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

:root {
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-border: #e5e7eb;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-primary: #4169ff;
  --color-primary-hover: #3451cc;
  --color-accent: #7b8fff;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  padding: 20px 0;
}

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

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 40px;
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.3s;
}

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

/* Hero Section */
.hero {
  padding: 140px 0 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  /* Adding gradient background for visual interest */
  background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf4 100%);
  position: relative;
  overflow: hidden;
}

/* Adding decorative background elements */
.hero::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(65, 105, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  top: -250px;
  right: -100px;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(123, 143, 255, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  bottom: -150px;
  left: -100px;
  pointer-events: none;
}

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

.hero-label {
  color: var(--color-accent);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
  font-weight: 600;
}

.hero-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-description {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
}

/* 3D Canvas */
.hero-3d {
  position: relative;
  width: 100%;
  height: 600px;
  /* Adding card style to 3D container */
  background: var(--color-surface);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--color-border);
}

#canvas3d {
  width: 100%;
  height: 100%;
  border-radius: 16px;
  background: transparent;
}

.model-hint {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-secondary);
  font-size: 14px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
}

/* Buttons */
.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background-color: var(--color-primary);
  color: #ffffff;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
}

.btn-large {
  padding: 18px 48px;
  font-size: 18px;
}

/* Features Section */
.features {
  padding: 100px 0;
  /* Changing background for visual variety */
  background-color: var(--color-surface);
}

.section-title {
  font-size: 42px;
  text-align: center;
  margin-bottom: 60px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.feature-card {
  padding: 40px;
  /* Adding gradient border effect */
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: 16px;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transition: transform 0.3s;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-8px);
  box-shadow: 0 12px 32px rgba(65, 105, 255, 0.15);
}

.feature-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 24px;
  color: var(--color-primary);
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  font-weight: 600;
}

.feature-card p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Specifications */
.specifications {
  padding: 100px 0;
  /* Adding subtle background pattern */
  background: linear-gradient(135deg, #fafbfc 0%, #f0f2f8 100%);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border: 2px solid transparent;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(65, 105, 255, 0.12);
}

.spec-item {
  padding: 36px;
  background-color: var(--color-surface);
  transition: all 0.3s;
}

.spec-item:hover {
  background-color: #f9fafb;
  transform: scale(1.02);
}

.spec-label {
  color: var(--color-text-secondary);
  font-size: 14px;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.spec-value {
  font-size: 18px;
  font-weight: 600;
}

/* Contact Page */
.contact-hero {
  padding: 140px 0 60px;
  text-align: center;
}

.page-title {
  font-size: 52px;
  margin-bottom: 20px;
  font-weight: 700;
  letter-spacing: -1px;
}

.page-description {
  font-size: 18px;
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

.contact-section {
  padding: 60px 0 100px;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
}

.contact-info h2 {
  font-size: 32px;
  margin-bottom: 40px;
  font-weight: 700;
}

.info-items {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.info-item {
  display: flex;
  gap: 20px;
}

.info-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  color: var(--color-primary);
}

.info-icon svg {
  width: 100%;
  height: 100%;
}

.info-text h3 {
  font-size: 18px;
  margin-bottom: 8px;
  font-weight: 600;
}

.info-text p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Contact Form */
.contact-form-wrapper {
  background-color: var(--color-surface);
  padding: 48px;
  border-radius: 16px;
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.contact-form h2 {
  font-size: 28px;
  margin-bottom: 12px;
  font-weight: 700;
}

.form-description {
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background-color: #f9fafb;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-size: 15px;
  transition: all 0.3s;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: var(--color-surface);
  box-shadow: 0 0 0 3px rgba(65, 105, 255, 0.1);
}

.form-group textarea {
  resize: vertical;
}

.contact-form button[type="submit"] {
  width: 100%;
  margin-top: 8px;
}

/* Footer */
.footer {
  background-color: #fafbfc;
  border-top: 1px solid var(--color-border);
  padding: 60px 0 30px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--color-text-secondary);
  margin-top: 12px;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.3s;
}

