:root {
  --bg: #0f1c17;
  --bg-elevated: #173028;
  --surface: #1d3a30;
  --ink: #eef6f1;
  --muted: #9db5aa;
  --accent: #3dcf8e;
  --accent-ink: #062417;
  --danger: #e85d4c;
  --warn: #e0b14a;
  --line: rgba(238, 246, 241, 0.12);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --font: "DM Sans", "Segoe UI", sans-serif;
  --display: "Instrument Serif", Georgia, serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(61, 207, 142, 0.18), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(45, 120, 95, 0.25), transparent 55%),
    linear-gradient(160deg, #0b1512 0%, #12241d 45%, #0f1c17 100%);
}

body { min-height: 100vh; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.brand, .brand-hero {
  font-family: var(--display);
  font-size: 1.6rem;
  color: var(--ink);
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand-sm { font-size: 1.15rem; }
.brand-hero {
  font-size: clamp(2.4rem, 6vw, 4rem);
  margin: 0 0 0.5rem;
  line-height: 1;
}

.app-nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.nav-user { color: var(--muted); font-size: 0.9rem; }

.app-main, .auth-main, .client-main {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.viewer-main { width: 100%; margin: 0; padding: 0; }

.panel, .auth-panel {
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.panel-narrow, .auth-panel { width: min(480px, 100%); margin-inline: auto; }

.panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: var(--accent);
  margin: 0 0 0.4rem;
}

h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 0 0 0.5rem;
  line-height: 1.1;
}

h2 {
  font-size: 1.05rem;
  margin: 0 0 0.5rem;
}

.lede {
  color: var(--muted);
  margin: 0 0 1rem;
  line-height: 1.5;
  max-width: 42rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 0.65rem 1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  background: transparent;
  color: var(--ink);
}

.btn:hover { text-decoration: none; filter: brightness(1.05); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-secondary {
  background: var(--surface);
  border-color: var(--line);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--muted);
}

.btn-danger {
  background: color-mix(in srgb, var(--danger) 20%, transparent);
  border-color: color-mix(in srgb, var(--danger) 50%, transparent);
  color: #ffd2cc;
}

.btn-lg { padding: 0.9rem 1.3rem; font-size: 1.05rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }

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

.field { display: grid; gap: 0.4rem; }
.field span { color: var(--muted); font-size: 0.9rem; }
.field input[type="text"],
.field input[type="email"],
.field input[type="password"],
.copy-input {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.25);
  color: var(--ink);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  font: inherit;
}

.check-field {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  color: var(--muted);
}

.session-list { display: grid; gap: 0.75rem; }

.session-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.18);
}

.session-row-actions { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border: 1px solid var(--line);
  color: var(--muted);
}

.status-pending, .status-awaiting_consent { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.status-active { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
.status-ended, .status-revoked { color: #c9b2ae; }

.meta, .fine-print { color: var(--muted); font-size: 0.88rem; }
.meta-list { display: grid; gap: 0.65rem; margin: 0; }
.meta-list div { display: grid; grid-template-columns: 8rem 1fr; gap: 0.5rem; }
.meta-list dt { color: var(--muted); }
.meta-list dd { margin: 0; }

.detail-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1.5rem;
}

.copy-row { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; }
.copy-input { font-family: ui-monospace, monospace; font-size: 0.85rem; }

.flash {
  width: min(1100px, calc(100% - 2rem));
  margin: 1rem auto 0;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--line);
}

.flash-notice { background: color-mix(in srgb, var(--accent) 15%, transparent); }
.flash-alert { background: color-mix(in srgb, var(--danger) 18%, transparent); }

.empty-state {
  padding: 2rem 0;
  color: var(--muted);
}

.client-hero, .auth-panel {
  min-height: calc(100vh - 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.client-hero {
  width: min(720px, 100%);
  margin: 0 auto;
  padding: 2rem 0;
}

.client-status { margin: 1.5rem 0; }
.client-steps {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
  color: var(--muted);
  line-height: 1.55;
}
.client-steps li + li { margin-top: 0.35rem; }
.agent-download-actions {
  margin: 1.1rem 0;
  flex-wrap: wrap;
}
.token-display {
  margin: 1rem 0;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid var(--line);
  overflow-wrap: anywhere;
}
.token-display code { font-size: 1rem; }
.client-actions { margin-top: 1rem; }

.viewer-body { background: #050a08; }
.viewer {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
}
.viewer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 16, 13, 0.92);
}
.viewer-hint { color: var(--muted); font-size: 0.9rem; }
.viewer-stage {
  position: relative;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px) 0 0 / 32px 32px,
    #07110d;
  display: grid;
  place-items: center;
}
.remote-video {
  width: 100%;
  height: calc(100vh - 64px);
  object-fit: contain;
  background: #000;
  cursor: crosshair;
}
.viewer-placeholder {
  position: absolute;
  color: var(--muted);
  text-align: center;
  max-width: 28rem;
  padding: 1rem;
}
.viewer-placeholder[hidden] { display: none; }

@media (max-width: 800px) {
  .panel-heading, .session-row, .detail-grid { grid-template-columns: 1fr; flex-direction: column; display: flex; }
  .detail-grid { display: grid; }
  .meta-list div { grid-template-columns: 1fr; }
  .copy-row { flex-direction: column; }
}