/* ============================================
   TECHBRIGHT - Design System & Styles
   ============================================ */

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

/* --- Design Tokens --- */
:root {
  /* Colors – Dark (default) */
  --c-bg: #0b0f17;
  --c-bg-raised: #111520;
  --c-surface: #161b28;
  --c-surface-hover: #1c2235;
  --c-border: #1e2536;
  --c-border-subtle: rgba(255, 255, 255, 0.04);
  --c-text: #f0f2f5;
  --c-text-secondary: #8b95a8;
  --c-text-tertiary: #5a6478;
  --c-accent: #00d4aa;
  --c-accent-hover: #00f0c0;
  --c-accent-subtle: rgba(0, 212, 170, 0.08);
  --c-accent-glow: rgba(0, 212, 170, 0.15);
  --c-violet: #7c5cfc;
  --c-violet-subtle: rgba(124, 92, 252, 0.08);
  --c-overlay: rgba(11, 15, 23, 0.8);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.75rem;
  --text-5xl: 3.5rem;

  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;

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

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

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

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px var(--c-accent-glow);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;

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


/* --- Base --- */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--nav-height);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--c-text);
  background-color: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Subtle noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

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

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

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

/* --- Focus --- */
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --- Typography --- */
h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: var(--leading-tight);
  font-weight: var(--weight-bold);
  color: var(--c-text);
  letter-spacing: -0.02em;
}

h1 {
  font-size: var(--text-4xl);
}

h2 {
  font-size: var(--text-3xl);
}

h3 {
  font-size: var(--text-xl);
}

p {
  color: var(--c-text-secondary);
}

.text-accent {
  color: var(--c-accent);
}

.text-gradient {
  background: linear-gradient(135deg, var(--c-accent), var(--c-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

section {
  padding: var(--space-20) 0;
}

@media (min-width: 768px) {
  section {
    padding: var(--space-32) 0;
  }
}

/* --- Section Header --- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-12);
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-accent);
  margin-bottom: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background: var(--c-accent-subtle);
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 212, 170, 0.12);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  font-size: var(--text-lg);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: var(--c-overlay);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--c-border-subtle);
  transition: background var(--duration-normal) var(--ease-out);
}

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

.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav__logo:hover {
  opacity: 0.85;
}

.nav__logo img {
  height: 28px;
  width: auto;
}

.nav__links {
  display: none;
  list-style: none;
  gap: var(--space-1);
  align-items: center;
}

@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }
}

.nav__links a {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: var(--c-text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out);
}

.nav__links a:hover,
.nav__links a[aria-current='page'] {
  color: var(--c-text);
  background: var(--c-border-subtle);
}

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


/* Mobile Nav Toggle */
.nav__toggle {
  appearance: none;
  border: none;
  background: none;
  color: var(--c-text);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

@media (min-width: 768px) {
  .nav__toggle {
    display: none;
  }
}

.nav__toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  position: relative;
  transition: background var(--duration-fast);
}

.nav__toggle span::before,
.nav__toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--duration-normal) var(--ease-out);
}

.nav__toggle span::before {
  transform: translateY(-6px);
}

.nav__toggle span::after {
  transform: translateY(6px);
}

.nav__toggle[aria-expanded='true'] span {
  background: transparent;
}

.nav__toggle[aria-expanded='true'] span::before {
  transform: rotate(45deg);
}

.nav__toggle[aria-expanded='true'] span::after {
  transform: rotate(-45deg);
}

/* Mobile Menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--c-bg);
  padding: var(--space-8) var(--space-6);
  z-index: 999;
  overflow-y: auto;
}

.nav__mobile.is-open {
  display: block;
}

.nav__mobile a {
  display: block;
  padding: var(--space-4) 0;
  font-size: var(--text-xl);
  font-weight: var(--weight-medium);
  color: var(--c-text-secondary);
  border-bottom: 1px solid var(--c-border-subtle);
}

.nav__mobile a:hover,
.nav__mobile a[aria-current='page'] {
  color: var(--c-text);
}

@media (min-width: 768px) {
  .nav__mobile {
    display: none !important;
  }
}

/* --- Spacer for fixed nav --- */
.nav-spacer {
  height: var(--nav-height);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  line-height: 1;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.btn--primary {
  background: var(--c-accent);
  color: #0b0f17;
  border-color: var(--c-accent);
}

