/**
 * 소수점 시간 변환기 - 2컬럼 레이아웃
 * 소수점 시간 ↔ 시:분:초 양방향 변환
 */

/* ===== 2컬럼 레이아웃 (데스크탑) ===== */
.dtc-main-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 20px;
    align-items: start;
}

.dtc-input-col {
    position: sticky;
    top: 20px;
}

.dtc-result-col {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ===== 입력 섹션 ===== */
.dtc-input-section {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 16px;
    background: #fff;
    border: 1px solid #e8e4dc;
    border-radius: 12px;
}

.dtc-section-title {
    font-size: 15px;
    font-weight: 600;
    color: #2d2a26;
    display: flex;
    align-items: center;
    gap: 6px;
    padding-bottom: 8px;
    border-bottom: 1px solid #f0ede8;
}

.dtc-section-title i {
    color: #d4af37;
}

/* 소수점 입력 그룹 */
.dtc-decimal-group {
    background: #faf9f7;
    border: 1px solid #e8e4dc;
    border-radius: 8px;
    padding: 12px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.dtc-decimal-group:focus-within,
.dtc-decimal-group.active {
    border-color: #d4af37;
    box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.1);
    background: #fff;
}

.dtc-input-row {
    display: flex;
    gap: 10px;
}

.dtc-input-item {
    flex: 1;
}

.dtc-label {
    font-size: 12px;
    font-weight: 600;
    color: #5f5a56;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.dtc-label i {
    color: #d4af37;
    font-size: 12px;
}

.dtc-input-wrapper {
    position: relative;
}

.dtc-input {
    width: 100%;
    padding: 10px 36px 10px 12px;
    font-size: 16px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    border: 1px solid #e8e4dc;
    border-radius: 6px;
    background: #fff;
    color: #2d2a26;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.dtc-input:focus {
    outline: none;
    border-color: #d4af37;
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.dtc-input::placeholder {
    color: #bbb;
    font-size: 13px;
}

.dtc-unit-suffix {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 13px;
    color: #888;
    pointer-events: none;
}

/* 방향 구분선 */
.dtc-direction-divider {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 0;
}

.dtc-direction-divider::before,
.dtc-direction-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #e8e4dc;
}

.dtc-direction-icon {
    color: #d4af37;
    font-size: 16px;
}

/* 시:분:초 입력 그룹 */
.dtc-hms-group {
    background: #faf9f7;
    border: 1px solid #e8e4dc;
    border-radius: 8px;
    padding: 12px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.dtc-hms-group:focus-within,
.dtc-hms-group.active {
    border-color: #d4af37;
    box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.1);
    background: #fff;
}

.dtc-hms-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.dtc-hms-item {
    text-align: center;
}

.dtc-hms-input {
    width: 100%;
    padding: 10px 6px;
    font-size: 16px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    border: 1px solid #e8e4dc;
    border-radius: 6px;
    background: #fff;
    color: #2d2a26;
    text-align: center;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.dtc-hms-input:focus {
    outline: none;
    border-color: #d4af37;
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.dtc-hms-input::placeholder {
    color: #bbb;
    font-size: 13px;
}

/* 예시 버튼 */
.dtc-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding-top: 8px;
    border-top: 1px solid #f0ede8;
}

.dtc-example-btn {
    padding: 6px 10px;
    font-size: 12px;
    color: #5f5a56;
    background: #f5f3f0;
    border: 1px solid #e8e4dc;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.dtc-example-btn:hover {
    background: #fff;
    border-color: #d4af37;
    color: #d4af37;
}

.dtc-example-btn i {
    margin-right: 4px;
}

/* 푸터 버튼 */
.dtc-footer {
    display: flex;
    justify-content: flex-end;
    padding-top: 8px;
}

#dtcResetBtn {
    padding: 8px 16px;
    font-size: 13px;
}

/* ===== 결과 영역 ===== */

/* 대기 상태 */
.dtc-waiting {
    text-align: center;
    padding: 40px 20px;
    color: #a09a94;
    background: #faf9f7;
    border: 1px dashed #e8e4dc;
    border-radius: 12px;
}

