/* =========================================================
   Project418 — design tokens
   Visual language shared with the Project418 Launcher app.
   ========================================================= */

:root {
  /* backgrounds */
  --bg-base: #05070c;
  --bg-panel: #0a0f18;
  --bg-panel-elevated: #0e1522;
  --bg-panel-hover: #101a28;

  /* borders */
  --border-muted: rgba(120, 155, 190, 0.22);
  --border-strong: rgba(140, 190, 230, 0.42);
  --border-hairline: rgba(120, 155, 190, 0.14);

  /* accents */
  --cyan: #3ad3ff;
  --cyan-soft: rgba(58, 211, 255, 0.14);
  --blue: #4f8cf7;
  --blue-deep: #1c4fc4;

  /* text */
  --text: #eaf3fb;
  --text-muted: #7d92a8;
  --text-faint: #566275;

  /* status */
  --success: #38c98f;
  --success-soft: rgba(56, 201, 143, 0.14);
  --warning: #e6b34d;
  --error: #ef5a5a;
  --error-soft: rgba(239, 90, 90, 0.14);

  /* shape */
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --clip-lg: polygon(0 18px, 18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  --clip-sm: polygon(0 10px, 10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);

  /* spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* shadow / glow */
  --shadow-panel: 0 18px 40px rgba(0, 0, 0, 0.45);
  --glow-cyan-sm: 0 0 12px rgba(58, 211, 255, 0.35);
  --glow-cyan-md: 0 0 28px rgba(58, 211, 255, 0.32);
  --glow-blue-md: 0 0 24px rgba(79, 140, 247, 0.4);

  /* motion */
  --t-fast: 120ms ease;
  --t-base: 200ms ease;

  --font-ui: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --t-fast: 1ms;
    --t-base: 1ms;
  }
}

/* =========================================================
   Reset / base
   ========================================================= */

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  color: var(--text);
  background: var(--bg-base);
  overflow-x: hidden;
}

/* global technical backdrop: faint grid + soft cyan glow, stays behind content */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 900px 500px at 18% -6%, rgba(58, 211, 255, 0.12), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 20%, rgba(79, 140, 247, 0.08), transparent 55%),
    linear-gradient(180deg, #03050a 0%, #060a12 45%, #03050a 100%);
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(120, 170, 210, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 170, 210, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
  pointer-events: none;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--cyan);
  color: #001018;
  font-weight: 700;
  padding: 10px 16px;
  text-decoration: none;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.icon {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  flex: 0 0 auto;
}

/* =========================================================
   Header / topbar
   ========================================================= */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  width: 100%;
  border-bottom: 1px solid var(--border-hairline);
  background: rgba(5, 8, 13, 0.86);
  backdrop-filter: blur(14px);
}

.topbar-inner {
  width: min(1180px, 100%);
  min-height: 72px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 0;
}

.brand img {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  filter: drop-shadow(0 0 10px rgba(58, 211, 255, 0.4));
}

.brand-name {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav-links a {
  position: relative;
  color: var(--text-muted);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 12px;
  font-weight: 700;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--t-fast), background var(--t-fast);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--cyan);
  background: var(--cyan-soft);
}

.nav-links a[aria-current="page"] {
  color: var(--cyan);
}

.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--cyan);
  box-shadow: var(--glow-cyan-sm);
}

/* =========================================================
   Layout
   ========================================================= */

.page {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: var(--space-7) 24px var(--space-8);
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-7);
  align-items: start;
  padding-top: var(--space-6);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border: 1px solid var(--border-muted);
  background: var(--bg-panel);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}

.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: var(--glow-cyan-sm);
}

h1 {
  margin: 0;
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--text);
}

h1 .accent {
  color: var(--cyan);
  text-shadow: 0 0 22px rgba(58, 211, 255, 0.35);
}

.subtitle {
  margin-top: var(--space-4);
  max-width: 560px;
  color: var(--text-muted);
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.6;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-6);
  align-items: center;
}

/* animated entrance, respects reduced-motion via --t-base collapsing to 1ms */
.hero-copy {
  animation: hero-in 520ms ease both;
}

@keyframes hero-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-copy {
    animation: none;
  }
}

/* =========================================================
   Buttons
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border: 0;
  cursor: pointer;
  font-family: var(--font-ui);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  font-size: 13px;
  padding: 16px 26px;
  border-radius: var(--radius-sm);
  transition: transform var(--t-fast), box-shadow var(--t-fast), filter var(--t-fast), background var(--t-fast);
  clip-path: var(--clip-sm);
}

.btn:active {
  transform: translateY(1px) scale(0.99);
}

.btn[disabled],
.btn.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  color: #051018;
  background: linear-gradient(180deg, #6fd6ff 0%, var(--blue) 55%, var(--blue-deep) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -3px 6px rgba(6, 20, 45, 0.35),
    0 10px 24px rgba(20, 60, 140, 0.35),
    var(--glow-cyan-sm);
}

.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.55),
    inset 0 -3px 6px rgba(6, 20, 45, 0.35),
    0 12px 28px rgba(20, 60, 140, 0.45),
    var(--glow-cyan-md);
  transform: translateY(-1px);
}

