/* ============================================
   Widget24 - Custom Bootstrap Overrides
   ============================================ */

:root {
    --bs-primary: #6366f1;
    --bs-primary-rgb: 99, 102, 241;
    --bs-secondary: #8b5cf6;
    --bs-success: #10b981;
    --bs-danger: #ef4444;
    --bs-warning: #f59e0b;
    --bs-info: #3b82f6;
    --bs-border-radius: 0.75rem;
    --bs-border-radius-lg: 1rem;
    --bs-border-radius-xl: 1.25rem;
}

/* 버튼 border-radius 최우선 적용 - 모든 것을 덮어씀 */
*[class*="btn"],
*[class*="btn"]:hover,
*[class*="btn"]:focus,
*[class*="btn"]:active,
*[class*="btn"]:focus-visible,
*[class*="btn"]:not(:disabled):active,
*[class*="btn"]:not(:disabled):focus,
*[class*="btn"].show,
*[class*="btn"].active,
button[class*="btn"],
button[class*="btn"]:hover,
button[class*="btn"]:focus,
button[class*="btn"]:active,
button[class*="btn"]:focus-visible,
button[class*="btn"]:not(:disabled):active,
button[class*="btn"]:not(:disabled):focus,
button[class*="btn"].show,
button[class*="btn"].active,
button[class*="btn"].btn-success,
button[class*="btn"].btn-warning,
button[class*="btn"].btn-danger,
button[class*="btn"].btn-primary,
button[class*="btn"].btn-secondary,
button[class*="btn"].btn-lg,
button[class*="btn"].btn-sm,
.start-btn,
.stop-btn,
.pause-btn {
    border-radius: 0.375rem !important;
    -webkit-border-radius: 0.375rem !important;
    -moz-border-radius: 0.375rem !important;
    border-top-left-radius: 0.375rem !important;
    border-top-right-radius: 0.375rem !important;
    border-bottom-left-radius: 0.375rem !important;
    border-bottom-right-radius: 0.375rem !important;
}

.start-btn:hover,
.start-btn:focus,
.start-btn:active,
.stop-btn:hover,
.stop-btn:focus,
.stop-btn:active,
.pause-btn:hover,
.pause-btn:focus,
.pause-btn:active {
    border-radius: 0.375rem !important;
    -webkit-border-radius: 0.375rem !important;
    -moz-border-radius: 0.375rem !important;
    border-top-left-radius: 0.375rem !important;
    border-top-right-radius: 0.375rem !important;
    border-bottom-left-radius: 0.375rem !important;
    border-bottom-right-radius: 0.375rem !important;
}

body {
    padding-top: 76px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
}

/* 시간 표시 */
.time-display {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    text-align: center;
    margin: 0.5rem 0;
    line-height: 1.1;
    letter-spacing: -0.03em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    user-select: none;
}

.time-display.warning {
    color: var(--bs-danger);
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* 진행 바 */
.progress {
    height: 12px;
    border-radius: var(--bs-border-radius-lg);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 버튼 통일 디자인 - Bootstrap 기반 */
/* 모든 버튼에 대해 통일된 스타일 적용 */
button.btn,
a.btn,
input.btn,
.btn,
.preset-btn,
#startBtn,
#resetBtn,
#skipBtn,
#confirmBtn,
#plus2Btn,
#dnfBtn,
button.btn.btn-success,
button.btn.btn-warning,
button.btn.btn-danger,
button.btn.btn-primary,
button.btn.btn-secondary,
button.btn.btn-lg,
button.btn.btn-sm,
#startBtn.btn-success,
#startBtn.btn-warning,
#startBtn.btn-danger,
#startBtn.btn-primary,
#startBtn.btn-secondary,
#startBtn.btn-lg,
#startBtn.btn-sm {
    position: relative;
    overflow: hidden;
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    min-height: 52px;
    font-weight: 600;
    font-size: 1rem;
    padding: 0.625rem 1.25rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border: none;
    /* Bootstrap의 기본 border-radius 강제 유지 - 모든 모서리 개별 지정 */
    border-radius: 0.375rem !important;
    -webkit-border-radius: 0.375rem !important;
    -moz-border-radius: 0.375rem !important;
    border-top-left-radius: 0.375rem !important;
    border-top-right-radius: 0.375rem !important;
    border-bottom-left-radius: 0.375rem !important;
    border-bottom-right-radius: 0.375rem !important;
}

