/* ============================================================
   Sucesso Mentoria — Design System
   Desktop-first, responsivo, premium minimalista
   ============================================================ */

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

:root {
  /* Cores */
  --bg:           #0f1117;
  --bg-2:         #161921;
  --bg-3:         #1e2230;
  --border:       #2a2d3a;
  --border-light: #333748;

  --text-primary:   #f0f2f8;
  --text-secondary: #8892a4;
  --text-muted:     #555f73;

  --accent:         #5b6af0;
  --accent-hover:   #4a58e0;
  --accent-soft:    rgba(91,106,240,.15);

  --success:        #22c55e;
  --success-soft:   rgba(34,197,94,.12);
  --warning:        #f59e0b;
  --warning-soft:   rgba(245,158,11,.12);
  --danger:         #ef4444;
  --danger-soft:    rgba(239,68,68,.12);

  /* SLA */
  --sla-ok:         #22c55e;
  --sla-warning:    #f59e0b;
  --sla-critical:   #ef4444;
  --sla-overdue:    #dc2626;

  /* Tipografia */
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;

  /* Layout */
  --sidebar-w:    240px;
  --radius:       10px;
  --radius-sm:    6px;
  --shadow:       0 4px 24px rgba(0,0,0,.4);
  --shadow-sm:    0 1px 8px rgba(0,0,0,.3);
  --transition:   .15s ease;
}

html { font-size: 15px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
code { font-family: var(--font-mono); font-size: .85em; background: var(--bg-3); padding: .1em .4em; border-radius: 3px; color: var(--accent); }
pre.code-block { background: var(--bg-3); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1rem; font-family: var(--font-mono); font-size: .8rem; overflow-x: auto; color: var(--text-primary); white-space: pre-wrap; }

/* ── Layout Principal ──────────────────────────────────────── */
.app-layout { min-height: 100vh; }
.app-wrapper { display: flex; min-height: 100vh; }

/* ── SIDEBAR ───────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  transition: width var(--transition);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -.02em;
}
.brand-icon { color: var(--accent); font-size: 1.2rem; }
.brand-name { color: var(--text-primary); }

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: .25rem;
  border-radius: var(--radius-sm);
  display: flex;
  transition: color var(--transition);
}
.sidebar-toggle:hover { color: var(--text-primary); }

.sidebar-nav { padding: 1rem 0; flex: 1; }

.nav-section-label {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: .25rem 1.25rem .5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .55rem 1.25rem;
  border-radius: 0;
  color: var(--text-secondary);
  font-size: .88rem;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
  position: relative;
}
.nav-item:hover { background: var(--bg-3); color: var(--text-primary); }
.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 500;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
}
.nav-item.danger { color: var(--danger); }
.nav-item.danger:hover { background: var(--danger-soft); }
.nav-item.danger.active { background: var(--danger-soft); color: var(--danger); }
.nav-item.danger.active::before { background: var(--danger); }

.nav-icon { font-size: .9rem; width: 1.2rem; text-align: center; flex-shrink: 0; }
.nav-label { flex: 1; }
.nav-badge {
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: .7rem;
  font-weight: 600;
  padding: .1rem .45rem;
  border-radius: 99px;
  min-width: 1.4rem;
  text-align: center;
}
.nav-badge.danger { background: var(--danger-soft); border-color: var(--danger); color: var(--danger); }

.sidebar-footer {
  border-top: 1px solid var(--border);
  padding: .75rem 1rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}

.user-info { display: flex; align-items: center; gap: .6rem; flex: 1; min-width: 0; }
.user-avatar {
  width: 32px; height: 32px;
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 700; color: var(--accent);
  flex-shrink: 0;
}
.user-details { min-width: 0; }
.user-name { font-size: .82rem; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: .72rem; color: var(--text-muted); }
.btn-logout { color: var(--text-muted); transition: color var(--transition); display: flex; }
.btn-logout:hover { color: var(--danger); }

/* ── MAIN CONTENT ──────────────────────────────────────────── */
.main-content {
  flex: 1;
  min-width: 0;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: calc(100vw - var(--sidebar-w));
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}
.page-header-left { display: flex; flex-direction: column; gap: .25rem; }
.page-title { font-size: 1.5rem; font-weight: 700; letter-spacing: -.02em; }
.page-subtitle { font-size: .88rem; color: var(--text-secondary); }
.page-header-actions { display: flex; align-items: center; gap: .5rem; flex-shrink: 0; }

