/* form.css — 新增 / 编辑任务表单 + 月历底部动作 */

/* ---------------- 月历：新增任务 ---------------- */
.cal__add {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 18px;
  padding: 7px 13px;
  border: 1px solid var(--line-mid);
  background: transparent;
  color: var(--ink-1);
  font-family: var(--font-cn);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: border-color 0.28s var(--ease-out), color 0.28s var(--ease-out),
    background 0.28s var(--ease-out);
}

.cal__add span {
  font-family: var(--font-num);
  font-size: 15px;
  line-height: 1;
  color: var(--accent);
  transition: transform 0.28s var(--ease-out);
}

.cal__add:hover {
  border-color: var(--line-hi);
  background: rgba(127, 178, 217, 0.05);
  color: var(--ink-0);
}

.cal__add:hover span {
  transform: rotate(90deg);
}

.cal__add:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

/* ---------------- 表单 ---------------- */
.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 18px;
  margin-top: 20px;
  text-align: left;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.field--full {
  grid-column: 1 / -1;
}

.field__k {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.input {
  width: 100%;
  min-width: 0;
  padding: 9px 11px;
  border: 1px solid var(--line-mid);
  border-radius: 0;
  background: rgba(7, 12, 19, 0.62);
  color: var(--ink-0);
  font-family: var(--font-cn);
  font-size: 13px;
  letter-spacing: 0.02em;
  transition: border-color 0.25s var(--ease-out), background 0.25s var(--ease-out);
}

.input::placeholder {
  color: var(--ink-3);
}

.input:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(11, 20, 31, 0.86);
}

.input--area {
  min-height: 76px;
  resize: vertical;
  line-height: 1.7;
}

select.input {
  appearance: none;
  padding-right: 30px;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%),
    linear-gradient(135deg, var(--ink-2) 50%, transparent 50%);
  background-position: calc(100% - 15px) calc(50% + 1px), calc(100% - 10px) calc(50% + 1px);
  background-size: 5px 5px;
  background-repeat: no-repeat;
}

/* 浏览器原生日期/时间控件的图标在深色下默认是黑的 */
input[type="datetime-local"]::-webkit-calendar-picker-indicator {
  filter: invert(0.72) sepia(0.1) saturate(2) hue-rotate(170deg);
  cursor: pointer;
  opacity: 0.7;
}

/* 类型选择（三色分段按钮，替代 select） */
.seg {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.seg__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--line-mid);
  border-radius: 0;
  background: transparent;
  color: var(--ink-1);
  font-family: var(--font-cn);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.25s var(--ease-out), background 0.25s var(--ease-out),
    color 0.25s var(--ease-out);
}

.seg__item i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--seg-color);
  opacity: 0.5;
  transition: opacity 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
}

.seg__item.is-on {
  border-color: color-mix(in srgb, var(--seg-color) 62%, transparent);
  background: color-mix(in srgb, var(--seg-color) 12%, transparent);
  color: var(--ink-0);
}

.seg__item.is-on i {
  opacity: 1;
  box-shadow: 0 0 8px var(--seg-color);
}

.seg__item:focus-visible {
  outline: 1px solid var(--seg-color);
  outline-offset: 2px;
}

/* 进度 */
.range-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 36px;
}

.range {
  flex: 1;
  min-width: 0;
  height: 2px;
  appearance: none;
  background: var(--line-hi);
  cursor: pointer;
}

.range::-webkit-slider-thumb {
  appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink-0);
  box-shadow: 0 0 0 4px rgba(127, 178, 217, 0.12);
  cursor: grab;
}

.range::-moz-range-thumb {
  width: 10px;
  height: 10px;
  border: 0;
  border-radius: 50%;
  background: var(--ink-0);
}

.range__out {
  flex: 0 0 auto;
  min-width: 38px;
  text-align: right;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-1);
}

.form__err {
  grid-column: 1 / -1;
  margin: 0;
  color: #e08a82;
  font-size: 11px;
  letter-spacing: 0.1em;
}

.form .sheet__actions {
  grid-column: 1 / -1;
  margin-top: 2px;
}

.btn--danger {
  border-color: rgba(180, 54, 47, 0.45);
  color: #cf8b84;
}

.btn--danger:hover {
  border-color: #b4362f;
  background: rgba(180, 54, 47, 0.08);
  color: #f0a8a0;
}

@media (max-width: 900px) {
  .form {
    grid-template-columns: 1fr;
  }
}