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

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bottom p {
  color: var(--color-text-secondary);
  font-size: 14px;
}

/* Responsive */
@media (max-width: 968px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-title {
    font-size: 42px;
  }

  .hero-3d {
    height: 400px;
  }

  .section-title {
    font-size: 36px;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-content {
    flex-direction: column;
    gap: 30px;
  }

  .nav-links {
    gap: 20px;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 120px 0 60px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-description {
    font-size: 16px;
  }

  .section-title {
    font-size: 28px;
  }

  .page-title {
    font-size: 36px;
  }

  .contact-form-wrapper {
    padding: 32px 24px;
  }

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

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

/* Adding loading state for 3D model */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  z-index: 10;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.apple-hero {
  min-height: 100vh;
  padding: 130px 6% 70px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 50% 20%, #ffffff 0%, #f3f6fb 45%, #e9eef7 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.apple-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(65, 105, 255, 0.16), transparent 30%),
    radial-gradient(circle at 80% 30%, rgba(145, 168, 255, 0.18), transparent 34%),
    linear-gradient(180deg, rgba(255,255,255,0.9), rgba(255,255,255,0));
  pointer-events: none;
}

.apple-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 980px;
  margin: 0 auto;
}

.apple-eyebrow {
  margin: 0 0 18px;
  color: #4169ff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
}

.apple-title {
  margin: 0;
  color: #111827;
  font-size: clamp(48px, 7vw, 104px);
  line-height: 0.95;
  letter-spacing: -5px;
  font-weight: 800;
}

.apple-subtitle {
  max-width: 760px;
  margin: 30px auto 0;
  color: #64748b;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.55;
}

.apple-actions {
  margin-top: 38px;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.apple-btn {
  min-height: 52px;
  padding: 0 28px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  text-decoration: none;
  transition: 0.25s ease;
}

.apple-btn-primary {
  background: #111827;
  color: #ffffff;
  box-shadow: 0 18px 40px rgba(17, 24, 39, 0.22);
}

.apple-btn-primary:hover {
  background: #000000;
  transform: translateY(-3px);
}

.apple-btn-secondary {
  background: rgba(255,255,255,0.75);
  color: #111827;
  border: 1px solid rgba(148, 163, 184, 0.35);
  backdrop-filter: blur(18px);
}

.apple-btn-secondary:hover {
  background: #ffffff;
  transform: translateY(-3px);
}

.apple-model-wrap {
  position: relative;
  z-index: 2;
  width: min(900px, 100%);
  height: 560px;
  margin-top: 40px;
}

.model-glow {
  position: absolute;
  left: 50%;
  bottom: 42px;
  width: 520px;
  height: 120px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(65, 105, 255, 0.28), transparent 70%);
  filter: blur(18px);
}

.apple-model {
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 2;
}

.apple-model-hint {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(148, 163, 184, 0.32);
  color: #64748b;
  font-size: 14px;
  backdrop-filter: blur(18px);
}

.buy-section {
  padding: 120px 6%;
  background: #ffffff;
}

.buy-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 430px;
  gap: 70px;
  align-items: center;
}

.buy-text h2 {
  margin: 0;
  color: #111827;
  font-size: clamp(42px, 5vw, 72px);
  line-height: 1;
  letter-spacing: -3px;
}

.buy-text p {
  margin-top: 24px;
  color: #64748b;
  font-size: 20px;
  line-height: 1.6;
  max-width: 640px;
}

.buy-card {
  padding: 30px;
  border-radius: 32px;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
  border: 1px solid #e5e7eb;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.12);
}

.buy-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.buy-card h3 {
  margin: 0;
  color: #111827;
  font-size: 26px;
  letter-spacing: -0.5px;
}

.product-badge {
  padding: 7px 12px;
  border-radius: 999px;
  background: #eef2ff;
  color: #4169ff;
  font-size: 13px;
  font-weight: 700;
}

