/* ═══════════════════════════════════════════════════════
    증권거래세 계산기 — style.css
    caboojoy pastel sky-blue glassmorphism theme
    ═══════════════════════════════════════════════════════ */

    /* ── CSS 변수 ───────────────────────────────────────── */
    :root {
        --bg-from: #c9e8ff;
        --bg-to: #f0faff;
        --glass: rgba(255, 255, 255, 0.72);
        --glass-border: rgba(255, 255, 255, 0.85);
        --glass-shadow: 0 8px 32px rgba(100, 160, 220, 0.18);
    
        --blue-100: #dff0ff;
        --blue-200: #b8dcff;
        --blue-400: #5ba3e0;
        --blue-500: #3b82c4;
        --blue-600: #2a6aac;
        --blue-800: #1a4a8a;
    
        --accent-green: #4caf8a;
        --accent-red: #e05b5b;
        --accent-orange: #e07a3b;
    
        --text-primary: #1a2d4a;
        --text-secondary: #4a6080;
        --text-muted: #8aaccb;
    
        --radius-sm: 10px;
        --radius-md: 16px;
        --radius-lg: 24px;
    
        --font: 'Pretendard', -apple-system, 'Apple SD Gothic Neo', sans-serif;
    }
    
    /* ── 리셋 & 기본 ────────────────────────────────────── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    
    body {
        font-family: var(--font);
        background: linear-gradient(145deg, var(--bg-from) 0%, var(--bg-to) 100%);
        min-height: 100vh;
        color: var(--text-primary);
        -webkit-font-smoothing: antialiased;
    }
    
    /* ── 헤더 ───────────────────────────────────────────── */
    .site-header {
        background: linear-gradient(135deg, #2a6aac 0%, #3b9de0 60%, #5bc8f5 100%);
        padding: 36px 20px 32px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    
    .site-header::before {
        content: '';
        position: absolute;
        top: -40%;
        left: -10%;
        width: 120%;
        height: 200%;
        background: radial-gradient(ellipse, rgba(255,255,255,0.12) 0%, transparent 65%);
        pointer-events: none;
    }
    
    .header-logo {
        display: inline-block;
        font-size: 12px;
        font-weight: 700;
        letter-spacing: 0.15em;
        color: rgba(255,255,255,0.65);
        text-transform: uppercase;
        margin-bottom: 8px;
    }
    
    .header-title {
        font-size: clamp(22px, 5vw, 32px);
        font-weight: 800;
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        letter-spacing: -0.5px;
    }
    
    .icon-badge {
        font-size: 0.9em;
        background: rgba(255,255,255,0.2);
        border-radius: 50%;
        width: 1.4em;
        height: 1.4em;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }
    
    .header-sub {
        margin-top: 8px;
        font-size: 14px;
        color: rgba(255,255,255,0.80);
        font-weight: 400;
    }
    
    /* ── 컨테이너 ────────────────────────────────────────── */
    .container {
        max-width: 900px;
        margin: 0 auto;
        padding: 28px 16px 60px;
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    
    /* ── 알림 배너 ───────────────────────────────────────── */
    .notice-banner {
        background: rgba(91, 163, 224, 0.15);
        border: 1px solid rgba(91, 163, 224, 0.35);
        border-radius: var(--radius-sm);
        padding: 12px 16px;
        font-size: 13.5px;
        color: var(--blue-600);
        display: flex;
        align-items: center;
        gap: 10px;
    }
    
    .notice-icon { font-size: 16px; flex-shrink: 0; }
    
    /* ── 카드 공통 ───────────────────────────────────────── */
    .card {
        background: var(--glass);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border: 1.5px solid var(--glass-border);
        border-radius: var(--radius-lg);
        padding: 28px 28px 24px;
        box-shadow: var(--glass-shadow);
    }
    
    .card-title {
        font-size: 17px;
        font-weight: 700;
        color: var(--blue-800);
        margin-bottom: 20px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--blue-100);
    }
    
    /* ── 입력 폼 ────────────────────────────────────────── */
    .form-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 18px 24px;
    }
    
    .form-group {
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    
    /* 시장구분은 전체 너비 */
    .form-group:nth-child(2) {
        grid-column: 1 / -1;
    }
    
    .form-label {
        font-size: 13px;
        font-weight: 600;
        color: var(--text-secondary);
        letter-spacing: 0.02em;
    }
    