/* 모든 상태에서 통일된 스타일 유지 */
button.btn:hover,
a.btn:hover,
input.btn:hover,
.btn:hover,
.preset-btn:hover,
#startBtn:hover,
#resetBtn:hover,
#skipBtn:hover,
#confirmBtn:hover,
#plus2Btn:hover,
#dnfBtn:hover,
button.btn:focus,
a.btn:focus,
input.btn:focus,
.btn:focus,
.preset-btn:focus,
#startBtn:focus,
#resetBtn:focus,
#skipBtn:focus,
#confirmBtn:focus,
#plus2Btn:focus,
#dnfBtn:focus,
button.btn:active,
a.btn:active,
input.btn:active,
.btn:active,
.preset-btn:active,
#startBtn:active,
#resetBtn:active,
#skipBtn:active,
#confirmBtn:active,
#plus2Btn:active,
#dnfBtn:active,
button.btn:focus-visible,
a.btn:focus-visible,
input.btn:focus-visible,
.btn:focus-visible,
.preset-btn:focus-visible,
#startBtn:focus-visible,
#resetBtn:focus-visible,
#skipBtn:focus-visible,
#confirmBtn:focus-visible,
#plus2Btn:focus-visible,
#dnfBtn:focus-visible,
button.btn:not(:disabled):active,
a.btn:not(:disabled):active,
input.btn:not(:disabled):active,
.btn:not(:disabled):active,
.preset-btn:not(:disabled):active,
#startBtn:not(:disabled):active,
#resetBtn:not(:disabled):active,
#skipBtn:not(:disabled):active,
#confirmBtn:not(:disabled):active,
#plus2Btn:not(:disabled):active,
#dnfBtn:not(:disabled):active,
button.btn:not(:disabled):focus,
a.btn:not(:disabled):focus,
input.btn:not(:disabled):focus,
.btn:not(:disabled):focus,
.preset-btn:not(:disabled):focus,
#startBtn:not(:disabled):focus,
#resetBtn:not(:disabled):focus,
#skipBtn:not(:disabled):focus,
#confirmBtn:not(:disabled):focus,
#plus2Btn:not(:disabled):focus,
#dnfBtn:not(:disabled):focus,
button.btn.show,
a.btn.show,
input.btn.show,
.btn.show,
.preset-btn.show,
#startBtn.show,
#resetBtn.show,
#skipBtn.show,
#confirmBtn.show,
#plus2Btn.show,
#dnfBtn.show,
button.btn:first-child:active,
a.btn:first-child:active,
input.btn:first-child:active,
.btn:first-child:active,
.preset-btn:first-child:active,
#startBtn:first-child:active,
#resetBtn:first-child:active,
#skipBtn:first-child:active,
#confirmBtn:first-child:active,
#plus2Btn:first-child:active,
#dnfBtn:first-child:active,
button.btn.active,
a.btn.active,
input.btn.active,
.btn.active,
.preset-btn.active,
#startBtn.active,
#resetBtn.active,
#skipBtn.active,
#confirmBtn.active,
#plus2Btn.active,
#dnfBtn.active,
button.btn.active:focus,
a.btn.active:focus,
input.btn.active:focus,
.btn.active:focus,
.preset-btn.active:focus,
#startBtn.active:focus,
#resetBtn.active:focus,
#skipBtn.active:focus,
#confirmBtn.active:focus,
#plus2Btn.active:focus,
#dnfBtn.active:focus {
    border-radius: 0.375rem !important;
    -webkit-border-radius: 0.375rem !important;
    -moz-border-radius: 0.375rem !important;
    border-top-left-radius: 0.375rem !important;
    border-top-right-radius: 0.375rem !important;
    border-bottom-left-radius: 0.375rem !important;
    border-bottom-right-radius: 0.375rem !important;
}

/* 모든 버튼에 리플 효과 적용 */
.btn::before,
.preset-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: 0;
}

.btn:active::before,
.preset-btn:active::before {
    width: 300px;
    height: 300px;
}

.btn > *,
.preset-btn > * {
    position: relative;
    z-index: 1;
}

/* 모든 버튼에 통일된 호버/액티브 효과 */
.btn:hover:not(:disabled),
.preset-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.btn:active:not(:disabled),
.preset-btn:active:not(:disabled) {
    transform: translateY(0);
}

.btn:focus,
.btn:focus-visible,
.preset-btn:focus,
.preset-btn:focus-visible {
    outline: none !important;
    box-shadow: 0 0 0 0.25rem rgba(var(--bs-primary-rgb), 0.25) !important;
}

/* Bootstrap 버튼 크기별 통일된 디자인 */
.btn-lg,
.btn-lg:hover,
.btn-lg:active,
.btn-lg:focus,
.btn-lg:focus-visible,
.btn-lg:not(:disabled):active,
.btn-lg:not(:disabled):focus,
#startBtn.btn-lg,
#startBtn.btn-lg:hover,
#startBtn.btn-lg:active,
#startBtn.btn-lg:focus,
#startBtn.btn-lg:focus-visible,
#startBtn.btn-lg:not(:disabled):active,
#startBtn.btn-lg:not(:disabled):focus {
    border-radius: 0.5rem !important;
    -webkit-border-radius: 0.5rem !important;
    -moz-border-radius: 0.5rem !important;
    border-top-left-radius: 0.5rem !important;
    border-top-right-radius: 0.5rem !important;
    border-bottom-left-radius: 0.5rem !important;
    border-bottom-right-radius: 0.5rem !important;
    min-height: 52px;
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
    font-weight: 600;
}

.btn-sm,
.btn-sm:hover,
.btn-sm:active,
.btn-sm:focus {
    border-radius: 0.375rem !important;
    -webkit-border-radius: 0.375rem !important;
    -moz-border-radius: 0.375rem !important;
    border-top-left-radius: 0.375rem !important;
    border-top-right-radius: 0.375rem !important;
    border-bottom-left-radius: 0.375rem !important;
    border-bottom-right-radius: 0.375rem !important;
    min-height: 40px;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

