/* ========================================
   Calculator Page — 세금 계산기
   ======================================== */

/* --- Page Layout --- */
.calc-page {
    background: #0B1120;
    min-height: 100vh;
    font-family: var(--font-family);
    color: #E2E8F0;
}

/* --- Hero --- */
.calc-hero {
    padding: 140px 0 48px;
    text-align: center;
    background: linear-gradient(180deg, #0F172A 0%, #0B1120 100%);
    position: relative;
    overflow: hidden;
}

.calc-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.calc-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.25);
    color: #6EE7B7;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 9999px;
    margin-bottom: 20px;
}

.calc-hero h1 {
    font-size: 38px;
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: -0.025em;
    margin-bottom: 12px;
}

.calc-hero p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
}

/* --- Tab Navigation --- */
.calc-tabs {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px 32px;
}

.calc-tab-list {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
}

.calc-tab-list::-webkit-scrollbar {
    display: none;
}

.calc-tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    font-family: var(--font-family);
}

.calc-tab:hover {
    border-color: rgba(16, 185, 129, 0.3);
    color: rgba(255, 255, 255, 0.8);
    background: rgba(16, 185, 129, 0.08);
}

.calc-tab.active {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.4);
    color: #6EE7B7;
    font-weight: 600;
}

.calc-tab i {
    font-size: 14px;
}

/* --- Calculator Content --- */
.calc-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px 64px;
}

.calc-panel {
    display: none;
}

.calc-panel.active {
    display: block;
    animation: calcFadeIn 0.3s ease-out;
}

@keyframes calcFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Layout: Form + Result --- */
.calc-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

/* --- Form Card --- */
.calc-form-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 32px;
}

.calc-form-title {
    font-size: 20px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 8px;
}

.calc-form-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 28px;
}

/* Form Groups */
.calc-field {
    margin-bottom: 20px;
}

.calc-field:last-child {
    margin-bottom: 0;
}

.calc-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
}

.calc-label-hint {
    font-weight: 400;
    color: rgba(255, 255, 255, 0.3);
    font-size: 12px;
    margin-left: 6px;
}

.calc-input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: #FFFFFF;
    font-size: 15px;
    font-family: var(--font-family);
    transition: all 0.2s;
    outline: none;
    box-sizing: border-box;
}

.calc-input:focus {
    border-color: rgba(16, 185, 129, 0.5);
    background: rgba(255, 255, 255, 0.07);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.calc-input::placeholder {
    color: rgba(255, 255, 255, 0.25);
}

.calc-input-suffix {
    position: relative;
}

.calc-input-suffix input {
    padding-right: 40px;
}

.calc-input-suffix span {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
    pointer-events: none;
}

.calc-select {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: #FFFFFF;
    font-size: 15px;
    font-family: var(--font-family);
    cursor: pointer;
    outline: none;
    transition: all 0.2s;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='rgba(255,255,255,0.4)' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.calc-select:focus {
    border-color: rgba(16, 185, 129, 0.5);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1);
}

.calc-select option {
    background: #1E293B;
    color: #E2E8F0;
}

/* Radio Group */
.calc-radio-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.calc-radio {
    position: relative;
}

.calc-radio input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.calc-radio label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.calc-radio input:checked + label {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.4);
    color: #6EE7B7;
    font-weight: 600;
}

.calc-radio label:hover {
    border-color: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.7);
}

/* Checkbox */
.calc-check {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.calc-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #10B981;
    cursor: pointer;
}

.calc-check span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* Calculate Button */
.calc-btn {
    width: 100%;
    padding: 14px 24px;
    background: #10B981;
    color: #FFFFFF;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-family);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 28px;
}

.calc-btn:hover {
    background: #059669;
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.25);
    transform: translateY(-1px);
}

.calc-btn:active {
    transform: translateY(0);
}

/* --- Result Card --- */
.calc-result-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 32px;
    position: sticky;
    top: 96px;
}

.calc-result-title {
    font-size: 16px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.calc-result-title i {
    color: #10B981;
}

/* Result Empty */
.calc-result-empty {
    text-align: center;
    padding: 48px 0;
}

.calc-result-empty-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: rgba(255, 255, 255, 0.15);
}

.calc-result-empty h3 {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 8px;
}

.calc-result-empty p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.25);
}

/* Result Summary */
.calc-result-main {
    text-align: center;
    padding: 24px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    margin-bottom: 24px;
}

.calc-result-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 8px;
}

.calc-result-amount {
    font-size: 36px;
    font-weight: 800;
    color: #10B981;
    letter-spacing: -0.02em;
}

.calc-result-amount small {
    font-size: 18px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.4);
    margin-left: 4px;
}

/* Result Rows */
.calc-result-rows {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.calc-result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
}

.calc-result-row-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    display: flex;
    align-items: center;
    gap: 6px;
}

.calc-result-row-label i {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.25);
}

.calc-result-row-value {
    font-size: 15px;
    font-weight: 600;
    color: #FFFFFF;
}

.calc-result-row.highlight {
    padding: 14px 16px;
    background: rgba(16, 185, 129, 0.08);
    border-radius: 10px;
    margin-top: 4px;
}

.calc-result-row.highlight .calc-result-row-label {
    color: #6EE7B7;
    font-weight: 600;
}

.calc-result-row.highlight .calc-result-row-value {
    color: #10B981;
    font-weight: 700;
    font-size: 17px;
}

/* Result Divider */
.calc-result-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.06);
    margin: 4px 0;
}

/* Result Note */
.calc-result-note {
    margin-top: 20px;
    padding: 14px 16px;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.15);
    border-radius: 10px;
    font-size: 12px;
    color: rgba(245, 158, 11, 0.8);
    line-height: 1.6;
    display: flex;
    gap: 8px;
}

.calc-result-note i {
    flex-shrink: 0;
    margin-top: 2px;
}

/* CTA */
.calc-cta {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.calc-cta-btn {
    width: 100%;
    padding: 12px 0;
    background: var(--primary);
    color: #FFFFFF;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-family);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.calc-cta-btn:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* --- Info Cards --- */
.calc-info-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px 64px;
}

.calc-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.calc-info-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.2s;
}

.calc-info-card:hover {
    border-color: rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
}

.calc-info-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 16px;
}

.calc-info-icon.green {
    background: rgba(16, 185, 129, 0.12);
    color: #6EE7B7;
}

.calc-info-icon.blue {
    background: rgba(37, 99, 235, 0.12);
    color: #93B4FF;
}

.calc-info-icon.yellow {
    background: rgba(245, 158, 11, 0.12);
    color: #FCD34D;
}

.calc-info-card h3 {
    font-size: 15px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 8px;
}

.calc-info-card p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    line-height: 1.6;
}

/* --- Responsive --- */
@media (max-width: 1023px) {
    .calc-layout {
        grid-template-columns: 1fr;
    }

    .calc-result-card {
        position: static;
    }

    .calc-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .calc-hero h1 {
        font-size: 30px;
    }
}

@media (max-width: 767px) {
    .calc-hero {
        padding: 110px 0 32px;
    }

    .calc-hero h1 {
        font-size: 24px;
    }

    .calc-hero p {
        font-size: 14px;
    }

    .calc-form-card,
    .calc-result-card {
        padding: 24px;
    }

    .calc-result-amount {
        font-size: 28px;
    }

    .calc-info-grid {
        grid-template-columns: 1fr;
    }

    .calc-tab-list {
        gap: 4px;
    }

    .calc-tab {
        padding: 10px 14px;
        font-size: 13px;
    }
}