/* ==========================================================
   LEARN TECH - AGENDA INTELIGENTE
   Usado em: calendario.html
   ========================================================== */


body {
  background: linear-gradient(#1b1033, #0a0d18);
  color: #ffffff;
  min-height: 100vh;
  display: flex;
}


/* ==========================================================
   HEADER / BARRA SUPERIOR
   ========================================================== */

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 36px;
}

/* LINKS CENTRAIS */
nav {
  display: flex;
  gap: 48px;
}

nav a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  transition: color 0.2s;
}

nav a:hover {
  color: #38bdf8;
  transform: scale(1.05);
}

/* ÍCONES À DIREITA */
.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-icon-btn {
  background: transparent;
  border: none;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-icon-btn svg {
  width: 30px;
  height: 30px;
  stroke: #ffffff;
}

.header-icon-btn svg:hover {
  transform: scale(1.05);
}


/* ==========================================================
   CONTEÚDO PRINCIPAL (AGENDA INTELIGENTE)
   ========================================================== */

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 36px 36px;
}

.agenda-title {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.agenda-demo-notice {
  width: 100%;
  max-width: 1280px;
  margin: 0 0 14px;
  padding: 12px 16px;
  border-left: 3px solid #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  color: #d8f3ff;
  font-size: 13px;
  line-height: 1.5;
}

/* GRADE / PAINEL DA TRILHA DE ATIVIDADES */
.timeline-viewport {
  width: 100%;
  max-width: 1280px;
  min-height: 480px;
  background-color: #101026;
  border-radius: 4px;
  position: relative;
  display: flex;
  align-items: center;
  padding: 0 40px;
  overflow-x: auto;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 160px 100%;
  scrollbar-color: #38bdf8 #17172c;
  scrollbar-width: thin;
}

.timeline-viewport::-webkit-scrollbar {
  height: 10px;
}

.timeline-viewport::-webkit-scrollbar-track {
  background: #17172c;
  border-radius: 999px;
}

.timeline-viewport::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, #268fe6, #38bdf8);
  border: 2px solid #17172c;
  border-radius: 999px;
}

.timeline-viewport::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(90deg, #38bdf8, #7dd3fc);
}

/* LINHA HORIZONTAL AZUL/CIANO CONTÍNUA */
.horizontal-track-line {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background-color: #268fe6;
  transform: translateY(-50%);
  z-index: 1;
}

/* CONTAINER DOS CARDS */
.cards-row {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 36px;
  width: 100%;
}

/* CARD DE ATIVIDADE */
.activity-card {
  background-color: #121829;
  border: 2px solid #298ed8;
  border-radius: 14px;
  padding: 18px 20px;
  min-width: 290px;
  max-width: 320px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.activity-card:hover,
.activity-card:focus-within {
  z-index: 3;
  transform: scale(1.04);
  border-color: #7dd3fc;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.65), 0 0 18px rgba(56, 189, 248, 0.2);
}

.demo-test-card {
  border-color: #38bdf8;
}

.demo-test-badge {
  align-self: flex-start;
  padding: 4px 8px;
  border: 1px solid rgba(56, 189, 248, 0.55);
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.12);
  color: #7dd3fc;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.6px;
}

.activity-card .card-title {
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #ffffff;
}

.activity-card .card-date {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #cbd5e1;
}

.activity-card .card-subject {
  color: #94a3b8;
  font-size: 11px;
  font-weight: 600;
}

.status-select-container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-select-container .status-label {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  color: #ffffff;
}

/* SELETOR ESTILIZADO DE STATUS */
.status-dropdown {
  flex: 1;
  background-color: #1d263b;
  border: 1px solid #334261;
  border-radius: 6px;
  padding: 5px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #94a3b8;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: default;
  flex: 1;
}

.priority-control {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: #cbd5e1;
  font-size: 10px;
  font-weight: 800;
}

.priority-control select {
  width: 100%;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

/* BADGES DE PRIORIDADE */
.priority-badge {
  background-color: #0d1424;
  border: 1px solid #1e293b;
  border-radius: 6px;
  padding: 6px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  cursor: pointer;
}

.priority-badge:disabled {
  opacity: 0.65;
  cursor: wait;
}

.priority-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.priority-arrow {
  margin-left: auto;
  font-size: 9px;
}

/* CORES DAS PRIORIDADES */
.priority-badge.alta {
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.4);
}

.priority-badge.alta .priority-dot {
  background-color: #ef4444;
  box-shadow: 0 0 6px rgba(239, 68, 68, 0.8);
}

.priority-badge.media {
  color: #eab308;
  border-color: rgba(234, 179, 8, 0.4);
}

.priority-badge.media .priority-dot {
  background-color: #eab308;
  box-shadow: 0 0 6px rgba(234, 179, 8, 0.8);
}

.priority-badge.baixa {
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.4);
}

.priority-badge.baixa .priority-dot {
  background-color: #22c55e;
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.8);
}

@media (max-width: 900px) {
  header {
    padding: 14px 20px;
  }

  nav {
    display: none;
  }

  .timeline-viewport {
    padding: 40px 20px;
  }

  .cards-row {
    flex-direction: column;
  }

  .horizontal-track-line {
    display: none;
  }

  .activity-card {
    max-width: 100%;
    width: 100%;
  }
}


/* ==========================================================
   INTEGRAÇÃO COM O BACK-END
   Muitas atividades: a linha azul acompanha a rolagem
   ========================================================== */

.horizontal-track-line {
  display: none;
}

.cards-row {
  width: max-content;
  min-width: 100%;
}

.cards-row::before {
  content: '';
  position: absolute;
  top: 50%;
  left: -40px;
  right: -40px;
  height: 2px;
  background-color: #268fe6;
  transform: translateY(-50%);
  z-index: -1;
}

.activity-card {
  flex: 0 0 290px;
}

/* Mensagem de agenda vazia */
.cards-row > p {
  width: 100%;
  text-align: center;
  color: #94a3b8;
  font-size: 13px;
}

@media (max-width: 900px) {
  .cards-row {
    width: 100%;
  }

  .cards-row::before {
    display: none;
  }

  .activity-card {
    flex: 0 0 auto;
  }
}

@media (max-width: 560px) {
  main {
    padding: 12px 16px 28px;
  }

  .agenda-title {
    font-size: 21px;
    margin-bottom: 18px;
  }

  .timeline-viewport {
    min-height: 0;
    padding: 22px 14px;
  }

  .cards-row {
    gap: 16px;
  }

  .activity-card {
    padding: 16px;
  }
}