    .required { color: var(--accent-red); }
    
    .form-control {
        height: 46px;
        padding: 0 14px;
        border: 1.5px solid var(--blue-200);
        border-radius: var(--radius-sm);
        background: rgba(255, 255, 255, 0.85);
        font-family: var(--font);
        font-size: 15px;
        font-weight: 500;
        color: var(--text-primary);
        transition: border-color 0.2s, box-shadow 0.2s;
        outline: none;
        width: 100%;
    }
    
    .form-control:focus {
        border-color: var(--blue-400);
        box-shadow: 0 0 0 3px rgba(91, 163, 224, 0.20);
        background: #fff;
    }
    
    .form-hint {
        font-size: 11.5px;
        color: var(--text-muted);
        margin-top: 2px;
    }
    
    .input-unit-wrap {
        position: relative;
    }
    
    .input-unit-wrap .form-control {
        padding-right: 38px;
        text-align: right;
    }
    
    .input-unit {
        position: absolute;
        right: 12px;
        top: 50%;
        transform: translateY(-50%);
        font-size: 13px;
        font-weight: 600;
        color: var(--text-muted);
        pointer-events: none;
    }
    
    /* ── 시장 탭 ────────────────────────────────────────── */
    .market-tabs {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
    
    .market-tabs-row {
        display: flex;
        gap: 8px;
    }
    
    .market-tabs-row .market-tab {
        flex: 1;
    }
    
    .market-tab {
        padding: 11px 6px;
        border: 1.5px solid var(--blue-200);
        border-radius: var(--radius-sm);
        background: rgba(255,255,255,0.7);
        font-family: var(--font);
        font-size: 14px;
        font-weight: 700;
        color: var(--blue-800);
        cursor: pointer;
        text-align: center;
        line-height: 1.35;
        transition: all 0.18s;
        white-space: nowrap;
    }
    
    .market-tab:hover {
        border-color: var(--blue-400);
        color: var(--blue-600);
        background: var(--blue-100);
    }
    
    .market-tab.active {
        background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
        border-color: var(--blue-600);
        color: #fff;
        font-weight: 800;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
        box-shadow: 0 4px 12px rgba(59, 130, 196, 0.40);
    }
    
    /* ── 세율 미리보기 ──────────────────────────────────── */
    .rate-preview {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        margin: 20px 0 24px;
        padding: 14px 20px;
        background: var(--blue-100);
        border-radius: var(--radius-md);
        flex-wrap: wrap;
    }
    
    .rate-chip {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 3px;
        background: rgba(255,255,255,0.8);
        border-radius: var(--radius-sm);
        padding: 10px 18px;
        min-width: 100px;
        border: 1px solid var(--blue-200);
    }
    
    .rate-chip.rate-total {
        background: linear-gradient(135deg, var(--blue-500), var(--blue-400));
        border-color: var(--blue-500);
        box-shadow: 0 4px 12px rgba(59, 130, 196, 0.25);
    }
    
    .rate-chip.rate-total .rate-label,
    .rate-chip.rate-total .rate-value {
        color: #fff;
    }
    
    .rate-label {
        font-size: 11px;
        font-weight: 600;
        color: var(--text-muted);
        letter-spacing: 0.03em;
    }
    
    .rate-value {
        font-size: 18px;
        font-weight: 800;
        color: var(--blue-600);
        letter-spacing: -0.3px;
    }
    
    .rate-plus {
        font-size: 20px;
        font-weight: 700;
        color: var(--text-muted);
        margin: 0 2px;
    }
    
    /* ── 버튼 ───────────────────────────────────────────── */
    .btn-row {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
    }
    
    .btn {
        padding: 13px 22px;
        border: none;
        border-radius: var(--radius-sm);
        font-family: var(--font);
        font-size: 14px;
        font-weight: 700;
        cursor: pointer;
        transition: all 0.18s;
        letter-spacing: 0.01em;
    }
    
    .btn-primary {
        background: linear-gradient(135deg, var(--blue-800), var(--blue-600));
        color: #fff;
        box-shadow: 0 4px 14px rgba(26, 74, 138, 0.35);
        flex: 1;
        min-width: 120px;
    }
    
    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(26, 74, 138, 0.45);
    }
    
    .btn-secondary {
        background: linear-gradient(135deg, var(--accent-green), #3a9970);
        color: #fff;
        box-shadow: 0 4px 14px rgba(76, 175, 138, 0.30);
        flex: 1;
        min-width: 120px;
    }
    