/* Outline 버튼 통일 디자인 */
.btn-outline-primary,
.btn-outline-success,
.btn-outline-secondary,
.btn-outline-warning,
.btn-outline-danger,
.btn-outline-info {
    border: 2px solid;
    background-color: transparent;
    font-weight: 600;
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-outline-primary:hover,
.btn-outline-success:hover,
.btn-outline-secondary:hover,
.btn-outline-warning:hover,
.btn-outline-danger:hover,
.btn-outline-info:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.btn-outline-primary:active,
.btn-outline-success:active,
.btn-outline-secondary:active,
.btn-outline-warning:active,
.btn-outline-danger:active,
.btn-outline-info:active {
    transform: translateY(0);
}

/* 큐브 스톱워치 해결 기록 - 사용자 친화적 디자인 */
.solve-list {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    max-height: 600px;
    overflow-y: auto;
    padding: 0.25rem 0;
}

.solve-item {
    position: relative;
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.solve-item:hover {
    background-color: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: #d1d5db;
}

.solve-item.solve-best {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(16, 185, 129, 0.03));
    border-color: var(--bs-success);
    border-width: 2px;
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.15);
}

.solve-item.solve-best:hover {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(16, 185, 129, 0.06));
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.25);
    transform: translateY(-3px);
}

.solve-item.solve-worst {
    background-color: rgba(239, 68, 68, 0.04);
    border-color: rgba(239, 68, 68, 0.3);
}

.solve-item.solve-dnf {
    background-color: rgba(239, 68, 68, 0.06);
    border-color: var(--bs-danger);
    opacity: 0.9;
}

.solve-item-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    position: relative;
}

.solve-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.solve-number {
    display: flex;
    align-items: center;
}

.solve-number .badge {
    font-size: 0.65rem;
    padding: 0.2rem 0.4rem;
    font-weight: 600;
    background-color: #6b7280;
}

.solve-status {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    color: #6b7280;
}

.solve-status i {
    font-size: 0.9375rem;
}

.solve-status-text {
    font-weight: 500;
}

.solve-item.solve-best .solve-status {
    color: var(--bs-success);
}

.solve-item.solve-worst .solve-status {
    color: var(--bs-danger);
}

.solve-item-body {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.solve-time-wrapper {
    display: flex;
    align-items: baseline;
    gap: 0.375rem;
    flex-wrap: wrap;
}

.solve-time {
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    font-size: 1.375rem;
    line-height: 1.2;
    font-weight: 700;
    color: #1f2937;
}

.solve-item.solve-best .solve-time {
    font-size: 1.5rem;
    color: var(--bs-success);
}

.solve-item.solve-dnf .solve-time {
    font-size: 1.375rem;
    color: var(--bs-danger);
}

.solve-penalty-badge {
    display: flex;
    align-items: center;
}

.solve-penalty-badge .badge {
    font-size: 0.65rem;
    padding: 0.15rem 0.35rem;
    font-weight: 600;
}

.solve-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #6b7280;
}

.solve-date {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.solve-date i {
    font-size: 0.875rem;
}

.delete-solve-btn {
    position: absolute !important;
    bottom: 0.25rem !important;
    right: 0.25rem !important;
    left: auto !important;
    width: 24px !important;
    height: 24px !important;
    min-width: 24px !important;
    min-height: 24px !important;
    max-width: 24px !important;
    max-height: 24px !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    opacity: 0.4;
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0.25rem;
    font-size: 0.75rem;
}

.solve-item:hover .delete-solve-btn {
    opacity: 1;
}

.delete-solve-btn:hover {
    background-color: var(--bs-danger);
    border-color: var(--bs-danger);
    color: white;
    transform: scale(1.1);
    opacity: 1;
}

.solve-item.solve-best .bi-trophy-fill {
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.85;
        transform: scale(1.1);
    }
}

/* 반응형 */
@media (max-width: 768px) {
    .solve-time {
        font-size: 1.25rem;
    }
    
    .solve-item.solve-best .solve-time {
        font-size: 1.375rem;
    }
    
    .solve-item-content {
        gap: 0.2rem;
    }
    
    .solve-item-header {
        flex-wrap: wrap;
        gap: 0.375rem;
    }
}

/* 큐브 스톱워치 시간 표시 포커스 스타일 */
#timeDisplay:focus {
    outline: 2px solid rgba(13, 110, 253, 0.5);
    outline-offset: 4px;
    border-radius: 0.5rem;
}

#timeDisplay:focus:not(:focus-visible) {
    outline: none;
}

/* 큐브 스톱워치 시작 안내 */
#startGuide {
    border: 2px dashed #d1d5db;
    background: linear-gradient(135deg, #f8f9fa, #ffffff);
    animation: fade-in 0.3s ease-in;
}

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

#readyIndicator {
    animation: pulse-ready 1.5s ease-in-out infinite;
    border: 2px solid #0dcaf0;
}

