/* === COMPONENT STYLES ===
   재사용 가능한 UI 컴포넌트들의 스타일을 정의합니다. */

/* === 버튼 === */
.btn {
    cursor: pointer;
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--text-light);
    background: var(--primary-strong);
    border: var(--pixel-border);
    padding: 0.9rem 1.4rem;
    box-shadow: 0.3rem 0.3rem 0 var(--border-strong);
    transition:
        transform 120ms ease,
        box-shadow 120ms ease,
        background-color 140ms ease,
        filter 140ms ease;
    font-size: 1.4rem;
    white-space: nowrap;
    border-radius: var(--radius-sm);
}

.btn:hover {
    background: var(--primary);
    transform: translate(-0.1rem, -0.1rem);
    box-shadow: 0.4rem 0.4rem 0 var(--border-strong);
    filter: brightness(1.08);
}

.btn:active {
    transform: translate(0.3rem, 0.3rem);
    box-shadow: 0.1rem 0.1rem 0 var(--border-strong);
}

.btn:disabled {
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-dark); /* 크림색 - 비활성 상태 */
    cursor: not-allowed;
    border-color: #000000; /* 검은색 외곽선 유지 */
    box-shadow: none;
    transform: none;
}

/* === 탭별 복사 버튼 === */
.copy-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    margin-left: auto;
    font-size: 1.1rem;
    padding: 0.6rem 1rem;
    font-weight: 800;
    background: var(--primary);
    border: var(--pixel-border);
    color: var(--text-light); /* 크림색 텍스트 */
    box-shadow: 0.25rem 0.25rem 0 var(--border-strong);
    vertical-align: middle;
    text-shadow: none; /* 텍스트 그림자 제거 */
    position: relative;
    overflow: visible;
    cursor: pointer;
    transition: transform 0.1s ease;
    border-radius: 0; /* 평면 형태 */
}

.copy-tab-btn:hover {
    background: var(--primary);
    border-color: #000000;
    box-shadow: 0.4rem 0.4rem 0 var(--border-strong);
    transform: translate(-0.1rem, -0.1rem);
    color: var(--text-light);
}

.copy-tab-btn:active {
    transform: translate(0.2rem, 0.2rem);
    box-shadow: 0.1rem 0.1rem 0 var(--border-strong);
}

.copy-tab-btn.loading {
    background: linear-gradient(
        90deg,
        var(--primary) 0%,
        #fca5a5 50%,
        var(--primary) 100%
    ) !important;
    animation: none;
}

/* === 카드 스타일 === */
.card {
    background: var(--surface);
    border: var(--pixel-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    box-shadow: var(--shadow-soft);
}

/* === 배지 === */
.badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: var(--accent);
    color: var(--bg-dark);
    border-radius: 0;
    font-size: 1.2rem;
    font-weight: 700;
    border: 0.2rem solid var(--border-strong);
    box-shadow: 0.2rem 0.2rem 0 var(--border-strong);
}

.badge.success {
    background: var(--correct);
    color: var(--bg-dark);
}

.badge.error {
    background: var(--incorrect);
}

.badge.warning {
    background: var(--retrying);
    color: var(--bg-dark);
}

/* === 알림 === */
.alert {
    padding: var(--space-md);
    border-radius: 0;
    margin-bottom: var(--space-md);
    border: var(--pixel-border);
    box-shadow: 0.3rem 0.3rem 0 var(--border-strong);
}

.alert.info {
    background: rgba(95, 159, 203, 0.14);
    border-color: var(--revealed);
    color: var(--revealed);
}

.alert.success {
    background: rgba(57, 255, 20, 0.1);
    border-color: var(--correct);
    color: var(--correct);
}

.alert.error {
    background: rgba(255, 87, 51, 0.1);
    border-color: var(--incorrect);
    color: var(--incorrect);
}

.alert.warning {
    background: rgba(255, 195, 0, 0.1);
    border-color: var(--retrying);
    color: var(--retrying);
}

/* === 로딩 스피너 === */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--secondary);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* === 버튼 로딩 상태 === */
.btn.loading {
    position: relative;
    pointer-events: none;
    background: linear-gradient(
        90deg,
        var(--primary) 0%,
        #fca5a5 50%,
        var(--primary) 100%
    ) !important;
    border-color: var(--primary) !important;
    color: white !important;
    transition: none !important; /* 즉시 전환 */
    overflow: hidden;
}

.btn.loading .btn-text {
    visibility: hidden; /* 텍스트 완전히 숨김 */
}

.btn.loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: loadingBar 1.15s ease-in-out infinite;
    z-index: 5;
}

.btn.loading::after {
    content: '로딩중...';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 14px;
    font-weight: bold;
    color: white;
    text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.3);
    z-index: 10;
    animation: loadingText 1.15s ease-in-out infinite;
}

/* 로딩바 애니메이션 */
@keyframes loadingBar {
    0% {
        left: -100%;
    }
    50% {
        left: 0%;
    }
    100% {
        left: 100%;
    }
}

@keyframes loadingText {
    0%,
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1.05);
    }
}

@keyframes retroSpin {
    0% {
        transform: rotate(0deg) scale(1);
    }
    25% {
        transform: rotate(90deg) scale(1.1);
    }
    50% {
        transform: rotate(180deg) scale(1);
    }
    75% {
        transform: rotate(270deg) scale(0.9);
    }
    100% {
        transform: rotate(360deg) scale(1);
    }
}

/* 로딩 오버레이 스타일 제거 - 버튼에만 로딩 표시 */

/* === 토글 스위치 === */
.toggle {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle .slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--secondary);
    transition: none;
    border-radius: 0;
    border: var(--pixel-border);
    box-shadow: 0.2rem 0.2rem 0 var(--border-strong);
}

.toggle .slider:before {
    position: absolute;
    content: '';
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: var(--text-light);
    transition: none;
    border-radius: 0;
}

.toggle input:checked + .slider {
    background-color: var(--primary);
}

.toggle input:checked + .slider:before {
    transform: translateX(22px);
}

/* === 툴팁 === */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 200px;
    background-color: var(--bg-dark);
    color: var(--text-light);
    text-align: center;
    border-radius: 0;
    padding: var(--space-sm);
    border: var(--pixel-border);
    box-shadow: 0.3rem 0.3rem 0 var(--border-strong);
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}