    .btn-secondary:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(76, 175, 138, 0.40);
    }
    
    .btn-ghost {
        background: rgba(255,255,255,0.7);
        color: var(--text-secondary);
        border: 1.5px solid var(--blue-200);
    }
    
    .btn-ghost:hover {
        background: var(--blue-100);
        border-color: var(--blue-400);
        color: var(--blue-600);
    }
    
    .btn-sm {
        padding: 8px 14px;
        font-size: 12.5px;
    }
    
    .btn-danger {
        background: rgba(224, 91, 91, 0.12);
        color: var(--accent-red);
        border: 1.5px solid rgba(224, 91, 91, 0.30);
    }
    
    .btn-danger:hover {
        background: rgba(224, 91, 91, 0.20);
    }
    
    /* ── 결과 카드 ──────────────────────────────────────── */
    .result-card {
        border-left: 4px solid var(--blue-500);
        animation: slideIn 0.3s ease;
    }
    
    @keyframes slideIn {
        from { opacity: 0; transform: translateY(10px); }
        to   { opacity: 1; transform: translateY(0); }
    }
    
    .result-grid {
        display: flex;
        flex-direction: column;
        gap: 0;
    }
    
    .result-row {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 13px 0;
        border-bottom: 1px solid var(--blue-100);
    }
    
    .result-row:last-child { border-bottom: none; }
    
    .result-label {
        font-size: 14px;
        font-weight: 500;
        color: var(--text-secondary);
    }
    
    .result-value {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-primary);
        font-variant-numeric: tabular-nums;
    }
    
    .result-value.tax { color: var(--accent-red); }
    .result-value.net { color: var(--accent-green); }
    
    .total-row {
        background: var(--blue-100);
        border-radius: var(--radius-sm);
        padding: 14px 16px !important;
        margin: 6px 0;
        border-bottom: none !important;
    }
    
    .total-row .result-label {
        font-size: 15px;
        font-weight: 700;
        color: var(--blue-800);
    }
    
    .result-value.highlight {
        font-size: 20px;
        color: var(--blue-800);
        font-weight: 800;
    }
    
    .result-note {
        margin-top: 10px;
        font-size: 12px;
        color: var(--text-muted);
        text-align: right;
    }
    
    /* ── 거래 내역 ──────────────────────────────────────── */
    .history-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 0;
    }
    
    .history-header .card-title { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
    
    .history-actions {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }
    
    /* 카드 안에서 헤더 뒤에 border 붙이기 */
    .history-card {
        padding-top: 22px;
    }
    
    .history-card .history-header {
        padding-bottom: 14px;
        border-bottom: 2px solid var(--blue-100);
        margin-bottom: 18px;
    }
    
    .table-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .history-table {
        width: 100%;
        border-collapse: collapse;
        font-size: 13px;
        min-width: 760px;
    }
    
    .history-table th {
        background: var(--blue-100);
        color: var(--blue-800);
        font-weight: 700;
        padding: 10px 10px;
        text-align: right;
        white-space: nowrap;
        border-bottom: 2px solid var(--blue-200);
    }
    
    .history-table th:first-child,
    .history-table th:nth-child(2),
    .history-table th:nth-child(3) { text-align: left; }
    
    .history-table td {
        padding: 11px 10px;
        text-align: right;
        border-bottom: 1px solid var(--blue-100);
        color: var(--text-primary);
        font-variant-numeric: tabular-nums;
        vertical-align: middle;
    }
    
    .history-table td:first-child,
    .history-table td:nth-child(2),
    .history-table td:nth-child(3) { text-align: left; }
    
    .history-table tbody tr:hover { background: rgba(91,163,224,0.07); }
    
    .td-tax { color: var(--accent-red); }
    .td-net { color: var(--accent-green); font-weight: 600; }
    
    .delete-btn {
        background: none;
        border: none;
        cursor: pointer;
        font-size: 15px;
        color: var(--accent-red);
        opacity: 0.6;
        padding: 4px 8px;
        border-radius: 6px;
        transition: opacity 0.15s;
    }
    
    .delete-btn:hover { opacity: 1; background: rgba(224,91,91,0.1); }
    
    /* 합계 행 */
    .history-table tfoot tr {
        background: linear-gradient(135deg, rgba(59,130,196,0.10), rgba(91,163,224,0.08));
    }
    