.btn-back {
  display: inline-flex; align-items: center; gap: .3rem;
  font-size: .8rem; color: var(--text-muted);
  transition: color var(--transition);
  margin-bottom: .25rem;
}
.btn-back:hover { color: var(--text-primary); }

/* ── CARDS ─────────────────────────────────────────────────── */
.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: .75rem;
}
.card-title { font-size: .95rem; font-weight: 600; }
.card-body { padding: 1.25rem; }

/* ── TOOLBAR ───────────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.toolbar-right { display: flex; align-items: center; gap: .75rem; margin-left: auto; }

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 500px;
}
.search-icon {
  position: absolute; left: .75rem;
  color: var(--text-muted); pointer-events: none;
}
.search-input {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .55rem .75rem .55rem 2.25rem;
  color: var(--text-primary);
  font-size: .88rem;
  transition: border-color var(--transition);
  font-family: var(--font);
}
.search-input:focus { outline: none; border-color: var(--accent); }
.search-input::placeholder { color: var(--text-muted); }
.search-clear {
  position: absolute; right: .6rem;
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; font-size: 1.1rem; line-height: 1;
}

/* ── TICKET LIST ───────────────────────────────────────────── */
.ticket-list { display: flex; flex-direction: column; gap: .35rem; }

.ticket-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .9rem 1.1rem;
  transition: border-color var(--transition), background var(--transition), transform .1s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.ticket-card:hover { border-color: var(--border-light); background: var(--bg-3); }
.ticket-card.keyboard-focus { border-color: var(--accent); outline: none; }
.ticket-card.sla-overdue { border-left: 3px solid var(--danger); }
.ticket-card.sla-critical { border-left: 3px solid var(--warning); }

.ticket-card-left { display: flex; flex-direction: column; gap: .2rem; min-width: 180px; }
.ticket-mentee { display: flex; align-items: center; gap: .5rem; }
.mentee-name { font-size: .88rem; font-weight: 500; }
.ticket-code { font-size: .72rem; font-family: var(--font-mono); color: var(--text-muted); }

.ticket-card-center { flex: 1; min-width: 0; }
.ticket-preview { font-size: .83rem; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.ticket-card-right {
  display: flex; flex-direction: column; align-items: flex-end;
  gap: .3rem; flex-shrink: 0;
}

.ticket-date { font-size: .72rem; color: var(--text-muted); }

/* ── SLA BADGES ────────────────────────────────────────────── */
.sla-badge {
  font-size: .72rem; font-weight: 600;
  padding: .2rem .6rem; border-radius: 99px;
}
.sla-ok     { background: var(--success-soft); color: var(--success); }
.sla-warning { background: var(--warning-soft); color: var(--warning); }
.sla-critical, .sla-overdue { background: var(--danger-soft); color: var(--danger); }
.sla-closed { background: var(--bg-3); color: var(--text-muted); }

/* ── STATUS BADGES ─────────────────────────────────────────── */
.status-badge {
  font-size: .72rem; font-weight: 600;
  padding: .2rem .6rem; border-radius: 99px;
  display: inline-flex; align-items: center; gap: .3rem;
}
.status-open     { background: var(--success-soft); color: var(--success); }
.status-progress { background: var(--accent-soft);  color: var(--accent); }
.status-waiting  { background: var(--warning-soft); color: var(--warning); }
.status-closed   { background: var(--bg-3);          color: var(--text-muted); }

/* ── ASSIGNED CHIP ─────────────────────────────────────────── */
.assigned-chip {
  font-size: .72rem; font-weight: 500;
  background: var(--bg-3); border: 1px solid var(--border);
  border-radius: 99px; padding: .15rem .55rem;
  color: var(--text-secondary);
}
.assigned-chip.unassigned { color: var(--text-muted); font-style: italic; }