.btn--primary:hover {
  background: var(--c-accent-hover);
  border-color: var(--c-accent-hover);
  color: #0b0f17;
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

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

.btn--secondary:hover {
  border-color: var(--c-text-tertiary);
  background: var(--c-surface);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--c-text-secondary);
  border-color: transparent;
  padding: var(--space-2) var(--space-4);
}

.btn--ghost:hover {
  color: var(--c-text);
  background: var(--c-accent-subtle);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-md);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn--nav {
  display: none;
}

@media (min-width: 768px) {
  .btn--nav {
    display: inline-flex;
  }
}

/* --- Cards --- */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
}

.card:hover {
  border-color: var(--c-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--c-accent-subtle);
  border: 1px solid rgba(0, 212, 170, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--c-accent);
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card h3 {
  margin-bottom: var(--space-3);
}

.card p {
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.card__outcomes {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.card__outcomes li {
  font-size: var(--text-xs);
  color: var(--c-accent);
  background: var(--c-accent-subtle);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 212, 170, 0.1);
}

/* --- Grid --- */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 {
  grid-template-columns: 1fr;
}

.grid--3 {
  grid-template-columns: 1fr;
}

.grid--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Hero (base - used by services / contact) --- */
.hero {
  padding: var(--space-16) 0 var(--space-20);
  position: relative;
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero {
    padding: var(--space-24) 0 var(--space-32);
  }
}

.hero h1 {
  margin-bottom: var(--space-6);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--c-text-secondary);
  max-width: 520px;
  margin-bottom: var(--space-8);
  line-height: var(--leading-normal);
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.hero__bullets {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.hero__bullets li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--c-text-secondary);
  font-weight: var(--weight-medium);
}

.hero__bullets .bullet-icon {
  width: 20px;
  height: 20px;
  color: var(--c-accent);
  flex-shrink: 0;
}

/* --- Hero - Animated variant (home page canvas) --- */
.hero--animated {
  min-height: max(580px, 88vh);
  display: flex;
  align-items: center;
  padding: var(--space-20) 0 var(--space-24);
}

@media (min-width: 768px) {
  .hero--animated {
    padding: var(--space-24) 0 var(--space-32);
  }
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(
      to right,
      var(--c-bg) 0%,
      rgba(11, 15, 23, 0.88) 20%,
      rgba(11, 15, 23, 0.55) 45%,
      rgba(11, 15, 23, 0.18) 72%,
      rgba(11, 15, 23, 0.08) 100%
    ),
    linear-gradient(
      to top,
      var(--c-bg) 0%,
      rgba(11, 15, 23, 0.6) 12%,
      transparent 30%
    ),
    linear-gradient(
      to bottom,
      rgba(11, 15, 23, 0.35) 0%,
      transparent 12%
    );
}

@media (max-width: 1023px) {
  .hero__overlay {
    background:
      linear-gradient(
        to bottom,
        rgba(11, 15, 23, 0.45) 0%,
        rgba(11, 15, 23, 0.35) 50%,
        rgba(11, 15, 23, 0.55) 80%,
        var(--c-bg) 100%
      );
  }
}

.hero--animated .hero__content {
  position: relative;
  z-index: 2;
  max-width: 620px;
}

.hero--animated h1 {
  font-size: var(--text-4xl);
}

@media (min-width: 768px) {
  .hero--animated h1 {
    font-size: var(--text-5xl);
  }
}

/* Centered hero overlay (services page - text centered, so radial vignette) */
.hero--animated.hero--centered .hero__overlay {
  background:
    radial-gradient(
      ellipse 70% 60% at 50% 50%,
      rgba(11, 15, 23, 0.6) 0%,
      rgba(11, 15, 23, 0.3) 50%,
      rgba(11, 15, 23, 0.12) 100%
    ),
    linear-gradient(
      to top,
      var(--c-bg) 0%,
      rgba(11, 15, 23, 0.6) 12%,
      transparent 30%
    ),
    linear-gradient(
      to bottom,
      rgba(11, 15, 23, 0.35) 0%,
      transparent 12%
    );
}

