@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap");

:root {
  --bg0: #e8ecf2;
  --bg1: #eef1f6;
  --text: #141820;
  --muted: #5c6570;
  --line: rgba(255, 255, 255, 0.65);
  --glass: rgba(255, 255, 255, 0.42);
  --glass-strong: rgba(255, 255, 255, 0.62);
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 12px 40px rgba(15, 23, 42, 0.06);
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.12);
  --dot-active: #dc2626;
  --radius: 22px;
  --radius-sm: 14px;
  --max: 1120px;
}

[data-theme="dark"] {
  --bg0: #0c1018;
  --bg1: #121826;
  --text: #eef2f7;
  --muted: #9aa3af;
  --line: rgba(255, 255, 255, 0.08);
  --glass: rgba(255, 255, 255, 0.06);
  --glass-strong: rgba(255, 255, 255, 0.1);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.35);
  --accent-soft: rgba(96, 165, 250, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  color: var(--text);
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(255, 255, 255, 0.75), transparent 55%),
    radial-gradient(900px 500px at 100% 20%, rgba(255, 255, 255, 0.45), transparent 50%),
    linear-gradient(165deg, var(--bg0), var(--bg1));
  line-height: 1.55;
}

#site-nav {
  min-height: 72px;
}

.nav-glass {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 28px;
  margin: 16px auto 0;
  max-width: calc(var(--max) + 48px);
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 1;
  justify-content: flex-end;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  justify-content: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.92rem;
  padding: 6px 10px;
  border-radius: 999px;
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.45);
}

[data-theme="dark"] .nav-links a:hover,
[data-theme="dark"] .nav-links a.active {
  background: rgba(255, 255, 255, 0.08);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--glass-strong);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  position: relative;
}

.nav-toggle::before,
.nav-toggle::after {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s;
}

.nav-toggle::before {
  top: 14px;
}

.nav-toggle::after {
  bottom: 14px;
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-block;
  }

  .nav-inner {
    position: fixed;
    inset: 88px 16px auto;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border-radius: var(--radius);
    background: var(--glass-strong);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    backdrop-filter: blur(20px);
    display: none;
    z-index: 50;
  }

  .nav-inner--open {
    display: flex;
  }

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

  .nav-actions {
    flex-direction: column;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 14px 34px rgba(37, 99, 235, 0.28);
  transition: transform 0.15s, box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(37, 99, 235, 0.32);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.55);
  color: var(--text);
  border: 1px solid var(--line);
  box-shadow: none;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.75);
}

[data-theme="dark"] .btn-ghost {
  background: rgba(255, 255, 255, 0.06);
}

.btn-primary-sm {
  padding: 10px 18px;
  font-size: 0.88rem;
}

.hero {
  padding: 72px 22px 48px;
  text-align: center;
  max-width: var(--max);
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  letter-spacing: -0.03em;
  margin: 0 0 16px;
  font-weight: 700;
}

.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto 28px;
}

.section {
  padding: 56px 22px 72px;
  max-width: var(--max);
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 36px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.glass-card {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.25s, box-shadow 0.25s;
}

.glass-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.glass-card h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.glass-card p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

.card-actions .btn {
  width: 100%;
  background: rgba(20, 24, 32, 0.88);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.15);
}

.card-actions .btn:hover {
  background: rgba(20, 24, 32, 0.95);
}

/* 3D carousel */
.carousel-wrap {
  position: relative;
  margin-top: 8px;
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.carousel-viewport {
  position: relative;
  perspective: 1400px;
  overflow: hidden;
  height: min(400px, 70vw);
  margin: 0 auto;
  max-width: 920px;
}

.carousel-track {
  position: relative;
  height: 100%;
  transform-style: preserve-3d;
}

[data-carousel-slide] {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(540px, 88vw);
  transition:
    transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.45s ease;
  transform-origin: center center;
  will-change: transform, opacity;
}

[data-carousel-slide][data-pos="0"] {
  transform: translate(-50%, -50%) translateZ(0) scale(1);
  opacity: 1;
  z-index: 5;
}

[data-carousel-slide][data-pos="-1"] {
  transform: translate(-128%, -50%) translateZ(-140px) rotateY(14deg) scale(0.9);
  opacity: 0.55;
  z-index: 2;
}