/* ── BADGES ────────────────────────────────────────────────── */
.badge { font-size: .65rem; font-weight: 700; padding: .1rem .4rem; border-radius: 3px; text-transform: uppercase; }
.badge-mine { background: var(--accent-soft); color: var(--accent); }
.role-badge { font-size: .72rem; font-weight: 600; padding: .2rem .5rem; border-radius: 4px; }
.role-admin  { background: var(--accent-soft); color: var(--accent); }
.role-agent  { background: var(--bg-3); color: var(--text-secondary); border: 1px solid var(--border); }
.status-dot { font-size: .8rem; font-weight: 500; }
.status-dot.active  { color: var(--success); }
.status-dot.inactive { color: var(--text-muted); }
.count-badge { font-size: .75rem; font-weight: 600; background: var(--bg-3); border: 1px solid var(--border); border-radius: 99px; padding: .2rem .7rem; color: var(--text-secondary); }
.count-link { color: var(--accent); font-size: .82rem; }
.count-link:hover { text-decoration: underline; }

/* ── TICKET DETAIL ─────────────────────────────────────────── */
.ticket-detail-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 1.5rem;
  align-items: start;
}

.ticket-thread-wrap {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.ticket-detail-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.ticket-meta-row {
  display: flex; align-items: center; flex-wrap: wrap; gap: .6rem;
}
.meta-item { font-size: .75rem; color: var(--text-muted); display: flex; align-items: center; gap: .3rem; }

.mentee-info-row {
  display: flex; align-items: center; gap: .75rem;
}
.mentee-avatar-lg {
  width: 40px; height: 40px;
  background: var(--accent-soft); border: 1px solid var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem; font-weight: 700; color: var(--accent); flex-shrink: 0;
}
.mentee-name-lg { font-size: 1rem; font-weight: 600; }
.mentee-waid { font-size: .72rem; font-family: var(--font-mono); color: var(--text-muted); }

.ticket-actions-row {
  display: flex; align-items: center; flex-wrap: wrap; gap: .75rem;
}
.action-group { display: flex; align-items: center; gap: .4rem; }
.assigned-info { font-size: .82rem; color: var(--text-secondary); }

.message-thread {
  flex: 1;
  padding: 1.25rem;
  display: flex; flex-direction: column; gap: .9rem;
  max-height: 50vh;
  overflow-y: auto;
}

.message { display: flex; gap: .75rem; }
.message-agent { flex-direction: row-reverse; }
.msg-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--bg-3); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: .78rem; font-weight: 600; flex-shrink: 0;
  color: var(--text-secondary);
}
.message-agent .msg-avatar { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

.msg-bubble {
  max-width: 80%;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .7rem 1rem;
}
.message-agent .msg-bubble {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.msg-header { display: flex; align-items: center; gap: .5rem; margin-bottom: .3rem; }
.msg-sender { font-size: .75rem; font-weight: 600; }
.msg-time   { font-size: .7rem; color: var(--text-muted); margin-left: auto; }
.msg-body   { font-size: .88rem; line-height: 1.6; word-break: break-word; }

/* ── REPLY BOX ─────────────────────────────────────────────── */
.reply-box {
  border-top: 1px solid var(--border);
  padding: 1rem 1.25rem;
  display: flex; flex-direction: column; gap: .75rem;
}
.reply-templates { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }
.templates-label { font-size: .72rem; color: var(--text-muted); flex-shrink: 0; }
.template-btn {
  background: var(--bg-3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: .25rem .6rem;
  font-size: .75rem; color: var(--text-secondary);
  cursor: pointer; transition: all var(--transition); font-family: var(--font);
}
.template-btn:hover { border-color: var(--accent); color: var(--accent); }

.reply-input-wrap { position: relative; }
.reply-textarea {
  width: 100%;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .75rem;
  color: var(--text-primary);
  font-family: var(--font); font-size: .88rem;
  resize: vertical; min-height: 100px;
  transition: border-color var(--transition);
}
.reply-textarea:focus { outline: none; border-color: var(--accent); }

.reply-footer { display: flex; align-items: center; justify-content: space-between; margin-top: .5rem; }
.char-counter { font-size: .72rem; color: var(--text-muted); }
.reply-closed-notice { padding: 1rem 1.25rem; font-size: .85rem; color: var(--text-muted); border-top: 1px solid var(--border); }

/* ── TICKET SIDEBAR ────────────────────────────────────────── */
.ticket-sidebar {
  display: flex; flex-direction: column; gap: 1rem;
  position: sticky; top: 1rem;
}
.sidebar-section { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.sidebar-section-title { font-size: .78rem; font-weight: 600; padding: .75rem 1rem; border-bottom: 1px solid var(--border); color: var(--text-secondary); text-transform: uppercase; letter-spacing: .05em; }