@keyframes pulse-ready {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(13, 202, 240, 0.4);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(13, 202, 240, 0);
    }
}

/* 카드 개선 */
.card {
    border: 2px solid rgba(0, 0, 0, 0.125);
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--bs-primary), var(--bs-secondary), #ec4899);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    border-color: var(--bs-primary);
}

/* 도구 카드 */
.tool-card {
    min-height: 220px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.tool-card:hover {
    transform: translateY(-6px) scale(1.02);
}

.tool-icon {
    font-size: 56px;
    height: 90px;
    width: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #818cf8, var(--bs-secondary));
    border-radius: var(--bs-border-radius-xl);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    margin: 0 auto 1.5rem;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.tool-card:hover .tool-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* 사이드바 */
.sidebar {
    position: sticky;
    top: 90px;
    height: fit-content;
}

.sidebar .nav-link {
    border-radius: var(--bs-border-radius);
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    transition: all 200ms;
}

.sidebar .nav-link:hover {
    background-color: rgba(var(--bs-primary-rgb), 0.1);
    color: var(--bs-primary);
}

.sidebar .nav-link.active {
    background-color: var(--bs-primary);
    color: white;
}

/* 입력 필드 */
.form-control,
.form-select {
    border: 2px solid #dee2e6;
    border-radius: var(--bs-border-radius);
    padding: 0.75rem 3rem 0.75rem 0.75rem;
    min-height: 48px;
    transition: all 200ms;
}

/* Netlify 최적화: form-select 오른쪽 패딩 증가 (드롭다운 화살표와 텍스트 겹침 방지) */
.form-select {
    padding-right: 3.5rem !important;
    background-position: right 0.75rem center !important;
    background-size: 16px 12px !important;
}

.form-select-sm {
    padding-right: 3rem !important;
    background-position: right 0.5rem center !important;
}

/* Placeholder 텍스트를 더 흐리게 */
.form-control::placeholder {
    color: #9ca3af;
    opacity: 0.5;
}

.form-control::-webkit-input-placeholder {
    color: #9ca3af;
    opacity: 0.5;
}

.form-control::-moz-placeholder {
    color: #9ca3af;
    opacity: 0.5;
}

.form-control:-ms-input-placeholder {
    color: #9ca3af;
    opacity: 0.5;
}

.form-control:hover:not(:disabled),
.form-select:hover:not(:disabled) {
    border-color: #818cf8;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 4px rgba(var(--bs-primary-rgb), 0.15);
    transform: translateY(-1px);
}

/* 시간 입력 */
.time-input {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    text-align: center;
    padding: 0.75rem;
    min-height: 48px;
}

/* 프리셋 버튼 - 통일된 디자인 */
.preset-buttons {
    background-color: #f8f9fa;
    border-radius: var(--bs-border-radius);
    padding: 0.5rem;
    margin-bottom: 0.5rem;
}

.preset-btn {
    min-width: auto;
    min-height: 40px;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    font-weight: 600;
    border: 2px solid transparent;
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.preset-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

/* 사운드 컨트롤 */
.sound-controls {
    background-color: #f8f9fa;
    border-radius: var(--bs-border-radius);
    padding: 0.5rem;
    margin: 0.5rem 0;
    border: 1px solid #dee2e6;
}

/* 키보드 힌트 */
.keyboard-hint {
    background: linear-gradient(135deg, #f8f9fa, white);
    border: 2px solid #dee2e6;
    border-radius: var(--bs-border-radius);
    padding: 1.25rem;
    margin-top: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.key {
    background: linear-gradient(180deg, #4b5563, #1f2937);
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    font-size: 0.75rem;
    font-weight: 700;
    margin: 0 3px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    display: inline-block;
    min-width: 24px;
    text-align: center;
}

/* 모달 */
.modal-content {
    border-radius: var(--bs-border-radius-xl);
    border: none;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* 랩 타임 */
.laps-container {
    margin-top: 2rem;
    max-height: 300px;
    overflow-y: auto;
}

.lap-time {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    border-bottom: 1px solid #dee2e6;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
}

.lap-time:first-child {
    font-weight: 700;
    color: var(--bs-primary);
}

/* 정보 섹션 */
.info-section {
    background-color: #f8f9fa;
    padding: 4rem 0;
    margin-top: 4rem;
}

.info-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.info-section h1,
.info-section h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    color: #1f2937;
    line-height: 1.3;
}

.info-section h1:first-child,
.info-section h2:first-child {
    margin-top: 0;
}

.info-section h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #1f2937;
    line-height: 1.4;
}

.info-section h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: #1f2937;
    line-height: 1.4;
}

.info-section p {
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.info-section ul,
.info-section ol {
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    padding-left: 2rem;
    font-size: 1rem;
}

.info-section li {
    margin-bottom: 0.75rem;
}

.info-section li strong {
    color: #1f2937;
    font-weight: 600;
}

.info-section p strong {
    color: #1f2937;
    font-weight: 600;
}

.info-section code {
    background: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    font-size: 0.875rem;
    color: var(--bs-primary);
}

