/* SHOURAI Design System — Dark Theme */
:root {
  --color-surface-base:    #ffffff;
  --color-surface-raised:  #f8f8fb;
  --color-surface-strong:  #f1f1f6;
  --color-text-primary:    #1a1a2e;
  --color-text-muted:      rgba(26,26,46,0.5);
  --color-text-accent:     #6366f1;
  --color-text-purple:     #c084fc;
  --color-border-strong:   rgba(26,26,46,0.1);
  --color-border-muted:    rgba(26,26,46,0.05);
  --shadow-1: rgba(0,0,0,0.08) 0px 4px 24px 0px;
  --shadow-2: rgba(99,102,241,0.35) 0px 0px 20px 0px;
  --shadow-3: rgba(99,102,241,0.35) 0px 4px 20px 0px;
  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;
  --radius-pill: 50px;
  --duration-fast:   200ms;
  --duration-normal: 250ms;
}

* { box-sizing: border-box; }

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  margin: 0;
  background: var(--color-surface-base);
  color: var(--color-text-primary);
}

/* ── Topbar ── */
.ts-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-surface-strong);
  border-bottom: 1px solid var(--color-border-strong);
  padding: 12px 24px;
}

.ts-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  color: var(--color-text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.ts-brand-logo {
  height: 24px;
  width: auto;
}
.ts-brand span {
  color: var(--color-text-accent);
}

.ts-topbar nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.ts-topbar nav span {
  font-size: 13px;
  color: var(--color-text-muted);
  padding: 6px 10px;
}
.ts-topbar nav a {
  font-size: 13px;
  color: var(--color-text-primary);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  transition: background var(--duration-fast), border-color var(--duration-fast);
}
.ts-topbar nav a:hover {
  background: var(--color-surface-raised);
  border-color: rgba(255,255,255,0.15);
}
.ts-topbar nav a:focus-visible {
  outline: 2px solid var(--color-text-accent);
  outline-offset: 2px;
}

/* ── Main layout ── */
.ts-main {
  max-width: 85vw;
  margin: 32px auto;
  padding: 0 20px;
}

/* ── Card ── */
.card {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-1);
  margin-bottom: 16px;
}

/* ── Table ── */
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border-strong);
}
td {
  padding: 12px 12px;
  border-bottom: 1px solid var(--color-border-muted);
  font-size: 14px;
}
tr:hover td { background: rgba(255,255,255,0.02); }
td a {
  color: var(--color-text-primary);
  text-decoration: none;
}
td a:hover { color: var(--color-text-accent); }

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.badge-open       { background: rgba(99,102,241,0.15); color: #818cf8; border: 1px solid rgba(99,102,241,0.3); }
.badge-in_progress{ background: rgba(192,132,252,0.12); color: #c084fc; border: 1px solid rgba(192,132,252,0.3); }
.badge-waiting    { background: rgba(240,240,255,0.06); color: #a0a0b8; border: 1px solid rgba(255,255,255,0.1); }
.badge-closed     { background: rgba(52,211,153,0.1); color: #34d399; border: 1px solid rgba(52,211,153,0.25); }
.badge-low        { background: rgba(240,240,255,0.06); color: #a0a0b8; border: 1px solid rgba(255,255,255,0.1); }
.badge-normal     { background: rgba(99,102,241,0.15); color: #818cf8; border: 1px solid rgba(99,102,241,0.3); }
.badge-high       { background: rgba(251,146,60,0.12); color: #fb923c; border: 1px solid rgba(251,146,60,0.3); }
.badge-urgent     { background: rgba(248,113,113,0.12); color: #f87171; border: 1px solid rgba(248,113,113,0.3); }

/* ── Forms ── */
label {
  display: block;
  margin: 16px 0 6px;
  font-weight: 600;
  font-size: 13px;
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
}
input, select, textarea {
  width: 100%;
  padding: 9px 12px;
  background: var(--color-surface-strong);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: 14px;
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  appearance: none;
}
input::placeholder, textarea::placeholder { color: var(--color-text-muted); }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-text-accent);
  box-shadow: var(--shadow-2);
}

button, .btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding: 10px 20px;
  background: var(--color-text-accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  transition: opacity var(--duration-fast), box-shadow var(--duration-fast);
}
button:hover, .btn:hover {
  opacity: 0.9;
  box-shadow: var(--shadow-3);
}
button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--color-text-accent);
  outline-offset: 2px;
}
button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Alerts ── */
.error {
  color: #f87171;
  background: rgba(248,113,113,0.08);
  border: 1px solid rgba(248,113,113,0.25);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 14px;
}
.success {
  color: #34d399;
  background: rgba(52,211,153,0.08);
  border: 1px solid rgba(52,211,153,0.25);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  font-size: 14px;
}

/* ── Tabs ── */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--color-border-strong);
  padding-bottom: 0;
}
.tabs a {
  padding: 8px 16px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1px solid transparent;
  border-bottom: none;
  margin-bottom: -1px;
  transition: color var(--duration-fast);
}
.tabs a:hover { color: var(--color-text-primary); }
.tabs a.active {
  background: var(--color-surface-raised);
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
}
.tabs a:focus-visible {
  outline: 2px solid var(--color-text-accent);
  outline-offset: 2px;
}

/* ── Messages ── */
.message {
  border-left: 2px solid var(--color-border-strong);
  padding: 12px 16px;
  margin-bottom: 10px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-surface-strong);
  font-size: 14px;
}
.message.staff {
  border-left-color: var(--color-text-accent);
  background: rgba(99,102,241,0.05);
}
.message .meta {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
  letter-spacing: 0.03em;
}

/* ── Page heading ── */
h1 { font-size: 20px; font-weight: 700; margin: 0 0 20px; letter-spacing: -0.02em; }
h2 { font-size: 16px; font-weight: 600; margin: 0 0 16px; }