.event-timeline { padding: .75rem; display: flex; flex-direction: column; gap: .4rem; max-height: 400px; overflow-y: auto; }
.event-item { display: flex; align-items: flex-start; gap: .5rem; font-size: .78rem; }
.event-icon { flex-shrink: 0; width: 1.2rem; text-align: center; }
.event-body { display: flex; flex-direction: column; gap: .1rem; }
.event-label { font-weight: 500; color: var(--text-secondary); }
.event-user  { color: var(--text-muted); }
.event-detail{ color: var(--text-muted); }
.event-time  { font-size: .7rem; color: var(--text-muted); }

/* ── FORMS ─────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-label { font-size: .8rem; font-weight: 500; color: var(--text-secondary); }
.form-input, .form-select {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .55rem .75rem;
  color: var(--text-primary);
  font-size: .88rem;
  font-family: var(--font);
  transition: border-color var(--transition);
  width: 100%;
}
.form-input:focus, .form-select:focus { outline: none; border-color: var(--accent); }
.form-input::placeholder { color: var(--text-muted); }
.form-select { appearance: none; cursor: pointer; }
.form-select-sm { padding: .35rem .55rem; font-size: .82rem; width: auto; }
.code-input { font-family: var(--font-mono); font-size: .82rem; }

.input-with-action { position: relative; display: flex; align-items: center; }
.input-with-action .form-input { padding-right: 2.5rem; }
.input-action { position: absolute; right: .5rem; }

.form-row { display: flex; gap: .75rem; align-items: flex-end; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 150px; }
.align-end { align-self: flex-end; }
.flex-1 { flex: 1; }

.form-actions { display: flex; justify-content: flex-end; }

/* ── BUTTONS ───────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .55rem 1rem; border-radius: var(--radius-sm);
  font-size: .85rem; font-weight: 500; cursor: pointer;
  border: 1px solid transparent; font-family: var(--font);
  transition: all var(--transition); white-space: nowrap;
  text-decoration: none; line-height: 1.4;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary  { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-3); color: var(--text-primary); border-color: var(--border); }
.btn-secondary:hover:not(:disabled) { border-color: var(--border-light); }
.btn-danger   { background: var(--danger-soft); color: var(--danger); border-color: var(--danger); }
.btn-danger:hover:not(:disabled) { background: var(--danger); color: #fff; }
.btn-ghost    { background: none; color: var(--text-secondary); }
.btn-ghost:hover:not(:disabled) { background: var(--bg-3); color: var(--text-primary); }
.btn-block    { width: 100%; justify-content: center; }
.btn-sm  { padding: .35rem .7rem; font-size: .8rem; }
.btn-xs  { padding: .2rem .5rem; font-size: .75rem; }
.btn-lg  { padding: .7rem 1.5rem; font-size: .95rem; }
.btn-icon { background: none; border: none; padding: .3rem; cursor: pointer; border-radius: var(--radius-sm); color: var(--text-muted); display: flex; align-items: center; }
.btn-icon:hover { color: var(--text-primary); }

/* ── ALERTS ────────────────────────────────────────────────── */
.alert {
  padding: .75rem 1rem; border-radius: var(--radius-sm);
  font-size: .85rem; display: flex; align-items: center; gap: .5rem;
  transition: opacity .4s;
}
.alert-success { background: var(--success-soft); border: 1px solid var(--success); color: var(--success); }
.alert-error   { background: var(--danger-soft);  border: 1px solid var(--danger);  color: var(--danger); }
.alert-warn    { background: var(--warning-soft); border: 1px solid var(--warning); color: var(--warning); }

/* ── TABLES ────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.data-table th { padding: .6rem 1rem; text-align: left; font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); border-bottom: 1px solid var(--border); }
.data-table td { padding: .75rem 1rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--bg-3); }
.action-btns { display: flex; gap: .3rem; flex-wrap: wrap; }

/* ── MODALS ────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 1rem;
}
.modal-overlay[hidden] { display: none; }
.modal {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); width: 100%; max-width: 480px;
  box-shadow: var(--shadow);
}
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.25rem; border-bottom: 1px solid var(--border); }
.modal-header h3 { font-size: .95rem; font-weight: 600; }
.modal-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.25rem; line-height: 1; padding: .2rem; }
.modal-body { padding: 1.25rem; }
.modal-footer { display: flex; justify-content: flex-end; gap: .5rem; padding: 1rem 1.25rem; border-top: 1px solid var(--border); }

