/**
 * UI Components Styles
 * 재사용 가능한 UI 컴포넌트 스타일
 */

/* ========================================
   1. 토스트 알림
   ======================================== */

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.toast {
    min-width: 320px;
    max-width: 500px;
    padding: 16px 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    pointer-events: all;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-success {
    border-left: 4px solid #10b981;
}

.toast-error {
    border-left: 4px solid #ef4444;
}

.toast-warning {
    border-left: 4px solid #f59e0b;
}

.toast-info {
    border-left: 4px solid #3b82f6;
}

.toast > i:first-child {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.toast-success > i:first-child {
    color: #10b981;
}

.toast-error > i:first-child {
    color: #ef4444;
}

.toast-warning > i:first-child {
    color: #f59e0b;
}

.toast-info > i:first-child {
    color: #3b82f6;
}

.toast-message {
    flex: 1;
    color: #111827;
    font-weight: 500;
    line-height: 1.5;
}

.toast-close {
    background: none;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    padding: 4px;
    transition: all 0.3s;
    flex-shrink: 0;
}

.toast-close:hover {
    color: #111827;
    transform: scale(1.2);
}

/* ========================================
   2. 폼 검증 스타일
   ======================================== */

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #ef4444 !important;
    background-color: #fef2f2;
}

.form-group input.success,
.form-group select.success,
.form-group textarea.success {
    border-color: #10b981 !important;
    background-color: #ecfdf5;
}

.field-error {
    display: none;
    margin-top: 8px;
    padding: 8px 12px;
    background-color: #fef2f2;
    border-left: 4px solid #ef4444;
    border-radius: 4px;
    color: #991b1b;
    font-size: 0.875rem;
    align-items: center;
    gap: 8px;
    animation: slideDown 0.3s ease-out;
}

.field-error i {
    flex-shrink: 0;
}

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

/* ========================================
   3. 버튼 개선
   ======================================== */

.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    font-family: 'Noto Sans KR', sans-serif;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

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

.btn-secondary {
    background-color: #f3f4f6;
    color: #374151;
}

.btn-secondary:hover {
    background-color: #e5e7eb;
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

/* 버튼 로딩 상태 */
.btn.loading {
    pointer-events: none;
    opacity: 0.8;
}

.btn.loading i.fa-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.btn.success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.btn.error {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

/* 버튼 아이콘 애니메이션 */
.btn i.fa-arrow-right {
    transition: transform 0.3s;
}

.btn:hover i.fa-arrow-right {
    transform: translateX(4px);
}

.btn:disabled {
    background: #9ca3af !important;
    cursor: not-allowed;
    transform: none !important;
    opacity: 0.6;
}

/* ========================================
   4. 모달/다이얼로그
   ======================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s;
    backdrop-filter: blur(4px);
}

.modal-overlay.show {
    opacity: 1;
}

.modal-container {
    background: white;
    border-radius: 16px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s;
}

.modal-overlay.show .modal-container {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid #e5e7eb;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    color: #111827;
    font-weight: 700;
}

.modal-body {
    padding: 24px;
    color: #374151;
    line-height: 1.6;
    overflow-y: auto;
    max-height: 60vh;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.modal-footer .btn {
    min-width: 100px;
}

/* ========================================
   5. 툴팁
   ======================================== */

.tooltip {
    position: fixed;
    background-color: #1f2937;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.875rem;
    z-index: 10001;
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: all 0.2s;
    max-width: 250px;
    line-height: 1.4;
}

.tooltip.show {
    opacity: 1;
    transform: translateY(0);
}

.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #1f2937;
}

/* ========================================
   6. Progress Bar 개선
   ======================================== */

.progress-bar-wrapper {
    position: relative;
    background: white;
    padding: 32px 40px;
    border-bottom: 2px solid #e5e7eb;
}

