:root {
  --white: #ffffff;
  --blue: #2463eb;
  --blue-hover: #1d4ed8;
  --blue-soft: rgba(36, 99, 235, 0.08);
  --blue-muted: rgba(36, 99, 235, 0.14);
  --bg: #ffffff;
  --bg-alt: #f0f6ff;
  --surface: #ffffff;
  --surface-2: #f5f9ff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --shadow: 0 12px 40px rgba(36, 99, 235, 0.1);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.08);
  --radius: 14px;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: linear-gradient(180deg, var(--bg-alt) 0%, var(--white) 28%, var(--white) 100%);
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
  color: var(--blue-hover);
}

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

.wrap {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(36, 99, 235, 0.06);
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  flex-wrap: wrap;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
  text-decoration: none;
}

.logo span {
  color: var(--blue);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 100;
  width: 44px;
  height: 44px;
  position: relative;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px auto;
  transition: all 0.3s ease;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: center;
}

.nav a {
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.15rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

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

.btn-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}

.btn-primary:hover {
  background: var(--blue-hover);
  border-color: var(--blue-hover);
  color: var(--white);
}

.btn-secondary {
  background: var(--white);
  border-color: var(--blue);
  color: var(--blue);
}

.btn-secondary:hover {
  background: var(--blue-soft);
  color: var(--blue-hover);
}

.hero {
  padding: 3.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

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

.hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

.lead {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 1.5rem;
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.doc-note {
  font-size: 0.85rem;
  color: var(--muted);
}

.hero-visual {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow-lg);
  max-width: 800px;
  margin-inline: auto;
}

.hero-visual img {
  border-radius: calc(var(--radius) - 6px);
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

section {
  padding: 3rem 0;
}

section:nth-of-type(even) {
  background: var(--bg-alt);
  border-block: 1px solid var(--blue-muted);
}

.section-title {
  font-size: 1.5rem;
  margin: 0 0 0.35rem;
  color: var(--text);
}

.section-sub {
  color: var(--muted);
  margin: 0 0 1.75rem;
  max-width: 70ch;
}

.highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  color: var(--text);
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.stage {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
}

.stage img {
  max-height: min(450px, 60vh);
  width: auto;
  margin-inline: auto;
}

.video-container {
  max-width: 800px;
  margin-inline: auto;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow-lg);
}

.video-container video {
  width: 100%;
  border-radius: calc(var(--radius) - 6px);
  display: block;
}

.download-box {
  background: var(--bg-alt);
  border: 1px solid var(--blue-muted);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
}

.thumbs {
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x mandatory;
}

.thumbs button {
  flex: 0 0 120px;
  scroll-snap-align: start;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface-2);
  cursor: pointer;
  opacity: 0.85;
  transition: opacity 0.15s ease, border-color 0.15s ease;
}

.thumbs button:hover,
.thumbs button.is-active {
  opacity: 1;
  border-color: var(--blue);
}

.thumbs img {
  width: 100%;
  height: auto;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.thumbs::-webkit-scrollbar {
  height: 6px;
}
.thumbs::-webkit-scrollbar-track {
  background: var(--surface-2);
  border-radius: 10px;
}
.thumbs::-webkit-scrollbar-thumb {
  background: var(--blue-muted);
  border-radius: 10px;
}

.spec-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--white);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

table.spec {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: var(--white);
}

table.spec th,
table.spec td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  color: var(--text);
}

table.spec thead th {
  width: 33.33%;
  color: var(--muted);
  font-weight: 600;
}

table.spec tbody th {
  width: 32%;
  color: var(--muted);
  font-weight: 500;
}

table.spec tr:last-child th,
table.spec tr:last-child td {
  border-bottom: none;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 800px) {
  .two-col {
    grid-template-columns: 1fr;
  }
}

.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Modal */
.quote-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.quote-modal.is-open {
  display: flex;
}

.quote-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
}

.quote-modal__dialog {
  position: relative;
  background: var(--white);
  border-radius: var(--radius);
  width: min(640px, 100%);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  overflow-y: auto;
}

.quote-modal__title {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
}

.quote-modal__lead {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.quote-form__row {
  margin-bottom: 1rem;
}

.quote-form__row label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.quote-form__row input,
.quote-form__row textarea {
  width: 100%;
  padding: 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
}

.quote-form__row--half {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.quote-form__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.quote-modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--muted);
}