/* ============================================
   svns.io — Design System & Styles
   Dark minimal tech aesthetic
   ============================================ */

/* --- Tokens --- */
:root {
  --color-bg: #09090b;
  --color-bg-raised: #111114;
  --color-bg-card: #16161a;
  --color-bg-card-hover: #1c1c21;
  --color-surface: #1e1e23;
  --color-border: #27272a;
  --color-border-subtle: #1e1e23;

  --color-text: #e4e4e7;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;

  --color-accent: #c8ff00;
  --color-accent-dim: #c8ff0022;
  --color-accent-glow: #c8ff0015;

  --font-display: 'Syne', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'Fira Code', monospace;

  --size-xs: 0.75rem;
  --size-sm: 0.875rem;
  --size-base: 1rem;
  --size-lg: 1.125rem;
  --size-xl: 1.25rem;
  --size-2xl: 1.5rem;
  --size-3xl: 2rem;
  --size-4xl: 2.75rem;
  --size-5xl: 3.5rem;
  --size-6xl: 4.5rem;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --container: 1120px;
  --gutter: 1.5rem;

  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--size-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Noise overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  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: 200px;
}

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

ul, ol {
  list-style: none;
}

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

button, input, textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
  outline: none;
}

button {
  cursor: pointer;
}

::selection {
  background: var(--color-accent);
  color: var(--color-bg);
}

/* --- Container --- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* --- Section --- */
.section {
  padding: 6rem 0;
  position: relative;
}

.section__header {
  margin-bottom: 3.5rem;
}

.section__label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--size-4xl);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: var(--size-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease-out);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

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

.btn--primary:hover {
  background: #d4ff33;
  box-shadow: 0 0 30px var(--color-accent-dim), 0 4px 16px rgba(0, 0, 0, 0.4);
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(0);
}

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

.btn--ghost:hover {
  border-color: var(--color-text-muted);
  background: var(--color-bg-raised);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  width: 100%;
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-glow);
}

.btn--full {
  width: 100%;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.header.scrolled {
  border-bottom-color: var(--color-border-subtle);
  background: rgba(9, 9, 11, 0.92);
}

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

/* --- Logo --- */
.logo__text {
  font-family: var(--font-display);
  font-size: var(--size-xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.logo__dot {
  color: var(--color-accent);
}

.logo--small .logo__text {
  font-size: var(--size-lg);
}

/* --- Nav --- */
.nav__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  font-size: var(--size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.25s ease;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.3s var(--ease-out);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-text);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

/* --- Header Actions --- */
.header__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* --- Language Toggle --- */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--color-text-muted);
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.25s ease;
}

.lang-toggle:hover {
  border-color: var(--color-text-muted);
}

.lang-toggle__option {
  transition: color 0.25s ease;
  cursor: pointer;
}

.lang-toggle__option.active {
  color: var(--color-accent);
}

.lang-toggle__separator {
  opacity: 0.3;
}

/* --- Burger --- */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  position: relative;
  z-index: 1001;
}

.burger__line {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.35s var(--ease-out), opacity 0.25s ease;
  transform-origin: center;
}

.burger.open .burger__line:first-child {
  transform: translateY(3.75px) rotate(45deg);
}

.burger.open .burger__line:last-child {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* --- Mobile Menu --- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(9, 9, 11, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease-out), visibility 0.4s;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-size: var(--size-3xl);
  font-weight: 700;
  color: var(--color-text-secondary);
  transition: color 0.25s ease;
}

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

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

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(200, 255, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 255, 0, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero__glow {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, var(--color-accent-dim) 0%, transparent 70%);
  filter: blur(80px);
  opacity: 0.5;
  animation: glowPulse 6s ease-in-out infinite alternate;
}

@keyframes glowPulse {
  0% { opacity: 0.35; transform: translateX(-50%) scale(1); }
  100% { opacity: 0.55; transform: translateX(-50%) scale(1.1); }
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem 0.4rem 0.75rem;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: var(--size-xs);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

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

@keyframes dotPulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--color-accent-dim); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px transparent; }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(var(--size-4xl), 7vw, var(--size-6xl));
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

.hero__title-accent {
  color: var(--color-accent);
  position: relative;
}

.hero__subtitle {
  font-size: clamp(var(--size-base), 2vw, var(--size-lg));
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 580px;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 4rem;
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  gap: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-border-subtle);
}

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: var(--size-2xl);
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.hero__stat-unit {
  font-size: var(--size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.hero__stat-label {
  font-size: var(--size-xs);
  color: var(--color-text-muted);
}

/* --- Services --- */
.services {
  border-top: 1px solid var(--color-border-subtle);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  transition: border-color 0.35s var(--ease-out), background 0.35s var(--ease-out), transform 0.35s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-dim), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

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

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

.service-card__number {
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--color-text-muted);
  margin-bottom: 1.75rem;
}

.service-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-glow);
  border: 1px solid var(--color-accent-dim);
  border-radius: var(--radius-md);
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: var(--size-xl);
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.service-card__text {
  font-size: var(--size-sm);
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
}

