/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-accent: #7c3aed;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-dark: #0f172a;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  --color-border: #e2e8f0;
  --color-success: #10b981;

  --font-family: "Inter", system-ui, -apple-system, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.25rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
  --shadow-xl: 0 20px 60px rgba(37, 99, 235, 0.15);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 72px;
  --container-max: 1200px;
  --section-padding: 100px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

button {
  cursor: pointer;
}

/* ============================================
   Utilities
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

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

.section__label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 16px;
}

.section__desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-width: 560px;
}

.section__header {
  text-align: center;
  margin-bottom: 60px;
}

.section__header .section__desc {
  margin: 0 auto;
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal--delay {
  transition-delay: 0.15s;
}

.reveal--delay-2 {
  transition-delay: 0.3s;
}

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

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--sm {
  padding: 10px 20px;
  font-size: var(--font-size-sm);
}

.btn--lg {
  padding: 16px 32px;
  font-size: var(--font-size-base);
}

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

.btn--primary {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-accent)
  );
  color: #fff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
  padding: 15px;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
}

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

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.04);
}

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: var(--font-size-xl);
  color: var(--color-text);
  flex-shrink: 0;
}

.logo__icon {
  color: var(--color-primary);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 32px;
}

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

.nav__link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}

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

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

.burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 28px;
  padding: 4px 0;
}

.burger span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

.burger.is-open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.burger.is-open span:nth-child(2) {
  opacity: 0;
}

.burger.is-open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 40px) 0 80px;
  overflow: hidden;
}

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

.hero__gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      ellipse 80% 60% at 70% 20%,
      rgba(37, 99, 235, 0.08) 0%,
      transparent 60%
    ),
    radial-gradient(
      ellipse 60% 50% at 20% 80%,
      rgba(124, 58, 237, 0.06) 0%,
      transparent 60%
    ),
    linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(
    ellipse 70% 70% at 50% 50%,
    black 20%,
    transparent 80%
  );
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero__badge {
  display: inline-block;
  padding: 8px 16px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.hero__title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  background: linear-gradient(
    135deg,
    var(--color-text) 0%,
    var(--color-primary) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-muted);
  margin-bottom: 36px;
  max-width: 520px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero__benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.hero__benefit {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.hero__benefit svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

/* Hero visual card */
.hero__visual {
  display: flex;
  justify-content: center;
}

.hero__card {
  width: 100%;
  max-width: 420px;
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  overflow: hidden;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

.hero__card-header {
  display: flex;
  gap: 8px;
  padding: 16px 20px;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.hero__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-border);
}

.hero__dot:first-child {
  background: #ef4444;
}
.hero__dot:nth-child(2) {
  background: #f59e0b;
}
.hero__dot:nth-child(3) {
  background: #10b981;
}

.hero__card-body {
  padding: 28px;
}

.hero__stat {
  margin-bottom: 24px;
}

.hero__stat-value {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

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

.hero__chart {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 100px;
  margin-bottom: 24px;
}

.hero__bar {
  flex: 1;
  height: var(--h);
  background: linear-gradient(
    180deg,
    var(--color-primary-light),
    var(--color-primary)
  );
  border-radius: 6px 6px 0 0;
  animation: growBar 1.5s ease-out forwards;
  transform-origin: bottom;
  transform: scaleY(0);
}

.hero__bar:nth-child(1) {
  animation-delay: 0.1s;
}
.hero__bar:nth-child(2) {
  animation-delay: 0.2s;
}
.hero__bar:nth-child(3) {
  animation-delay: 0.3s;
}
.hero__bar:nth-child(4) {
  animation-delay: 0.4s;
}
.hero__bar:nth-child(5) {
  animation-delay: 0.5s;
}
.hero__bar:nth-child(6) {
  animation-delay: 0.6s;
}

@keyframes growBar {
  to {
    transform: scaleY(1);
  }
}

.hero__tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  padding: 6px 12px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
}

/* ============================================
   About
   ============================================ */
.about {
  background: var(--color-bg-alt);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
}

.about__avatar {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 1;
}

.about__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.about__stats {
  display: flex;
  gap: 24px;
  margin-top: 24px;
}

.about__stat {
  flex: 1;
  padding: 20px;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  text-align: center;
}

.about__stat strong {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
}

.about__stat span {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.about__text {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  margin-bottom: 28px;
  line-height: 1.8;
}

.about__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.about__tech li {
  padding: 8px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
}

/* ============================================
   Services
   ============================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  padding: 32px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.service-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  transition: all var(--transition);
}

.service-card:hover .service-card__icon {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-accent)
  );
  color: #fff;
}

.service-card__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: 10px;
}

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

/* ============================================
   Why
   ============================================ */
.why {
  background: var(--color-bg-dark);
  color: #fff;
}

.why .section__label {
  color: var(--color-primary-light);
}

.why .section__title {
  color: #fff;
}

.why .section__desc {
  color: var(--color-text-light);
}

.why__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.why__list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.why__item {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.why__item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(37, 99, 235, 0.3);
}

