:root {
  --bg: #f6f8fc;
  --panel: #ffffff;
  --panel-soft: #eef4fb;
  --text: #16202e;
  --muted: #64748b;
  --line: #dbe5f0;
  --primary: #246bfe;
  --primary-dark: #174cc7;
  --accent: #13a38b;
  --danger: #d43f3a;
  --warning: #b7791f;
  --shadow: 0 18px 44px rgba(15, 23, 42, 0.1);
  --shadow-soft: 0 10px 26px rgba(15, 23, 42, 0.06);
  --glow: color-mix(in srgb, var(--primary) 17%, transparent);
}

body.theme-green { --bg: #f4fbf6; --primary: #1b8f65; --primary-dark: #116346; --panel-soft: #edf8f1; }
body.theme-blue { --bg: #f3f9fd; --primary: #1476a8; --primary-dark: #0e5274; --panel-soft: #eaf6fc; }
body.theme-pink { --bg: #fff7fb; --primary: #cc4f83; --primary-dark: #9b325f; --panel-soft: #fff0f6; }
body.theme-violet { --bg: #f8f5ff; --primary: #7c3aed; --primary-dark: #5b21b6; --panel-soft: #f0eaff; }
body.theme-teal { --bg: #f2fbfb; --primary: #0f9f9a; --primary-dark: #0b706d; --panel-soft: #e5f8f7; }
body.theme-dark {
  --bg: #0f1724;
  --panel: #172132;
  --panel-soft: #202d42;
  --text: #f8fafc;
  --muted: #bac6d6;
  --line: #334155;
  --primary: #65a7ff;
  --primary-dark: #3685ee;
  --shadow: 0 18px 46px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 10px 26px rgba(0, 0, 0, 0.22);
}
body.theme-dark .auth-shell {
  background: rgba(23, 33, 50, 0.72);
  border-color: rgba(255, 255, 255, 0.14);
}
body.theme-dark .auth-brand,
body.theme-dark .auth-panel {
  background: rgba(23, 33, 50, 0.72);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg) 88%, var(--panel-soft)), var(--bg) 340px);
  color: var(--text);
  font-family: Inter, Segoe UI, Arial, sans-serif;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    linear-gradient(90deg, rgba(7, 13, 25, 0.5), rgba(7, 13, 25, 0.22)),
    url("/auth-background.png") center / cover no-repeat fixed;
}
.auth-shell {
  width: min(980px, 100%);
  display: grid;
  grid-template-columns: 1fr 420px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
  backdrop-filter: blur(16px);
}
.auth-brand {
  padding: 56px;
  background: rgba(238, 244, 251, 0.7);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.auth-brand h1 { margin: 18px 0 8px; font-size: 44px; letter-spacing: 0; }
.auth-brand p { color: var(--muted); line-height: 1.6; max-width: 480px; }
.auth-panel {
  padding: 36px;
  background: rgba(255, 255, 255, 0.7);
}
.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 22px; }
.tab {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  border-radius: 6px;
  padding: 10px;
}
.tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.auth-form { display: grid; gap: 15px; }
label { display: grid; gap: 7px; color: var(--muted); font-size: 14px; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: 6px;
  padding: 10px 12px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 14%, transparent);
}
textarea { min-height: 90px; resize: vertical; }
.hidden { display: none !important; }
.message { color: var(--danger); min-height: 20px; }
.primary, .secondary, .danger, .ghost {
  border: 0;
  border-radius: 6px;
  padding: 10px 14px;
  min-height: 40px;
  font-weight: 750;
}
.primary { background: var(--primary); color: #fff; }
.primary:hover { background: var(--primary-dark); }
.secondary { background: var(--panel-soft); color: var(--text); border: 1px solid var(--line); }
.danger { background: var(--danger); color: #fff; }
.ghost { background: transparent; color: var(--primary); }
.primary, .secondary, .danger, .ghost, .icon-action {
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}
.primary:hover, .secondary:hover, .danger:hover, .ghost:hover, .icon-action:hover {
  transform: translateY(-1px);
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: 64px;
  display: grid;
  grid-template-columns: 48px 1fr 48px;
  align-items: center;
  gap: 12px;
  padding: 0 18px;
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.brand { justify-self: center; display: inline-flex; align-items: center; gap: 10px; font-weight: 900; }
.brand-logo {
  width: 38px;
  height: 38px;
  display: block;
  border-radius: 10px;
  box-shadow: 0 10px 22px color-mix(in srgb, var(--primary) 24%, transparent);
}
.auth-logo {
  width: 74px;
  height: 74px;
  border-radius: 18px;
  box-shadow: 0 16px 32px color-mix(in srgb, var(--primary) 25%, transparent);
}
.logo-mark {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 900;
  box-shadow: 0 12px 24px color-mix(in srgb, var(--primary) 26%, transparent);
}
