/* ============================================
   AAU Lịch Khai Giảng – Table Layout by Month
   ============================================ */
.aau-lkg { font-family: 'Inter', 'Montserrat', system-ui, sans-serif; color: #1a1a2e; }

/* Hero */
.aau-lkg__hero {
  background: linear-gradient(135deg, #0d1b3e 0%, #1a237e 50%, #283593 100%);
  padding: 56px 24px 48px;
  text-align: center;
}
.aau-lkg__title { color: #fff; font-size: 36px; font-weight: 800; margin: 0 0 12px; letter-spacing: -0.5px; }
.aau-lkg__subtitle { color: rgba(255,255,255,.75); font-size: 16px; margin: 0; font-weight: 400; }

/* Wrapper */
.aau-lkg__wrap { max-width: 1200px; margin: 0 auto; padding: 32px 20px 48px; }

/* ---- Table Header ---- */
.aau-lkg__thead {
  display: grid;
  grid-template-columns: 1fr 130px 100px 150px 160px;
  gap: 16px;
  padding: 14px 20px;
  border-bottom: 2px solid #1a3a5c;
  align-items: center;
}
.aau-lkg__th {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.8px;
  color: #1a3a5c;
  text-transform: uppercase;
}
.aau-lkg__th--date,
.aau-lkg__th--duration,
.aau-lkg__th--schedule { text-align: center; }

/* ---- Month Header ---- */
.aau-lkg__month-header {
  padding: 20px 20px 8px;
}
.aau-lkg__month-label {
  font-size: 17px;
  font-weight: 700;
  color: #c75b39;
  letter-spacing: 0.3px;
}

/* ---- Row ---- */
.aau-lkg__row {
  display: grid;
  grid-template-columns: 1fr 130px 100px 150px 160px;
  gap: 16px;
  padding: 24px 20px;
  border-bottom: 1px solid #eee;
  align-items: center;
  transition: background .15s;
}
.aau-lkg__row:hover { background: #fafbff; }

/* ---- Course Cell ---- */
.aau-lkg__cell--course {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.aau-lkg__img {
  width: 120px;
  min-width: 120px;
  height: 80px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}
.aau-lkg__img--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f0f0f5;
}
.aau-lkg__course-info { flex: 1; min-width: 0; }

/* Tags */
.aau-lkg__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 6px; }
.aau-lkg__tag {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
  border: 1px solid #1a3a5c;
  color: #1a3a5c;
  background: transparent;
  white-space: nowrap;
}
.aau-lkg__tag--mode {
  background: #f5f5f5;
  border-color: #ccc;
  color: #555;
}
.aau-lkg__tag--location {
  background: #e8f5e9;
  border-color: #66bb6a;
  color: #2e7d32;
}

/* Course name */
.aau-lkg__name {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 4px;
  line-height: 1.35;
  color: #1a1a2e;
}
.aau-lkg__name a { color: inherit; text-decoration: none; }
.aau-lkg__name a:hover { color: #1a237e; text-decoration: underline; }
.aau-lkg__desc {
  font-size: 13px;
  color: #666;
  margin: 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---- Date Cell ---- */
.aau-lkg__cell--date { text-align: center; }
.aau-lkg__date {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #1a1a2e;
}
.aau-lkg__date strong { font-size: 18px; }
.aau-lkg__countdown {
  display: inline-block;
  margin-top: 4px;
  font-size: 12px;
  font-weight: 600;
  color: #d84315;
}

/* ---- Duration Cell ---- */
.aau-lkg__cell--duration {
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: #333;
}

/* ---- Schedule Cell ---- */
.aau-lkg__cell--schedule { text-align: center; }
.aau-lkg__sched-days {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: #333;
}
.aau-lkg__sched-time {
  display: block;
  font-size: 12px;
  color: #777;
  margin-top: 2px;
}