/* 테이블 */
.table {
    margin: 1.5rem 0;
}

.table th {
    background-color: #f8f9fa;
    font-weight: 700;
    color: #1f2937;
}

.table td {
    color: #6b7280;
}

/* 반응형 */
@media (max-width: 768px) {
    .time-display {
        font-size: clamp(3.5rem, 15vw, 6rem);
    }
    
    .btn {
        min-height: 48px;
        font-size: 1rem;
    }
    
    .time-input {
        font-size: 1.25rem;
        min-height: 56px;
    }
    
    .sidebar {
        position: static;
        margin-bottom: 2rem;
    }
    
    .tool-card {
        min-height: 200px;
    }
    
    .tool-icon {
        height: 70px;
        width: 70px;
        font-size: 48px;
    }
    
    .info-section {
        padding: 2rem 0;
    }
    
    .info-section h1,
    .info-section h2 {
        font-size: 1.75rem;
    }
    
    .info-section h3 {
        font-size: 1.25rem;
    }
    
    .info-section h4 {
        font-size: 1.125rem;
    }
}

@media (max-width: 480px) {
    .time-display {
        font-size: clamp(3rem, 18vw, 5rem);
    }
    
    .btn {
        width: 100%;
    }
    
    .info-section h1,
    .info-section h2 {
        font-size: 1.5rem;
    }
    
    .info-section h3 {
        font-size: 1.125rem;
    }
    
    .info-section h4 {
        font-size: 1rem;
    }
}

/* 애니메이션 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* 접근성 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* 카메라 화각 변환기 - 환산 결과 스타일 */
.conversion-results {
    padding: 0;
    margin-top: 32px;
}

.conversion-results .result-display {
    display: flex;
    flex-direction: column;
}

.result-comparison {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
    flex-wrap: wrap;
    order: 1;
}

.result-card {
    flex: 1;
    min-width: 300px;
    max-width: 420px;
    background: #ffffff;
    border-radius: 16px;
    padding: 32px 40px;
    border: 2px solid #f3f4f6;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.result-card.from-sensor {
    border-color: #e0e7ff;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.04) 0%, #ffffff 100%);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.08);
}

.result-card.to-sensor {
    border-color: #d1fae5;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.04) 0%, #ffffff 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.08);
}

.result-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.result-card-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid #f3f4f6;
}

.result-card.from-sensor .result-card-header {
    border-bottom-color: #e0e7ff;
}

.result-card.to-sensor .result-card-header {
    border-bottom-color: #d1fae5;
}

.result-card-header i {
    font-size: 1.5rem;
    color: var(--bs-primary);
    margin-right: var(--space-2);
}

.result-card.to-sensor .result-card-header i {
    color: var(--bs-success);
}

.result-label {
    font-size: 0.875rem;
    font-weight: 700;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.result-sensor-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: #6b7280;
    text-align: center;
    margin-bottom: 24px;
    line-height: 1.4;
    padding: 8px 0;
}

.result-focal-length-wrapper {
    text-align: center;
    margin-bottom: 24px;
    padding: 24px 0;
    background: transparent;
    border-radius: 12px;
}

.result-focal-length {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    color: var(--bs-primary);
    line-height: 1;
    text-shadow: 0 2px 12px rgba(99, 102, 241, 0.25);
    letter-spacing: -0.02em;
    word-break: break-word;
    overflow-wrap: break-word;
}

.result-focal-length.converted {
    color: var(--bs-success);
    text-shadow: 0 2px 12px rgba(16, 185, 129, 0.25);
}

/* 데이터 변환기 전용 스타일 */
.converter-data .result-focal-length {
    font-size: clamp(1.5rem, 4vw, 2.5rem) !important;
    word-break: break-all;
    overflow-wrap: anywhere;
    line-height: 1.3;
}

.result-focal-length .unit {
    font-size: 0.35em;
    font-weight: 600;
    opacity: 0.8;
    margin-left: 0.15em;
    letter-spacing: 0;
}

.result-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: auto;
    padding-top: 24px;
    border-top: 1px solid #f3f4f6;
}

.result-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: #f9fafb;
    border-radius: 8px;
    border: 1px solid #f3f4f6;
    transition: all 0.2s ease;
}

.result-detail-item:hover {
    background: #f3f4f6;
    border-color: #e5e7eb;
}

.result-detail-item i {
    color: var(--bs-primary);
    font-size: 1rem;
    margin-right: var(--space-2);
}

.result-card.to-sensor .result-detail-item i {
    color: var(--bs-success);
}

.detail-label {
    font-size: 0.8125rem;
    color: #6b7280;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.detail-value {
    font-size: 0.9375rem;
    font-weight: 700;
    color: #1f2937;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    letter-spacing: 0.02em;
}

.result-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    min-width: 120px;
    padding: var(--space-4);
    align-self: center;
}

.arrow-icon-large {
    font-size: 3rem;
    color: var(--bs-primary);
    animation: pulse 2s ease-in-out infinite;
    filter: drop-shadow(0 2px 8px rgba(99, 102, 241, 0.3));
}

