/* ==========================================================================
   줍줍데이 — 계산기·툴 컴포넌트 (회생 2026-04-07)
   CSS 변수는 critical.css 에서 정의됨
   ========================================================================== */

/* === 공통 페이지 컨테이너 === */
.tools-hub,
.tools-category-page,
.tool-page {
    max-width: 1080px;
    margin: 0 auto;
    padding: 16px 20px 48px;
}

/* === 빵부스러기 === */
.tools-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.tools-breadcrumb a { color: var(--text-muted); }
.tools-breadcrumb a:hover { color: var(--primary); }
.tools-breadcrumb i { font-size: 0.625rem; opacity: 0.5; }
.tools-breadcrumb span { color: var(--text); font-weight: 600; }

/* === 허브 인트로 === */
.tools-intro {
    text-align: center;
    padding: 32px 16px 36px;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--border);
}
.tools-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: var(--accent);
    margin-bottom: 12px;
    text-transform: uppercase;
}
.tools-intro-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    margin: 0 0 12px;
}
.tools-intro-desc {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 640px;
    margin: 0 auto;
}

/* === 카테고리 블록 (허브) === */
.tools-cat-block {
    margin: 40px 0;
}
.tools-cat-head {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--text);
}
.tools-cat-head-icon {
    font-size: 1.625rem;
    line-height: 1;
    padding-top: 4px;
}
.tools-cat-head-body { flex: 1; }
.tools-cat-head-title {
    font-size: 1.375rem;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 4px;
    letter-spacing: -0.01em;
}
.tools-cat-head-title a { color: inherit; }
.tools-cat-head-title a:hover { color: var(--primary); }
.tools-cat-head-count {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-left: 6px;
}
.tools-cat-head-desc {
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.6;
}

/* === 카테고리 페이지 헤더 === */
.tools-cat-page-head {
    text-align: center;
    padding: 24px 16px 28px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
}
.tools-cat-page-icon {
    font-size: 2.25rem;
    margin-bottom: 12px;
}
.tools-cat-page-title {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 8px;
    letter-spacing: -0.02em;
}
.tools-cat-page-desc {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* === 도구 그리드 === */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}
.tool-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 20px 22px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}
.tool-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}
.tool-card-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
}
.tool-card-body { flex: 1; min-width: 0; }
.tool-card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 4px;
    line-height: 1.4;
}
.tool-card-desc {
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.tool-card-arrow {
    color: var(--text-muted);
    font-size: 0.75rem;
    align-self: center;
    transition: transform var(--transition-fast), color var(--transition-fast);
}
.tool-card:hover .tool-card-arrow {
    transform: translateX(4px);
    color: var(--primary);
}

/* === 빈 상태 === */
.tools-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px dashed var(--border);
}
.tools-empty i {
    font-size: 2rem;
    margin-bottom: 8px;
    opacity: 0.4;
}
.tools-empty p { font-size: 0.9375rem; margin: 0; }

/* === 관련 잡지 카테고리 (카테고리 페이지 하단) === */
.tools-related-articles {
    margin: 32px 0;
    padding: 20px 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.tools-related-articles h3 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-muted);
    margin: 0 0 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.tools-related-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 600;
    font-size: 1rem;
}
.tools-related-link:hover { color: var(--primary); }
.tools-related-link > i:last-child {
    margin-left: auto;
    font-size: 0.75rem;
    opacity: 0.6;
}

/* ==========================================================================
   개별 도구 페이지 (tool-page)
   ========================================================================== */

.tool-page-head {
    margin-bottom: 24px;
}
.tool-page-category {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 10px;
}
.tool-page-title {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 10px;
    line-height: 1.3;
    letter-spacing: -0.02em;
}
.tool-page-desc {
    font-size: 1.0625rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0 0 12px;
}
.tool-page-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 0.8125rem;
    color: var(--text-muted);
}
.tool-page-meta span { display: flex; align-items: center; gap: 5px; }
.tool-page-meta i { color: var(--accent); }

/* === 계산기 메인 영역 (입력 + 결과) === */
.calc-main {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 24px;
    margin: 24px 0 32px;
}

/* 입력 패널 */
.calc-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 26px;
}
.calc-form-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.calc-field {
    margin-bottom: 18px;
}
.calc-field:last-child { margin-bottom: 0; }
.calc-field label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}
.calc-field-help {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
    line-height: 1.5;
}
.calc-input-wrap {
    position: relative;
    display: flex;
    align-items: stretch;
}
.calc-input-wrap input,
.calc-input-wrap select {
    flex: 1;
    width: 100%;
    padding: 12px 14px;
    font-size: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text);
    font-weight: 600;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.calc-input-wrap input:focus,
.calc-input-wrap select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(11,37,69,0.08);
}
.calc-input-suffix {
    display: flex;
    align-items: center;
    padding: 0 14px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-left: none;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.calc-input-wrap input.has-suffix {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}
.calc-radio-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.calc-radio-group label {
    flex: 1;
    min-width: 80px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    text-align: center;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0;
    transition: all var(--transition-fast);
}
.calc-radio-group input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.calc-radio-group input[type="radio"]:checked + label,
.calc-radio-group label:has(input:checked) {
    background: var(--primary);
    color: var(--text-inverse);
    border-color: var(--primary);
}

