/* ============================================
   TENDAI KARUMA - Personal Portfolio
   Black & White Theme with Animations
   ============================================ */

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

:root {
  /* Colors */
  --black: #000000;
  --white: #ffffff;
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;
  --gray-950: #0a0a0a;

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

  /* Sizing */
  --container: 1200px;
  --container-narrow: 900px;
  --header-height: 80px;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 0.2s;
  --duration-base: 0.4s;
  --duration-slow: 0.8s;
  --duration-slower: 1.2s;
}

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

body {
  font-family: var(--font-body);
  background: var(--white);
  color: var(--gray-900);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

/* --- Preloader --- */
.preloader {
  position: fixed;
  inset: 0;
  background: var(--black);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease-out), visibility 0.6s;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.preloader-inner {
  text-align: center;
}

.preloader-text {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.3em;
  overflow: hidden;
}

.preloader-text span {
  display: inline-block;
  animation: preloaderReveal 0.6s var(--ease-out) forwards;
  opacity: 0;
  transform: translateY(100%);
}

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

.preloader-line {
  width: 60px;
  height: 2px;
  background: var(--white);
  margin: 1.5rem auto 0;
  animation: preloaderLine 1.5s var(--ease-in-out) infinite;
}

@keyframes preloaderLine {
  0%, 100% { transform: scaleX(0.3); opacity: 0.3; }
  50% { transform: scaleX(1); opacity: 1; }
}

/* --- Cursor Trail (desktop only) --- */
.cursor-dot {
  width: 8px;
  height: 8px;
  background: var(--black);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.15s var(--ease-out);
  mix-blend-mode: difference;
}

.cursor-ring {
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--black);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  transition: transform 0.3s var(--ease-out), width 0.3s, height 0.3s, border-color 0.3s;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
}

.cursor-ring.hovering {
  width: 60px;
  height: 60px;
  border-color: var(--white);
}

@media (max-width: 1024px) {
  .cursor-dot, .cursor-ring { display: none; }
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 2rem;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              backdrop-filter var(--duration-base);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--gray-200);
}

/* Dark header variant (for pages with dark page-header backgrounds) */
.header-dark .nav-link {
  color: var(--white);
}

.header-dark .nav-link::after {
  background: var(--white);
}

.header-dark .nav-dropdown-trigger {
  color: var(--white);
}

.header-dark .nav-dropdown-trigger .arrow {
  color: var(--white);
}

.header-dark .menu-toggle span {
  background: var(--white);
}

.header-dark .logo-dark { display: none; }
.header-dark .logo-light { display: block; }
.logo-light { display: none; }

/* When scrolled, revert to dark nav on white bg */
.header-dark.scrolled .nav-link {
  color: var(--gray-900);
}

.header-dark.scrolled .nav-link::after {
  background: var(--black);
}

.header-dark.scrolled .nav-dropdown-trigger {
  color: var(--gray-900);
}

.header-dark.scrolled .nav-dropdown-trigger .arrow {
  color: var(--gray-900);
}

.header-dark.scrolled .menu-toggle span {
  background: var(--black);
}

.header-dark.scrolled .logo-dark { display: block; }
.header-dark.scrolled .logo-light { display: none; }

.header-inner {
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: inline-flex;
  align-items: center;
  position: relative;
}

.logo img {
  height: 36px;
  width: auto;
  transition: opacity var(--duration-fast);
}

.logo:hover img {
  opacity: 0.7;
}

/* Desktop Nav */
.nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--duration-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: var(--black);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-base) var(--ease-out);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
}

.nav-dropdown-trigger .arrow {
  font-size: 0.6rem;
  transition: transform var(--duration-base) var(--ease-out);
}

.nav-dropdown:hover .arrow,
.nav-dropdown.open .arrow {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 1rem);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--white);
  border: 1px solid var(--gray-200);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  min-width: 220px;
  padding: 0.75rem 0;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-base) var(--ease-out);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
  display: block;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--duration-fast);
  position: relative;
}