.arrow-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.12) 0%, rgba(139, 92, 246, 0.12) 100%);
    border-radius: var(--bs-border-radius-lg);
    border: 2px solid rgba(99, 102, 241, 0.25);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.15);
}

.arrow-ratio {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--bs-primary);
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    letter-spacing: -0.02em;
}

.arrow-text {
    font-size: 0.75rem;
    color: #6b7280;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-explanation {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-4);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.06) 0%, rgba(139, 92, 246, 0.06) 100%);
    border-radius: var(--bs-border-radius-lg);
    border: 2px solid rgba(99, 102, 241, 0.2);
    margin-top: 0;
    margin-bottom: var(--space-5);
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.1);
    order: 2;
}

.explanation-main-box {
    text-align: center;
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--bs-border-radius);
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.explanation-formula {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-bottom: var(--space-2);
    font-size: 1.125rem;
    font-weight: 600;
}

.formula-from,
.formula-to {
    color: #4b5563;
    font-weight: 600;
    font-size: 0.9em;
}

.formula-focal {
    color: var(--bs-primary);
    font-weight: 700;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    font-size: 1.1em;
    background: rgba(99, 102, 241, 0.1);
    padding: 0.25em 0.5em;
    border-radius: 0.375rem;
}

.formula-arrow {
    color: var(--bs-primary);
    font-size: 1.5em;
    font-weight: 700;
    margin: 0 var(--space-1);
}

.formula-result {
    color: var(--bs-success);
    font-weight: 800;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    font-size: 1.2em;
    background: rgba(16, 185, 129, 0.15);
    padding: 0.25em 0.5em;
    border-radius: 0.375rem;
    border: 2px solid rgba(16, 185, 129, 0.3);
}

.explanation-text {
    font-size: 0.875rem;
    color: #4b5563;
    font-weight: 500;
    margin-top: var(--space-3);
    line-height: 1.6;
    text-align: center;
}

.explanation-text strong {
    color: #1f2937;
    font-weight: 700;
}

.explanation-korean {
    font-size: 0.875rem;
    color: #6b7280;
    font-weight: 500;
    margin-top: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px solid rgba(99, 102, 241, 0.1);
    text-align: center;
}

.explanation-korean strong {
    color: var(--bs-primary);
    font-weight: 700;
}

.explanation-sub-box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3);
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--bs-border-radius);
    border: 1px solid rgba(99, 102, 241, 0.15);
}

.explanation-sub-box i {
    color: var(--bs-primary);
    font-size: 1.125rem;
    flex-shrink: 0;
}

.explanation-sub-text {
    font-size: 0.875rem;
    color: #4b5563;
    line-height: 1.5;
    text-align: center;
}

.explanation-sub-text strong {
    color: #1f2937;
    font-weight: 700;
}

.explanation-sub-text .highlight-ratio {
    color: var(--bs-primary);
    font-weight: 800;
    font-size: 1.1em;
    background: rgba(99, 102, 241, 0.1);
    padding: 0.125em 0.375em;
    border-radius: 0.25rem;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

/* 반응형 */
@media (max-width: 768px) {
    .conversion-results .result-display {
        display: flex;
        flex-direction: column;
    }
    
    .result-explanation {
        order: 1 !important;
        margin-top: 0 !important;
        margin-bottom: var(--space-4);
        padding: var(--space-3);
        gap: var(--space-2);
    }
    
    .result-comparison {
        order: 2 !important;
        flex-direction: column;
        gap: var(--space-4);
        margin-bottom: 0;
    }
    
    .result-card {
        min-width: 100%;
        max-width: 100%;
        padding: var(--space-4) var(--space-5);
    }
    
    .result-arrow {
        transform: rotate(90deg);
        min-width: auto;
        padding: var(--space-3);
    }
    
    .arrow-icon-large {
        font-size: 2.5rem;
    }
    
    .result-focal-length {
        font-size: clamp(2rem, 8vw, 3.5rem);
    }
    
    .result-sensor-name {
        font-size: 0.9375rem;
    }
    
    .result-details {
        gap: var(--space-2);
    }
    
    .result-detail-item {
        padding: var(--space-2) var(--space-3);
    }
    
    .explanation-main-box {
        padding: var(--space-3);
    }
    
    .explanation-formula {
        font-size: 1rem;
        gap: var(--space-1);
        flex-direction: column;
        align-items: center;
    }
    
    .formula-from,
    .formula-to {
        font-size: 0.9em;
        display: block;
        margin-bottom: var(--space-1);
    }
    
    .formula-focal {
        font-size: 1.25em;
        display: block;
        margin: var(--space-2) 0;
    }
    
    .formula-arrow {
        font-size: 1.5em;
        margin: var(--space-1) 0;
    }
    
    .formula-result {
        font-size: 1.25em;
        display: block;
        margin-top: var(--space-2);
    }
    
    .explanation-text {
        font-size: 0.8125rem;
        margin-top: var(--space-3);
    }
    
    /* 모바일에서는 두 번째 박스 숨김 */
    .explanation-sub-box {
        display: none;
    }
}

/* 진법 변환기 - 진법 선택 체크박스 가로 배치 */
.base-selector {
    margin-bottom: var(--space-4);
}

