:root {
  --bg: #050505;
  --surface: #161616;
  --card-bg: #0c0c0c;
  --text-main: #f5f5f5;
  --text-muted: #a3a3a3;
  --border: #f5f5f5;
  --border-light: #3a3a3a;
  --text-inverse: #050505;
  --btn-hover: #d4d4d4;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  padding: 16px;
  line-height: 1.6;
}

.container {
  max-width: 660px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border);
}

header h1 {
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

header p {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

a { color: var(--text-main); }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 20px;
  margin-bottom: 20px;
}

.card h2 {
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-light);
}

.card h3 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin: 16px 0 8px 0;
}

.case-text {
  font-size: 0.9rem;
  color: var(--text-main);
  text-align: justify;
  margin-bottom: 12px;
}

.case-highlight {
  background-color: var(--surface);
  border-left: 3px solid var(--border);
  padding: 12px;
  font-size: 0.85rem;
  margin: 14px 0;
}

.muted { color: var(--text-muted); }
.small { font-size: 0.8rem; }

ul.plain { list-style: none; }
ul.plain li {
  font-size: 0.85rem;
  padding: 8px 0;
  border-bottom: 1px dotted var(--border-light);
}
ul.plain li:last-child { border-bottom: none; }
ul.plain li::before { content: "— "; }

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.field input[type="text"],
.field input[type="password"],
.field textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border-light);
  border-radius: 2px;
  font-size: 0.9rem;
  background: var(--bg);
  color: var(--text-main);
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--border);
}

.field textarea {
  resize: vertical;
  min-height: 320px;
  line-height: 1.6;
  font-family: Georgia, "Times New Roman", serif;
}

.char-count {
  text-align: right;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.timer {
  text-align: center;
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 10px;
  border: 2px solid var(--border);
  background: var(--surface);
  margin-bottom: 16px;
}

.timer.alerta {
  background: var(--text-main);
  color: var(--text-inverse);
}

.btn {
  display: block;
  width: 100%;
  padding: 14px;
  background-color: var(--text-main);
  color: var(--text-inverse);
  border: 1px solid var(--border);
  border-radius: 2px;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}

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

.btn:disabled {
  background-color: #2a2a2a;
  color: #7a7a7a;
  border-color: #3a3a3a;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--bg);
  color: var(--text-main);
}
.btn-secondary:hover { background: var(--surface); }

.score-box {
  text-align: center;
  padding: 20px;
  border: 2px solid var(--border);
  background: var(--surface);
  margin-bottom: 20px;
}

.score-number {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin: 6px 0;
}

.status-badge {
  display: inline-block;
  padding: 3px 10px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid var(--border);
}

.status-pendente { background: var(--card-bg); color: var(--text-main); }
.status-liberado { background: var(--text-main); color: var(--text-inverse); }

.feedback-item {
  border: 1px solid var(--border);
  padding: 14px;
  margin-bottom: 12px;
  background: var(--card-bg);
}

.feedback-item .pontos {
  float: right;
  font-weight: 700;
}

.feedback-title {
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.feedback-detail {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 6px;
  border-top: 1px dotted var(--border-light);
  padding-top: 6px;
}

table.envios {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

table.envios th,
table.envios td {
  border: 1px solid var(--border-light);
  padding: 8px;
  text-align: left;
  vertical-align: top;
}

table.envios th {
  background: var(--surface);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.5px;
}

.alert {
  padding: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.alert.erro {
  background: var(--text-main);
  color: var(--text-inverse);
  border-color: var(--text-main);
}

footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: justify;
  line-height: 1.4;
}

footer strong { color: var(--text-main); }

.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--text-inverse);
  border-top-color: transparent;
  border-radius: 50%;
  animation: girar 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}

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