/* 모달 오버레이 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* API 키 변경 카드 */
.api-key-card {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    border: 1px solid #475569;
    border-radius: 0.75rem;
    padding: 2rem;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: scale(0.9) translateY(20px);
    transition: all 0.3s ease;
    position: relative;
}

.modal-overlay.active .api-key-card {
    transform: scale(1) translateY(0);
}

.modal-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #475569;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.close-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #e2e8f0;
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid #475569;
    border-radius: 0.375rem;
    color: white;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    backdrop-filter: blur(4px);
}

.form-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background: rgba(30, 41, 59, 0.7);
}

.form-input::placeholder {
    color: #64748b;
}

.button-row {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary {
    background: rgba(71, 85, 105, 0.5);
    color: #e2e8f0;
    border-color: #475569;
}

.btn-secondary:hover {
    background: rgba(71, 85, 105, 0.7);
    border-color: #64748b;
}

.btn-primary {
    background: linear-gradient(to right, #3b82f6, #2563eb);
    color: white;
    border-color: #3b82f6;
}

.btn-primary:hover {
    background: linear-gradient(to right, #2563eb, #1d4ed8);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 성공/에러 메시지 */
.message {
    padding: 0.75rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    display: none;
}

.message.success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #86efac;
}

.message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.message.show {
    display: block;
}

/* 키 표시/숨김 토글 */
.input-wrapper {
    position: relative;
}

.toggle-visibility {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 0.25rem;
    transition: color 0.2s ease;
}

.toggle-visibility:hover {
    color: #e2e8f0;
}

.toggle-visibility svg {
    width: 1rem;
    height: 1rem;
}

/* 반응형 */
@media (max-width: 768px) {
    .api-key-card {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .button-row {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}