:root {
  color-scheme: dark;
  --color-bg: #0a0a0a;
  --color-bg-alt: #111111;
  --color-bg-card: #161616;
  --color-text: #fafafa;
  --color-text-muted: #888888;
  --color-accent: #54c3ea;
  --color-accent-hover: #6fd1f0;
  --color-accent-glow: rgba(84, 195, 234, 0.25);
  --color-accent-secondary: #7dd8f2;
  --color-accent-fill: #54c3ea;
  --color-accent-fill-hover: #6fd1f0;
  --color-accent-fill-glow: rgba(84, 195, 234, 0.3);
  --color-btn-text: #0a0a0a;
  --color-header-bg: rgba(10, 10, 10, 0.85);
  --color-header-bg-solid: rgba(10, 10, 10, 0.98);
  --color-accent-soft: rgba(84, 195, 234, 0.12);
  --color-accent-soft-hover: rgba(84, 195, 234, 0.22);
  --color-success: #22c55e;
  --color-error: #ef4444;
  --color-border: #222222;
  --color-border-light: #333333;
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1100px;
  --header-height: 80px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --color-bg: #ffffff;
  --color-bg-alt: #f2f7fa;
  --color-bg-card: #eaf3f9;
  --color-text: #0f2434;
  --color-text-muted: #56687a;
  --color-accent: #0b6ea4;
  --color-accent-hover: #0d7fb8;
  --color-accent-glow: rgba(11, 110, 164, 0.18);
  --color-accent-secondary: #54c3ea;
  --color-accent-fill: #54c3ea;
  --color-accent-fill-hover: #3fb4dd;
  --color-accent-fill-glow: rgba(84, 195, 234, 0.3);
  --color-btn-text: #0f2434;
  --color-header-bg: rgba(255, 255, 255, 0.85);
  --color-header-bg-solid: rgba(255, 255, 255, 0.98);
  --color-accent-soft: rgba(84, 195, 234, 0.16);
  --color-accent-soft-hover: rgba(84, 195, 234, 0.3);
  --color-success: #15803d;
  --color-error: #b91c1c;
  --color-border: #dde7ee;
  --color-border-light: #c3d2dd;
}

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

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  position: relative;
}



img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-fill), var(--color-accent-secondary));
  z-index: 1001;
  width: 0%;
  transition: width 0.1s linear;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-header-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

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

.nav-list {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-list a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--color-text);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px;
  height: 24px;
  position: relative;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  position: absolute;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
  content: '';
}

.nav-toggle span { top: 50%; transform: translateY(-50%); }
.nav-toggle span::before { top: -8px; }
.nav-toggle span::after { top: 8px; }

.nav-toggle.active span { background: transparent; }
.nav-toggle.active span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.active span::after { top: 0; transform: rotate(-45deg); }

/* Theme Toggle */
.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition);
}

.theme-toggle:hover {
  color: var(--color-accent);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

.theme-toggle .icon-moon { display: none; }

:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.theme-toggle--fixed {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 4rem) 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--color-accent-fill-glow) 0%, transparent 70%);
  pointer-events: none;
  animation: heroGlow 8s ease-in-out infinite alternate;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.12) 0%, transparent 70%);
  pointer-events: none;
  animation: heroGlow2 10s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-60px, 40px) scale(1.1); }
}

@keyframes heroGlow2 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(80px, -30px) scale(1.15); }
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-tagline {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero h1 .highlight {
  color: var(--color-accent);
  position: relative;
}

.hero-desc {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

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

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; height: 40px; }
  50% { opacity: 1; height: 50px; }
}

/* Page Hero (inner pages) */
.page-hero {
  padding: calc(var(--header-height) + 6rem) 1.5rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-accent-fill-glow) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.page-hero p {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* Buttons */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  cursor: pointer;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--color-accent-fill);
  color: var(--color-btn-text);
  border: none;
  box-shadow: 0 4px 20px var(--color-accent-fill-glow);
}

.btn-primary:hover {
  background: var(--color-accent-fill-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--color-accent-fill-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-light);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Sections */
section {
  padding: 6rem 0;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  text-align: center;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: -0.5rem auto 3rem;
  font-size: 1.1rem;
}

/* Services */
.services {
  background: var(--color-bg-alt);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.service-grid.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.feature-grid.grid-4 {
  grid-template-columns: repeat(2, 1fr);
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-fill), var(--color-accent-secondary), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

