/* ============================================================
 * toolbox.css
 * 実用ツール集（page-toolbox.php 専用）
 * base.css のデザイントークンに準拠したダークテーマ
 * ============================================================ */

.toolbox-page {
    max-width: var(--max-width-article);
    margin: 0 auto;
    padding: 0 var(--space-2) var(--space-4);
}

.toolbox {
    --tool-radius: 14px;
    --tool-accent-soft: rgba(77, 171, 247, 0.12);
}

/* ----------------------------------------------------------
 * タブナビ
 * ---------------------------------------------------------- */
.toolbox__tabs {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 4px 0 12px;
    margin-bottom: var(--space-3);
    scrollbar-width: none;
    -ms-overflow-style: none;
    border-bottom: 1px solid var(--color-border);
}
.toolbox__tabs::-webkit-scrollbar {
    display: none;
}
.toolbox__tab {
    flex: 0 0 auto;
    padding: 9px 16px;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: var(--color-bg-card);
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.2s, background 0.2s, border-color 0.2s, transform 0.12s;
}
.toolbox__tab:hover {
    color: var(--color-text);
    background: var(--color-bg-card-hover);
}
.toolbox__tab:active {
    transform: translateY(1px);
}
.toolbox__tab.is-active {
    color: #fff;
    background: linear-gradient(135deg, var(--color-accent), #74c0fc);
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(77, 171, 247, 0.3);
}

/* ----------------------------------------------------------
 * パネル / 共通カード
 * ---------------------------------------------------------- */
.toolbox__panel {
    animation: toolbox-fade 0.3s ease;
}
.toolbox__panel[hidden] {
    display: none;
}
@keyframes toolbox-fade {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.tool-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--tool-radius);
    padding: var(--space-3);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
}
.tool-card__note {
    margin: var(--space-2) 0 0;
    font-size: 0.78rem;
    color: var(--color-text-subtle);
    line-height: 1.6;
}

/* ----------------------------------------------------------
 * 汎用フォーム部品
 * ---------------------------------------------------------- */
.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}
.field__label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-muted);
}
.field__input,
.field__select {
    width: 100%;
    padding: 0.7em 0.85em;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    -webkit-appearance: none;
    appearance: none;
}
.field__select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23a0a0a0'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.6em center;
    background-size: 1.2em;
    padding-right: 2.2em;
    cursor: pointer;
}
.field__input:focus,
.field__select:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--tool-accent-soft);
}
.field__input--readonly {
    background: var(--color-bg-card);
    color: var(--color-accent-hover);
    font-weight: 700;
}
.field__input--area {
    resize: vertical;
    line-height: 1.6;
}
.field__input::placeholder {
    color: var(--color-text-subtle);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
}
.form-grid__full {
    grid-column: 1 / -1;
}

.radio-row {
    display: flex;
    gap: var(--space-2);
    padding-top: 4px;
}
.radio {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.92rem;
    color: var(--color-text);
    cursor: pointer;
}
.radio input {
    accent-color: var(--color-accent);
    width: 1.05em;
    height: 1.05em;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 0.75em 1.4em;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.2s, transform 0.12s, box-shadow 0.2s;
    text-decoration: none;
}
.btn--primary {
    background: linear-gradient(135deg, var(--color-accent), #74c0fc);
    color: #fff;
    box-shadow: 0 4px 14px rgba(77, 171, 247, 0.28);
}
.btn--primary:hover {
    color: #fff;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(77, 171, 247, 0.4);
}
.btn--primary:active {
    transform: translateY(1px);
}

/* セグメント切替（換算カテゴリ・日付モード） */
.seg {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 4px;
    margin-bottom: var(--space-3);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 999px;
}
.seg__btn {
    flex: 1 1 auto;
    padding: 8px 12px;
    border: none;
    border-radius: 999px;
    background: transparent;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.2s, background 0.2s;
}
.seg__btn:hover {
    color: var(--color-text);
}
.seg__btn.is-active {
    color: #fff;
    background: var(--color-accent);
}

/* 結果リスト（割引/割り勘/日付で共用） */
.result-list {
    margin-top: var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.result-list__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    padding: 0.7em 1em;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
}
.result-list__row:last-child {
    border-bottom: none;
}
.result-list__row b {
    font-size: 1.05rem;
    color: var(--color-text);
    font-variant-numeric: tabular-nums;
}
.result-list__row--strong {
    background: var(--color-bg-card);
}
.result-list__row--strong b {
    font-size: 1.25rem;
    color: var(--color-accent-hover);
}
.result-list__row--accent {
    background: var(--tool-accent-soft);
}
.result-list__row--accent b {
    color: var(--color-accent-hover);
}

