/* ==========================================================================
   desk3 · 咖啡因摄入与睡前残留计算器
   视觉：一天的时间轴 + 咖啡杯刻度。颜色全部走 --d3-* 令牌，深色主题自动生效。
   前缀统一 caf-
   ========================================================================== */

/* ---------- 1. 顶部工具条：添加一杯 ---------- */
.caf-bar { margin-top: 26px; }

.caf-bar-grid {
    display: grid;
    grid-template-columns:
        minmax(0, 1.15fr) minmax(0, .8fr) minmax(0, .95fr)
        minmax(0, .58fr) minmax(0, .84fr) auto;
    gap: 12px;
    align-items: end;
}

.caf-field { min-width: 0; }

.caf-field > label {
    display: block;
    font-size: var(--d3-fs-label);
    font-weight: 600;
    color: var(--d3-ink-2);
    letter-spacing: .01em;
    margin-bottom: 6px;
}

.caf-field .d3-io input { font-size: 14.5px; }

.caf-field input[type="time"] { font-family: var(--d3-mono); }

.caf-submit { min-height: 42px; }

.caf-bar-foot {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 14px;
    align-items: center;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--d3-line);
}

.caf-hint-line {
    font-size: 13px;
    color: var(--d3-ink-3);
    min-width: 0;
}
.caf-hint-line b {
    font-family: var(--d3-mono);
    font-size: 14px;
    color: var(--d3-accent);
    font-weight: 700;
}

.caf-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-left: auto;
}

/* 按钮 */
.caf-btn {
    appearance: none;
    font: inherit;
    font-size: 14px;
    font-weight: 650;
    line-height: 1.2;
    padding: 10px 18px;
    border-radius: var(--d3-radius-sm);
    border: 1px solid var(--d3-accent);
    background: var(--d3-accent);
    color: var(--d3-accent-ink);
    cursor: pointer;
    white-space: nowrap;
    transition: filter .15s ease, transform .12s ease, border-color .15s ease, color .15s ease;
}
.caf-btn:hover { filter: brightness(1.08); }
.caf-btn:active { transform: translateY(1px); }

.caf-btn-ghost {
    background: var(--d3-card);
    border-color: var(--d3-line-2);
    color: var(--d3-ink-2);
    font-weight: 600;
    padding: 8px 13px;
    font-size: 13px;
}
.caf-btn-ghost:hover {
    filter: none;
    border-color: var(--d3-accent);
    color: var(--d3-accent);
}

.caf-err {
    margin-top: 10px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--d3-bad);
}
.caf-err[hidden] { display: none; }

/* ---------- 2. 主舞台 ---------- */
.caf-stage {
    display: grid;
    gap: 16px;
    margin-top: 18px;
}

.caf-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 16px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--d3-line);
    background: var(--d3-card-2);
}
.caf-head h2 {
    font-size: var(--d3-fs-h3);
    letter-spacing: -.01em;
}
.caf-head .caf-tag {
    font-family: var(--d3-mono);
    font-size: 11.5px;
    color: var(--d3-ink-3);
    letter-spacing: .04em;
}
.caf-head-ctl {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 18px;
    margin-left: auto;
}

.caf-ctl {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    color: var(--d3-ink-3);
    white-space: nowrap;
}
.caf-ctl b {
    font-family: var(--d3-mono);
    font-size: 12.5px;
    font-weight: 700;
    color: var(--d3-ink);
}

.caf-time-input {
    font-family: var(--d3-mono);
    font-size: 13px;
    font-weight: 700;
    color: var(--d3-ink);
    background: var(--d3-paper);
    border: 1px solid var(--d3-line-2);
    border-radius: 6px;
    padding: 5px 8px;
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}
.caf-time-input:focus {
    border-color: var(--d3-accent);
    box-shadow: 0 0 0 3px rgba(var(--d3-accent-rgb), .13);
}

.caf-range {
    -webkit-appearance: none;
    appearance: none;
    width: 128px;
    height: 18px;
    background: transparent;
    cursor: pointer;
    margin: 0;
}
.caf-range::-webkit-slider-runnable-track {
    height: 4px;
    border-radius: 999px;
    background: var(--d3-line-2);
}
.caf-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 15px;
    height: 15px;
    margin-top: -5.5px;
    border-radius: 50%;
    background: var(--d3-accent);
    border: 2px solid var(--d3-card);
    box-shadow: 0 1px 3px rgba(0, 0, 0, .22);
}
.caf-range::-moz-range-track {
    height: 4px;
    border-radius: 999px;
    background: var(--d3-line-2);
}
.caf-range::-moz-range-thumb {
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: var(--d3-accent);
    border: 2px solid var(--d3-card);
}