/* ── PAGINATION ────────────────────────────────────────────── */
.pagination { display: flex; align-items: center; justify-content: center; gap: 1rem; padding: 1rem; }
.page-btn { font-size: .85rem; color: var(--accent); padding: .35rem .75rem; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-2); }
.page-btn:hover { border-color: var(--accent); }
.page-info { font-size: .82rem; color: var(--text-muted); }

/* ── TOASTS ────────────────────────────────────────────────── */
.toast-container { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 2000; display: flex; flex-direction: column; gap: .5rem; pointer-events: none; }
.toast {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: .75rem 1.1rem;
  font-size: .85rem; max-width: 320px;
  box-shadow: var(--shadow);
  display: flex; align-items: center; gap: .5rem;
  animation: slideUp .2s ease;
  pointer-events: all;
}
.toast-success { border-color: var(--success); }
.toast-error   { border-color: var(--danger); }
.toast-success .toast-icon { color: var(--success); }
.toast-error   .toast-icon { color: var(--danger); }
@keyframes slideUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ── LOGIN PAGE ────────────────────────────────────────────── */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-wrapper { width: 100%; max-width: 420px; padding: 1.5rem; }
.login-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 2.5rem 2rem; box-shadow: var(--shadow); }
.login-brand { text-align: center; margin-bottom: 2rem; }
.brand-icon-lg { font-size: 2.5rem; color: var(--accent); display: block; margin-bottom: .5rem; }
.login-title { font-size: 1.6rem; font-weight: 800; letter-spacing: -.03em; }
.login-subtitle { font-size: .85rem; color: var(--text-muted); margin-top: .3rem; }
.login-form { display: flex; flex-direction: column; gap: 1.1rem; }
.login-footer { text-align: center; font-size: .75rem; color: var(--text-muted); margin-top: 2rem; }

.btn-spinner .spin { animation: rotate 1s linear infinite; }
@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* ── SETTINGS GRID ─────────────────────────────────────────── */
.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.info-item { display: flex; flex-direction: column; gap: .2rem; }
.info-label { font-size: .72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; }
.info-value { font-size: .9rem; font-weight: 500; }

/* ── EMPTY STATES ──────────────────────────────────────────── */
.empty-state { text-align: center; padding: 4rem 2rem; }
.empty-icon  { font-size: 3rem; margin-bottom: 1rem; }
.empty-title { font-size: 1rem; font-weight: 600; margin-bottom: .4rem; }
.empty-sub   { font-size: .85rem; color: var(--text-muted); }
.empty-state-sm { text-align: center; padding: 2rem; font-size: .85rem; color: var(--text-muted); }

/* ── UTILITIES ─────────────────────────────────────────────── */
.mb-2 { margin-bottom: .5rem; }
.mb-3 { margin-bottom: .75rem; }
.mb-4 { margin-bottom: 1rem; }
.mt-2 { margin-top: .5rem; }
.mt-3 { margin-top: .75rem; }
.mt-4 { margin-top: 1rem; }
.text-muted  { color: var(--text-muted); }
.text-sm     { font-size: .82rem; }
.text-center { text-align: center; }
.code-text   { font-family: var(--font-mono); font-size: .78rem; }

/* ── AVATAR SM ─────────────────────────────────────────────── */
.avatar-sm {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--bg-3); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: .7rem; font-weight: 700; color: var(--text-secondary);
  flex-shrink: 0;
}

/* ── SCROLLBAR ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

/* ── RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .ticket-detail-layout { grid-template-columns: 1fr; }
  .ticket-sidebar { position: static; }
  .settings-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }
  .sidebar {
    position: fixed; left: -240px; width: 240px;
    transition: left var(--transition);
    z-index: 200;
  }
  .sidebar.open { left: 0; }
  .main-content { max-width: 100vw; padding: 1rem; }
  .ticket-card { flex-wrap: wrap; }
  .ticket-card-right { flex-direction: row; align-items: center; width: 100%; }
  .form-row { flex-direction: column; }
  .ticket-actions-row { flex-wrap: wrap; }
}