/* ---- Actions ---- */
.aau-lkg__cell--actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: stretch;
}
.aau-lkg__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: all .2s ease;
  border: none;
  letter-spacing: 0.5px;
}
.aau-lkg__btn--brochure {
  background: #fff;
  color: #1565c0;
  border: 2px solid #1565c0;
  font-weight: 800;
  letter-spacing: 0.8px;
}
.aau-lkg__btn--brochure:hover:not(.aau-lkg__btn--disabled) {
  background: #1565c0;
  color: #fff;
  box-shadow: 0 4px 12px rgba(21,101,192,.3);
}
.aau-lkg__btn--disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}
.aau-lkg__btn--register {
  background: linear-gradient(135deg, #c9a84c, #b8943e);
  color: #fff;
  border: none;
}
.aau-lkg__btn--register:hover {
  background: linear-gradient(135deg, #b8943e, #a07e30);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(201,168,76,.35);
}

/* ---- Note ---- */
.aau-lkg__note {
  margin-top: 32px;
  padding: 16px 20px;
  background: #fdf6ec;
  border-left: 4px solid #c9a84c;
  border-radius: 6px;
  font-size: 14px;
  color: #5a4a2e;
  line-height: 1.6;
}

/* ==============================
   Mobile Card (hidden on desktop)
   ============================== */
.aau-lkg__card { display: none; }

@media (max-width: 900px) {
  .aau-lkg__row, .aau-lkg__thead { display: none; }
  .aau-lkg__card {
    display: block;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,.08);
    margin-bottom: 20px;
  }
  .aau-lkg__card-img { width: 100%; height: 180px; object-fit: cover; }
  .aau-lkg__card-body { padding: 16px 18px 20px; }
  .aau-lkg__card-title { font-size: 16px; font-weight: 700; margin: 6px 0; color: #1a1a2e; }
  .aau-lkg__card-desc { font-size: 13px; color: #666; margin: 0 0 12px; line-height: 1.4; }
  .aau-lkg__card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    font-size: 13px;
    color: #555;
    margin-bottom: 14px;
  }
  .aau-lkg__card-actions {
    display: flex;
    gap: 10px;
  }
  .aau-lkg__card-actions .aau-lkg__btn {
    flex: 1;
    padding: 10px;
  }
  .aau-lkg__month-header { padding: 16px 0 6px; }
}

/* ==============================
   Modal
   ============================== */
.aau-lkg__modal {
  position: fixed; inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
}
.aau-lkg__modal.is-open { display: flex; }
.aau-lkg__modal-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.55);
}
.aau-lkg__modal-content {
  position: relative;
  background: #fff;
  border-radius: 16px;
  padding: 36px 32px;
  max-width: 500px;
  width: 92%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
}
.aau-lkg__modal-close {
  position: absolute; top: 12px; right: 16px;
  background: none; border: none;
  font-size: 28px; cursor: pointer;
  color: #999; line-height: 1;
}
.aau-lkg__modal-title {
  font-size: 22px; font-weight: 700;
  margin: 0 0 6px; color: #1a237e;
}
.aau-lkg__modal-course {
  font-size: 14px; color: #666;
  margin: 0 0 20px; font-weight: 500;
}
.aau-lkg__input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 12px;
  transition: border .2s;
}
.aau-lkg__input:focus { border-color: #1a237e; outline: none; }
.aau-lkg__textarea { resize: vertical; }
.aau-lkg__btn-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #c9a84c, #b8943e);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s;
}
.aau-lkg__btn-submit:hover {
  background: linear-gradient(135deg, #b8943e, #a07e30);
}
.aau-lkg__hotline {
  text-align: center;
  margin-top: 16px;
  font-size: 14px;
  color: #555;
}
.aau-lkg__hotline a { color: #1a237e; font-weight: 700; }

/* Success & Error messages */
.aau-lkg__success {
  background: #e8f5e9;
  border: 1px solid #66bb6a;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
  text-align: center;
  color: #2e7d32;
}
.aau-lkg__errors {
  background: #fce4ec;
  border: 1px solid #ef5350;
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
  color: #c62828;
  font-size: 14px;
}
.aau-lkg__errors ul { margin: 4px 0 0; padding-left: 20px; }