/* ============================================================
   TUTOR STUDENT CERTIFICATES — Premium Dark Theme v1.1
   Arquivo: assets/css/certificates.css
   ============================================================ */

/* ── Reset de escopo ────────────────────────────────────────── */
.tsc-wrap *,
.tsc-wrap *::before,
.tsc-wrap *::after {
  box-sizing: border-box;
}

/* ── Variáveis globais ──────────────────────────────────────── */
.tsc-wrap {
  /* paleta */
  --tsc-accent:       #a78bfa;
  --tsc-accent-2:     #7c3aed;
  --tsc-accent-glow:  rgba(167, 139, 250, 0.40);
  --tsc-green:        #6ee7b7;
  --tsc-green-2:      #10b981;
  --tsc-green-dim:    rgba(110, 231, 183, 0.15);
  --tsc-green-border: rgba(110, 231, 183, 0.30);

  /* superfícies */
  --tsc-bg:           #0f172a;
  --tsc-card:         #00000042;
  --tsc-card-border:  rgba(255, 255, 255, 0.07);
  --tsc-card-hover:   #0d0d0d;

  /* texto */
  --tsc-text:         #e2e8f0;
  --tsc-text-muted:   #94a3b8;
  --tsc-text-dim:     #64748b;

  /* forma */
  --tsc-radius:       18px;
  --tsc-radius-sm:    10px;
  --tsc-radius-pill:  999px;

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  color: var(--tsc-text);
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 16px;
}

/* ── Título opcional ────────────────────────────────────────── */
.tsc-heading {
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 700;
  color: var(--tsc-text);
  text-align: center;
  margin: 0 0 32px;
  letter-spacing: -0.02em;
}

/* ============================================================
   GRID
   ============================================================ */
.tsc-grid {
  display: grid;
  gap: 24px;
}
.tsc-grid--1 { grid-template-columns: 1fr; }
.tsc-grid--2 { grid-template-columns: repeat(2, 1fr); }
.tsc-grid--3 { grid-template-columns: repeat(3, 1fr); }
.tsc-grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ============================================================
   CARD
   ============================================================ */
.tsc-card {
  background: var(--tsc-card);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--tsc-radius);
  padding: 28px 24px 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;

  /* animação de entrada */
  opacity: 0;
  transform: translateY(16px);
  animation: tsc-card-in 0.45s cubic-bezier(0.22, 1, 0.36, 1) forwards;

  transition:
    background 0.25s,
    border-color 0.25s,
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s;
}

/* staggered entrance */
.tsc-card:nth-child(1) { animation-delay: 0.05s; }
.tsc-card:nth-child(2) { animation-delay: 0.10s; }
.tsc-card:nth-child(3) { animation-delay: 0.15s; }
.tsc-card:nth-child(4) { animation-delay: 0.20s; }
.tsc-card:nth-child(5) { animation-delay: 0.25s; }
.tsc-card:nth-child(6) { animation-delay: 0.30s; }

@keyframes tsc-card-in {
  to { opacity: 1; transform: translateY(0); }
}

.tsc-card:hover {
  background: var(--tsc-card-hover);
  border-color: rgba(167, 139, 250, 0.28);
  transform: translateY(-5px);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(167, 139, 250, 0.18);
}

/* ── Ícone decorativo ───────────────────────────────────────── */
.tsc-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(167, 139, 250, 0.10);
  border: 1px solid rgba(167, 139, 250, 0.22);
  color: var(--tsc-accent);
  flex-shrink: 0;
  animation: tsc-float 4s ease-in-out infinite;
}

.tsc-card__icon svg {
  width: 28px;
  height: 28px;
}

@keyframes tsc-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-5px); }
}

/* ── Título do curso ────────────────────────────────────────── */
.tsc-card__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--tsc-text);
  line-height: 1.45;
  margin: 0;
  letter-spacing: -0.01em;
}

/* ── Data de conclusão ──────────────────────────────────────── */
.tsc-card__date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--tsc-text-muted);
  margin: 0;
}

.tsc-card__date .tsc-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  opacity: 0.7;
}

/* ── Badge de quantidade de certificados ────────────────────── */
.tsc-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--tsc-green-dim);
  border: 1px solid var(--tsc-green-border);
  border-radius: var(--tsc-radius-pill);
  padding: 6px 14px 6px 10px;
}