/* ---------- 3. 时间轴图表 ---------- */
.caf-chart-wrap { padding: 12px 14px 2px; }
.caf-chart-box { width: 100%; min-width: 0; }
.caf-chart-box svg { display: block; width: 100%; height: auto; }

.caf-axis-txt {
    font-family: var(--d3-mono);
    font-size: 11px;
    fill: var(--d3-ink-3);
}
.caf-g-grid { stroke: var(--d3-line); stroke-width: 1; }
.caf-g-axis { stroke: var(--d3-line-2); stroke-width: 1; }
.caf-area { fill: url(#cafGrad); }
.caf-stop-a { stop-color: var(--d3-accent); stop-opacity: .26; }
.caf-stop-b { stop-color: var(--d3-accent); stop-opacity: .02; }
.caf-curve {
    fill: none;
    stroke: var(--d3-accent);
    stroke-width: 2.2;
    stroke-linejoin: round;
    stroke-linecap: round;
}
.caf-limit-line {
    stroke: var(--d3-bad);
    stroke-width: 1.2;
    stroke-dasharray: 5 4;
    opacity: .85;
}
.caf-limit-txt {
    font-family: var(--d3-mono);
    font-size: 10.5px;
    fill: var(--d3-bad);
}
.caf-bed-line {
    stroke: var(--d3-ink-3);
    stroke-width: 1.2;
    stroke-dasharray: 3 4;
    opacity: .9;
}
.caf-bed-txt {
    font-family: var(--d3-mono);
    font-size: 10.5px;
    fill: var(--d3-ink-2);
}
.caf-ref-line {
    stroke: var(--d3-ok);
    stroke-width: 1;
    stroke-dasharray: 1 5;
    stroke-linecap: round;
    opacity: .8;
}
.caf-ref-txt {
    font-family: var(--d3-mono);
    font-size: 10px;
    fill: var(--d3-ok);
}
.caf-cup-line {
    stroke: var(--d3-accent);
    stroke-width: 1;
    stroke-dasharray: 2 4;
    opacity: .45;
}
.caf-cup-dot {
    fill: var(--d3-accent);
    stroke: var(--d3-card);
    stroke-width: 2;
}
.caf-cup-txt {
    font-family: var(--d3-mono);
    font-size: 10.5px;
    font-weight: 700;
    fill: var(--d3-ink-2);
}

.caf-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 16px;
    padding: 4px 16px 14px;
    font-size: 12px;
    color: var(--d3-ink-3);
}
.caf-legend span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.caf-legend i {
    flex: none;
    display: inline-block;
    width: 16px;
    height: 0;
    border-top: 2px solid currentColor;
}
.caf-legend .lg-curve { color: var(--d3-accent); }
.caf-legend .lg-bed { color: var(--d3-ink-3); border-top-style: dashed; }
.caf-legend .lg-limit { color: var(--d3-bad); border-top-style: dashed; }
.caf-legend .lg-ref { color: var(--d3-ok); border-top-style: dotted; }

/* ---------- 4. 下层：清单 + 上限对比 ---------- */
.caf-lower {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 16px;
    align-items: start;
}
.caf-lower > section { min-width: 0; }
.caf-lower .d3-panel-body { padding: 16px; }

