:root {
  --color-bg: #f4f6fb;
  --color-surface: #ffffff;
  --color-border: #e2e6ee;
  --color-text: #1b2430;
  --color-text-muted: #64748b;
  --color-primary: #2557a7;
  --color-primary-hover: #1e4685;
  --color-primary-soft: #e8f0fc;
  --color-danger: #b3261e;
  --color-danger-soft: #fbe9e7;
  --color-success: #15803d;

  --status-aberto: #2557a7;
  --status-aberto-bg: #e8f0fc;
  --status-andamento: #b7791f;
  --status-andamento-bg: #fdf3e0;
  --status-terceiro: #7c3aed;
  --status-terceiro-bg: #f1e9fd;
  --status-resolvido: #15803d;
  --status-resolvido-bg: #e5f5eb;
  --status-fechado: #64748b;
  --status-fechado-bg: #eceff3;

  --priority-critica: #b3261e;
  --priority-alta: #c2680d;
  --priority-media: #2557a7;
  --priority-baixa: #4b5a6b;

  --shadow-card: 0 1px 2px rgba(20, 30, 50, 0.06), 0 4px 16px rgba(20, 30, 50, 0.06);
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #10151f;
    --color-surface: #1a212e;
    --color-border: #2b3446;
    --color-text: #e7ecf5;
    --color-text-muted: #93a0b4;
    --color-primary: #5b8fdb;
    --color-primary-hover: #79a4e6;
    --color-primary-soft: #1c2c47;

    --status-aberto: #7ba7e8;
    --status-aberto-bg: #1c2c47;
    --status-andamento: #e3ac52;
    --status-andamento-bg: #3a2f16;
    --status-terceiro: #b494f2;
    --status-terceiro-bg: #2b2044;
    --status-resolvido: #5fbf85;
    --status-resolvido-bg: #16301f;
    --status-fechado: #93a0b4;
    --status-fechado-bg: #232b3a;

    --priority-critica: #e2685f;
    --priority-alta: #e0a054;
    --priority-media: #7ba7e8;
    --priority-baixa: #93a0b4;

    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.35);
  }
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
}

a {
  color: var(--color-primary);
}

button {
  font-family: inherit;
}

.centered-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 36px 32px;
}

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

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}

.brand-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
}

.brand-sub {
  font-size: 12px;
  color: var(--color-text-muted);
}

.auth-card h1 {
  font-size: 20px;
  margin: 0 0 6px;
}

.auth-card p.lede {
  color: var(--color-text-muted);
  margin: 0 0 24px;
  font-size: 14px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

input[type="email"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease;
}

input[type="email"]:focus {
  border-color: var(--color-primary);
}

.btn-primary {
  width: 100%;
  padding: 11px 16px;
  margin-top: 18px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: default;
}

.btn-secondary {
  padding: 9px 14px;
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--color-primary);
}

.feedback {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  line-height: 1.5;
}

.feedback.info {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.feedback.error {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

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

.center-text {
  text-align: center;
}

/* Chamados (dashboard) */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 14px;
}

.topbar-user-info {
  text-align: right;
}

.topbar-user-name {
  font-size: 13.5px;
  font-weight: 600;
}

.topbar-user-empresa {
  font-size: 12px;
  color: var(--color-text-muted);
}

.page-content {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.page-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
  flex-wrap: wrap;
}

.page-header h1 {
  font-size: 22px;
  margin: 0;
}

.count-pill {
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 20px;
}

.tab-btn {
  padding: 10px 4px;
  margin-right: 20px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.tab-btn:hover {
  color: var(--color-text);
}

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.form-field {
  margin-bottom: 18px;
}

.form-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-field input[type="text"],
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}

.form-field input[type="text"]:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-primary);
}

.form-field textarea {
  resize: vertical;
  min-height: 120px;
}

.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 560px;
}

.chamado-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chamado-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.chamado-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card);
}

.chamado-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.chamado-codigo {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.chamado-titulo {
  font-size: 15px;
  font-weight: 600;
  margin: 2px 0 8px;
}

.chamado-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-priority {
  font-weight: 700;
}

.empty-state, .error-state {
  text-align: center;
  padding: 56px 20px;
  color: var(--color-text-muted);
}

.error-state {
  color: var(--color-danger);
}

/* Detail view */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-decoration: none;
  cursor: pointer;
  margin-bottom: 18px;
  background: none;
  border: none;
  padding: 0;
}

.back-link:hover {
  color: var(--color-primary);
}

.detail-header {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 24px;
}

.detail-title {
  font-size: 19px;
  font-weight: 700;
  margin: 6px 0 14px;
}

.detail-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
}

.detail-field-label {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  margin-bottom: 3px;
}

.detail-field-value {
  font-size: 13.5px;
  font-weight: 600;
}

.detail-description {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  font-size: 13.5px;
  color: var(--color-text);
  white-space: pre-wrap;
}

.timeline-heading {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 14px;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.timeline-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.timeline-item.autor-cliente {
  border-left: 3px solid var(--color-primary);
}

.timeline-item-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  gap: 10px;
}

.timeline-autor {
  font-size: 13px;
  font-weight: 700;
}

.timeline-tipo {
  font-size: 11px;
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.timeline-data {
  font-size: 12px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.timeline-texto {
  font-size: 13.5px;
  white-space: pre-wrap;
  color: var(--color-text);
}

.skeleton {
  background: linear-gradient(90deg, var(--color-border) 25%, var(--color-bg) 37%, var(--color-border) 63%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.4s ease infinite;
  border-radius: 8px;
}

@keyframes skeleton-loading {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

@media (max-width: 560px) {
  .topbar {
    padding: 12px 16px;
  }
  .page-content {
    padding: 20px 14px 48px;
  }
}