@media (max-width: 1023px) {
  .hero--animated.hero--centered .hero__overlay {
    background:
      rgba(11, 15, 23, 0.5),
      linear-gradient(
        to bottom,
        rgba(11, 15, 23, 0.3) 0%,
        rgba(11, 15, 23, 0.2) 50%,
        rgba(11, 15, 23, 0.5) 80%,
        var(--c-bg) 100%
      );
  }
}

.hero--animated.hero--centered .hero__content {
  text-align: center;
}

/* --- Social Proof --- */
.proof {
  border-top: 1px solid var(--c-border-subtle);
  border-bottom: 1px solid var(--c-border-subtle);
  padding: var(--space-12) 0;
  background: var(--c-bg-raised);
}

.proof__label {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--c-text-tertiary);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-8);
}

.proof__chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

.proof__chip {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--c-text-secondary);
  font-weight: var(--weight-medium);
}

.proof__chip svg {
  width: 18px;
  height: 18px;
  color: var(--c-accent);
  flex-shrink: 0;
}

/* --- Process Steps --- */
.process {
  counter-reset: step;
}

.process__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .process__steps {
    grid-template-columns: repeat(4, 1fr);
  }
}

.process__step {
  position: relative;
  padding: var(--space-8);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  counter-increment: step;
}

.process__step::before {
  content: counter(step, decimal-leading-zero);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  color: var(--c-border);
  line-height: 1;
  margin-bottom: var(--space-4);
  display: block;
}

.process__step h3 {
  margin-bottom: var(--space-2);
}

.process__step p {
  font-size: var(--text-sm);
}

/* --- Case Studies --- */
.cases__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .cases__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.case {
  padding: var(--space-8);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
}

.case__label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-accent);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-4);
}

.case h3 {
  margin-bottom: var(--space-4);
}

.case__detail {
  margin-bottom: var(--space-3);
}

.case__detail strong {
  font-size: var(--text-sm);
  color: var(--c-text);
  display: block;
  margin-bottom: var(--space-1);
}

.case__detail p {
  font-size: var(--text-sm);
}

.case__result {
  margin-top: var(--space-5);
  padding: var(--space-4);
  background: var(--c-accent-subtle);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 212, 170, 0.1);
}

.case__result strong {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  display: block;
  margin-bottom: var(--space-1);
}

.case__result p {
  font-size: var(--text-sm);
  color: var(--c-text);
}

/* --- Tech Stack --- */
.stack {
  border-top: 1px solid var(--c-border-subtle);
  border-bottom: 1px solid var(--c-border-subtle);
  padding: var(--space-10) 0;
  background: var(--c-bg-raised);
}

.stack__label {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--c-text-tertiary);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-6);
}

.stack__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  list-style: none;
}

.stack__item {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--c-text-secondary);
  padding: var(--space-2) var(--space-4);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* --- CTA Band --- */
.cta-band {
  text-align: center;
  padding: var(--space-20) 0;
  position: relative;
}

.cta-band h2 {
  margin-bottom: var(--space-4);
}

.cta-band p {
  font-size: var(--text-lg);
  margin-bottom: var(--space-8);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-band__glow {
  position: absolute;
  width: 400px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(ellipse, var(--c-accent-glow) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.5;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--c-border-subtle);
  padding: var(--space-12) 0 var(--space-8);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
}

.footer__links a {
  font-size: var(--text-sm);
  color: var(--c-text-secondary);
  font-weight: var(--weight-medium);
}

.footer__links a:hover {
  color: var(--c-text);
}

.footer__copy {
  font-size: var(--text-xs);
  color: var(--c-text-tertiary);
}

/* --- Services Page --- */
.service-block {
  padding: var(--space-10) 0;
  border-bottom: 1px solid var(--c-border-subtle);
}

.service-block:last-of-type {
  border-bottom: none;
}

.service-block__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .service-block__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

.service-block__header h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

.service-block__header p {
  font-size: var(--text-base);
}

.service-block__details h4 {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-text-tertiary);
  margin-bottom: var(--space-3);
}

.service-block__details ul {
  list-style: none;
  margin-bottom: var(--space-6);
}

.service-block__details li {
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--c-text-secondary);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.service-block__details li::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  flex-shrink: 0;
  margin-top: 7px;
}

.service-block .engagement-format {
  font-size: var(--text-sm);
  color: var(--c-accent);
  font-weight: var(--weight-medium);
  padding: var(--space-3) var(--space-5);
  background: var(--c-accent-subtle);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 212, 170, 0.1);
  display: inline-block;
}