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

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

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

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

.service-icon {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

.service-card:hover .service-icon {
  background: var(--color-accent-soft-hover);
}

/* Pricing */
.pricing-intro {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.price-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.price-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 40px var(--color-accent-fill-glow);
}

.featured-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent-fill);
  color: var(--color-btn-text);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 1rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.price-header {
  margin-bottom: 0.5rem;
}

.price-header h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.price-card .price {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--color-accent);
}

.price-card .price-num {
  letter-spacing: -0.02em;
}

.price-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.price-features {
  list-style: none;
  margin-bottom: 2rem;
  flex: 1;
}

.price-features li {
  padding: 0.6rem 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.price-features li::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: 600;
  flex-shrink: 0;
}

.price-card .btn-primary,
.price-card .btn-secondary {
  width: 100%;
}

.addons {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.addons h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.addon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.addon-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
}

.addon-name {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.addon-price {
  font-weight: 600;
  color: var(--color-text);
  font-family: var(--font-heading);
}

/* Section Dividers */
section + section {
  position: relative;
}

.services + .pricing,
.pricing + .process,
.process + .work,
.work + .reviews,
.reviews + .about,
.about + .cta-section {
  margin-top: -3rem;
}

.services + .pricing::before,
.pricing + .process::before,
.process + .work::before,
.work + .reviews::before,
.reviews + .about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border-light), transparent);
}

/* Work */
.work-intro {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.work-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
}

.work-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.work-card--reverse .work-image {
  order: 2;
}

.work-image {
  aspect-ratio: 4 / 3;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  box-shadow: 0 24px 60px var(--color-accent-fill-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  transition: transform var(--transition), border-color var(--transition);
}

.work-image:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
}

.work-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.work-placeholder {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-text-muted);
}

.work-content {
  padding: 0;
}

.work-content h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.work-content p {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.work-link {
  color: var(--color-accent);
  font-size: 0.95rem;
  font-weight: 600;
}

/* Process */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.process-step {
  text-align: center;
}

.process-step {
  position: relative;
}

.process-step::before {
  content: '';
  position: absolute;
  top: 1.5rem;
  right: -1rem;
  width: calc(100% + 2rem);
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  opacity: 0.15;
  pointer-events: none;
}

.process-step:last-child::before {
  display: none;
}

.step-num {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.25;
  display: block;
  margin-bottom: 0.5rem;
  transition: opacity 0.6s ease;
}

.step-num.counted {
  opacity: 0.6;
}

.process-step h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.process-step p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

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

.review-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.review-card p {
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  color: var(--color-text-muted);
}

.review-card cite {
  font-style: normal;
  font-weight: 600;
  color: var(--color-text);
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 4rem;
  align-items: center;
}

.about-image {
  aspect-ratio: 1;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-img-placeholder {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-text-muted);
}

.about-content h2 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.about-content h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.about-content p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

/* CTA Section */
.cta-section {
  background: var(--color-bg-alt);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--color-accent-fill-glow) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.cta-section p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto 2rem;
}

/* Feature Detail (inner pages) */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
}

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

.feature-card h3:first-child {
  font-size: 1.3rem;
}



.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.feature-card ul {
  list-style: none;
  margin-top: 1rem;
}

.feature-card li {
  padding: 0.4rem 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.feature-card li::before {
  content: '→';
  color: var(--color-accent);
  font-weight: 600;
  flex-shrink: 0;
}

.card-link {
  display: inline-block;
  margin-top: 1.25rem;
  color: var(--color-accent);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: opacity var(--transition);
}

.card-link:hover {
  opacity: 0.8;
}

/* FAQ */
.faq-grid {
  max-width: 750px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  padding: 1.25rem 1.5rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-question::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--color-accent);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.25rem;
}

.faq-answer p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Contact */
.contact-intro {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  font-size: 1.1rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 3rem;
  align-items: start;
}

.contact-form {
  max-width: 600px;
}

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

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition);
}

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

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

.contact-form textarea {
  resize: vertical;
  min-height: 150px;
  margin-bottom: 1rem;
}