.nav-dropdown-menu a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--black);
  transform: scaleY(0);
  transition: transform var(--duration-base) var(--ease-out);
}

.nav-dropdown-menu a:hover {
  background: var(--gray-50);
  padding-left: 2rem;
}

.nav-dropdown-menu a:hover::before {
  transform: scaleY(1);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--black);
  transition: all var(--duration-base) var(--ease-out);
  transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Nav Overlay */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--white);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-slow) var(--ease-out);
}

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

.mobile-nav a,
.mobile-nav .mobile-dropdown-trigger {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  padding: 0.5rem 0;
  position: relative;
  transform: translateY(30px);
  opacity: 0;
  transition: transform var(--duration-slow) var(--ease-out), opacity var(--duration-slow) var(--ease-out);
  cursor: pointer;
  display: block;
  text-align: center;
}

.mobile-nav.active a,
.mobile-nav.active .mobile-dropdown-trigger {
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav.active a:nth-child(1),
.mobile-nav.active .mobile-dropdown-group:nth-child(1) .mobile-dropdown-trigger { transition-delay: 0.1s; }
.mobile-nav.active a:nth-child(2),
.mobile-nav.active .mobile-dropdown-group:nth-child(2) .mobile-dropdown-trigger { transition-delay: 0.15s; }
.mobile-nav.active .mobile-dropdown-group:nth-child(3) .mobile-dropdown-trigger { transition-delay: 0.2s; }
.mobile-nav.active a:nth-child(4),
.mobile-nav.active .mobile-dropdown-group:nth-child(4) a { transition-delay: 0.25s; }

.mobile-dropdown-sub {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--duration-base) var(--ease-out);
}

.mobile-dropdown-sub.open {
  max-height: 300px;
}

.mobile-dropdown-sub a {
  font-size: clamp(1rem, 3vw, 1.5rem) !important;
  font-weight: 500 !important;
  color: var(--gray-600);
}

.mobile-dropdown-sub a:hover {
  color: var(--black);
}

/* --- Page Transition --- */
.page-transition {
  position: fixed;
  inset: 0;
  background: var(--black);
  z-index: 9000;
  transform: scaleY(0);
  transform-origin: bottom;
}

/* --- Sections & Containers --- */
.section {
  padding: 8rem 2rem;
  position: relative;
}

.section-dark {
  background: var(--black);
  color: var(--white);
}

.section-gray {
  background: var(--gray-50);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  width: 100%;
}

/* --- Section Headers --- */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  position: relative;
  padding-left: 2rem;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 1.25rem;
  height: 1.5px;
  background: currentColor;
}

.section-dark .section-label::before {
  background: var(--white);
}

.section-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-500);
  max-width: 550px;
  line-height: 1.8;
}

.section-dark .section-subtitle {
  color: var(--gray-400);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 4rem) 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 2;
}

.hero-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  overflow: hidden;
}

.hero-label .reveal-text {
  display: inline-block;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 2rem;
}

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

.hero-title .line-inner {
  display: block;
  transform: translateY(110%);
  animation: lineReveal var(--duration-slower) var(--ease-out) forwards;
}

.hero-title .line:nth-child(2) .line-inner { animation-delay: 0.15s; }
.hero-title .line:nth-child(3) .line-inner { animation-delay: 0.3s; }

@keyframes lineReveal {
  to { transform: translateY(0); }
}

.hero-description {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 500px;
  line-height: 1.8;
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.6s forwards;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.8s forwards;
}

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

/* Hero decoration */
.hero-decoration {
  position: absolute;
  right: -2%;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-heading);
  font-size: clamp(15rem, 30vw, 35rem);
  font-weight: 900;
  line-height: 1;
  color: var(--black);
  opacity: 0.03;
  z-index: 1;
  user-select: none;
  pointer-events: none;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out) 1.2s forwards;
}