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.service-card__tags li {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.3rem 0.6rem;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-subtle);
}

/* --- About --- */
.about {
  border-top: 1px solid var(--color-border-subtle);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about__content .section__title {
  margin-bottom: 1.5rem;
}

.about__text {
  font-size: var(--size-base);
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.about__features {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-top: 0.5rem;
}

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

.about__feature-marker {
  width: 3px;
  min-height: 100%;
  border-radius: 3px;
  background: var(--color-accent);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.about__feature-title {
  font-family: var(--font-display);
  font-size: var(--size-base);
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}

.about__feature-text {
  font-size: var(--size-sm);
  line-height: 1.7;
  color: var(--color-text-muted);
}

/* --- Pricing --- */
.pricing {
  border-top: 1px solid var(--color-border-subtle);
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.pricing-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  transition: border-color 0.35s var(--ease-out), transform 0.35s var(--ease-out);
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-2px);
}

.pricing-card--featured {
  border-color: var(--color-accent);
  background: linear-gradient(to bottom, rgba(200, 255, 0, 0.04), var(--color-bg-card));
  box-shadow: 0 0 40px var(--color-accent-glow), 0 8px 32px rgba(0, 0, 0, 0.3);
}

.pricing-card__badge {
  position: absolute;
  top: -1px;
  right: 2rem;
  background: var(--color-accent);
  color: var(--color-bg);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.35rem 0.75rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.pricing-card__name {
  font-family: var(--font-display);
  font-size: var(--size-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.35rem;
}

.pricing-card__desc {
  font-size: var(--size-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.pricing-card__amount {
  font-family: var(--font-display);
  font-size: var(--size-3xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.pricing-card__period {
  font-size: var(--size-sm);
  color: var(--color-text-muted);
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.pricing-card__features li {
  font-size: var(--size-sm);
  color: var(--color-text-secondary);
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.5;
}

.pricing-card__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.7;
}

/* --- FAQ --- */
.faq {
  border-top: 1px solid var(--color-border-subtle);
}

.faq__list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq__item {
  border-bottom: 1px solid var(--color-border-subtle);
}

.faq__item:first-child {
  border-top: 1px solid var(--color-border-subtle);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: var(--size-base);
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.25s ease;
  list-style: none;
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::marker {
  display: none;
  content: '';
}

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

.faq__icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}

.faq__icon::before,
.faq__icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.35s var(--ease-out), opacity 0.35s ease;
}

.faq__icon::before {
  width: 12px;
  height: 1.5px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq__icon::after {
  width: 1.5px;
  height: 12px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq__item[open] .faq__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq__answer {
  overflow: hidden;
  padding-bottom: 1.5rem;
}

.faq__answer p {
  font-size: var(--size-sm);
  line-height: 1.8;
  color: var(--color-text-secondary);
}

/* --- Contact --- */
.contact {
  border-top: 1px solid var(--color-border-subtle);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact__info .section__title {
  margin-bottom: 1rem;
}

.contact__text {
  font-size: var(--size-base);
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
}

.contact__channels {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.contact__channel {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--size-sm);
  color: var(--color-text-muted);
  transition: color 0.25s ease;
}

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

.contact__channel-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

/* --- Form --- */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form__label {
  font-size: var(--size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.form__input {
  padding: 0.875rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--size-sm);
  color: var(--color-text);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.form__input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.6;
}

.form__input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}

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

.form__status {
  font-size: var(--size-sm);
  min-height: 1.5em;
  transition: opacity 0.3s ease;
}

.form__status--success {
  color: var(--color-accent);
}

.form__status--error {
  color: #f87171;
}

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

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

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

.footer__links {
  display: flex;
  gap: 2rem;
}

.footer__link {
  font-size: var(--size-sm);
  color: var(--color-text-muted);
  transition: color 0.25s ease;
}

.footer__link:hover {
  color: var(--color-text);
}

.footer__tagline {
  display: flex;
  align-items: center;
}

.footer__code {
  font-family: var(--font-mono);
  font-size: var(--size-xs);
  color: var(--color-text-muted);
  opacity: 0.5;
}

/* --- Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

/* Stagger children */
.reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal:nth-child(4) { transition-delay: 0.24s; }
.reveal:nth-child(5) { transition-delay: 0.32s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: 1fr 1fr;
  }

  .services__grid .service-card:last-child {
    grid-column: 1 / -1;
    max-width: 50%;
  }

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

  .pricing__grid .pricing-card:last-child {
    grid-column: 1 / -1;
    max-width: 50%;
  }
}

@media (max-width: 768px) {
  :root {
    --gutter: 1.25rem;
    --header-h: 64px;
  }