.btn-primary.is-loading {
  color: transparent;
  pointer-events: none;
}

.btn-primary.is-loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(5, 16, 24, 0.35);
  border-top-color: #051018;
  animation: spin 700ms linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn-primary.is-loading::after {
    animation-duration: 1600ms;
  }
}

.btn-secondary {
  position: relative;
  color: var(--cyan);
  background: var(--bg-panel);
  border: 1px solid var(--border-muted);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: var(--border-strong);
  background: var(--bg-panel-hover);
  box-shadow: var(--glow-cyan-sm);
}

.btn-secondary .icon {
  color: var(--cyan);
}

.note {
  color: var(--text-faint);
  font-size: 13px;
  max-width: 260px;
}

/* =========================================================
   Panels
   ========================================================= */

.panel {
  position: relative;
  background: var(--bg-panel);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-panel);
}

.panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--space-4);
  right: var(--space-4);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(58, 211, 255, 0.55), transparent);
}

.panel + .panel {
  margin-top: var(--space-4);
}

.panel-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: var(--space-2);
}

.panel-title {
  margin: 0 0 var(--space-3);
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.01em;
}

.panel--clickable {
  transition: border-color var(--t-base), box-shadow var(--t-base), transform var(--t-base);
}

.panel--clickable:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-panel), var(--glow-cyan-sm);
}

.panel--disabled {
  opacity: 0.62;
}

.panel--disabled .panel-title {
  color: var(--text-muted);
}

.coming-soon {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--warning);
  border: 1px solid rgba(230, 179, 77, 0.35);
  background: rgba(230, 179, 77, 0.08);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  margin-left: var(--space-2);
  vertical-align: middle;
}

/* launcher info panel (hero side) */
.info-panel {
  border: 1px solid var(--border-muted);
  background: var(--bg-panel-elevated);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
  clip-path: var(--clip-lg);
  padding: var(--space-5) var(--space-5) var(--space-6);
}

.info-panel-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-hairline);
}

.info-panel-header img {
  width: 34px;
  height: 34px;
  filter: drop-shadow(0 0 8px rgba(58, 211, 255, 0.35));
}

.info-panel-header strong {
  display: block;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}

.info-panel-header span {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
}

.info-rows {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2) var(--space-4);
  font-size: 13px;
}

.info-rows dt {
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 11px;
  align-self: center;
}

.info-rows dd {
  margin: 0;
  font-family: var(--font-mono);
  color: var(--text);
  overflow-wrap: anywhere;
}

/* =========================================================
   Server status
   ========================================================= */

.server-status {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.status-dot {
  width: 11px;
  height: 11px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--text-faint);
  box-shadow: 0 0 10px rgba(125, 146, 168, 0.4);
  transition: background var(--t-base), box-shadow var(--t-base);
}

.status-dot--online {
  background: var(--success);
  box-shadow: 0 0 14px rgba(56, 201, 143, 0.7);
}

.status-dot--offline {
  background: var(--error);
  box-shadow: 0 0 14px rgba(239, 90, 90, 0.6);
}

.status-dot--unknown {
  background: var(--text-faint);
  box-shadow: 0 0 10px rgba(125, 146, 168, 0.4);
}

.server-status-copy strong {
  display: block;
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.server-status-copy span {
  display: block;
  color: var(--text);
  font-size: 16px;
  font-weight: 800;
}

.server-status-copy time {
  display: block;
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 2px;
}

/* =========================================================
   Grids
   ========================================================= */

.section {
  margin-top: var(--space-8);
}

.section-head {
  margin-bottom: var(--space-5);
}

.section-head h2 {
  margin: var(--space-1) 0 0;
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.grid .panel {
  margin-top: 0;
}

.stat strong {
  display: block;
  color: var(--cyan);
  font-size: 20px;
  margin-bottom: 4px;
}

.stat span {
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* =========================================================
   Legal
   ========================================================= */

.legal-links {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.legal-panel {
  display: none;
  margin-top: var(--space-4);
}

.legal-panel h2 {
  color: var(--cyan);
  margin-top: 0;
  font-size: 18px;
  text-transform: uppercase;
}

.legal-panel h3 {
  color: var(--blue);
  margin-top: var(--space-5);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.legal-panel p,
.legal-panel li {
  color: var(--text-muted);
  line-height: 1.7;
  font-size: 14px;
}

.legal-panel ul {
  padding-left: 20px;
}

footer.legal {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-hairline);
}

/* =========================================================
   Responsive
   ========================================================= */

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

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

@media (max-width: 700px) {
  .topbar-inner {
    min-height: auto;
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 10px;
  }

  .nav-links {
    width: 100%;
    justify-content: flex-start;
  }

  .page {
    padding: var(--space-5) 16px var(--space-7);
  }

  h1 {
    font-size: clamp(32px, 11vw, 48px);
  }

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

  .btn {
    width: 100%;
    clip-path: none;
    border-radius: var(--radius-md);
  }

  .info-panel {
    clip-path: none;
    border-radius: var(--radius-md);
  }

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

  .note {
    max-width: none;
  }
}