.scroll-indicator span {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: var(--gray-300);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--black);
  animation: scrollLine 2s var(--ease-in-out) infinite;
}

@keyframes scrollLine {
  0% { top: -100%; }
  50% { top: 0; }
  100% { top: 100%; }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 1rem 2.5rem;
  border: 2px solid var(--black);
  background: var(--black);
  color: var(--white);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-base) var(--ease-out);
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--white);
  transform: translateY(100%);
  transition: transform var(--duration-base) var(--ease-out);
}

.btn:hover::before {
  transform: translateY(0);
}

.btn span {
  position: relative;
  z-index: 1;
  transition: color var(--duration-base);
}

.btn:hover span {
  color: var(--black);
}

.btn-outline {
  background: transparent;
  color: var(--black);
}

.btn-outline::before {
  background: var(--black);
}

.btn-outline:hover span {
  color: var(--white);
}

.btn-white {
  border-color: var(--white);
  background: var(--white);
  color: var(--black);
}

.btn-white::before {
  background: var(--black);
}

.btn-white:hover span {
  color: var(--white);
}

.btn-white-outline {
  border-color: var(--white);
  background: transparent;
  color: var(--white);
}

.btn-white-outline::before {
  background: var(--white);
}

.btn-white-outline:hover span {
  color: var(--black);
}

.btn-icon {
  font-size: 1rem;
  transition: transform var(--duration-base) var(--ease-out);
}

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

/* --- Services / Cards Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.service-card {
  padding: 3rem 2.5rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
  transition: all var(--duration-base) var(--ease-out);
}

.service-card::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--black);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out);
}

.service-card:hover {
  background: var(--gray-50);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-number {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gray-400);
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
}

.service-icon {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  display: block;
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.service-card p {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.7;
}

.service-card .card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  font-weight: 600;
  font-size: 0.875rem;
  transition: gap var(--duration-base) var(--ease-out);
}

.service-card:hover .card-arrow {
  gap: 1rem;
}

/* --- Stats / Counters --- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.stat-item {
  padding: 3rem 2rem;
  text-align: center;
  border-right: 1px solid var(--gray-200);
}

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

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--gray-500);
}

.section-dark .stat-item {
  border-color: var(--gray-800);
}

.section-dark .stat-label {
  color: var(--gray-400);
}

/* --- About / Bio --- */
.bio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.bio-image {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
}

.bio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.bio-image:hover img {
  transform: scale(1.03);
}

.bio-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid var(--black);
  transform: translate(15px, 15px);
  z-index: -1;
}

.bio-content h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 2rem;
}

.bio-content p {
  color: var(--gray-600);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.bio-quote {
  padding: 1.5rem 0 1.5rem 1.5rem;
  border-left: 3px solid var(--black);
  margin: 2rem 0;
  font-style: italic;
  font-size: 1.1rem;
}

.bio-quote cite {
  display: block;
  font-style: normal;
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-top: 0.75rem;
}

/* Skills list */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-top: 4rem;
}

.skill-group h3 {
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.skill-group h3 i {
  font-size: 1.25rem;
}

.skill-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.95rem;
  color: var(--gray-600);
  transition: all var(--duration-fast);
  padding-left: 0;
}

.skill-list li:hover {
  color: var(--black);
  padding-left: 0.5rem;
}

/* Experience timeline */
.timeline {
  max-width: 700px;
  margin: 4rem auto 0;
}

.timeline-item {
  padding: 2.5rem;
  background: var(--white);
  border-left: 3px solid var(--black);
  margin-bottom: 1.5rem;
  transition: transform var(--duration-base) var(--ease-out);
}

.timeline-item:hover {
  transform: translateX(8px);
}

.timeline-item h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.timeline-item p {
  color: var(--gray-600);
  font-size: 0.95rem;
}

/* --- Portfolio / My Work --- */
.work-hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 4rem) 2rem 4rem;
  background: var(--black);
  color: var(--white);
  text-align: center;
}