    .history-table tfoot td {
        font-weight: 700;
        font-size: 13.5px;
        color: var(--blue-800);
        border-top: 2px solid var(--blue-300, #88c0e8);
        border-bottom: none;
    }
    
    .history-table tfoot .td-tax { color: var(--accent-red); font-weight: 700; }
    .history-table tfoot .td-net { color: var(--accent-green); font-weight: 700; }
    
    /* 시장 배지 */
    .market-badge {
        display: inline-block;
        padding: 2px 8px;
        border-radius: 20px;
        font-size: 11px;
        font-weight: 700;
        letter-spacing: 0.03em;
        white-space: nowrap;
    }
    
    .badge-KOSPI  { background: #dbeafe; color: #1d4ed8; }
    .badge-KOSDAQ { background: #dcfce7; color: #166534; }
    .badge-KONEX  { background: #fef9c3; color: #854d0e; }
    .badge-KOTC   { background: #fce7f3; color: #9d174d; }
    .badge-OTC    { background: #f1f5f9; color: #475569; }
    
    /* ── 세율 안내 ──────────────────────────────────────── */
    .rate-card { padding: 0; overflow: hidden; }
    
    .rate-toggle {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        background: none;
        border: none;
        padding: 20px 28px;
        font-family: var(--font);
        font-size: 15px;
        font-weight: 700;
        color: var(--blue-800);
        cursor: pointer;
        text-align: left;
        gap: 10px;
    }
    
    .rate-toggle:hover { background: rgba(91,163,224,0.07); }
    
    .toggle-arrow {
        font-size: 13px;
        color: var(--text-muted);
        transition: transform 0.25s;
    }
    
    .toggle-arrow.open { transform: rotate(180deg); }
    
    .rate-body {
        padding: 0 28px 24px;
        border-top: 1px solid var(--blue-100);
    }
    
    .rate-desc {
        font-size: 13.5px;
        color: var(--text-secondary);
        margin: 16px 0 14px;
        line-height: 1.7;
    }
    
    .rate-table {
        width: 100%;
        border-collapse: collapse;
        font-size: 13px;
        min-width: 500px;
    }
    
    .rate-table th {
        background: var(--blue-100);
        color: var(--blue-800);
        font-weight: 700;
        padding: 10px 14px;
        text-align: center;
        border: 1px solid var(--blue-200);
    }
    
    .rate-table td {
        padding: 10px 14px;
        text-align: center;
        border: 1px solid var(--blue-100);
        font-size: 13px;
        color: var(--text-secondary);
    }
    
    .rate-table td:first-child { font-weight: 600; color: var(--text-primary); }
    
    .rate-current { background: rgba(91,163,224,0.10); }
    .rate-current td { color: var(--blue-600) !important; }
    
    .badge-current {
        display: inline-block;
        background: var(--blue-500);
        color: #fff;
        font-size: 10px;
        font-weight: 700;
        padding: 1px 7px;
        border-radius: 10px;
        margin-left: 6px;
        vertical-align: middle;
    }
    
    .rate-notes {
        margin-top: 14px;
        padding-left: 18px;
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    
    .rate-notes li {
        font-size: 12.5px;
        color: var(--text-muted);
        line-height: 1.6;
    }
    
    /* ── 푸터 ───────────────────────────────────────────── */
    .site-footer {
        text-align: center;
        padding: 24px 20px 40px;
        font-size: 12px;
        color: var(--text-muted);
        line-height: 1.8;
    }
    
    /* ── 반응형 ────────────────────────────────────────── */
    @media (max-width: 600px) {
        .card { padding: 20px 16px; border-radius: var(--radius-md); }
        .form-grid { grid-template-columns: 1fr; }
        .form-group:nth-child(2) { grid-column: auto; }
    
        .rate-preview { padding: 12px 10px; gap: 8px; }
        .rate-chip { padding: 8px 12px; min-width: 80px; }
        .rate-value { font-size: 16px; }
    
        .market-tab { font-size: 13px; padding: 10px 4px; }
    
        .btn-row { flex-direction: column; }
        .btn-primary, .btn-secondary { flex: none; width: 100%; }
    
        .result-value.highlight { font-size: 17px; }
    
        .history-header { flex-direction: column; align-items: flex-start; }
        .rate-toggle { padding: 16px 20px; font-size: 14px; }
        .rate-body { padding: 0 20px 20px; }
    }