direction: column; }
  .stat { border-right: none; border-bottom: 1px solid var(--border); }
  .stat:last-child { border-bottom: none; }
  .stat { padding: 24px; }
  .hero-scroll-hint { display: none; }

  .about { padding: 80px 0; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-image-wrap { max-width: 280px; }

  .work { padding: 80px 0; }
  .section-header { flex-direction: column; }
  .projects-grid { grid-template-columns: 1fr; }

  .process { padding: 80px 0; }
  .process-steps { grid-template-columns: 1fr; border-radius: var(--radius); }
  .process-step { border-right: none !important; border-bottom: 1px solid var(--border); }
  .process-step:last-child { border-bottom: none; }

  .contact { padding: 80px 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-form { padding: 28px; }

  .footer-copy { display: none; }
}

@media (max-width: 480px) {
  :root { --nav-h: 60px; }
  .hero-actions { flex-direction: column; }
  .btn { justify-content: center; }
  .process-step { padding: 28px 24px; }
}