.caf-items {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 8px;
}
.caf-item {
    display: grid;
    grid-template-columns: 50px minmax(0, 1fr) auto 28px;
    gap: 10px;
    align-items: center;
    padding: 8px 10px;
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius-sm);
    background: var(--d3-paper);
}
.caf-item-time {
    font-family: var(--d3-mono);
    font-size: 13px;
    font-weight: 700;
    color: var(--d3-accent);
    letter-spacing: -.01em;
}
.caf-item-name {
    min-width: 0;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--d3-ink);
    line-height: 1.4;
}
.caf-item-name small {
    display: block;
    font-family: var(--d3-mono);
    font-size: 10.5px;
    font-weight: 400;
    color: var(--d3-ink-3);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.caf-item-bar {
    display: block;
    height: 3px;
    margin-top: 5px;
    border-radius: 999px;
    background: var(--d3-line);
    overflow: hidden;
}
.caf-item-bar i {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: var(--d3-accent);
    opacity: .75;
}
.caf-item-mg {
    font-family: var(--d3-mono);
    font-size: 15px;
    font-weight: 700;
    color: var(--d3-ink);
    text-align: right;
    white-space: nowrap;
}
.caf-item-mg small {
    font-family: var(--d3-sans);
    font-size: 10.5px;
    font-weight: 500;
    color: var(--d3-ink-3);
    margin-left: 2px;
}
.caf-del {
    width: 26px;
    height: 26px;
    display: grid;
    place-items: center;
    font: inherit;
    font-size: 14px;
    line-height: 1;
    border-radius: 6px;
    border: 1px solid var(--d3-line-2);
    background: var(--d3-card);
    color: var(--d3-ink-3);
    cursor: pointer;
    transition: border-color .15s ease, color .15s ease, background .15s ease;
}
.caf-del:hover {
    border-color: var(--d3-bad);
    color: var(--d3-bad);
    background: rgba(176, 42, 36, .07);
}

.caf-empty {
    padding: 16px 14px;
    border: 1px dashed var(--d3-line-2);
    border-radius: var(--d3-radius-sm);
    font-size: 13px;
    line-height: 1.7;
    color: var(--d3-ink-3);
    text-align: center;
}

.caf-list-foot {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-top: 12px;
    font-size: 12px;
    color: var(--d3-ink-3);
}

/* 上限对比 */
.caf-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.caf-chips input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.caf-chips label {
    cursor: pointer;
    font-size: 12.5px;
    font-weight: 600;
    padding: 6px 11px;
    border: 1px solid var(--d3-line-2);
    border-radius: 999px;
    color: var(--d3-ink-2);
    background: var(--d3-paper);
    transition: all .14s ease;
    user-select: none;
    white-space: nowrap;
}
.caf-chips label:hover { border-color: var(--d3-accent); color: var(--d3-accent); }
.caf-chips input:checked + label {
    background: var(--d3-accent);
    border-color: var(--d3-accent);
    color: var(--d3-accent-ink);
}
.caf-chips input:focus-visible + label {
    outline: 2px solid rgba(var(--d3-accent-rgb), .6);
    outline-offset: 2px;
}

.caf-total {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-top: 16px;
    font-family: var(--d3-mono);
    font-size: clamp(30px, 4.6vw, 40px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -.03em;
    color: var(--d3-ink);
}
.caf-total small {
    font-family: var(--d3-sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--d3-ink-3);
    letter-spacing: 0;
}
.caf-total-note {
    margin-top: 4px;
    font-size: 13px;
    line-height: 1.6;
    color: var(--d3-ink-2);
}

.caf-gauge {
    position: relative;
    height: 12px;
    margin-top: 14px;
    border-radius: 999px;
    background: var(--d3-paper-2);
    border: 1px solid var(--d3-line);
    overflow: hidden;
}
.caf-gauge i {
    display: block;
    height: 100%;
    width: 0;
    border-radius: 999px;
    background: var(--d3-accent);
    transition: width .3s cubic-bezier(.4, 0, .2, 1), background .2s ease;
}
.caf-gauge.is-warn i { background: var(--d3-warn); }
.caf-gauge.is-over i { background: var(--d3-bad); }

.caf-scale {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 5px;
    font-family: var(--d3-mono);
    font-size: 10.5px;
    color: var(--d3-ink-3);
}

.caf-kv {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    margin-top: 14px;
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius-sm);
    background: var(--d3-line);
    overflow: hidden;
}
.caf-kv > div {
    min-width: 0;
    padding: 9px 12px;
    background: var(--d3-card);
}
.caf-kv dt {
    margin: 0 0 2px;
    font-size: 11.5px;
    color: var(--d3-ink-3);
}
.caf-kv dd {
    margin: 0;
    font-family: var(--d3-mono);
    font-size: 14px;
    font-weight: 700;
    color: var(--d3-ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.caf-kv dd.is-ok { color: var(--d3-ok); }
.caf-kv dd.is-warn { color: var(--d3-warn); }
.caf-kv dd.is-bad { color: var(--d3-bad); }

.caf-alerts {
    display: grid;
    gap: 8px;
    margin-top: 14px;
}
.caf-alerts:empty { display: none; }

