:root {
  --bg-0: #f7f3ff;
  --bg-1: #efe7ff;
  --bg-2: #ffffff;
  --ink: #1f1633;
  --muted: #6b6280;
  --line: #e4daf8;
  --purple-50: #f5f0ff;
  --purple-100: #ebe1ff;
  --purple-200: #d5c4ff;
  --purple-400: #8b5cf6;
  --purple-500: #7c3aed;
  --purple-600: #6d28d9;
  --purple-700: #5b21b6;
  --danger: #c0265e;
  --danger-bg: #fff1f5;
  --shadow: 0 24px 60px rgba(91, 33, 182, 0.12);
  --radius: 14px;
  --font-display: "Outfit", "Plus Jakarta Sans", sans-serif;
  --font-body: "Plus Jakarta Sans", "Outfit", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg-0);
  -webkit-font-smoothing: antialiased;
}

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

button,
input {
  font: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.hidden {
  display: none !important;
}

/* ===== Auth / Login ===== */
.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(900px 420px at 15% 10%, rgba(139, 92, 246, 0.22), transparent 60%),
    radial-gradient(700px 380px at 90% 90%, rgba(109, 40, 217, 0.16), transparent 55%),
    linear-gradient(160deg, #fbf8ff 0%, #f0e9ff 45%, #efe6ff 100%);
}

.auth-shell {
  width: min(100%, 440px);
  animation: rise 0.55s ease both;
}

.auth-card {
  background: var(--bg-2);
  border: 1px solid rgba(124, 58, 237, 0.1);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 36px 32px 28px;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.55rem;
  letter-spacing: 0.04em;
  color: var(--purple-700);
}

.brand-mark {
  display: grid;
  place-items: center;
  filter: drop-shadow(0 8px 16px rgba(109, 40, 217, 0.28));
}

.auth-header {
  text-align: center;
  margin-bottom: 26px;
}

.auth-header h1 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--purple-500);
  letter-spacing: -0.02em;
}

.auth-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.auth-form {
  display: grid;
  gap: 14px;
}

.field {
  position: relative;
}

.field input {
  width: 100%;
  height: 48px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--purple-50);
  color: var(--ink);
  padding: 0 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.field-password input {
  padding-right: 46px;
}

.field input::placeholder {
  color: #9a90b0;
}

.field input:focus {
  border-color: var(--purple-400);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.15);
}

.icon-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #8a809e;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.icon-btn:hover {
  color: var(--purple-600);
  background: rgba(124, 58, 237, 0.08);
}

.auth-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 2px;
  font-size: 0.9rem;
  color: var(--muted);
}

.check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.check input {
  width: 16px;
  height: 16px;
  accent-color: var(--purple-600);
}

.link {
  color: var(--purple-600);
  font-weight: 600;
}

.link:hover {
  color: var(--purple-700);
  text-decoration: underline;
}

.form-error {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid rgba(192, 38, 94, 0.18);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.9rem;
}

.btn-primary {
  margin-top: 4px;
  height: 48px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--purple-500), var(--purple-700));
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: 0 12px 24px rgba(109, 40, 217, 0.28);
  transition: transform 0.15s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  filter: brightness(1.03);
  box-shadow: 0 16px 28px rgba(109, 40, 217, 0.34);
}

.btn-primary:disabled {
  opacity: 0.72;
  cursor: wait;
}

.btn-spinner {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  animation: spin 0.7s linear infinite;
}

.auth-footer {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.auth-footer p {
  margin: 0;
}

.demo-hint {
  margin-top: 10px !important;
  font-size: 0.78rem !important;
  color: #8d84a3;
}

.demo-hint code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--purple-100);
  color: var(--purple-700);
  padding: 1px 6px;
  border-radius: 6px;
}

/* ===== Dashboard ===== */
.dash-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px 1fr;
  background:
    linear-gradient(180deg, #fbf8ff 0%, #f4efff 100%);
}

.sidebar {
  background: #fff;
  border-right: 1px solid var(--line);
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--purple-700);
  padding: 0 8px;
}

.side-nav {
  display: grid;
  gap: 6px;
  flex: 1;
}

.side-nav a {
  padding: 11px 12px;
  border-radius: 10px;
  color: var(--muted);
  font-weight: 500;
}

.side-nav a:hover,
.side-nav a.active {
  background: var(--purple-50);
  color: var(--purple-700);
}

.btn-ghost {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--purple-700);
  border-radius: 10px;
  height: 42px;
  cursor: pointer;
  font-weight: 600;
}

.btn-ghost:hover {
  background: var(--purple-50);
}

.dash-main {
  padding: 28px 32px 40px;
  animation: rise 0.45s ease both;
}

.dash-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--purple-500);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.dash-top h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.8rem;
  letter-spacing: -0.02em;
}

.session-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
}

.session-chip .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #16a34a;
  box-shadow: 0 0 0 4px rgba(22, 163, 74, 0.15);
}

.dash-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.stat,
.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(91, 33, 182, 0.06);
}

.stat {
  padding: 18px;
}

.stat p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.stat strong {
  font-family: var(--font-display);
  font-size: 1.55rem;
  color: var(--purple-700);
}

.panel {
  padding: 20px 22px;
}

.panel h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.session-meta {
  margin: 0;
  display: grid;
  gap: 10px;
}

.session-meta div {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
}

.session-meta dt {
  color: var(--muted);
}

.session-meta dd {
  margin: 0;
  font-weight: 600;
  word-break: break-all;
}

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

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

@media (max-width: 960px) {
  .dash-page {
    grid-template-columns: 1fr;
  }

  .sidebar {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    overflow-x: auto;
  }

  .side-nav {
    display: flex;
    flex: 1;
  }

  .side-nav a {
    white-space: nowrap;
  }

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

@media (max-width: 560px) {
  .auth-card {
    padding: 28px 20px 22px;
  }

  .auth-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .dash-main {
    padding: 20px 16px 28px;
  }

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

  .session-meta div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}