.progress-track {
    position: absolute;
    top: 50%;
    left: 40px;
    right: 40px;
    height: 4px;
    background: #e5e7eb;
    transform: translateY(-50%);
    z-index: 0;
    border-radius: 2px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #10b981 0%, #3b82f6 100%);
    border-radius: 2px;
    transition: width 0.6s cubic-bezier(0.65, 0, 0.35, 1);
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.3), 
        transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-steps {
    display: flex;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.step-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    border: 3px solid #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
    color: #9ca3af;
    transition: all 0.3s;
    position: relative;
}

.progress-step.completed .step-circle {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-color: #10b981;
    color: white;
    animation: bounceIn 0.5s;
}

.progress-step.active .step-circle {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-color: #3b82f6;
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7);
    }
    50% {
        box-shadow: 0 0 0 12px rgba(59, 130, 246, 0);
    }
}

@keyframes bounceIn {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.step-label {
    font-size: 0.875rem;
    color: #9ca3af;
    font-weight: 500;
    text-align: center;
    transition: all 0.3s;
}

.progress-step.completed .step-label,
.progress-step.active .step-label {
    color: #111827;
    font-weight: 600;
}

/* ========================================
   7. 카드 개선
   ======================================== */

.card-enhanced {
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
    border: 1px solid transparent;
}

.card-enhanced:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
    border-color: #e5e7eb;
}

/* ========================================
   8. 배지
   ======================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1;
}

.badge-required {
    background-color: #fecaca;
    color: #991b1b;
}

.badge-optional {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-premium {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
}

.badge-new {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
}

/* ========================================
   9. 스크롤 애니메이션
   ======================================== */

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.animate-on-scroll.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   10. 로딩 스피너
   ======================================== */

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9998;
    backdrop-filter: blur(4px);
}

.loading-content {
    background: white;
    padding: 32px;
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.loading-content .loading-spinner {
    width: 48px;
    height: 48px;
    border-width: 4px;
    border-top-color: #3b82f6;
}

/* ========================================
   11. 모바일 반응형
   ======================================== */

@media (max-width: 768px) {
    .toast-container {
        top: 10px;
        right: 10px;
        left: 10px;
    }
    
    .toast {
        min-width: auto;
        width: 100%;
    }
    
    .modal-container {
        width: 95%;
        margin: 10px;
    }
    
    .progress-bar-wrapper {
        padding: 20px 16px;
    }
    
    .progress-steps {
        gap: 4px;
    }
    
    .step-circle {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .step-label {
        font-size: 0.75rem;
        max-width: 70px;
    }
    
    .btn {
        width: 100%;
    }
    
    .modal-footer {
        flex-direction: column-reverse;
    }
    
    .modal-footer .btn {
        width: 100%;
    }
}

/* ========================================
   12. 다크모드 지원
   ======================================== */

@media (prefers-color-scheme: dark) {
    .toast,
    .modal-container,
    .card-enhanced {
        background-color: #1f2937;
        color: #e5e7eb;
    }
    
    .toast-message,
    .modal-body {
        color: #e5e7eb;
    }
    
    .modal-header {
        border-bottom-color: #374151;
    }
    
    .modal-footer {
        border-top-color: #374151;
    }
    
    .btn-secondary {
        background-color: #374151;
        color: #e5e7eb;
    }
    
    .btn-secondary:hover {
        background-color: #4b5563;
    }
    
    .progress-bar-wrapper {
        background-color: #1f2937;
        border-bottom-color: #374151;
    }
    
    .step-circle {
        background-color: #1f2937;
        border-color: #4b5563;
    }
    
    .progress-step.completed .step-label,
    .progress-step.active .step-label {
        color: #e5e7eb;
    }
}

/* ========================================
   13. 접근성 개선
   ======================================== */

.btn:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid #3b82f6;
    outline-offset: 2px;
}

.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;
}

/* ========================================
   14. 프린트 스타일
   ======================================== */

@media print {
    .toast-container,
    .modal-overlay,
    .btn,
    .tooltip {
        display: none !important;
    }
}