.buy-price-row,
.total-price {
  margin-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.buy-price-row span,
.total-price span {
  color: #64748b;
}

.buy-price-row strong {
  color: #111827;
  font-size: 22px;
}

.addon-card {
  margin-top: 22px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid #dbe3ef;
  background: #ffffff;
  display: grid;
  grid-template-columns: 22px 1fr auto;
  gap: 14px;
  align-items: flex-start;
  cursor: pointer;
  transition: 0.25s ease;
}

.addon-card:hover {
  border-color: #4169ff;
  box-shadow: 0 18px 36px rgba(65, 105, 255, 0.12);
}

.addon-card input {
  margin-top: 4px;
  accent-color: #4169ff;
}

.addon-card strong {
  color: #111827;
  font-size: 15px;
}

.addon-card p {
  margin: 6px 0 0;
  color: #64748b;
  font-size: 14px;
  line-height: 1.45;
}

.addon-card b {
  color: #4169ff;
  white-space: nowrap;
}

.total-price {
  padding-top: 24px;
  border-top: 1px solid #e5e7eb;
}

.total-price strong {
  color: #111827;
  font-size: 34px;
  letter-spacing: -1px;
}

.buy-full {
  width: 100%;
  margin-top: 26px;
}

@media (max-width: 900px) {
  .apple-hero {
    padding-top: 115px;
  }

  .apple-title {
    letter-spacing: -2px;
  }

  .apple-model-wrap {
    height: 420px;
  }

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

@media (max-width: 560px) {
  .apple-actions {
    flex-direction: column;
  }

  .apple-btn {
    width: 100%;
  }

  .addon-card {
    grid-template-columns: 22px 1fr;
  }

  .addon-card b {
    grid-column: 2;
  }
}
.premium-features {
  padding: 130px 6%;
  background: #f5f7fb;
}

.premium-section-head {
  max-width: 860px;
  margin: 0 auto 70px;
  text-align: center;
}

.premium-section-head h2 {
  margin: 0;
  color: #111827;
  font-size: clamp(42px, 6vw, 82px);
  line-height: 0.98;
  letter-spacing: -4px;
}

.premium-section-head p:not(.apple-eyebrow) {
  max-width: 680px;
  margin: 24px auto 0;
  color: #64748b;
  font-size: 20px;
  line-height: 1.6;
}

.premium-feature-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
}

.premium-feature-card {
  min-height: 300px;
  padding: 34px;
  border-radius: 34px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
  transition: 0.25s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.premium-feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 34px 80px rgba(15, 23, 42, 0.12);
}

.premium-feature-card span {
  display: inline-flex;
  color: #4169ff;
  font-weight: 800;
  letter-spacing: 1px;
}

.premium-feature-card h3 {
  margin: 0 0 14px;
  color: #111827;
  font-size: 30px;
  letter-spacing: -1px;
}

.premium-feature-card p {
  margin: 0;
  color: #64748b;
  font-size: 17px;
  line-height: 1.55;
}

.big-card {
  min-height: 420px;
  background:
    radial-gradient(circle at 85% 18%, rgba(65, 105, 255, 0.16), transparent 40%),
    linear-gradient(145deg, #ffffff, #f8fbff);
}

.dark-card {
  background:
    radial-gradient(circle at 85% 18%, rgba(65, 105, 255, 0.14), transparent 40%),
    linear-gradient(145deg, #ffffff, #f8fbff);
}

.dark-card h3 {
  color: #111827;
}

.dark-card span {
  color: #4169ff;
}

.dark-card p {
  color: #64748b;
}

@media (max-width: 900px) {
  .premium-feature-grid {
    grid-template-columns: 1fr;
  }

  .premium-section-head h2 {
    letter-spacing: -2px;
  }

  .big-card,
  .premium-feature-card {
    min-height: 260px;
  }
}
/*Секція specifications*/
.premium-specs {
  padding: 130px 6%;
  background:
    radial-gradient(circle at 50% 0%, rgba(65, 105, 255, 0.12), transparent 38%),
    #ffffff;
}

