.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  max-height: 42px;
  line-height: 1;
}

/*
  Lighthouse Networking static site stylesheet
  Synology Web Station compatible (no build step required)
*/

:root {
  --bg-0: #06080f;
  --bg-1: #0b1220;
  --bg-2: #111a2e;
  --text-0: #f3f7ff;
  --text-1: #b7c2d8;
  --text-2: #8b96af;
  --line: rgba(255, 255, 255, 0.12);
  --glass: rgba(255, 255, 255, 0.06);
  --glass-strong: rgba(255, 255, 255, 0.1);
  --accent: #42d5ff;
  --accent-2: #6effc7;
  --danger: #ff6f8f;
  --warning: #ffc86e;
  --ok: #6effc7;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  --maxw: 1160px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", "Inter", "SF Pro Text", "Noto Sans", sans-serif;
  color: var(--text-0);
  background:
    radial-gradient(circle at 15% -10%, rgba(66, 213, 255, 0.17), transparent 38%),
    radial-gradient(circle at 90% 10%, rgba(110, 255, 199, 0.11), transparent 30%),
    linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%);
  min-height: 100vh;
}

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

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

.container {
  width: min(var(--maxw), calc(100% - 2rem));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(6, 8, 15, 0.76);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-link {
  padding: 0.58rem 0.82rem;
  border-radius: 999px;
  color: var(--text-1);
  font-size: 0.92rem;
  transition: all 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  background: var(--glass);
  color: var(--text-0);
}

.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: var(--glass);
  color: var(--text-0);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  font-size: 1.05rem;
  cursor: pointer;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.45rem;
  padding: 0 0 1rem;
}

.mobile-menu.open {
  display: flex;
}

.page {
  padding: 2.2rem 0 4.5rem;
}

.hero,
.card,
.panel,
.timeline-item,
.service-card,
.tutorial-card,
.project-card,
.contact-card,
.gallery-slot,
.step,
.badge,
.diag-node {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  padding: clamp(1.4rem, 3vw, 2.7rem);
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: -120px -40px auto auto;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(66, 213, 255, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.kicker {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.17em;
  font-size: 0.72rem;
  font-weight: 700;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

h1 {
  margin-top: 0.8rem;
  font-size: clamp(1.8rem, 3.8vw, 3rem);
  line-height: 1.16;
}

.subtitle {
  margin-top: 0.8rem;
  color: var(--text-1);
  font-size: clamp(1rem, 2vw, 1.24rem);
}

.lead {
  margin-top: 1rem;
  color: var(--text-1);
  max-width: 74ch;
  line-height: 1.65;
}

.section {
  margin-top: 2.2rem;
}

.section-head {
  margin-bottom: 0.95rem;
}

.section-head h2 {
  font-size: clamp(1.25rem, 2.2vw, 1.8rem);
}

.section-head p {
  margin-top: 0.5rem;
  color: var(--text-1);
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid.cards-5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.grid.cards-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

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

.card,
.panel,
.timeline-item,
.service-card,
.tutorial-card,
.project-card,
.contact-card,
.gallery-slot,
.step,
.diag-node {
  padding: 1rem;
  transition: transform 0.24s ease, border-color 0.24s ease, background 0.24s ease;
}

.card:hover,
.panel:hover,
.timeline-item:hover,
.service-card:hover,
.tutorial-card:hover,
.project-card:hover,
.contact-card:hover,
.gallery-slot:hover,
.step:hover,
.diag-node:hover {
  transform: translateY(-4px);
  border-color: rgba(66, 213, 255, 0.5);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.03));
}

.card-title {
  font-weight: 650;
  font-size: 1.03rem;
}

.card-text {
  margin-top: 0.55rem;
  color: var(--text-1);
  line-height: 1.56;
  font-size: 0.95rem;
}

.card-link,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  margin-top: 0.95rem;
  padding: 0.55rem 0.86rem;
  border-radius: 10px;
  border: 1px solid rgba(66, 213, 255, 0.45);
  background: rgba(66, 213, 255, 0.12);
  color: #c8f5ff;
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.2s ease;
  cursor: pointer;
}

.card-link:hover,
.btn:hover {
  background: rgba(66, 213, 255, 0.23);
}

.status-value {
  margin-top: 0.55rem;
  font-size: 1.55rem;
  font-weight: 700;
}

.status-sub {
  margin-top: 0.35rem;
  color: var(--text-1);
  font-size: 0.9rem;
}

.status-ok {
  color: var(--ok);
}

.status-warn {
  color: var(--warning);
}

.status-offline {
  color: var(--danger);
}

.highlight-list {
  display: grid;
  gap: 0.85rem;
}

.highlight-item {
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  padding: 0.85rem;
  color: var(--text-1);
}

.skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.badge {
  border-radius: 999px;
  padding: 0.52rem 0.9rem;
  font-size: 0.86rem;
  color: #d7f8ff;
  border-color: rgba(66, 213, 255, 0.4);
  background: rgba(66, 213, 255, 0.13);
}

.timeline {
  display: grid;
  gap: 0.8rem;
}

.timeline-item {
  position: relative;
  padding-left: 2.2rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 1.23rem;
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(66, 213, 255, 0.18);
}

.timeline-item p {
  color: var(--text-1);
  margin-top: 0.3rem;
}

.diagram {
  display: grid;
  gap: 0.8rem;
}

.diag-node h3 {
  font-size: 1rem;
}

.diag-node p {
  margin-top: 0.38rem;
  color: var(--text-1);
  font-size: 0.92rem;
}