.logo-mark.small { width: 36px; height: 36px; font-size: 13px; }
.icon-button, .avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--panel-soft);
  color: var(--text);
}
.avatar { justify-self: end; font-weight: 800; background: var(--primary); color: #fff; }
.sidebar {
  position: fixed;
  top: 64px;
  bottom: 0;
  left: 0;
  width: 252px;
  padding: 18px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--primary) 7%, var(--panel)), var(--panel) 190px),
    color-mix(in srgb, var(--panel) 96%, var(--panel-soft));
  border-right: 1px solid var(--line);
  transform: translateX(-100%);
  transition: 0.18s ease;
  z-index: 9;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.sidebar.open { transform: translateX(0); }
.nav-section { flex: 1 0 auto; }
.nav-footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  flex: 0 0 auto;
}
.nav-button {
  display: block;
  width: 100%;
  text-align: left;
  margin-bottom: 8px;
  padding: 11px 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  border-radius: 6px;
  font-weight: 700;
}
.nav-button.active, .nav-button:hover {
  background: var(--panel-soft);
  border-color: var(--line);
  color: var(--primary);
}
.logout-button {
  color: var(--danger);
  font-weight: 700;
}
.logout-button:hover {
  background: #fdecea;
  border-color: #f5b9b5;
}
.app-main {
  width: min(1180px, calc(100% - 28px));
  margin: 24px auto 56px;
}
.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 26px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 8%, var(--panel)), var(--panel) 52%);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}
.hero h1 { margin: 0 0 8px; font-size: 30px; letter-spacing: 0; }
.hero p { margin: 0; color: var(--muted); line-height: 1.5; }
.hero-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.hero-title-row h1 { margin: 0; }
.icon-action {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--panel-soft);
  color: var(--text);
  font-size: 21px;
  font-weight: 800;
  line-height: 1;
  box-shadow: var(--shadow-soft);
}
.icon-action:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.12);
}
.icon-action::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 9px);
  transform: translateX(-50%) translateY(4px);
  width: max-content;
  max-width: 180px;
  padding: 6px 9px;
  border-radius: 6px;
  background: var(--text);
  color: var(--panel);
  font-size: 12px;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  box-shadow: var(--shadow);
  transition: opacity 0.14s ease, transform 0.14s ease;
  z-index: 30;
}
.icon-action::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: calc(100% + 3px);
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--text);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.14s ease;
  z-index: 30;
}
.icon-action:hover::after, .icon-action:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.icon-action:hover::before, .icon-action:focus-visible::before { opacity: 1; }
.add-action {
  background: #e8f7f2;
  color: #0f7a65;
  border-color: #b8e5d8;
}
.edit-action {
  background: #edf4ff;
  color: #195fc3;
  border-color: #c6dafb;
}
.delete-action {
  background: #fdecea;
  color: var(--danger);
  border-color: #f4b8b4;
}
.back-button {
  width: 38px;
  height: 38px;
  font-size: 23px;
}
.grid { display: grid; gap: 16px; }
.grid.metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 18px 0; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card, .metric {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  box-shadow: var(--shadow-soft);
}
.card:hover, .metric:hover { border-color: color-mix(in srgb, var(--primary) 16%, var(--line)); }
.metric span { color: var(--muted); font-size: 13px; }
.metric strong { display: block; margin-top: 8px; font-size: 30px; }
.metric strong { color: var(--primary); }
.section-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin: 24px 0 12px;
}
.section-title h2 { margin: 0; font-size: 20px; }
.table-wrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { padding: 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 13px; background: var(--panel-soft); }
tbody tr:hover { background: color-mix(in srgb, var(--primary) 5%, transparent); }
.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 12px;
  background: var(--panel-soft);
  color: var(--text);
  border: 1px solid var(--line);
}
.badge.good { background: #e7f7ef; color: #116346; }
.badge.warn { background: #fff7df; color: #8a5a00; }