.contact-form .btn-primary {
  width: 100%;
}

.form-status {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.95rem;
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status.success { color: var(--color-success); }
.form-status.error { color: var(--color-error); }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-info-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.contact-info-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.contact-info-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Footer */
.site-footer {
  padding: 3rem 0;
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand .logo {
  display: block;
  margin-bottom: 0.25rem;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: color var(--transition);
}

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

.footer-copy {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* 404 Page */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.error-page h1 {
  font-family: var(--font-heading);
  font-size: clamp(4rem, 10vw, 8rem);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.error-page h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 1rem;
}

.error-page p {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.error-page .btn-primary {
  display: inline-flex;
}

/* Staggered Animation Delays */
[data-aos].aos-delay-1 { transition-delay: 0.1s; }
[data-aos].aos-delay-2 { transition-delay: 0.2s; }
[data-aos].aos-delay-3 { transition-delay: 0.3s; }
[data-aos].aos-delay-4 { transition-delay: 0.4s; }
[data-aos].aos-delay-5 { transition-delay: 0.5s; }
[data-aos].aos-delay-6 { transition-delay: 0.6s; }

/* Price Card Featured Enhancement */
.price-card.featured {
  position: relative;
  overflow: hidden;
}

.price-card.featured::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent, rgba(84, 195, 234, 0.04), transparent, rgba(84, 195, 234, 0.04), transparent);
  animation: featureRotate 8s linear infinite;
  pointer-events: none;
}

@keyframes featureRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.price-card.featured > * {
  position: relative;
  z-index: 1;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .nav-list {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-header-bg-solid);
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
  }

  .nav-list.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-image {
    max-width: 280px;
    margin: 0 auto;
  }

  .work-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .work-card {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .work-card--reverse .work-image {
    order: 0;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

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

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

  .process-step::before {
    display: none;
  }

  .service-grid.grid-4,
  .feature-grid.grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .service-grid.grid-4,
  .feature-grid.grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Portfolio Page (portfolio.html)
   ============================================================ */

/* Hero */
.pf-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 4rem) 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.pf-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--color-accent-fill-glow) 0%, transparent 70%);
  pointer-events: none;
  animation: heroGlow 8s ease-in-out infinite alternate;
}

.pf-hero::after {
  content: '';
  position: absolute;
  bottom: -25%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
  pointer-events: none;
  animation: heroGlow2 10s ease-in-out infinite alternate;
}

.hero-grid,
.pf-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
}

.pf-hero-tagline {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
}

.pf-hero-copy h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.pf-hero-desc {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 540px;
  margin-bottom: 2rem;
}

.pf-metric-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.pf-pill {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
}

.hero-photo,
.pf-hero-photo {
  max-width: 300px;
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  box-shadow: 0 24px 60px var(--color-accent-fill-glow);
  margin: 0 auto;
}

.hero-photo img,
.pf-hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Philosophy */
.pf-philosophy {
  background: var(--color-bg-alt);
}

.pf-philosophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.pf-philosophy-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
}

.pf-philosophy-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
}

.pf-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.pf-icon svg {
  width: 24px;
  height: 24px;
}

.pf-philosophy-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.pf-philosophy-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Case studies */
.pf-case-card {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  transition: all var(--transition);
}

.pf-case-card + .pf-case-card {
  margin-top: 1.5rem;
}

.pf-case-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
}

.pf-case-reverse .pf-case-copy { order: 2; }
.pf-case-reverse .pf-case-media { order: 1; }

.pf-case-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.pf-case-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.5;
  line-height: 1;
}

.pf-case-tag {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  border: 1px solid var(--color-border-light);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
}

.pf-case-copy h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.pf-case-block {
  margin-bottom: 1.25rem;
}

.pf-case-block h4 {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 0.4rem;
}

.pf-case-block p {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
}

.pf-result-text {
  background: var(--color-bg-alt);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  color: var(--color-text) !important;
}

.pf-result-text a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.pf-tech-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.pf-tech-tags li {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.7rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.pf-case-media {
  aspect-ratio: 16 / 10;
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border-light);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.pf-case-media svg {
  width: 42px;
  height: 42px;
  color: var(--color-accent);
  opacity: 0.6;
}

.pf-media-link {
  display: inline-block;
  margin-top: 0.25rem;
  color: var(--color-accent);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
}

.pf-media-link:hover {
  background: var(--color-accent-fill);
  color: var(--color-btn-text);
  border-color: var(--color-accent-fill);
}