.premium-specs-head {
  max-width: 920px;
  margin: 0 auto 70px;
  text-align: center;
}

.premium-specs-head h2 {
  margin: 0;
  color: #111827;
  font-size: clamp(42px, 6vw, 84px);
  line-height: 0.98;
  letter-spacing: -4px;
}

.premium-specs-head p:not(.apple-eyebrow) {
  max-width: 720px;
  margin: 24px auto 0;
  color: #64748b;
  font-size: 20px;
  line-height: 1.6;
}

.premium-specs-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid rgba(65, 105, 255, 0.55);
  border-radius: 34px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 30px 90px rgba(15, 23, 42, 0.1);
  backdrop-filter: blur(18px);
}

.premium-spec-item {
  min-height: 190px;
  padding: 34px;
  background: rgba(255, 255, 255, 0.86);
  border-right: 1px solid rgba(65, 105, 255, 0.42);
  border-bottom: 1px solid rgba(65, 105, 255, 0.42);
  transition: 0.25s ease;
}

.premium-spec-item:nth-child(3),
.premium-spec-item:nth-child(6) {
  border-right: none;
}

.premium-spec-item:nth-child(4),
.premium-spec-item:nth-child(5),
.premium-spec-item:nth-child(6) {
  border-bottom: none;
}

.premium-spec-item:hover {
  background: #f8fbff;
  transform: scale(1.015);
}

.premium-spec-item span {
  display: block;
  margin-bottom: 18px;
  color: #64748b;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.6px;
}

.premium-spec-item strong {
  display: block;
  color: #111827;
  font-size: 24px;
  line-height: 1.35;
  letter-spacing: -0.5px;
}

@media (max-width: 900px) {
  .premium-specs-grid {
    grid-template-columns: 1fr;
  }

  .premium-spec-item,
  .premium-spec-item:nth-child(3),
  .premium-spec-item:nth-child(6) {
    border-right: none;
  }

  .premium-spec-item:nth-child(4),
  .premium-spec-item:nth-child(5) {
    border-bottom: 1px solid rgba(65, 105, 255, 0.42);
  }

  .premium-specs-head h2 {
    letter-spacing: -2px;
  }
}
/*КУпити сторінка*/
.product-page-hero {
  min-height: auto;
   padding: 130px 6% 80px;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
  background:
    radial-gradient(circle at 75% 25%, rgba(65, 105, 255, 0.14), transparent 34%),
    linear-gradient(180deg, #ffffff, #f4f7fb);
}

.product-page-left h1 {
  margin: 0;
  color: #111827;
  font-size: clamp(48px, 7vw, 94px);
  line-height: 0.95;
  letter-spacing: -5px;
}

.product-page-left p:not(.apple-eyebrow) {
  margin-top: 28px;
  max-width: 620px;
  color: #64748b;
  font-size: 21px;
  line-height: 1.6;
}

.product-page-model {
  position: relative;
  height: 620px;
}

.product-main-model {
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 2;
}

.product-config-section {
  padding: 110px 6%;
  background: #f5f7fb;
}

.product-config-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 430px;
  gap: 34px;
  align-items: start;
}

.product-details-card {
  min-height: 520px;
  padding: 42px;
  border-radius: 34px;
  background:
    radial-gradient(circle at 85% 15%, rgba(65, 105, 255, 0.14), transparent 38%),
    #ffffff;
  border: 1px solid #e5e7eb;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.08);
}

.product-details-card h2 {
  margin: 0;
  color: #111827;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1;
  letter-spacing: -3px;
}

.product-details-card p {
  margin-top: 24px;
  max-width: 650px;
  color: #64748b;
  font-size: 20px;
  line-height: 1.6;
}

.product-small-specs {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.product-small-specs div {
  padding: 22px;
  border-radius: 22px;
  background: #f8fafc;
  border: 1px solid #e5e7eb;
}

