:root {
  --bg: #0a0d12;
  --panel: rgba(17, 24, 34, 0.84);
  --panel-strong: rgba(21, 30, 43, 0.94);
  --line: rgba(226, 232, 240, 0.14);
  --text: #f5f7fb;
  --muted: #aeb9c8;
  --blue: #51b8ff;
  --mint: #60e6bb;
  --gold: #f0c96b;
  --rose: #ff7f9b;
}

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

#matrixCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 13, 18, 0.18), rgba(10, 13, 18, 0.76)),
    radial-gradient(circle at 18% 18%, rgba(81, 184, 255, 0.18), transparent 34%),
    radial-gradient(circle at 82% 20%, rgba(240, 201, 107, 0.12), transparent 30%),
    radial-gradient(circle at 72% 88%, rgba(96, 230, 187, 0.12), transparent 34%);
  pointer-events: none;
}

.shell {
  position: relative;
  width: min(1180px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 36px 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.hero,
.panel,
.admin-panel {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: 0 22px 80px rgba(0, 0, 0, 0.34);
}

.hero {
  min-height: 156px;
  padding: 28px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--mint);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(44px, 8vw, 88px);
  line-height: 0.92;
}

h2 {
  font-size: 24px;
}

.session {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  text-align: right;
  max-width: 420px;
}

.panel {
  padding: 22px;
}

.login-grid {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) minmax(160px, 1fr) auto;
  gap: 14px;
  align-items: end;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}

input {
  min-height: 46px;
  border: 1px solid var(--line);
  background: rgba(5, 8, 13, 0.62);
  color: var(--text);
  padding: 0 14px;
  outline: none;
}

input:focus {
  border-color: rgba(81, 184, 255, 0.72);
}

.primary,
.ghost,
.space-card,
.admin-link {
  border-radius: 8px;
}

.primary,
.ghost {
  min-height: 46px;
  border: 1px solid transparent;
  padding: 0 18px;
  cursor: pointer;
}

.primary {
  background: linear-gradient(135deg, var(--blue), var(--mint));
  color: #03121b;
  font-weight: 800;
}

.ghost {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--line);
  color: var(--text);
}

.status {
  min-height: 20px;
  margin: 12px 0 0;
  color: var(--muted);
}

.status.error {
  color: #ffc2ce;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 18px;
  align-items: start;
}

.spaces-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.space-card {
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 22px;
  padding: 20px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  overflow: hidden;
  position: relative;
}

.space-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), transparent 58%);
  opacity: 0.22;
}

.space-card > * {
  position: relative;
}

.space-card h2 {
  font-size: 26px;
}

.space-card p {
  max-width: 34rem;
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.42;
}

.space-card span {
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
}

.admin-panel {
  padding: 20px;
  display: grid;
  gap: 12px;
}

.admin-link {
  display: block;
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  padding: 14px;
  text-decoration: none;
}

.hidden {
  display: none !important;
}

@media (max-width: 860px) {
  .hero,
  .login-grid,
  .workspace {
    grid-template-columns: 1fr;
  }

  .hero {
    display: grid;
  }

  .session {
    text-align: left;
    align-items: flex-start;
    flex-direction: column;
  }

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