/* ════════════════════════════════════════════════
   DEVICE MANAGER  
/* Add-device row: dropdown + button */
.device-add-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 10px;
}

@media (max-width: 560px) {
  .device-add-row {
    flex-direction: column;
    align-items: stretch;
  }
}

.device-add-row select {
  flex: 1;
  direction: rtl;
  text-align: right;
}

.btn-add-device {
  flex-shrink: 0;
  padding: 9px 14px;
  background: var(--submain);
  border: 1px solid var(--submain);
  border-radius: 9px;
  color: var(--main);
  font-family: 'Vazirmatn', sans-serif;
  font-size: .82rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
  touch-action: manipulation;
  min-height: 44px;
}

@media (max-width: 560px) {
  .btn-add-device {
    width: 100%;
  }
}

.btn-add-device:hover {
  background: var(--text);
  color: var(--main);
  transform: translateY(-1px);
}

.btn-add-device:active {
  transform: translateY(0);
}

/* Device list table */
.device-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 10px;
}

.device-row {
  display: grid;
  grid-template-columns: 1fr 70px 60px 54px auto;
  gap: 6px;
  align-items: center;
  background: var(--lightblue);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  animation: rowIn .25s ease;
}

@keyframes rowIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* on very small screens stack vertically */
@media(max-width:440px) {
  .device-row {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }

  .device-row .dev-name {
    grid-column: 1/-1;
  }

  .device-row .dev-remove {
    grid-column: 2;
    justify-self: end;
  }
}

@media (max-width: 560px) {
  .device-header {
    display: none;
  }
}

.device-row input {
  padding: 6px 8px;
  font-size: .8rem;
  direction: ltr;
  text-align: center;
}

.dev-name {
  font-size: .8rem;
  color: var(--text);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
  direction: rtl;
}

.dev-icon {
  font-size: 1rem;
  flex-shrink: 0;
}

.dev-col-label {
  font-size: .65rem;
  color: var(--dim);
  text-align: center;
  margin-bottom: 2px;
}

.dev-field {
  display: flex;
  flex-direction: column;
}

.dev-kwh {
  font-size: .75rem;
  color: var(--submain);
  font-weight: 700;
  text-align: center;
  min-width: 48px;
  background: rgba(21, 125, 164, .08);
  border: 1px solid rgba(21, 125, 164, .2);
  border-radius: 7px;
  padding: 5px 4px;
  line-height: 1.2;
}

.dev-kwh small {
  display: block;
  font-size: .6rem;
  color: var(--dim);
  font-weight: 400;
}

.btn-remove {
  background: rgba(244, 67, 54, .12);
  border: 1px solid rgba(244, 67, 54, .25);
  color: #EF9A9A;
  border-radius: 7px;
  padding: 5px 8px;
  cursor: pointer;
  font-size: .75rem;
  font-family: 'Vazirmatn', sans-serif;
  transition: all .2s;
  line-height: 1;
}

.btn-remove:hover {
  background: rgba(244, 67, 54, .25);
  color: #fff;
}

/* column header row */
.device-header {
  display: grid;
  grid-template-columns: 1fr 70px 60px 54px auto;
  gap: 6px;
  padding: 0 10px 4px;
}

.device-header span {
  font-size: .65rem;
  color: var(--dim);
  text-align: center;
  font-weight: 600;
}

.device-header span:first-child {
  text-align: right;
}

/* Total summary bar */
.device-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
  background: rgba(21, 125, 164, .08);
  border: 1px solid rgba(21, 125, 164, .24);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 10px;
}

@media (max-width: 480px) {
  .device-total {
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 12px;
  }
}

.device-total-label {
  font-size: .78rem;
  color: var(--dim);
}

.device-total-value {
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--submain);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.device-total-value small {
  font-size: .7rem;
  font-weight: 500;
  color: var(--dim);
}

/* empty state */
.device-empty {
  text-align: center;
  padding: 18px 10px;
  font-size: .78rem;
  color: var(--dim);
  border: 1px dashed rgba(255, 255, 255, .1);
  border-radius: 10px;
  margin-bottom: 10px;
}

/* Calc button */
.btn {
  width: 100%;
  padding: 13px;
  margin-top: 8px;
  background: var(--submain);
  border: none;
  border-radius: 12px;
  color: var(--main);
  font-family: 'Vazirmatn', sans-serif;
  font-size: .95rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s, background .2s;
  touch-action: manipulation;
  min-height: 44px;
}

@media (max-width: 480px) {
  .btn {
    padding: 12px;
    font-size: .9rem;
  }
}

.btn:hover {
  background: var(--text);
  color: var(--main);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(21, 125, 164, .3);
}

.btn:active {
  transform: translateY(0);
}