.base-checkboxes {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.base-checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.base-checkbox {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
    flex-shrink: 0;
}

.base-checkbox-label {
    font-size: var(--text-base);
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
    margin: 0;
}

/* PC에서는 가로 배치 */
@media (min-width: 769px) {
    .base-checkboxes {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--space-3);
    }
    
    .base-checkbox-wrapper {
        flex: 0 0 auto;
    }
}

/* 진법 변환기 - 변환 결과 카드 스타일 */
.base-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-3);
}

.base-result-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    border: 2px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.base-result-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.base-result-card.input-card {
    border-color: var(--bs-primary);
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.05) 0%, rgba(13, 110, 253, 0.02) 100%);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.15);
}

.base-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid #e5e7eb;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
}

.base-card-header i {
    font-size: 1.125rem;
    color: var(--primary);
}

.base-card-label {
    font-weight: var(--font-semibold);
}

.base-card-name {
    font-size: var(--text-base);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-top: var(--space-1);
}

.base-card-value {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    font-family: var(--font-mono);
    word-break: break-all;
    overflow-wrap: anywhere;
    line-height: 1.3;
    margin: var(--space-2) 0;
}

.base-card-value.input-value {
    color: var(--bs-primary);
    font-size: clamp(1.75rem, 3.5vw, 2.25rem);
}

.base-card-value.converted-value {
    color: var(--bs-success);
}

.base-card-symbol {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-style: italic;
    margin-top: auto;
    padding-top: var(--space-2);
    border-top: 1px solid #f0f0f0;
}

/* 주요 진법 카드 - 은은한 강조 */
.base-result-card.main-base-card {
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.03) 0%, rgba(13, 110, 253, 0.01) 100%);
    border-color: rgba(13, 110, 253, 0.2);
}

.base-result-card.main-base-card:hover {
    border-color: rgba(13, 110, 253, 0.4);
    box-shadow: 0 4px 16px rgba(13, 110, 253, 0.15);
}

.sensor-info-card.main-base-card {
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.03) 0%, rgba(13, 110, 253, 0.01) 100%);
    border-color: rgba(13, 110, 253, 0.2);
}

.sensor-info-card.main-base-card:hover {
    border-color: rgba(13, 110, 253, 0.4);
    box-shadow: 0 4px 16px rgba(13, 110, 253, 0.15);
}

/* 가이드 섹션 주요 진법 카드 - 은은한 강조 */
.feature-card.main-base-card {
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.03) 0%, rgba(13, 110, 253, 0.01) 100%);
    border-color: rgba(13, 110, 253, 0.2);
}

.feature-card.main-base-card:hover {
    border-color: rgba(13, 110, 253, 0.4);
    box-shadow: 0 4px 16px rgba(13, 110, 253, 0.15);
}

/* 모바일 반응형 */
@media (max-width: 768px) {
    .base-results-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
    
    .base-result-card {
        padding: var(--space-3);
    }
    
    .base-card-value {
        font-size: clamp(1.25rem, 4vw, 1.75rem);
    }
    
    .base-card-value.input-value {
        font-size: clamp(1.5rem, 4.5vw, 2rem);
    }
}

/* 부동소수점 변환기 - 변환 결과 카드 스타일 */
.float-results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.float-result-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    border: 2px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    min-width: 0; /* flexbox에서 overflow 방지 */
    overflow-x: hidden; /* 가로 overflow만 방지 */
}

.float-result-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.float-result-card.input-card {
    border-color: var(--bs-primary);
    background: linear-gradient(135deg, rgba(13, 110, 253, 0.05) 0%, rgba(13, 110, 253, 0.02) 100%);
}

.float-result-card.hex-card {
    border-color: var(--bs-success);
    background: linear-gradient(135deg, rgba(25, 135, 84, 0.05) 0%, rgba(25, 135, 84, 0.02) 100%);
}

.float-result-card.binary-card {
    border-color: var(--bs-info);
    background: linear-gradient(135deg, rgba(13, 202, 240, 0.05) 0%, rgba(13, 202, 240, 0.02) 100%);
}

.float-result-card.analysis-card {
    border-color: var(--bs-warning);
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.05) 0%, rgba(255, 193, 7, 0.02) 100%);
}

.float-result-card.special-card {
    border-color: var(--bs-danger);
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.05) 0%, rgba(220, 53, 69, 0.02) 100%);
}

.float-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid #e5e7eb;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
}

.float-card-header i {
    font-size: 1.125rem;
    color: var(--primary);
}

.float-card-label {
    font-weight: var(--font-semibold);
}

.float-card-value {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    font-family: 'Courier New', 'Monaco', 'Menlo', monospace;
    word-break: break-all;
    overflow-wrap: anywhere;
    line-height: 1.4;
    margin: var(--space-2) 0;
    letter-spacing: 0.5px;
}

.float-card-value.hex-value {
    color: var(--bs-success);
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    letter-spacing: 1px;
}

.float-card-type {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-style: italic;
    margin-top: auto;
    padding-top: var(--space-2);
    border-top: 1px solid #f0f0f0;
}