/* 결과 패널 */
.calc-result {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 26px;
}
.calc-result-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.calc-result-hero {
    text-align: center;
    padding: 22px 16px;
    background: var(--primary);
    color: var(--text-inverse);
    border-radius: var(--radius);
    margin-bottom: 20px;
}
.calc-result-hero-label {
    font-size: 0.8125rem;
    font-weight: 600;
    opacity: 0.85;
    margin-bottom: 6px;
    letter-spacing: 0.04em;
}
.calc-result-hero-value {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
}
.calc-result-hero-sub {
    font-size: 0.8125rem;
    opacity: 0.8;
    margin-top: 6px;
}
[data-theme="dark"] .calc-result-hero {
    background: var(--primary-light);
    color: var(--text);
}

.calc-result-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border);
}
.calc-result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--surface);
    font-size: 0.9375rem;
}
.calc-result-row.is-deduction { color: var(--danger); }
.calc-result-row.is-total {
    background: var(--bg-secondary);
    font-weight: 700;
    color: var(--text);
}
.calc-result-row .label { color: var(--text-secondary); }
.calc-result-row .value { font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; }
.calc-result-row.is-deduction .value { color: var(--danger); }

.calc-disclaimer {
    margin-top: 14px;
    padding: 10px 14px;
    background: var(--accent-light);
    border-left: 3px solid var(--accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* === 검증·출처 신뢰 박스 (Phase 2D E-E-A-T) === */
.tool-verify {
    margin: 28px 0 0;
    padding: 18px 22px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.tv-head {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text);
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}
.tv-head i { color: var(--accent); }
.tv-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.tv-list li {
    display: flex;
    gap: 12px;
    padding: 6px 0;
    font-size: 0.8125rem;
    line-height: 1.6;
    border-bottom: 1px dashed var(--border);
}
.tv-list li:last-child { border-bottom: none; }
.tv-label {
    flex-shrink: 0;
    width: 90px;
    font-weight: 700;
    color: var(--text-muted);
}
.tv-value { color: var(--text-secondary); flex: 1; }
.tv-value a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.tv-value a:hover { color: var(--primary-dark); }
@media (max-width: 640px) {
    .tv-list li { flex-direction: column; gap: 2px; }
    .tv-label { width: auto; }
}

/* === 본문 (설명/공식/사례/FAQ) === */
.tool-body {
    max-width: 800px;
    margin: 32px auto 0;
    font-size: 1.0625rem;
    line-height: 1.85;
    color: var(--text-secondary);
    word-break: keep-all;
}
.tool-body h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    margin: 36px 0 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border);
    letter-spacing: -0.01em;
}
.tool-body h3 {
    font-size: 1.1875rem;
    font-weight: 700;
    color: var(--text);
    margin: 24px 0 10px;
}
.tool-body p { margin-bottom: 14px; }
.tool-body ul { margin: 8px 0 16px 20px; list-style: disc; }
.tool-body ol { margin: 8px 0 16px 22px; list-style: decimal; }
.tool-body li { margin-bottom: 6px; }
.tool-body strong { color: var(--text); font-weight: 700; }
.tool-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 0.9375rem;
}
.tool-body th, .tool-body td {
    border: 1px solid var(--border);
    padding: 10px 12px;
    text-align: left;
}
.tool-body th { background: var(--bg-secondary); font-weight: 700; color: var(--text); }

/* 공식 박스 */
.tool-formula {
    margin: 18px 0;
    padding: 18px 22px;
    background: var(--bg-secondary);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.9375rem;
    color: var(--text);
    overflow-x: auto;
}

/* FAQ */
.tool-faq { margin-top: 28px; }
.tool-faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    overflow: hidden;
    background: var(--surface);
}
.tool-faq-q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text);
    cursor: pointer;
    user-select: none;
}
.tool-faq-q::after {
    content: "+";
    font-size: 1.25rem;
    color: var(--text-muted);
    font-weight: 400;
    transition: transform 0.2s;
}
.tool-faq-item.open .tool-faq-q::after { content: "−"; }
.tool-faq-a {
    display: none;
    padding: 0 20px 18px;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
}
.tool-faq-item.open .tool-faq-a { display: block; }

/* === 반응형 === */
@media (max-width: 900px) {
    .calc-main { grid-template-columns: 1fr; }
    .tool-page-title { font-size: 1.625rem; }
    .calc-result-hero-value { font-size: 1.875rem; }
}
@media (max-width: 640px) {
    .tools-intro-title { font-size: 1.5rem; }
    .tools-cat-page-title { font-size: 1.375rem; }
    .tools-grid { grid-template-columns: 1fr; }
    .tool-card { padding: 16px 18px; }
    .calc-form, .calc-result { padding: 18px 20px; }
    .calc-result-hero-value { font-size: 1.625rem; }
    .tool-body { font-size: 1rem; }
    .tool-body h2 { font-size: 1.25rem; }
}