.pf-case-media-img {
  padding: 0;
  border: none;
  background: none;
  overflow: hidden;
}

.pf-case-media-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-md);
}

/* Case 01 — larger screenshot */
.pf-case-media-big {
  grid-template-columns: 1fr 1.05fr;
}

/* Case 02 — small deck-link strip */
.pf-case-narrow-media {
  grid-template-columns: 0.6fr 1.4fr;
}

.pf-case-media-sm {
  aspect-ratio: auto;
  flex-direction: row;
  justify-content: flex-start;
  gap: 0.6rem;
  padding: 0.9rem 1.1rem;
}

.pf-case-media-sm svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.pf-case-media-sm .pf-media-link {
  margin-top: 0;
  margin-left: auto;
  padding: 0.3rem 0.8rem;
  font-size: 0.8rem;
  white-space: nowrap;
}

/* Speaking photo — no cropping */
.pf-case-media-nocrop {
  aspect-ratio: auto;
}

.pf-case-media-nocrop img {
  width: auto;
  max-width: 100%;
  max-height: 460px;
  height: auto;
  object-fit: contain;
}

/* Case 04 — text only */
.pf-case-textonly {
  grid-template-columns: 1fr;
}

.pf-case-media-deck svg {
  color: var(--color-accent);
}

/* Speaking section */
.pf-speaking .pf-case-num {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 1;
  color: var(--color-accent);
  border: 1px solid var(--color-border-light);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  line-height: normal;
}

.pf-speaking .pf-case-meta {
  gap: 0.6rem;
}

/* Results band */
.pf-results {
  background: var(--color-bg-alt);
}

.pf-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.pf-stat {
  text-align: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  transition: all var(--transition);
}

.pf-stat:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
}

.pf-stat-num {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.1;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.35rem;
}

.pf-stat-unit {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.pf-stat-label {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  max-width: 260px;
  margin: 0 auto;
}

/* Capabilities tabs */
.pf-tabs {
  max-width: 760px;
  margin: 0 auto;
}

.pf-tab-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.pf-tab-button {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.7rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.pf-tab-button:hover {
  border-color: var(--color-border-light);
  color: var(--color-text);
}

.pf-tab-button.active {
  background: var(--color-accent-fill);
  border-color: var(--color-accent-fill);
  color: var(--color-btn-text);
  box-shadow: 0 4px 20px var(--color-accent-fill-glow);
}

.pf-tab-button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.pf-tab-panel {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.pf-tab-panel.active {
  animation: tabFadeIn 0.4s ease both;
}

.pf-tag-cloud {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.pf-tag-cloud li {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  color: var(--color-text);
}

/* Contact */
.pf-contact {
  background: var(--color-bg-alt);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pf-contact::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--color-accent-fill-glow) 0%, transparent 70%);
  pointer-events: none;
}

.pf-contact .container {
  position: relative;
  z-index: 1;
}

.pf-contact h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.pf-contact > .container > p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto 2rem;
}

.pf-contact-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.pf-contact-meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Portfolio responsive */
@media (max-width: 900px) {
  .hero-grid,
  .pf-hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-photo,
  .pf-hero-photo {
    max-width: 240px;
  }

  .pf-case-card {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .pf-case-reverse .pf-case-copy { order: 1; }
  .pf-case-reverse .pf-case-media { order: 2; }
}

@media (max-width: 768px) {
  .pf-case-card {
    padding: 1.5rem;
  }

  .pf-tab-panel {
    padding: 1.5rem;
  }
}


/* ============ animations.css (merged) ============ */

/* Fade In Up */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeInUp 0.7s ease-out forwards;
}

/* Scale In */
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

.scale-in {
  opacity: 0;
  transform: scale(0.92);
  animation: scaleIn 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* Staggered Children — hidden states only apply when JS is active,
   so content stays visible for no-JS users and AI agents. */
html.js [data-aos="fade-up"] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

html.js [data-aos="fade-up"].aos-animate {
  opacity: 1;
  transform: none;
}

html.js [data-aos="scale"] {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

html.js [data-aos="scale"].aos-animate {
  opacity: 1;
  transform: none;
}

/* Tab panel fade (portfolio) */
@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* Prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  .fade-in-up,
  .scale-in {
    animation: none;
    opacity: 1;
    transform: none;
  }

  [data-aos] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}