.product-small-specs span {
  display: block;
  margin-bottom: 10px;
  color: #64748b;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.product-small-specs strong {
  color: #111827;
  font-size: 17px;
  line-height: 1.4;
}

.product-buy-card {
  position: sticky;
  top: 110px;
}

@media (max-width: 900px) {
  .product-page-hero,
  .product-config-grid {
    grid-template-columns: 1fr;
  }

  .product-page-left h1 {
    letter-spacing: -2px;
  }

  .product-page-model {
    height: 430px;
  }

  .product-buy-card {
    position: static;
  }
}

@media (max-width: 560px) {
  .product-small-specs {
    grid-template-columns: 1fr;
  }
}
/*контакти*/
.checkout-hero {
  padding: 150px 6% 70px;
  background:
    radial-gradient(circle at 50% 0%, rgba(65, 105, 255, 0.14), transparent 36%),
    linear-gradient(180deg, #ffffff, #f5f7fb);
  text-align: center;
}

.checkout-hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.checkout-hero h1 {
  margin: 0;
  color: #111827;
  font-size: clamp(48px, 7vw, 92px);
  line-height: 0.96;
  letter-spacing: -5px;
}

.checkout-hero p:not(.apple-eyebrow) {
  max-width: 720px;
  margin: 26px auto 0;
  color: #64748b;
  font-size: 21px;
  line-height: 1.6;
}

.checkout-section {
  padding: 70px 6% 120px;
  background: #f5f7fb;
}

.checkout-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 34px;
  align-items: start;
}

.checkout-info-card,
.checkout-form-card {
  border-radius: 34px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.08);
}

.checkout-info-card {
  position: sticky;
  top: 110px;
  padding: 32px;
}

.checkout-info-card h2,
.checkout-form-card h2 {
  margin: 0;
  color: #111827;
  font-size: 34px;
  line-height: 1.1;
  letter-spacing: -1px;
}

.checkout-product {
  margin-top: 28px;
  padding: 20px;
  border-radius: 26px;
  background:
    radial-gradient(circle at 50% 20%, rgba(65, 105, 255, 0.12), transparent 42%),
    #f8fafc;
  border: 1px solid #e5e7eb;
}

.checkout-product-model {
  height: 260px;
}

.checkout-product-model model-viewer {
  width: 100%;
  height: 100%;
}

.checkout-product h3 {
  margin: 12px 0 4px;
  color: #111827;
  font-size: 24px;
  letter-spacing: -0.5px;
}

.checkout-product p {
  margin: 0;
  color: #64748b;
}

.checkout-list {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.checkout-list div {
  padding: 18px;
  border-radius: 20px;
  background: #f8fafc;
  border: 1px solid #e5e7eb;
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.checkout-list span {
  color: #64748b;
}

.checkout-list strong {
  color: #111827;
  text-align: right;
}

.checkout-form-card {
  padding: 38px;
}

.checkout-submit {
  width: 100%;
  margin-top: 8px;
  border: none;
  font-size: 16px;
}

.alert {
  padding: 16px 18px;
  border-radius: 18px;
  margin-bottom: 22px;
  font-weight: 700;
}

.alert-success {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

.alert-error {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

@media (max-width: 900px) {
  .checkout-grid {
    grid-template-columns: 1fr;
  }

  .checkout-info-card {
    position: static;
  }

  .checkout-hero h1 {
    letter-spacing: -2px;
  }
}

@media (max-width: 560px) {
  .checkout-list div {
    flex-direction: column;
  }

  .checkout-list strong {
    text-align: left;
  }

  .checkout-form-card,
  .checkout-info-card {
    padding: 24px;
    border-radius: 26px;
  }
}
/*Анімація*/
.reveal {
  opacity: 0;
  transform: translateY(42px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.navbar {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1120px, calc(100% - 32px));
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(22px);
  border: 1px solid rgba(148, 163, 184, 0.28);
  z-index: 1000;
  padding: 14px 0;
  border-radius: 999px;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}
.navbar .container {
  max-width: none;
  padding: 0 24px;
}

