/* ===== Variabile de culoare (temă întunecată, ca în exemplu) ===== */
:root {
  --fundal: #11151f;
  --panou: #181e2b;
  --card: #1f2638;
  --card-sus: #252e45;
  --bordura: #2f3a55;
  --text: #e8ecf4;
  --text-slab: #9aa5bd;
  --accent: #5b8def;
  --accent-inchis: #3f6fd1;
  --verde-fundal: #1f3f33;
  --verde-text: #8fe0b3;
  --rosu-fundal: #3a2230;
  --rosu-bordura: #6b3449;
  --rosu-text: #f2a7b8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  background-color: var(--fundal);
  color: var(--text);
  line-height: 1.45;
}

/* ===== Header și footer ===== */
.header {
  text-align: center;
  padding: 32px 16px 26px;
  background: linear-gradient(135deg, #1b2440, #24345f);
  border-bottom: 1px solid var(--bordura);
}

.header h1 { margin: 0 0 6px; font-size: 1.8rem; }
.header p  { margin: 0; color: var(--text-slab); }

.footer {
  text-align: center;
  padding: 16px 16px 40px;
}

.footer a { color: var(--accent); }

/* ===== Structura paginii ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

.sus {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 28px;
}

.panou {
  flex: 1 1 340px;
  background-color: var(--panou);
  border: 1px solid var(--bordura);
  border-radius: 14px;
  padding: 18px 20px;
}

h2 {
  margin: 0 0 12px;
  font-size: 1.15rem;
}

/* ===== Formular ===== */
label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-slab);
  margin: 10px 0 4px;
}

input[type="text"],
input[type="number"],
select {
  width: 100%;
  padding: 9px 12px;
  font-size: 0.95rem;
  color: var(--text);
  background-color: var(--card);
  border: 1px solid var(--bordura);
  border-radius: 8px;
}

input:focus,
select:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}

.doua {
  display: flex;
  gap: 12px;
}

.doua > div { flex: 1; }

.btn-principal {
  width: 100%;
  margin-top: 16px;
  padding: 10px;
  font-size: 1rem;
  font-weight: bold;
  color: #ffffff;
  background-color: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

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

.mesaj {
  min-height: 1.3em;
  margin: 10px 0 0;
  font-size: 0.9rem;
}

.mesaj.succes { color: var(--verde-text); }
.mesaj.eroare { color: var(--rosu-text); }

/* ===== Controale Flexbox ===== */
.eticheta {
  margin: 12px 0 6px;
  font-family: Consolas, monospace;
  font-size: 0.9rem;
}

.eticheta span {
  font-family: inherit;
  color: var(--text-slab);
}

.grup {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.grup button {
  padding: 6px 10px;
  font-family: Consolas, monospace;
  font-size: 0.82rem;
  color: var(--text);
  background-color: var(--card);
  border: 1px solid var(--bordura);
  border-radius: 6px;
  cursor: pointer;
}

.grup button:hover { border-color: var(--accent); }

.grup button.activ {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.cod {
  margin: 14px 0 0;
  padding: 10px 14px;
  font-size: 0.85rem;
  color: #c9d6f0;
  background-color: #0c1018;
  border: 1px solid var(--bordura);
  border-radius: 8px;
  overflow-x: auto;
}

/* ===== Lista de studenți ===== */
.titlu-lista {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.titlu-lista h2 { margin: 0; }

.numar {
  margin: 0;
  padding: 6px 14px;
  background-color: var(--panou);
  border: 1px solid var(--bordura);
  border-radius: 999px;
}

/* Containerul flex – proprietățile sunt schimbate din JavaScript */
.carduri {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: stretch;
  gap: 16px;
  min-height: 360px;
  padding: 16px;
  border: 1px dashed var(--bordura);
  border-radius: 14px;
}

/* Cu nowrap, containerul se derulează orizontal */
.carduri.fara-wrap { overflow-x: auto; }

/* ===== Cardul unui student ===== */
.card {
  flex: 0 0 260px;
  display: flex;
  flex-direction: column;
  padding: 16px;
  background: linear-gradient(160deg, var(--card-sus), var(--card));
  border: 1px solid var(--bordura);
  border-radius: 14px;
}

.card-antet {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.avatar {
  flex: 0 0 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  background-color: #2e3a5c;
  border-radius: 12px;
}

.nume {
  margin: 0;
  font-size: 1.05rem;
}

.grupa {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-slab);
}

.detalii {
  margin: 0 0 14px;
  flex-grow: 1;
}

.rand {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  font-size: 0.9rem;
}

.rand dt { color: var(--text-slab); }

.rand dd {
  margin: 0;
  text-align: right;
}

.varsta { font-weight: bold; }

.statut {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.8rem;
  color: var(--verde-text);
  background-color: var(--verde-fundal);
  border-radius: 999px;
}

.btn-sterge {
  width: 100%;
  padding: 7px;
  font-size: 0.9rem;
  color: var(--rosu-text);
  background-color: var(--rosu-fundal);
  border: 1px solid var(--rosu-bordura);
  border-radius: 8px;
  cursor: pointer;
}

.btn-sterge:hover { background-color: #4d2a3d; }

.lista-goala {
  margin: auto;
  padding: 24px;
  text-align: center;
  color: var(--text-slab);
}

/* ===== Ecrane mici ===== */
@media (max-width: 480px) {
  .card { flex-basis: 100%; }
  .carduri.fara-wrap .card { flex-basis: 240px; }
}