/* ----------------------------------------------------------
 * 電卓
 * ---------------------------------------------------------- */
.calc {
    max-width: 420px;
    margin: 0 auto;
}
.calc__display {
    position: relative;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.8em 1em;
    margin-bottom: var(--space-2);
    text-align: right;
}
.calc__history {
    min-height: 1.3em;
    font-size: 0.85rem;
    color: var(--color-text-subtle);
    font-variant-numeric: tabular-nums;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.calc__result {
    width: 100%;
    border: none;
    background: transparent;
    color: var(--color-text);
    font-size: clamp(1.8rem, 8vw, 2.6rem);
    font-weight: 700;
    text-align: right;
    outline: none;
    font-variant-numeric: tabular-nums;
    padding: 0;
}
.calc__memory-flag {
    position: absolute;
    top: 8px;
    left: 12px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0;
    transition: opacity 0.2s;
}
.calc__memory-flag.is-active {
    opacity: 1;
}
.calc__keys {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}
.calc__key {
    padding: 0;
    height: 60px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-card);
    color: var(--color-text);
    font-size: 1.25rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.12s, transform 0.08s, box-shadow 0.12s;
    user-select: none;
}
.calc__key:hover {
    background: var(--color-bg-card-hover);
}
.calc__key:active {
    transform: translateY(2px);
    box-shadow: none;
}
.calc__key--fn {
    background: rgba(255, 255, 255, 0.02);
    color: var(--color-text-muted);
    font-size: 1.05rem;
}
.calc__key--op {
    background: var(--tool-accent-soft);
    color: var(--color-accent-hover);
    font-weight: 700;
}
.calc__key--op.is-active {
    background: var(--color-accent);
    color: #fff;
}
.calc__key--clear {
    color: #ff8787;
}
.calc__key--del {
    color: var(--color-text-muted);
}
.calc__key--eq {
    background: linear-gradient(135deg, var(--color-accent), #74c0fc);
    color: #fff;
    font-weight: 800;
}

/* ----------------------------------------------------------
 * 単位換算
 * ---------------------------------------------------------- */
.convert__row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: end;
    gap: var(--space-2);
}
.convert__row .field {
    gap: 8px;
}
.convert__row .field__input + .field__select {
    margin-top: 2px;
}
.convert__swap {
    flex: 0 0 auto;
    width: 44px;
    height: 44px;
    margin-bottom: 4px;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    background: var(--color-bg-card);
    color: var(--color-accent);
    font-size: 1.3rem;
    cursor: pointer;
    transition: background 0.2s, transform 0.3s;
}
.convert__swap:hover {
    background: var(--color-bg-card-hover);
}
.convert__swap:active {
    transform: rotate(180deg);
}
.convert__formula {
    margin: var(--space-3) 0 0;
    padding: 0.7em 1em;
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-align: center;
    font-variant-numeric: tabular-nums;
}
.convert__row--dates {
    grid-template-columns: 1fr 1fr;
}

/* ----------------------------------------------------------
 * 健康(BMI)
 * ---------------------------------------------------------- */
.health-result {
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border);
}
.health-result__bmi {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: var(--space-2);
}
.health-result__bmi-value {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--color-accent-hover);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}
.health-result__bmi-unit {
    font-size: 0.95rem;
    color: var(--color-text-muted);
}
.health-result__badge {
    margin-left: auto;
    padding: 0.35em 0.9em;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 700;
    background: var(--color-bg-card);
    color: var(--color-text);
}
.health-result__badge.is-low    { background: rgba(116, 192, 252, 0.18); color: #74c0fc; }
.health-result__badge.is-normal { background: rgba(105, 219, 124, 0.18); color: #69db7c; }
.health-result__badge.is-over   { background: rgba(255, 212, 59, 0.18);  color: #ffd43b; }
.health-result__badge.is-obese  { background: rgba(255, 135, 135, 0.18); color: #ff8787; }

.gauge {
    position: relative;
    height: 12px;
    border-radius: 999px;
    margin: var(--space-3) 0;
    background: linear-gradient(90deg, #74c0fc 0%, #69db7c 28%, #69db7c 45%, #ffd43b 60%, #ff8787 85%);
    overflow: visible;
}
.gauge__pointer {
    position: absolute;
    top: 50%;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--color-bg-elevated);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    transform: translate(-50%, -50%);
    left: 0;
    transition: left 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.health-result__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
    margin-top: var(--space-2);
}
.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0.8em;
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    text-align: center;
}
.stat__label {
    font-size: 0.75rem;
    color: var(--color-text-subtle);
}
.stat__value {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text);
    font-variant-numeric: tabular-nums;
}

/* ----------------------------------------------------------
 * QRコード
 * ---------------------------------------------------------- */
.qr__options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
    margin-top: var(--space-2);
}
.qr__canvas {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    margin-top: var(--space-3);
    padding: var(--space-3);
    background: var(--color-bg-card);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
}
.qr__canvas img,
.qr__canvas canvas {
    background: #fff;
    padding: 12px;
    border-radius: 8px;
    width: auto;
    height: auto;
}
.qr__placeholder {
    margin: 0;
    color: var(--color-text-subtle);
    font-size: 0.9rem;
    text-align: center;
}
.qr__download {
    width: 100%;
    margin-top: var(--space-2);
}

/* ----------------------------------------------------------
 * レスポンシブ
 * ---------------------------------------------------------- */
@media (max-width: 600px) {
    .tool-card {
        padding: var(--space-2);
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .convert__row {
        grid-template-columns: 1fr;
        gap: var(--space-1);
    }
    .convert__swap {
        justify-self: center;
        margin: 2px 0;
    }
    .convert__row--dates {
        grid-template-columns: 1fr;
    }
    .health-result__stats {
        grid-template-columns: 1fr;
    }
    .calc__key {
        height: 56px;
        font-size: 1.15rem;
    }
}