  .section {
    padding: 4rem 0;
  }

  .section__title {
    font-size: var(--size-3xl);
  }

  .nav {
    display: none;
  }

  .burger {
    display: flex;
  }

  .hero__title {
    font-size: clamp(var(--size-3xl), 9vw, var(--size-5xl));
  }

  .hero__stats {
    gap: 2rem;
    flex-wrap: wrap;
  }

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

  .services__grid .service-card:last-child {
    max-width: 100%;
  }

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

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

  .pricing__grid .pricing-card:last-child {
    max-width: 100%;
  }

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

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .footer__links {
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .section__title {
    font-size: var(--size-2xl);
  }

  .hero__title {
    font-size: clamp(var(--size-2xl), 10vw, var(--size-4xl));
  }

  .hero__subtitle {
    font-size: var(--size-sm);
  }

  .service-card {
    padding: 1.75rem;
  }

  .pricing-card {
    padding: 1.75rem;
  }

  .pricing-card__amount {
    font-size: var(--size-2xl);
  }

  .hero__stats {
    gap: 1.5rem;
  }
}

/* --- Chat Widget --- */
.chat-widget {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9998;
  font-family: var(--font-body);
}

.chat-widget__toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-accent);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-bg);
  box-shadow: 0 4px 24px rgba(200, 255, 0, 0.2), 0 2px 8px rgba(0, 0, 0, 0.4);
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s ease;
  position: relative;
  z-index: 2;
}

.chat-widget__toggle:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 32px rgba(200, 255, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.5);
}

.chat-widget__icon--close {
  display: none;
}

.chat-widget.open .chat-widget__icon--chat {
  display: none;
}

.chat-widget.open .chat-widget__icon--close {
  display: block;
}

.chat-widget__window {
  position: absolute;
  bottom: 72px;
  right: 0;
  width: 380px;
  height: 520px;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.96);
  transform-origin: bottom right;
  transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out), visibility 0.3s;
  box-shadow: 0 16px 64px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
}

.chat-widget.open .chat-widget__window {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.chat-widget__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
}

.chat-widget__header-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.chat-widget__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-bg);
  font-family: var(--font-display);
  font-size: var(--size-xs);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.chat-widget__name {
  font-size: var(--size-sm);
  font-weight: 600;
  color: var(--color-text);
}

.chat-widget__status {
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

.chat-widget__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}

.chat-widget__close:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.chat-widget__messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.chat-widget__messages::-webkit-scrollbar {
  width: 4px;
}

.chat-widget__messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-widget__messages::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

.chat-msg {
  max-width: 85%;
  padding: 0.7rem 1rem;
  font-size: var(--size-sm);
  line-height: 1.6;
  border-radius: 12px;
  animation: chatMsgIn 0.3s var(--ease-out);
}

@keyframes chatMsgIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-msg--user {
  align-self: flex-end;
  background: var(--color-accent);
  color: var(--color-bg);
  border-bottom-right-radius: 3px;
  font-weight: 500;
}

.chat-msg--assistant {
  align-self: flex-start;
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-subtle);
  border-bottom-left-radius: 3px;
}

.chat-msg--error {
  align-self: flex-start;
  background: rgba(248, 113, 113, 0.1);
  color: #f87171;
  font-size: var(--size-xs);
  border-radius: 12px;
}

.chat-typing {
  display: flex;
  gap: 5px;
  padding: 0.7rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-subtle);
  border-radius: 12px;
  border-bottom-left-radius: 3px;
  width: fit-content;
  align-self: flex-start;
  animation: chatMsgIn 0.3s var(--ease-out);
}

.chat-typing__dot {
  width: 6px;
  height: 6px;
  background: var(--color-text-muted);
  border-radius: 50%;
  animation: chatTyping 1.4s ease-in-out infinite;
}

.chat-typing__dot:nth-child(2) { animation-delay: 0.15s; }
.chat-typing__dot:nth-child(3) { animation-delay: 0.3s; }

@keyframes chatTyping {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-6px); opacity: 1; }
}

.chat-widget__input-area {
  display: flex;
  gap: 0.5rem;
  padding: 0.875rem 1.25rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-card);
}

.chat-widget__input {
  flex: 1;
  padding: 0.625rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: var(--size-sm);
  color: var(--color-text);
  transition: border-color 0.2s ease;
}

.chat-widget__input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.5;
}

.chat-widget__input:focus {
  border-color: var(--color-accent);
}

.chat-widget__send {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.chat-widget__send:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none;
}

.chat-widget__send:not(:disabled):hover {
  transform: scale(1.05);
}

@media (max-width: 480px) {
  .chat-widget {
    bottom: 1rem;
    right: 1rem;
  }

  .chat-widget__window {
    width: calc(100vw - 2rem);
    height: calc(100dvh - 8rem);
    right: -0.5rem;
    bottom: 68px;
  }

  .chat-widget__toggle {
    width: 50px;
    height: 50px;
  }
}

/* --- Print --- */
@media print {
  .header, .burger, .mobile-menu, .hero__bg {
    display: none !important;
  }

  .hero {
    min-height: auto;
    padding-top: 2rem;
  }

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

  body::before {
    display: none;
  }
}