/* ===================================================
   Elm St Digital — Design System
   Dark developer palette, clean modern typography
   =================================================== */

/* === CSS Custom Properties === */
:root {
  /* Colors — Accent */
  --color-accent: #38bdf8;
  --color-accent-light: #7dd3fc;
  --color-accent-dark: #0284c7;
  --color-accent-glow: rgba(56, 189, 248, 0.2);

  /* Colors — Warm accent (sparingly) */
  --color-warm: #f59e0b;

  /* Colors — Backgrounds */
  --color-bg-primary: #0a0e17;
  --color-bg-secondary: #111827;
  --color-bg-elevated: #1e2535;
  --color-bg-card: rgba(30, 37, 53, 0.85);
  --color-bg-glass: rgba(30, 37, 53, 0.6);

  /* Colors — Text */
  --color-text-primary: #f1f5f9;
  --color-text-secondary: rgba(241, 245, 249, 0.7);
  --color-text-muted: rgba(241, 245, 249, 0.4);

  /* Colors — Borders */
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(56, 189, 248, 0.4);
  --color-border-subtle: rgba(255, 255, 255, 0.12);

  /* Colors — Misc */
  --color-success: #22c55e;
  --color-error: #ef4444;

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

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --border-radius: 12px;
  --border-radius-sm: 8px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.5);
  --shadow-accent: 0 4px 24px rgba(56, 189, 248, 0.15);
  --shadow-accent-strong: 0 8px 30px rgba(56, 189, 248, 0.25);
}

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

.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;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-accent-light);
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text-primary);
}

ul {
  list-style: none;
}

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

.section {
  padding: var(--space-3xl) 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

.section-title .accent {
  color: var(--color-accent);
}

.section-subtitle {
  font-family: var(--font-body);
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  line-height: 1.8;
}

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

.text-center .section-subtitle {
  margin: 0 auto;
}

.mono {
  font-family: var(--font-mono);
}

/* === Scroll Reveal Animation === */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.25s; }
.reveal-delay-4 { transition-delay: 0.35s; }

/* === Navigation === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--space-sm) 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid var(--color-border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Wordmark */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.nav-wordmark {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 300;
  color: var(--color-text-primary);
  letter-spacing: 3px;
  text-transform: uppercase;
  transition: color var(--transition-fast);
}

.nav-wordmark span {
  color: var(--color-accent);
  font-weight: 400;
}

.nav-logo:hover .nav-wordmark {
  color: var(--color-accent-light);
}

/* Nav logo icon — hidden by default, for future logo */
.nav-logo-icon {
  display: none;
  width: 36px;
  height: 36px;
  min-width: 36px;
}

.nav-logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

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

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.5px;
  transition: color var(--transition-fast);
  position: relative;
}

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

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

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

.nav-links a.active {
  color: var(--color-accent);
}

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

/* Nav CTA button */
.nav-cta {
  background: var(--color-accent) !important;
  color: var(--color-bg-primary) !important;
  padding: 0.55rem 1.4rem !important;
  border-radius: var(--border-radius-sm) !important;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  letter-spacing: 0.5px !important;
  transition: all var(--transition-fast) !important;
  box-shadow: var(--shadow-accent);
}

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

.nav-cta:hover {
  background: var(--color-accent-dark) !important;
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow-accent-strong) !important;
  color: var(--color-text-primary) !important;
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

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

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

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

/* === Hero Section (Homepage) === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-bg-primary);
}

/* Dot grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(56, 189, 248, 0.1) 1px, transparent 0);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 50% at 50% 50%, black 20%, transparent 100%);
  z-index: 0;
}

/* Subtle center glow */
.hero::after {
  content: '';
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  padding: var(--space-3xl) var(--space-md);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

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

.hero-description {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: float 3s ease-in-out infinite;
  z-index: 1;
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-6px); }
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.9rem 2rem;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-accent-strong);
  color: var(--color-bg-primary);
}

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

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

.btn-text {
  background: none;
  border: none;
  color: var(--color-accent);
  padding: 0;
  font-weight: 600;
}

.btn-text:hover {
  color: var(--color-accent-light);
}

/* === Value Proposition Cards === */
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.value-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  transition: all var(--transition-fast);
}

.value-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-accent);
}

.value-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin: 0 auto var(--space-sm);
  border-radius: 12px;
  background: var(--color-accent-glow);
  color: var(--color-accent);
}

.value-card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

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

/* === Portfolio Cards === */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.portfolio-card {
  display: block;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: all var(--transition-base);
  text-decoration: none;
  color: inherit;
}

.portfolio-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-accent);
  color: inherit;
}

.portfolio-card-image {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--color-bg-secondary);
}

.portfolio-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.portfolio-card-info {
  padding: var(--space-lg);
}

.portfolio-card-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
  letter-spacing: 1px;
  text-transform: uppercase;
  display: block;
  margin-bottom: var(--space-xs);
}

.portfolio-card-info h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-xs);
}

.portfolio-card-info p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.portfolio-card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
}

.portfolio-card-link .arrow {
  transition: transform var(--transition-fast);
}

.portfolio-card:hover .portfolio-card-link .arrow {
  transform: translateX(4px);
}