.badge.bad { background: #fdecea; color: #9f241f; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.switches { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: color-mix(in srgb, var(--panel-soft) 36%, var(--panel));
}
.check input { width: auto; }
.question-card { margin-bottom: 14px; }
.option-row { display: grid; grid-template-columns: 1fr auto auto; gap: 8px; align-items: center; margin-top: 8px; }
.answer-type-area {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.answer-note {
  color: var(--muted);
  font-size: 14px;
}
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chat-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 8px;
  align-items: center;
}
.chat-action {
  width: 40px;
  height: 40px;
  font-size: 18px;
}
.send-action {
  background: color-mix(in srgb, var(--primary) 12%, var(--panel));
  color: var(--primary);
  border-color: color-mix(in srgb, var(--primary) 25%, var(--line));
}
.small-action {
  width: 34px;
  height: 34px;
  font-size: 19px;
}
.profile-form { display: grid; gap: 18px; }
.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}
.theme-choice {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 50px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  font-weight: 800;
  text-align: left;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.theme-choice:hover, .theme-choice.active {
  transform: translateY(-1px);
  border-color: var(--swatch);
  box-shadow: 0 12px 24px color-mix(in srgb, var(--swatch) 18%, transparent);
  background: color-mix(in srgb, var(--swatch) 8%, var(--panel));
}
.theme-swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--swatch);
  box-shadow: inset 0 0 0 4px color-mix(in srgb, #fff 30%, transparent);
}
.exam-room {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 18px;
}
.session-panel { position: sticky; top: 84px; align-self: start; }
.timer { font-size: 34px; font-weight: 900; color: var(--primary); }
video {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #0f172a;
  border-radius: 8px;
}
.camera-feed {
  display: grid;
  gap: 8px;
  margin: 14px 0;
}
.camera-feed-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary) 12%, #0f172a), #0f172a);
  box-shadow: var(--shadow-soft);
}
.camera-feed-image.empty {
  display: block;
}
.camera-feed span {
  color: var(--muted);
  font-size: 13px;
}
.camera-finished {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--line));
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, var(--panel)), color-mix(in srgb, var(--primary) 10%, var(--panel)));
  color: var(--accent);
  font-size: 22px;
  font-weight: 900;
  box-shadow: var(--shadow-soft);
}
.chat-box { display: grid; gap: 8px; max-height: 260px; overflow-y: auto; padding-right: 4px; }
.monitor-chat {
  margin: 12px 0;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel-soft) 38%, var(--panel));
}
.chat-line {
  display: grid;
  gap: 4px;
  max-width: 88%;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--panel-soft);
  word-break: break-word;
}
.chat-line.mine {
  justify-self: end;
  background: color-mix(in srgb, var(--primary) 16%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--primary) 24%, var(--line));
}
.chat-line.theirs {
  justify-self: start;
  border: 1px solid var(--line);
}
.chat-line strong { font-size: 12px; color: var(--muted); }
.chat-line audio { width: 220px; max-width: 100%; }
.voice-button {
  background: color-mix(in srgb, var(--accent) 10%, var(--panel));
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 25%, var(--line));
}
.voice-button.recording {
  background: #fdecea;
  color: var(--danger);
  border-color: #f4b8b4;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--danger) 14%, transparent);
}
.warning-banner { border-left: 5px solid var(--warning); }
.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  padding: 12px 16px;
  border-radius: 8px;
  background: var(--text);
  color: var(--panel);
  box-shadow: var(--shadow);
  z-index: 20;
}
canvas { width: 100%; height: 180px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); }

@media (max-width: 860px) {
  .auth-shell, .hero, .exam-room, .grid.two, .grid.three, .form-grid { grid-template-columns: 1fr; }
  .auth-brand { padding: 32px; }
  .grid.metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .switches { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .grid.metrics { grid-template-columns: 1fr; }
  .auth-panel { padding: 24px; }
  .hero h1 { font-size: 24px; }
}