.dtc-waiting i {
    font-size: 48px;
    margin-bottom: 12px;
    display: block;
    color: #d4d0c8;
}

.dtc-waiting p {
    margin: 0;
    font-size: 14px;
}

/* 결과 섹션 */
.dtc-result-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 메인 결과 카드 */
.dtc-result-card {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: 1px solid #fde68a;
    border-radius: 12px;
    padding: 16px 20px;
    text-align: center;
}

.dtc-result-label {
    font-size: 13px;
    color: #92400e;
    margin-bottom: 6px;
}

.dtc-result-value {
    font-size: 26px;
    font-weight: 700;
    color: #b45309;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    word-break: break-word;
}

.dtc-result-sub {
    font-size: 14px;
    color: #92400e;
    margin-top: 6px;
}

/* 상세 결과 그리드 */
.dtc-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.dtc-detail-item {
    background: #fff;
    border: 1px solid #e8e4dc;
    border-radius: 8px;
    padding: 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.dtc-detail-item:hover {
    border-color: #d4af37;
}

.dtc-detail-label {
    font-size: 13px;
    color: #5f5a56;
    display: flex;
    align-items: center;
    gap: 6px;
}

.dtc-detail-label i {
    color: #d4af37;
}

.dtc-detail-value {
    font-size: 16px;
    font-weight: 600;
    color: #2d2a26;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
}

/* 복사 성공 상태 */
.dtc-detail-item.copied {
    border-color: #22c55e;
    background: #f0fdf4;
}

.dtc-detail-item.copied .dtc-detail-label i {
    color: #22c55e;
}

/* 계산 공식 */
.dtc-formula {
    background: #f8f7f5;
    border: 1px solid #e8e4dc;
    border-radius: 8px;
    padding: 12px;
}

.dtc-formula-title {
    font-size: 12px;
    font-weight: 600;
    color: #5f5a56;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.dtc-formula-title i {
    color: #d4af37;
}

.dtc-formula-content {
    font-size: 14px;
    color: #2d2a26;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    line-height: 1.6;
}

.dtc-formula-content code {
    background: #fff;
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid #e8e4dc;
}

/* 면책 조항 */
.dtc-disclaimer {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px;
    background: rgba(108, 117, 125, 0.08);
    border-radius: 8px;
    margin-top: 12px;
}

.dtc-disclaimer i {
    color: #6c757d;
    font-size: 18px;
    flex-shrink: 0;
}

.dtc-disclaimer span {
    font-size: 14px;
    color: #5f5a56;
    line-height: 1.5;
}

/* ===== 반응형 - 태블릿 ===== */
@media (max-width: 900px) {
    .dtc-main-layout {
        grid-template-columns: 300px 1fr;
        gap: 16px;
    }
}

/* ===== 반응형 - 모바일 ===== */
@media (max-width: 768px) {
    .dtc-main-layout {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .dtc-input-col {
        position: static;
    }

    .dtc-input-row {
        flex-direction: column;
        gap: 8px;
    }

    .dtc-detail-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .dtc-result-value {
        font-size: 22px;
    }
}

/* ===== 반응형 - 작은 모바일 ===== */
@media (max-width: 480px) {
    .dtc-input-section {
        padding: 12px;
    }

    .dtc-decimal-group,
    .dtc-hms-group {
        padding: 10px;
    }

    .dtc-input,
    .dtc-hms-input {
        font-size: 15px;
        padding: 9px 10px;
    }

    .dtc-hms-row {
        gap: 6px;
    }

    .dtc-examples {
        gap: 4px;
    }

    .dtc-example-btn {
        padding: 5px 8px;
        font-size: 11px;
    }

    .dtc-result-card {
        padding: 14px 16px;
    }

    .dtc-result-value {
        font-size: 20px;
    }

    .dtc-detail-item {
        padding: 12px;
    }

    .dtc-detail-value {
        font-size: 15px;
    }
}