.work-hero .section-subtitle {
  margin: 0 auto;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--gray-100);
  cursor: pointer;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.portfolio-item:hover img {
  transform: scale(1.05);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay h3 {
  color: var(--white);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  transform: translateY(20px);
  transition: transform var(--duration-base) var(--ease-out);
}

.portfolio-item:hover .portfolio-overlay h3 {
  transform: translateY(0);
}

.portfolio-overlay p {
  color: var(--gray-400);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  transform: translateY(20px);
  transition: transform var(--duration-base) var(--ease-out) 0.05s;
}

.portfolio-item:hover .portfolio-overlay p {
  transform: translateY(0);
}

.portfolio-overlay .btn {
  transform: translateY(20px);
  transition: transform var(--duration-base) var(--ease-out) 0.1s,
              background var(--duration-base), color var(--duration-base);
}

.portfolio-item:hover .portfolio-overlay .btn {
  transform: translateY(0);
}

/* Work category page header */
.page-header {
  min-height: 60vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 4rem) 2rem 4rem;
  background: var(--black);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.page-header .section-subtitle {
  max-width: 600px;
}

.page-header-bg {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 50%;
  opacity: 0.05;
  font-family: var(--font-heading);
  font-size: 25vw;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  user-select: none;
}

/* --- Process / How I Work --- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.process-step {
  padding: 3rem 2rem;
  text-align: center;
  border-right: 1px solid var(--gray-200);
  position: relative;
}

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

.process-number {
  width: 70px;
  height: 70px;
  background: var(--black);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
}

.process-step h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.process-step p {
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* --- Hire Me / Contact Form --- */
.hire-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: start;
}

.hire-info h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: 1.5rem;
}

.hire-info p {
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.contact-details {
  margin-top: 2.5rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--black);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.2rem;
}

.contact-item p {
  color: var(--gray-600);
  margin: 0;
  font-size: 0.95rem;
}

/* Form */
.hire-form {
  background: var(--gray-50);
  padding: 3rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 2px solid var(--gray-300);
  background: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--gray-900);
  transition: border-color var(--duration-fast);
  appearance: none;
  -webkit-appearance: none;
}

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

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

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%23737373'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-note {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-top: 0.25rem;
}

/* Captcha */
.captcha-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--white);
  border: 2px solid var(--gray-300);
}

.captcha-question {
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
}

.captcha-input {
  border: none !important;
  border-bottom: 2px solid var(--gray-300) !important;
  padding: 0.5rem !important;
  width: 80px;
  text-align: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.captcha-input:focus {
  border-bottom-color: var(--black) !important;
}

.form-submit {
  width: 100%;
}

/* Form messages */
.form-message {
  padding: 1rem 1.5rem;
  margin-bottom: 1.5rem;
  font-weight: 500;
  display: none;
}

.form-message.success {
  background: var(--gray-100);
  border-left: 3px solid var(--black);
  display: block;
}

.form-message.error {
  background: #fef2f2;
  border-left: 3px solid #dc2626;
  color: #dc2626;
  display: block;
}

/* --- Footer --- */
.footer {
  background: var(--black);
  color: var(--white);
  padding: 5rem 2rem 2rem;
}

.footer-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--gray-800);
}

.footer-brand .logo {
  color: var(--white);
  display: inline-block;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--gray-400);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.footer-col a {
  display: block;
  color: var(--gray-400);
  padding: 0.35rem 0;
  font-size: 0.9rem;
  transition: all var(--duration-fast);
}

.footer-col a:hover {
  color: var(--white);
  padding-left: 0.5rem;
}

.footer-social {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border: 1px solid var(--gray-800);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  font-size: 0.9rem;
  padding: 0;
  transition: all var(--duration-base) var(--ease-out);
}

.footer-social a:hover {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
  padding-left: 0;
}

.footer-bottom {
  max-width: var(--container);
  margin: 0 auto;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  color: var(--gray-500);
  font-size: 0.8rem;
}