/* --- Engagement Models --- */
.models__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .models__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.model-card {
  padding: var(--space-8);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  text-align: center;
}

.model-card h3 {
  margin-bottom: var(--space-3);
}

.model-card p {
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.model-card__tag {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--c-accent);
  background: var(--c-accent-subtle);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  display: inline-block;
}

/* --- FAQ --- */
.faq__list {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

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

.faq-item__trigger {
  width: 100%;
  appearance: none;
  border: none;
  background: none;
  padding: var(--space-6) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  color: var(--c-text);
  transition: color var(--duration-fast);
}

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

.faq-item__trigger svg {
  width: 20px;
  height: 20px;
  color: var(--c-text-tertiary);
  flex-shrink: 0;
  transition: transform var(--duration-normal) var(--ease-out);
}

.faq-item[open] .faq-item__trigger svg {
  transform: rotate(45deg);
}

.faq-item__content {
  padding: 0 0 var(--space-6);
}

.faq-item__content p {
  font-size: var(--text-sm);
  max-width: 640px;
}

/* --- Contact Form --- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}

@media (min-width: 768px) {
  .contact__grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact__info h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

.contact__email-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--c-accent);
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-6);
  background: var(--c-accent-subtle);
  border: 1px solid rgba(0, 212, 170, 0.12);
  border-radius: var(--radius-md);
  transition: background var(--duration-fast), border-color var(--duration-fast);
  word-break: break-all;
}

.contact__email-link:hover {
  background: rgba(0, 212, 170, 0.12);
  border-color: var(--c-accent);
  color: var(--c-accent-hover);
}

.contact__next h3 {
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
  margin-top: var(--space-8);
}

.contact__next-steps {
  list-style: none;
  counter-reset: next-step;
}

.contact__next-steps li {
  counter-increment: next-step;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  font-size: var(--text-sm);
  color: var(--c-text-secondary);
}

.contact__next-steps li::before {
  content: counter(next-step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--c-accent-subtle);
  border: 1px solid rgba(0, 212, 170, 0.12);
  color: var(--c-accent);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  flex-shrink: 0;
}

/* Form */
.form {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.form h3 {
  margin-bottom: var(--space-6);
}

.form__group {
  margin-bottom: var(--space-5);
}

.form__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--c-text);
  margin-bottom: var(--space-2);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--c-text);
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px var(--c-accent-subtle);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--c-text-tertiary);
}

.form__textarea {
  min-height: 120px;
  resize: vertical;
}

.form__error {
  font-size: var(--text-xs);
  color: #f87171;
  margin-top: var(--space-1);
  display: none;
}

.form__group.has-error .form__input,
.form__group.has-error .form__textarea {
  border-color: #f87171;
}

.form__group.has-error .form__error {
  display: block;
}

.form__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.form__success {
  display: none;
  padding: var(--space-4);
  background: var(--c-accent-subtle);
  border: 1px solid rgba(0, 212, 170, 0.15);
  border-radius: var(--radius-md);
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--c-accent);
}

.form__success.is-visible {
  display: block;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Staggered reveals */
.reveal-stagger > .reveal {
  transition-delay: calc(var(--reveal-index, 0) * 80ms);
}

/* --- Gradient line accent --- */
.gradient-line {
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-violet), var(--c-accent));
  background-size: 200% 100%;
  animation: gradient-shift 6s ease-in-out infinite;
  border: none;
}

@keyframes gradient-shift {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gradient-line {
    animation: none;
    background-size: 100% 100%;
  }
}

/* --- Hero page variants --- */
.hero--centered {
  text-align: center;
}

.hero--centered .hero__subtitle {
  margin-left: auto;
  margin-right: auto;
}

.hero--centered .hero__ctas {
  justify-content: center;
}

/* --- Print --- */
@media print {
  .nav,
  .nav-spacer,
  #hero-canvas,
  .hero__overlay,
  .cta-band__glow {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  body::before {
    display: none;
  }

  section {
    padding: 2rem 0;
  }

  .card,
  .form,
  .case,
  .process__step,
  .model-card {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  a {
    color: inherit;
    text-decoration: underline;
  }

  .btn {
    border: 1px solid #333;
  }
}