[data-carousel-slide][data-pos="1"] {
  transform: translate(28%, -50%) translateZ(-140px) rotateY(-14deg) scale(0.9);
  opacity: 0.55;
  z-index: 2;
}

[data-carousel-slide][data-pos="hide"] {
  transform: translate(-50%, -50%) translateZ(-320px) scale(0.72);
  opacity: 0;
  pointer-events: none;
  z-index: 0;
}

.carousel-slide-inner {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  min-height: 280px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(20px);
}

[data-theme="dark"] .carousel-slide-inner {
  background: rgba(255, 255, 255, 0.05);
}

.carousel-slide-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: rgba(255, 255, 255, 0.75);
}

[data-theme="dark"] .carousel-slide-brand {
  background: rgba(255, 255, 255, 0.06);
}

.carousel-logo {
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-align: center;
  color: var(--muted);
}

.carousel-slide-body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.28);
}

[data-theme="dark"] .carousel-slide-body {
  background: rgba(255, 255, 255, 0.04);
}

.carousel-slide-body h3 {
  margin: 0;
  font-size: 1.15rem;
}

.carousel-slide-body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.carousel-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--glass-strong);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(12px);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1;
  transition: transform 0.15s;
}

.carousel-btn:hover {
  transform: scale(1.05);
}

.carousel-btn:active {
  transform: scale(0.98);
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: rgba(15, 23, 42, 0.18);
  cursor: pointer;
  padding: 0;
  transition: transform 0.2s, background 0.2s;
}

.carousel-dot.is-active {
  background: var(--dot-active);
  transform: scale(1.15);
}

[data-theme="dark"] .carousel-dot {
  background: rgba(255, 255, 255, 0.22);
}

.back-to-top {
  display: flex;
  justify-content: center;
  margin: 28px 0 8px;
}

.back-to-top a {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--line);
  background: var(--glass);
  box-shadow: var(--shadow-soft);
}

/* Forms */
.form-panel {
  max-width: 560px;
  margin: 0 auto;
}

.form-panel--wide {
  max-width: 720px;
}

.form-grid {
  display: grid;
  gap: 16px;
}

label.field {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 6px;
}

input,
textarea,
select {
  width: 100%;
  padding: 13px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
  color: var(--text);
  font: inherit;
  outline: none;
  transition: border 0.2s, box-shadow 0.2s;
}

[data-theme="dark"] input,
[data-theme="dark"] textarea,
[data-theme="dark"] select {
  background: rgba(255, 255, 255, 0.06);
}

input:focus,
textarea:focus,
select:focus {
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

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

.form-status {
  font-size: 0.9rem;
  margin-top: 8px;
  color: var(--muted);
}

.form-status--error {
  color: #b91c1c;
}

.form-status--ok {
  color: #15803d;
}

/* Contact (beam-inspired) */
.contact-hero {
  text-align: center;
  margin-bottom: 32px;
}

.contact-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
}

.contact-hero p {
  margin: 0;
  color: var(--muted);
}

.contact-steps {
  display: grid;
  gap: 20px;
}

.contact-step {
  padding: 22px 24px;
}

.contact-step h2 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.contact-step .hint {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-inline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.search-select-wrap {
  position: relative;
}

.search-select-wrap input {
  margin-bottom: 8px;
}

.blueprint-list {
  max-height: 200px;
  overflow-y: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.45);
}

[data-theme="dark"] .blueprint-list {
  background: rgba(255, 255, 255, 0.05);
}

.blueprint-item {
  padding: 10px 12px;
  cursor: pointer;
  font-size: 0.92rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.blueprint-item:hover,
.blueprint-item.is-selected {
  background: var(--accent-soft);
}

.blueprint-item:last-child {
  border-bottom: none;
}

.mono {
  font-variant-numeric: tabular-nums;
}

.glass-footer {
  margin-top: 48px;
  padding: 28px 22px 40px;
  border-top: 1px solid var(--line);
  background: transparent;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  justify-content: center;
  align-items: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner a {
  color: var(--muted);
  text-decoration: none;
}

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

.page-shell {
  padding-bottom: 32px;
}

@media (max-width: 720px) {
  .carousel-slide-inner {
    grid-template-columns: 1fr;
  }

  .carousel-slide-brand {
    min-height: 100px;
  }
}