/* --- Animations (scroll-triggered) --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all var(--duration-slow) var(--ease-out);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all var(--duration-slow) var(--ease-out);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all var(--duration-slow) var(--ease-out);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: all var(--duration-slow) var(--ease-out);
}

.reveal-scale.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger children */
.stagger-children .reveal:nth-child(1) { transition-delay: 0s; }
.stagger-children .reveal:nth-child(2) { transition-delay: 0.1s; }
.stagger-children .reveal:nth-child(3) { transition-delay: 0.2s; }
.stagger-children .reveal:nth-child(4) { transition-delay: 0.3s; }
.stagger-children .reveal:nth-child(5) { transition-delay: 0.4s; }
.stagger-children .reveal:nth-child(6) { transition-delay: 0.5s; }

/* --- Marquee / Scrolling Text --- */
.marquee {
  overflow: hidden;
  padding: 2rem 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.marquee-inner {
  display: flex;
  gap: 4rem;
  animation: marquee 25s linear infinite;
  width: max-content;
}

.marquee-item {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  white-space: nowrap;
  color: var(--gray-300);
  display: flex;
  align-items: center;
  gap: 4rem;
}

.marquee-item::after {
  content: '\2022';
  color: var(--gray-400);
}

.section-dark .marquee {
  border-color: var(--gray-800);
}

.section-dark .marquee-item {
  color: var(--gray-700);
}

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

/* --- Phone Frame Cards --- */
.phone-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
}

.phone-card {
  text-align: center;
}

.phone-card-title {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.phone-frame {
  position: relative;
  background: var(--gray-950);
  border-radius: 32px;
  padding: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15), inset 0 0 0 2px var(--gray-800);
  aspect-ratio: 9 / 19.5;
  overflow: hidden;
}

.phone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 35%;
  height: 22px;
  background: var(--gray-950);
  border-radius: 0 0 14px 14px;
  z-index: 2;
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 22px;
  overflow-x: auto;
  overflow-y: hidden;
  display: flex;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.phone-screen::-webkit-scrollbar {
  display: none;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  flex-shrink: 0;
  scroll-snap-align: start;
  border-radius: 22px;
}

.phone-card-desc {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--gray-500);
  font-weight: 500;
}

@media (max-width: 1024px) {
  .phone-grid { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
}

@media (max-width: 768px) {
  .phone-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
  .phone-frame { border-radius: 24px; padding: 8px; }
  .phone-notch { height: 18px; }
  .phone-screen { border-radius: 18px; }
  .phone-screen img { border-radius: 18px; }
}

@media (max-width: 480px) {
  .phone-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .phone-frame { border-radius: 20px; padding: 6px; }
}

/* --- Partners Marquee --- */
.partners-marquee {
  overflow: hidden;
  width: 100%;
}

.partners-track {
  display: flex;
  align-items: center;
  gap: 4rem;
  animation: marquee 35s linear infinite;
  width: max-content;
}

.partners-track img {
  height: 45px;
  width: auto;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.5;
  transition: all var(--duration-base) var(--ease-out);
  flex-shrink: 0;
}

.partners-track img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* --- CTA Section --- */
.cta-section {
  padding: 8rem 2rem;
  background: var(--black);
  color: var(--white);
  text-align: center;
}

.cta-section h2 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 1.5rem;
}

.cta-section p {
  color: var(--gray-400);
  font-size: 1.1rem;
  max-width: 550px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

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

/* --- Content Sections --- */
.text-block {
  max-width: 800px;
}

.text-block p {
  color: var(--gray-600);
  line-height: 1.9;
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.text-block p:last-child {
  margin-bottom: 0;
}

.section-dark .text-block p {
  color: var(--gray-400);
}

.text-columns {
  columns: 2;
  column-gap: 3rem;
}

/* Why Choose Me / Feature List */
.features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-top: 3rem;
}

.feature-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.feature-icon {
  width: 50px;
  height: 50px;
  min-width: 50px;
  background: var(--black);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.section-dark .feature-icon {
  background: var(--white);
  color: var(--black);
}