.nav-link {
  padding: 8px 14px;
  border-radius: 999px;
}

.nav-link.active {
  color: #111827;
  background: rgba(17, 24, 39, 0.06);
}
/*мобілка */
@media (max-width: 768px) {
  body {
    overflow-x: hidden;
  }

  .navbar {
    top: 10px;
    width: calc(100% - 20px);
    padding: 10px 0;
    border-radius: 26px;
  }

  .navbar .container {
    padding: 0 50px;
  }

  .nav-content {
    gap: 4px;
  }

  .logo {
    font-size: 21px;
  }

  .nav-links {
    gap: 8px;
  }

  .nav-link {
    font-size: 14px;
    padding: 7px 11px;
  }

  .apple-hero {
    min-height: auto;
    padding: 120px 20px 55px;
  }

  .apple-title {
    font-size: 46px;
    line-height: 1;
    letter-spacing: -2px;
  }

  .apple-subtitle {
    font-size: 17px;
    line-height: 1.55;
    margin-top: 22px;
  }

  .apple-model-wrap {
    height: 360px;
    margin-top: 28px;
  }

  .apple-model-hint {
    bottom: 10px;
    font-size: 12px;
    white-space: nowrap;
  }

  .premium-features,
  .premium-specs,
  .buy-section,
  .product-config-section,
  .checkout-section {
    padding-left: 20px;
    padding-right: 20px;
  }

  .premium-features,
  .premium-specs {
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .premium-section-head,
  .premium-specs-head {
    margin-bottom: 42px;
  }

  .premium-section-head h2,
  .premium-specs-head h2 {
    font-size: 42px;
    line-height: 1;
    letter-spacing: -2px;
  }

  .premium-section-head p:not(.apple-eyebrow),
  .premium-specs-head p:not(.apple-eyebrow) {
    font-size: 17px;
  }

  .premium-feature-card {
    min-height: 240px;
    padding: 26px;
    border-radius: 26px;
  }

  .premium-feature-card h3 {
    font-size: 25px;
  }

  .premium-specs-grid {
    border-radius: 26px;
  }

  .premium-spec-item {
    min-height: auto;
    padding: 26px;
  }

  .premium-spec-item strong {
    font-size: 20px;
  }

  .product-page-hero {
    padding-top: 110px;
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .product-page-left h1 {
    font-size: 48px;
    line-height: 1;
    letter-spacing: -2px;
  }

  .product-page-left p:not(.apple-eyebrow) {
    font-size: 17px;
  }

  .product-page-model {
  height: 260px;
  }

  .product-config-grid {
    grid-template-columns: 1fr;
  }

  .product-details-card {
    min-height: auto;
    padding: 28px;
    border-radius: 26px;
  }

  .product-details-card h2 {
    font-size: 38px;
    letter-spacing: -2px;
  }

  .product-details-card p {
    font-size: 17px;
  }

  .product-small-specs {
    grid-template-columns: 1fr;
  }

  .buy-card,
  .product-buy-card {
    position: static;
    padding: 24px;
    border-radius: 26px;
  }

  .checkout-hero {
    padding: 120px 20px 50px;
  }

  .checkout-hero h1 {
    font-size: 44px;
    line-height: 1;
    letter-spacing: -2px;
  }

  .checkout-hero p:not(.apple-eyebrow) {
    font-size: 17px;
  }

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

  .checkout-info-card {
    position: static;
  }

  .checkout-info-card,
  .checkout-form-card {
    padding: 24px;
    border-radius: 26px;
  }

  .checkout-product-model {
    height: 230px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer {
    padding: 45px 20px 25px;
  }

  .footer-content {
    gap: 24px;
  }

  .footer-links {
    flex-direction: column;
    gap: 14px;
  }
}