.why__num {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-primary-light);
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 99, 235, 0.15);
  border-radius: var(--radius-sm);
}

.why__item strong {
  display: block;
  font-size: var(--font-size-base);
  margin-bottom: 4px;
}

.why__item p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ============================================
   Process
   ============================================ */
.process {
  background: var(--color-bg-alt);
}

.process__timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: step;
}

.process__step {
  position: relative;
  padding: 28px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.process__step:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, 0.2);
}

.process__marker {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-accent)
  );
  color: #fff;
  font-weight: 700;
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.process__body h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: 8px;
}

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

/* ============================================
   Portfolio
   ============================================ */
.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.portfolio-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
}

.portfolio-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}

.portfolio-card__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.portfolio-card__body {
  padding: 24px;
}

.portfolio-card__type {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.portfolio-card__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: 8px;
}

.portfolio-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.portfolio-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
  transition: 0.3s;
}

.portfolio-card__link:hover {
  opacity: 0.8;
}

@media (max-width: 992px) {
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* ============================================
   Reviews
   ============================================ */
.reviews {
  background: var(--color-bg-alt);
}

.reviews__rating {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.reviews__stars {
  display: flex;
  gap: 2px;
  color: #f59e0b;
}

.reviews__score {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
}

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

.reviews__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  padding: 32px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.review-card:hover {
  box-shadow: var(--shadow-md);
}

.review-card__stars {
  color: #f59e0b;
  font-size: var(--font-size-lg);
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.review-card__text {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
}

.review-card__author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.review-card__avatar {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-accent)
  );
  color: #fff;
  font-size: var(--font-size-sm);
  font-weight: 700;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.review-card__author cite {
  display: block;
  font-style: normal;
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.review-card__author span {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ============================================
   FAQ
   ============================================ */
.faq__list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq__item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

.faq__item[open] {
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: var(--shadow-sm);
}

.faq__question {
  padding: 20px 24px;
  font-weight: 600;
  font-size: var(--font-size-base);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color var(--transition);
}

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

.faq__question::after {
  content: "+";
  font-size: var(--font-size-xl);
  font-weight: 400;
  color: var(--color-primary);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq__item[open] .faq__question::after {
  transform: rotate(45deg);
}

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

.faq__answer {
  padding: 0 24px 20px;
}

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

/* ============================================
   Contact
   ============================================ */
.contact {
  background: var(--color-bg-alt);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: start;
}

.contact__desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact__details li {
  display: flex;
  align-items: center;
  gap: 12px;
}

.contact__details svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact__details a {
  font-weight: 500;
  transition: color var(--transition);
}

.contact__details a:hover {
  color: var(--color-primary);
}

.contact__form {
  padding: 36px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: all var(--transition);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  background: var(--color-bg);
}

.form-group input.is-error,
.form-group textarea.is-error {
  border-color: #ef4444;
}

.form-error {
  display: block;
  font-size: var(--font-size-xs);
  color: #ef4444;
  margin-top: 6px;
  min-height: 18px;
}

.form-success {
  margin-top: 16px;
  padding: 14px 16px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-align: center;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--color-bg-dark);
  color: #fff;
  padding-top: 60px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer .logo {
  color: #fff;
  margin-bottom: 12px;
}

.footer__tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__nav a,
.footer__contacts a {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  transition: color var(--transition);
}

.footer__nav a:hover,
.footer__contacts a:hover {
  color: #fff;
}

.footer__contacts {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
}

.footer__bottom p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  text-align: center;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  :root {
    --section-padding: 80px;
    --font-size-5xl: 2.75rem;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

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

  .hero__actions {
    justify-content: center;
  }

  .hero__benefits {
    justify-content: center;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about__image {
    max-width: 400px;
    margin: 0 auto;
  }

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

  .why__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

  .reviews__grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

@media (max-width: 768px) {
  :root {
    --section-padding: 64px;
    --font-size-5xl: 2.25rem;
    --font-size-3xl: 1.75rem;
    --header-height: 64px;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 20px 24px;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    box-shadow: var(--shadow-lg);
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__list {
    flex-direction: column;
    gap: 0;
    align-items: stretch;
  }

  .nav__link {
    display: block;
    padding: 14px 0;
    font-size: var(--font-size-base);
    border-bottom: 1px solid var(--color-border);
  }

  .nav__link::after {
    display: none;
  }

  .burger {
    display: flex;
  }

  .header__cta {
    display: none;
  }

  .hero__title {
    font-size: var(--font-size-4xl);
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__benefits {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

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

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

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

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

  .footer__nav,
  .footer__contacts {
    align-items: center;
  }

  .contact__form {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero__card {
    max-width: 100%;
  }

  .about__stats {
    flex-direction: column;
  }
}

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

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

  .hero__card {
    animation: none;
  }

  .hero__bar {
    animation: none;
    transform: scaleY(1);
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}