.caf-alert {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    padding: 8px 11px;
    font-size: 12.5px;
    line-height: 1.6;
    border-radius: var(--d3-radius-sm);
    border: 1px solid var(--d3-line-2);
    background: var(--d3-paper-2);
    color: var(--d3-ink-2);
}

.caf-alert::before {
    content: "";
    flex: none;
    width: 6px;
    height: 6px;
    margin-top: 6px;
    border-radius: 50%;
    background: var(--d3-ink-3);
}

.caf-alert.is-warn { border-color: rgba(168, 84, 26, .4); background: rgba(168, 84, 26, .07); color: var(--d3-warn); }
.caf-alert.is-warn::before { background: var(--d3-warn); }
.caf-alert.is-bad { border-color: rgba(176, 42, 36, .38); background: rgba(176, 42, 36, .07); color: var(--d3-bad); }
.caf-alert.is-bad::before { background: var(--d3-bad); }

.caf-foot-note {
    margin-top: 12px;
    font-size: 12px;
    line-height: 1.7;
    color: var(--d3-ink-3);
}

/* ---------- 5. 常见饮品表 ---------- */
.caf-table td:first-child { font-weight: 600; }
.caf-drink-name {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.caf-drink-name i {
    width: 8px;
    height: 8px;
    flex: none;
    border-radius: 2px;
    background: var(--d3-accent);
    opacity: .55;
}
.caf-table tbody tr td { white-space: nowrap; }
.caf-addbtn {
    font: inherit;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.2;
    padding: 5px 11px;
    border-radius: 999px;
    border: 1px solid var(--d3-line-2);
    background: var(--d3-card);
    color: var(--d3-ink-2);
    cursor: pointer;
    white-space: nowrap;
    transition: all .14s ease;
}
.caf-addbtn:hover {
    border-color: var(--d3-accent);
    color: var(--d3-accent);
    background: rgba(var(--d3-accent-rgb), .07);
}

.caf-src {
    margin-top: 10px;
    font-size: 12px;
    line-height: 1.7;
    color: var(--d3-ink-3);
}

/* ---------- 6. 正文补充 ---------- */
.caf-timeline-read {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 10px;
    margin-top: 14px;
    padding: 14px 16px;
    border: 1px solid var(--d3-line);
    border-radius: var(--d3-radius-sm);
    background: var(--d3-card);
}
.caf-timeline-read div { min-width: 0; }
.caf-timeline-read b {
    display: block;
    font-family: var(--d3-mono);
    font-size: 11px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--d3-accent);
    margin-bottom: 3px;
}
.caf-timeline-read span {
    font-size: 13px;
    line-height: 1.7;
    color: var(--d3-ink-2);
}

/* ---------- 7. 响应式 ---------- */
@media (max-width: 1100px) {
    .caf-bar-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .caf-bar-grid .caf-field-drink { grid-column: span 2; }
    .caf-submit { width: 100%; }
}

@media (max-width: 960px) {
    .caf-lower { grid-template-columns: minmax(0, 1fr); }
    .caf-head-ctl { margin-left: 0; width: 100%; }
}

@media (max-width: 640px) {
    .caf-bar { margin-top: 18px; }
    .caf-bar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
    .caf-bar-grid .caf-field-drink { grid-column: span 2; }
    .caf-submit { grid-column: 1 / -1; }
    .caf-bar-foot { gap: 8px; }
    .caf-actions { margin-left: 0; width: 100%; }
    .caf-actions .caf-btn-ghost { flex: 1 1 0; min-width: 0; padding: 8px 6px; }
    .caf-chart-wrap { padding: 8px 6px 0; }
    .caf-legend { padding: 2px 10px 12px; gap: 4px 12px; }
    .caf-head { padding: 10px 12px; gap: 8px 12px; }
    .caf-head-ctl { gap: 8px 12px; }
    .caf-range { width: 96px; }
    .caf-lower .d3-panel-body { padding: 13px; }
    .caf-item { grid-template-columns: 46px minmax(0, 1fr) auto 26px; gap: 8px; padding: 8px; }
    .caf-item-name small { font-size: 10px; }
    .caf-kv dd { font-size: 13.5px; }
    .caf-total { margin-top: 12px; }
}

@media (max-width: 400px) {
    .caf-item-name small { display: none; }
    .caf-kv { grid-template-columns: minmax(0, 1fr); }
}