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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--vg-text);
  background: var(--vg-bg);
}

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

a {
  color: var(--vg-primary);
  text-decoration: none;
}

a:hover {
  color: var(--vg-primary-dark);
}

.container {
  width: min(var(--page-width), 100% - var(--gutter) * 2);
  margin-inline: auto;
}

.section {
  padding-block: 80px;
}

.section--tight {
  padding-block: 48px;
}

.section__label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--vg-primary);
  margin-bottom: 12px;
}

.section__title {
  margin: 0 0 16px;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.15;
}

.section__lead {
  margin: 0;
  max-width: 640px;
  color: var(--vg-muted);
  font-size: 18px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--vg-border);
}

.header__inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
}

.logo img {
  height: 44px;
  width: auto;
}

.grid--featured {
  margin-top: 32px;
}

.card--highlight {
  border-color: var(--vg-primary);
  background: linear-gradient(180deg, #fff 0%, var(--vg-primary-light) 100%);
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  color: var(--vg-text);
  font-weight: 600;
  font-size: 15px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: var(--vg-radius-pill);
  border: none;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--vg-primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(122, 51, 68, 0.25);
}

.btn--primary:hover {
  background: var(--vg-primary-dark);
  color: #fff;
}

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

.btn--ghost:hover {
  border-color: var(--vg-primary);
  color: var(--vg-primary);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--vg-border);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--vg-text);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: 96px 80px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(122, 51, 68, 0.92), rgba(28, 28, 30, 0.82)),
    url("../images/background/hero.jpg") center / cover no-repeat;
  z-index: 0;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  color: #fff;
}

.hero__badge {
  display: inline-block;
  padding: 8px 14px;
  border-radius: var(--vg-radius-pill);
  background: rgba(255, 255, 255, 0.12);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.08;
  font-weight: 800;
}

.hero__text {
  margin: 0 0 28px;
  font-size: 18px;
  color: rgba(255, 255, 255, 0.88);
  max-width: 560px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.hero__note {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
}

.hero__card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 24px;
  padding: 28px;
  backdrop-filter: blur(8px);
}

.hero__card h3 {
  margin: 0 0 12px;
  font-size: 20px;
}

.hero__card ul {
  margin: 0;
  padding-left: 18px;
  color: rgba(255, 255, 255, 0.9);
}

.hero__partner {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
}

.hero__partner a {
  color: #fff;
  text-decoration: underline;
}

/* Grid cards */
.grid {
  display: grid;
  gap: 24px;
}

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: var(--vg-surface);
  border: 1px solid var(--vg-border);
  border-radius: var(--vg-radius);
  padding: 28px;
  box-shadow: var(--vg-shadow);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.card p {
  margin: 0;
  color: var(--vg-muted);
}

.card__price {
  margin-top: 16px;
  font-size: 28px;
  font-weight: 800;
  color: var(--vg-primary);
}

.card__price small {
  font-size: 14px;
  font-weight: 600;
  color: var(--vg-muted);
}

.card ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--vg-muted);
}

.card ul li + li {
  margin-top: 6px;
}

/* Split */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.split__box {
  background: var(--vg-primary-light);
  border-radius: 24px;
  padding: 32px;
}

.split__box h3 {
  margin: 0 0 12px;
  color: var(--vg-primary-dark);
}

.split__box p,
.split__box li {
  color: #4a4a4f;
}

.split__box ul {
  margin: 12px 0 0;
  padding-left: 18px;
}

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

.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--vg-border);
}

.step:last-child {
  border-bottom: none;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--vg-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 22px;
}

.step h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.step p {
  margin: 0;
  color: var(--vg-muted);
}

/* Portfolio */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.portfolio-item {
  border-radius: var(--vg-radius);
  overflow: hidden;
  border: 1px solid var(--vg-border);
  background: #fff;
}

.portfolio-item figcaption {
  padding: 14px 16px;
  font-size: 14px;
  font-weight: 600;
}

/* Certificates */
.cert-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.cert-row img {
  height: 140px;
  width: auto;
  border-radius: 12px;
  border: 1px solid var(--vg-border);
  background: #fff;
}

/* FAQ */
.faq {
  width: 100%;
  max-width: none;
}

.faq details {
  background: #fff;
  border: 1px solid var(--vg-border);
  border-radius: 12px;
  padding: 16px 20px;
}

.faq details + details {
  margin-top: 12px;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq p {
  margin: 12px 0 0;
  color: var(--vg-muted);
}

/* Contact */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact__info p {
  margin: 0 0 12px;
  color: var(--vg-muted);
}

.contact__info strong {
  color: var(--vg-text);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--vg-border);
  border-radius: 12px;
  font: inherit;
  background: #fff;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--vg-muted);
}

.form-success {
  display: none;
  padding: 16px;
  border-radius: 12px;
  background: #e8f7ee;
  color: #1f6b3a;
  margin-bottom: 16px;
}

/* Footer */
.footer {
  background: #1c1c1e;
  color: rgba(255, 255, 255, 0.78);
  padding: 48px 0 24px;
}

.footer a {
  color: #fff;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer__title {
  color: #fff;
  font-weight: 800;
  margin-bottom: 12px;
}

.footer__bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
}

/* Responsive */
@media (max-width: 960px) {
  .hero__inner,
  .split,
  .contact,
  .grid--3,
  .portfolio-grid,
  .footer__grid {
    grid-template-columns: 1fr;
  }

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

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    border-bottom: 1px solid var(--vg-border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: 0.2s ease;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .menu-toggle {
    display: block;
  }

  .header__cta-desktop {
    display: none;
  }
}

@media (min-width: 961px) {
  .header__cta-mobile {
    display: none;
  }
}