.tsc-badge__icon {
  width: 14px;
  height: 14px;
  color: var(--tsc-green);
  flex-shrink: 0;
}

.tsc-badge__count {
  font-size: 12px;
  font-weight: 700;
  color: var(--tsc-green);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* ── Área de ações ──────────────────────────────────────────── */
.tsc-card__actions {
  width: 100%;
  margin-top: 4px;
}

/* ── Botão principal ────────────────────────────────────────── */
.tsc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--tsc-radius-sm);
  border: none;
  cursor: pointer;
  letter-spacing: 0.01em;
  transition:
    background 0.22s,
    box-shadow 0.22s,
    transform 0.18s cubic-bezier(0.22, 1, 0.36, 1);
}

.tsc-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.tsc-btn--primary {
  background: linear-gradient(135deg, var(--tsc-accent-2) 0%, var(--tsc-accent) 100%);
  color: #fff;
  box-shadow: 0 2px 12px var(--tsc-accent-glow);
}

.tsc-btn--primary:hover {
  background: linear-gradient(135deg, #6d28d9 0%, #8b5cf6 100%);
  box-shadow: 0 4px 20px rgba(167, 139, 250, 0.55);
  transform: translateY(-2px);
  color: #fff;
}

.tsc-btn--primary:active {
  transform: translateY(0) scale(0.97);
}

.tsc-btn--disabled {
  background: rgba(255, 255, 255, 0.05);
  color: var(--tsc-text-dim);
  border: 1px solid var(--tsc-card-border);
  cursor: not-allowed;
  opacity: 0.6;
}

/* ============================================================
   ESTADO VAZIO
   ============================================================ */
.tsc-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 56px 24px;
  background: var(--tsc-card);
  border: 1px dashed rgba(255, 255, 255, 0.10);
  border-radius: var(--tsc-radius);
  text-align: center;
}

.tsc-empty__icon {
  width: 64px;
  height: 64px;
  color: var(--tsc-text-dim);
  margin-bottom: 4px;
}

.tsc-empty__icon svg {
  width: 100%;
  height: 100%;
}

.tsc-empty__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--tsc-text);
  margin: 0;
}

.tsc-empty__sub {
  font-size: 14px;
  color: var(--tsc-text-muted);
  margin: 0;
}

/* ============================================================
   MENSAGENS DE AVISO
   ============================================================ */
.tsc-message {
  padding: 14px 18px;
  border-radius: var(--tsc-radius-sm);
  font-size: 14px;
  font-weight: 500;
}

.tsc-message--warning {
  background: rgba(251, 191, 36, 0.10);
  border: 1px solid rgba(251, 191, 36, 0.28);
  color: #fcd34d;
}

/* ============================================================
   TOAST DE CÓPIA
   ============================================================ */
.tsc-toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: #1e293b;
  border: 1px solid rgba(110, 231, 183, 0.35);
  border-radius: var(--tsc-radius-sm);
  color: var(--tsc-green);
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5);
  z-index: 9999;
  animation: tsc-toast-in 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.tsc-toast.is-hiding {
  animation: tsc-toast-out 0.25s ease forwards;
}

@keyframes tsc-toast-in {
  from { opacity: 0; transform: translateY(12px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes tsc-toast-out {
  to   { opacity: 0; transform: translateY(8px) scale(0.95); }
}

/* ============================================================
   RESPONSIVIDADE
   ============================================================ */
@media (max-width: 1024px) {
  .tsc-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .tsc-grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .tsc-wrap { padding: 20px 12px; }

  .tsc-grid--2,
  .tsc-grid--3,
  .tsc-grid--4 { grid-template-columns: 1fr; }

  .tsc-card { padding: 22px 18px 18px; }

  .tsc-badge__code { max-width: 90px; }
}

/* ============================================================
   ACESSIBILIDADE
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .tsc-card,
  .tsc-card__icon,
  .tsc-btn,
  .tsc-toast { animation: none !important; transition: none !important; }
  .tsc-card { opacity: 1; transform: none; }
}

@media (prefers-contrast: high) {
  .tsc-wrap   { --tsc-card-border: rgba(255,255,255,0.3); }
  .tsc-card   { border-color: #fff; }
}

/* ============================================================
   IMPRESSÃO
   ============================================================ */
@media print {
  .tsc-card__actions,
  .tsc-badge__copy,
  .tsc-toast { display: none !important; }
  .tsc-card  { border: 1px solid #000; break-inside: avoid; }
}