/* === Portfolio Detail (Work Page) === */
.project-detail {
  padding: var(--space-2xl) 0;
}

.project-detail + .project-detail {
  border-top: 1px solid var(--color-border);
}

.project-header {
  margin-bottom: var(--space-lg);
}

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

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.3rem 0.7rem;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text-secondary);
  letter-spacing: 0.5px;
}

/* === Feature Split (image + content) === */
.feature-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.feature-split.reverse {
  direction: rtl;
}

.feature-split.reverse > * {
  direction: ltr;
}

.feature-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  aspect-ratio: 4/3;
  background: var(--color-bg-secondary);
}

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

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

.feature-content .section-subtitle {
  margin-bottom: var(--space-md);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.feature-list-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1rem;
  color: var(--color-text-secondary);
}

.feature-list-item .icon {
  width: 32px;
  height: 32px;
  min-width: 32px;
  background: var(--color-accent-glow);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

/* === Services Grid === */
.services-category {
  margin-bottom: var(--space-xl);
}

.services-category:last-child {
  margin-bottom: 0;
}

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

.service-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.service-item:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.service-item-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: var(--color-accent-glow);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.service-item h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.service-item p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* === How It Works Process === */
.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.process-step {
  text-align: center;
  padding: var(--space-lg);
}

.process-step-number {
  width: 44px;
  height: 44px;
  margin: 0 auto var(--space-md);
  background: var(--color-accent);
  color: var(--color-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
}

.process-step h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.process-step p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* === Testimonials === */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.testimonial-card {
  position: relative;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  text-align: left;
  transition: all var(--transition-fast);
}

.testimonial-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-accent);
}

.testimonial-quote-icon {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  color: var(--color-accent);
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

.testimonial-name {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* === FAQ Accordion === */
.faq-list {
  max-width: 800px;
  margin: var(--space-xl) auto 0;
}

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

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: var(--space-md) 0;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color var(--transition-fast);
}

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

.faq-icon {
  font-size: 1.4rem;
  transition: transform var(--transition-fast);
  color: var(--color-accent);
  font-weight: 300;
}

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

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

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: var(--space-md);
}

.faq-answer p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-size: 0.95rem;
}

.faq-answer a {
  color: var(--color-accent);
}

/* === Promo Banner (CTA sections) === */
.promo-banner {
  position: relative;
  padding: var(--space-3xl) 0;
  overflow: hidden;
  background: var(--color-bg-secondary);
}

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

.promo-banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.promo-banner-content .section-title {
  margin-bottom: var(--space-md);
}

.promo-banner-content p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

/* === Pricing Display === */
.pricing-hero-price {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.pricing-hero-note {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
}

.pricing-includes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.pricing-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.pricing-item .check {
  color: var(--color-success);
  font-size: 1.1rem;
  min-width: 24px;
}

/* === Contact Form === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  align-items: start;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

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

.form-success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  color: var(--color-success);
  font-size: 0.95rem;
  display: none;
}

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

/* === Contact Methods === */
.contact-info {
  font-style: normal;
}

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

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  color: inherit;
  text-decoration: none;
}

a.contact-method:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-accent);
  color: inherit;
}

.contact-method-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--color-accent);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-bg);
}

.contact-method-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.contact-method-value {
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: 1rem;
}

/* === Page Hero (sub-pages) === */
.page-hero {
  position: relative;
  min-height: 35vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-bg-primary);
  padding-top: 80px;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(56, 189, 248, 0.06) 1px, transparent 0);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 60% 80% at 50% 100%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 60% 80% at 50% 100%, black 20%, transparent 100%);
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-border-subtle), transparent);
}

.page-hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  padding: var(--space-xl) var(--space-md);
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin-bottom: var(--space-sm);
}

.page-hero p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 550px;
  margin: 0 auto;
  line-height: 1.7;
}

/* === Footer === */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) 0 var(--space-lg);
}

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

.footer-brand {
  max-width: 350px;
}

.footer-brand .nav-wordmark {
  display: block;
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.footer-column h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

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

.footer-column ul li a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.footer-column ul li a:hover {
  color: var(--color-text-primary);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

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

.footer-credit {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.5px;
}

/* === Separator === */
.section-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-border-subtle), transparent);
  border: none;
}

/* === Responsive === */
@media (max-width: 1024px) {
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }

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

  .feature-split {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .feature-split.reverse {
    direction: ltr;
  }

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

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

@media (max-width: 900px) {
  .services-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 340px;
    height: 100vh;
    height: 100dvh;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-xl);
    border-left: 1px solid var(--color-border);
    transition: right var(--transition-base);
    z-index: 1001;
  }

  .nav-links.active {
    right: 0;
  }

  .nav-toggle {
    display: flex;
    z-index: 1002;
  }

  .hero h1 {
    font-size: clamp(1.8rem, 8vw, 2.8rem);
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .value-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .testimonial-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }

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

  .process-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

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

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

  .page-hero h1 {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
  }
}

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }

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

  .nav-wordmark {
    font-size: 1rem;
    letter-spacing: 2px;
  }
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero-scroll-hint {
    animation: none;
  }
}