.feature-item h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.feature-item p {
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.7;
}

.section-dark .feature-item p {
  color: var(--gray-400);
}

/* FAQ / Accordion */
.faq-list {
  max-width: 800px;
  margin: 3rem auto 0;
}

.faq-item {
  border-bottom: 1px solid var(--gray-200);
}

.section-dark .faq-item {
  border-color: var(--gray-800);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1.75rem 3rem 1.75rem 0;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  position: relative;
  color: inherit;
  line-height: 1.4;
}

.faq-question::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 300;
  transition: transform var(--duration-base) var(--ease-out);
}

.faq-item.active .faq-question::after {
  content: '\2212';
  transform: translateY(-50%) rotate(0deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-base) var(--ease-out), padding var(--duration-base);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding-bottom: 1.75rem;
  color: var(--gray-600);
  line-height: 1.8;
  font-size: 0.95rem;
}

.section-dark .faq-answer-inner {
  color: var(--gray-400);
}

/* Testimonial / Quote Cards */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.testimonial-card {
  padding: 2.5rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  position: relative;
}

.testimonial-card::before {
  content: '\201C';
  font-family: var(--font-heading);
  font-size: 4rem;
  color: var(--gray-300);
  position: absolute;
  top: 1rem;
  left: 1.5rem;
  line-height: 1;
}

.testimonial-card p {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-style: italic;
  position: relative;
  z-index: 1;
}

.testimonial-card cite {
  font-style: normal;
  font-weight: 600;
  font-size: 0.9rem;
  display: block;
}

.testimonial-card cite span {
  font-weight: 400;
  color: var(--gray-500);
  display: block;
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

/* Tech tags */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}

.tech-tag {
  padding: 0.4rem 1rem;
  border: 1px solid var(--gray-300);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  transition: all var(--duration-fast);
}

.tech-tag:hover {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.section-dark .tech-tag {
  border-color: var(--gray-700);
  color: var(--gray-400);
}

.section-dark .tech-tag:hover {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}

/* Two column content */
.content-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

/* Numbered list with descriptions */
.numbered-list {
  counter-reset: numbered;
}

.numbered-item {
  display: flex;
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--gray-200);
  align-items: flex-start;
}

.section-dark .numbered-item {
  border-color: var(--gray-800);
}

.numbered-item::before {
  counter-increment: numbered;
  content: counter(numbered, decimal-leading-zero);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-400);
  min-width: 40px;
  line-height: 1.3;
}

.numbered-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.numbered-item p {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.7;
}

.section-dark .numbered-item p {
  color: var(--gray-400);
}

@media (max-width: 768px) {
  .text-columns { columns: 1; }
  .features-list { grid-template-columns: 1fr; }
  .content-two-col { grid-template-columns: 1fr; gap: 2.5rem; }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .menu-toggle { display: flex; }
  .nav { display: none; }

  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .bio-grid { grid-template-columns: 1fr; gap: 3rem; }
  .bio-image { max-width: 500px; }
  .hire-grid { grid-template-columns: 1fr; gap: 3rem; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .process-step { border-bottom: 1px solid var(--gray-200); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 5rem 1.5rem; }
  .hero { padding: calc(var(--header-height) + 2rem) 1.5rem 2rem; }

  .services-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--gray-200); }
  .stat-item:last-child { border-bottom: none; }

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

  .process-grid { grid-template-columns: 1fr; }
  .process-step { border-right: none; }

  .form-row { grid-template-columns: 1fr; }
  .hire-form { padding: 2rem 1.5rem; }

  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }

  .page-header { min-height: 50vh; }

  .cta-section { padding: 5rem 1.5rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: clamp(2.25rem, 10vw, 3.5rem); }
  .section-title { font-size: clamp(2rem, 7vw, 3rem); }

  .btn { padding: 0.875rem 2rem; font-size: 0.8rem; }
}