/* ── Reset & Base ────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-brand:      #ff5722;
  --color-brand-dark: #e64a19;
  --color-bg:         #f4f6f9;
  --color-surface:    #ffffff;
  --color-border:     #dde3ed;
  --color-text:       #1a2332;
  --color-muted:      #64748b;
  --color-error-bg:   #fff1f0;
  --color-error-bd:   #ffccc7;
  --color-error-tx:   #b91c1c;
  --color-success-bg: #f0fdf4;
  --color-success-bd: #bbf7d0;
  --color-success-tx: #15803d;
  --color-green:      #16a34a;
  --radius:           10px;
  --shadow:           0 2px 12px rgba(0,0,0,0.08);
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
}

/* ── Flash Messages ──────────────────────────────────────────── */
.flash-container {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 320px;
  max-width: 560px;
  width: 90%;
}

.flash {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
}

.flash--error {
  background: var(--color-error-bg);
  border-color: var(--color-error-bd);
  color: var(--color-error-tx);
}

.flash--success {
  background: var(--color-success-bg);
  border-color: var(--color-success-bd);
  color: var(--color-success-tx);
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-brand);
  color: #ffffff;
  border-color: var(--color-brand);
}

.btn--primary:hover {
  background: var(--color-brand-dark);
  border-color: var(--color-brand-dark);
}

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

.btn--ghost:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.btn--full {
  width: 100%;
}

.btn--sm {
  height: 34px;
  padding: 0 14px;
  font-size: 13px;
}

/* ── Login Page ──────────────────────────────────────────────── */
.page-center {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px 36px;
  width: 100%;
  max-width: 420px;
  text-align: center;
}

.card__logo {
  margin-bottom: 16px;
}

.card__title {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}

.card__subtitle {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 0;
}

.card__divider {
  height: 1px;
  background: var(--color-border);
  margin: 24px 0;
}

.card__info {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 20px;
  line-height: 1.6;
}

.card__hint {
  margin-top: 20px;
  font-size: 12px;
  color: var(--color-muted);
  line-height: 1.6;
}

.card__hint code {
  background: #f1f5f9;
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 11px;
  word-break: break-all;
}

/* ── Dashboard Layout ────────────────────────────────────────── */
.layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 58px;
  padding: 0 24px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar__name {
  font-size: 16px;
  font-weight: 700;
}

.topbar__right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar__user {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-muted);
}

.main-content {
  flex: 1;
  padding: 32px 24px;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
}

/* ── Status Card ─────────────────────────────────────────────── */
.status-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.status-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-card__icon--green {
  background: var(--color-success-bg);
  color: var(--color-green);
}

.status-card__title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}

.status-card__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--color-muted);
}

.placeholder-text {
  font-size: 14px;
  color: var(--color-muted);
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 480px) {
  .card {
    padding: 28px 20px;
  }

  .topbar {
    padding: 0 14px;
  }

  .main-content {
    padding: 20px 14px;
  }
}