/* 2진수 표시 */
.float-binary-display {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin: var(--space-2) 0;
}

.float-bit-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-3);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    border: 1px solid #e5e7eb;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    min-width: 0; /* flexbox에서 overflow 방지 */
    width: 100%;
    box-sizing: border-box;
}

.float-bit-group:has(.float-mantissa-bit) {
    max-height: 250px;
    overflow-y: auto;
    overflow-x: hidden;
    width: 100%;
}

/* 스크롤바 스타일링 */
.float-bit-group:has(.float-mantissa-bit)::-webkit-scrollbar {
    width: 8px;
}

.float-bit-group:has(.float-mantissa-bit)::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

.float-bit-group:has(.float-mantissa-bit)::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.float-bit-group:has(.float-mantissa-bit)::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

.float-bit {
    font-family: 'Courier New', 'Monaco', 'Menlo', monospace;
    font-size: clamp(0.875rem, 2vw, 1rem);
    font-weight: var(--font-bold);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius);
    display: inline-block;
    word-break: break-all;
    overflow-wrap: anywhere;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
    letter-spacing: 0.5px;
}

.float-bit.float-mantissa-bit {
    font-size: clamp(0.8125rem, 1.8vw, 0.9375rem);
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
    overflow-wrap: anywhere;
    letter-spacing: 1px;
    padding: var(--space-2);
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
}

.float-bit.float-sign-bit {
    background: rgba(220, 53, 69, 0.1);
    color: var(--bs-danger);
}

.float-bit.float-exponent-bit {
    background: rgba(13, 110, 253, 0.1);
    color: var(--bs-primary);
}

.float-bit.float-mantissa-bit {
    background: rgba(25, 135, 84, 0.1);
    color: var(--bs-success);
}

.float-bit-label {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    font-weight: var(--font-medium);
}

/* 비트 분석 */
.float-analysis {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin: var(--space-2) 0;
}

.float-analysis-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2);
    background: rgba(255, 255, 255, 0.6);
    border-radius: var(--radius);
    border: 1px solid #e5e7eb;
}

.float-analysis-item i {
    font-size: 1rem;
    color: var(--primary);
}

.float-analysis-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: var(--font-medium);
    flex: 1;
}

.float-analysis-value {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    font-family: var(--font-mono);
    word-break: break-all;
    overflow-wrap: anywhere;
    line-height: 1.6;
    white-space: nowrap;
    overflow-x: auto;
}

.float-analysis-value.float-analysis-mantissa-value {
    white-space: normal;
    word-break: break-all;
    overflow-wrap: break-word;
}

.float-special-value {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    font-weight: var(--font-bold);
    color: var(--bs-danger);
    text-align: center;
    padding: var(--space-3);
    background: rgba(220, 53, 69, 0.1);
    border-radius: var(--radius);
    margin: var(--space-2) 0;
}

/* 전체 2진수 복사 카드 */
.float-binary-copy-card {
    grid-column: 1 / -1; /* 전체 너비 사용 */
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    border: 2px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    margin-top: var(--space-2);
}

.float-binary-copy-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.float-binary-copy-header i {
    font-size: 1.125rem;
    color: var(--primary);
}

.float-binary-copy-wrapper {
    display: flex;
    gap: var(--space-2);
    align-items: center;
}

.float-binary-copy-input {
    flex: 1;
    font-family: 'Courier New', 'Monaco', 'Menlo', monospace;
    font-size: clamp(0.875rem, 2vw, 1rem);
    font-weight: var(--font-bold);
    padding: var(--space-3);
    border: 2px solid #e5e7eb;
    border-radius: var(--radius);
    background: #ffffff;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    cursor: text;
    transition: border-color 200ms;
}

.float-binary-copy-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.1);
}

.float-binary-copy-btn {
    padding: var(--space-3);
    border: 2px solid var(--primary);
    border-radius: var(--radius);
    background: var(--bs-primary);
    color: #ffffff;
    cursor: pointer;
    transition: all 200ms;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    height: 48px;
}

.float-binary-copy-btn:hover {
    background: var(--bs-primary);
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.3);
}

.float-binary-copy-btn:active {
    transform: translateY(0);
}

.float-binary-copy-btn.copied {
    background: var(--bs-success);
    border-color: var(--bs-success);
}

.float-binary-copy-btn i {
    font-size: 1.125rem;
}

/* 모바일 반응형 */
@media (max-width: 768px) {
    .float-results-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
    
    .float-result-card {
        padding: var(--space-3);
    }
    
    .float-card-value {
        font-size: clamp(1rem, 4vw, 1.5rem);
    }
    
    .float-binary-display {
        gap: var(--space-2);
    }
    
    .float-binary-copy-card {
        padding: var(--space-3);
    }
    
    .float-binary-copy-input {
        font-size: clamp(0.75rem, 3vw, 0.875rem);
        padding: var(--space-2);
    }
    
    .float-binary-copy-btn {
        min-width: 44px;
        height: 44px;
        padding: var(--space-2);
    }
}

/* 큐브 스톱워치 - 새 스크램블 버튼 크기 조정 */
#newScrambleBtn {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    line-height: 1.4;
}