.arrow {
  text-align: center;
  color: var(--accent);
  font-size: 1.2rem;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #b2eeff;
  background: rgba(66, 213, 255, 0.14);
  border: 1px solid rgba(66, 213, 255, 0.33);
  border-radius: 999px;
  padding: 0.24rem 0.56rem;
  margin-bottom: 0.55rem;
}

.project-image,
.gallery-slot {
  min-height: 140px;
  display: grid;
  place-items: center;
  color: var(--text-2);
}

.project-image {
  min-height: 220px;
  max-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0.9rem;
  border: 1px dashed rgba(255, 255, 255, 0.26);
  border-radius: var(--radius-sm);
  background: linear-gradient(130deg, rgba(66, 213, 255, 0.11), rgba(110, 255, 199, 0.08));
  margin-bottom: 0.85rem;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  border-radius: calc(var(--radius-sm) - 4px);
  background: rgba(255, 255, 255, 0.04);
}

@media (max-width: 760px) {
  .project-image {
    min-height: 180px;
    max-height: 180px;
  }
}


ul.clean {
  margin: 0.55rem 0 0;
  padding-left: 1.1rem;
  color: var(--text-1);
}

ul.clean li + li {
  margin-top: 0.35rem;
}

.photo-main {
  position: relative;
  overflow: hidden;
  min-height: 320px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.photo-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-overlay {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  padding: 0.7rem 0.9rem;
  border-radius: 12px;
  background: rgba(6, 8, 15, 0.72);
  color: var(--text-0);
  backdrop-filter: blur(10px);
}

.footer-wrap {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 0 2rem;
  border-top: 1px solid var(--line);
  color: var(--text-1);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-1);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--text-0);
}

.fade-up {
  animation: fadeUp 0.45s ease both;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.leaderboard-hero {
  margin-bottom: 0.6rem;
}

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

.leaderboard-shell {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.leaderboard-table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
}

.leaderboard-table th,
.leaderboard-table td {
  padding: 0.95rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.leaderboard-table th {
  color: var(--text-1);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.03);
}

.leaderboard-table tbody tr:hover {
  background: rgba(66, 213, 255, 0.08);
}

.leaderboard-player {
  font-weight: 700;
  color: var(--text-0);
}

.leaderboard-empty {
  color: var(--text-1);
  text-align: center;
}

.status-card {
  padding: 1rem;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.24s ease, border-color 0.24s ease, background 0.24s ease;
}

.status-card:hover {
  transform: translateY(-4px);
  border-color: rgba(66, 213, 255, 0.4);
  background: linear-gradient(180deg, rgba(66, 213, 255, 0.12), rgba(255, 255, 255, 0.03));
}

.status-card strong {
  display: block;
  margin-top: 0.55rem;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  color: var(--text-0);
}

.status-label {
  display: inline-block;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  font-weight: 700;
}

.status-footnote {
  display: block;
  margin-top: 0.55rem;
  color: var(--text-1);
  font-size: 0.92rem;
}

@media (max-width: 900px) {
  .grid.cards-5,
  .grid.cards-4,
  .grid.cards-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .nav-menu {
    display: none;
  }

  .menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .grid.cards-5,
  .grid.cards-4,
  .grid.cards-3,
  .grid.cards-2,
  .leaderboard-summary {
    grid-template-columns: 1fr;
  }

  .leaderboard-table-wrap {
    overflow-x: auto;
  }

  .leaderboard-table {
    min-width: 620px;
  }

  .footer-wrap {
    align-items: flex-start;
    flex-direction: column;
  }
}


.tutorial-steps .timeline-item {
  overflow: visible;
}

.tutorial-image {
  margin: 1rem 0 0;
}

.tutorial-image img {
  width: auto;
  max-width: 100%;
  max-height: 560px;
  height: auto;
  margin: 0 auto;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.24);
}

.tutorial-image figcaption {
  margin-top: 0.55rem;
  color: var(--text-2);
  font-size: 0.88rem;
  text-align: center;
}


.compose-toolbar {
  display: flex;
  justify-content: flex-start;
}

.compose-section {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.compose-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid var(--line);
}

.compose-header h2 {
  margin-top: 0.35rem;
}

.code-block {
  margin: 0;
  padding: 1rem;
  overflow-x: auto;
  color: #dbeafe;
  background: rgba(3, 7, 18, 0.72);
  font-size: 0.9rem;
  line-height: 1.55;
}

.code-block code {
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  white-space: pre;
}

.copy-btn.copied {
  border-color: rgba(110, 255, 199, 0.55);
  background: rgba(110, 255, 199, 0.18);
}

@media (max-width: 760px) {
  .compose-header {
    align-items: flex-start;
    flex-direction: column;
  }
}


.tag-muted {
  color: #ffdca8;
  background: rgba(255, 200, 110, 0.12);
  border-color: rgba(255, 200, 110, 0.32);
}


.before-after-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.comparison-panel {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.comparison-panel h3 {
  margin-bottom: 0.8rem;
}

.comparison-image {
  margin: 0;
}

.comparison-image img {
  width: 100%;
  height: auto;
  max-height: 620px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
}

@media (max-width: 760px) {
  .before-after-grid {
    grid-template-columns: 1fr;
  }
}