:root {
  --bg: #0b1220;
  --bg-soft: #111b2f;
  --text: #e9eefc;
  --muted: #a8b4ce;
  --primary: #5bc0ff;
  --border: rgba(255, 255, 255, 0.14);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #08101b, #0b1220 45%, #060b13);
  color: var(--text);
}

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

.container {
  width: min(1040px, calc(100% - 2rem));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  backdrop-filter: blur(12px);
  background: rgba(6, 11, 20, 0.8);
  border-bottom: 1px solid var(--border);
}

.topbar__inner,
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.brand strong {
  display: block;
  font-size: 1rem;
}

.brand small {
  color: var(--muted);
}

.brand__badge {
  display: inline-grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, var(--primary), #7ff4ca);
  color: #04101c;
  font-weight: 800;
}

.nav {
  display: flex;
  gap: 1rem;
  color: var(--muted);
}

.nav a[aria-current='page'],
.nav a:hover {
  color: var(--text);
}

.hero {
  padding: 4rem 0 2.5rem;
}

.hero__grid,
.grid-2,
.grid-3 {
  display: grid;
  gap: 1rem;
}

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

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

h1 {
  margin-top: 0;
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.05;
}

h2,
h3 {
  margin-top: 0;
}

p {
  color: var(--muted);
  line-height: 1.65;
}

.eyebrow {
  color: #88f3cb;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.section {
  padding: 2.5rem 0 4rem;
}

.card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.2rem;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.15);
}

.card h4 {
  margin-top: 0;
}

.card table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
}

.card th,
.card td {
  padding: 0.95rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.card th {
  background: rgba(91, 192, 255, 0.14);
  color: var(--text);
  font-weight: 700;
}

.card tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

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

.card a:hover {
  text-decoration: underline;
}

.admin-table th,
.admin-table td {
  white-space: nowrap;
}

.admin-form {
  display: grid;
  gap: 1rem;
}

.admin-form label {
  display: grid;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 600;
}

.admin-form input[type="text"],
.admin-form input[type="password"],
.admin-form input[type="email"],
.admin-form textarea,
.admin-form select {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.admin-form input:focus,
.admin-form textarea:focus,
.admin-form select:focus {
  outline: none;
  border-color: #5bc0ff;
  box-shadow: 0 0 0 3px rgba(91, 192, 255, 0.12);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

button,
input[type="button"],
input[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: linear-gradient(135deg, #5bc0ff, #2ea9ff);
  color: #04101c;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
}

button:hover,
input[type="button"]:hover,
input[type="submit"]:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 35px rgba(45, 174, 255, 0.18);
}

.button--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

@media (max-width: 900px) {
  .hero__grid,
  .grid-2,
  .grid-3,
  .builds-grid,
  .topbar__inner,
  .footer__inner {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: linear-gradient(135deg, #5bc0ff, #2ea9ff);
  color: #04101c;
  font-weight: 700;
  cursor: pointer;
}

.button--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.form {
  display: grid;
  gap: 0.6rem;
}

.form input,
.form textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: 0.6rem;
  border: 1px solid var(--border);
  background: #0c172a;
  color: var(--text);
}

.footer {
  border-top: 1px solid var(--border);
  background: rgba(3, 8, 14, 0.9);
}

.review-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.review-stars {
  color: #f5c518;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}

.review-body {
  margin: 0;
  flex: 1;
}

.review-body p {
  margin: 0;
  font-style: italic;
}

.review-author {
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 600;
}

.builds-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.build-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0;
}

.build-card__photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.build-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.build-card__body {
  padding: 1.2rem;
}

.build-card__body h3 {
  margin-bottom: 0.4rem;
}

@media (max-width: 900px) {
  .hero__grid,
  .grid-2,
  .grid-3,
  .builds-grid,
  .topbar__inner,
  .footer__inner {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }
}

#db-view {
  margin-top: 1rem;
  overflow: auto;
  max-height: 420px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 0.8rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.05);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.data-table th,
.data-table td {
  padding: 0.85rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
}

.data-table th {
  background: rgba(91, 192, 255, 0.15);
  color: var(--text);
  font-weight: 700;
}

.data-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.025);
}

.data-table td {
  color: var(--text);
}

.data-table .empty-state {
  padding: 2rem;
  text-align: center;
  color: var(--muted);
}

.db-error {
  color: #ff7a7a;
  margin: 0;
}

/* ── Hamburger button ─────────────────────────────────────────── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.4rem 0.5rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  cursor: pointer;
  flex-shrink: 0;
  -webkit-appearance: none;
  appearance: none;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded='true'] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded='true'] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded='true'] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Google Form ──────────────────────────────────────────────── */
.form-container {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
}

.form-container iframe {
  width: 640px;
  height: 690px;
  display: block;
  margin: 0 auto;
  border: none;
}

/* ── Mobile nav dropdown ──────────────────────────────────────── */
@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  .topbar__inner {
    flex-direction: row;
    align-items: center;
  }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(6, 11, 20, 0.97);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
    z-index: 100;
  }

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

  .nav a {
    padding: 0.85rem 1.5rem;
    border-bottom: 1px solid var(--border);
  }

  .nav a:last-child {
    border-bottom: none;
  }

  /* Mobile Google Form */
  .form-container {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }

  .form-container iframe {
    width: 320px;
    height: 690px;
    display: block;
    margin: 0 auto;
    transform: none;
  }
}