/**
 * PUBG 플레이어 행동 분석 - 기본 CSS
 * Phase 1: 기능 중심, 최소한의 스타일링
 */

/* ==========================================================================
   기본 설정
   ========================================================================== */

:root {
    /* 컬러 변수 - 플레이어 유형별 */
    --survivor-color: #28a745;
    --explorer-color: #17a2b8;
    --aggressive-color: #dc3545;
    
    /* 보조 컬러 */
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --danger-color: #dc3545;
    
    /* 중성 컬러 */
    --light-bg: #f8f9fa;
    --dark-bg: #343a40;
    --border-color: #dee2e6;
    
    /* 간격 */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* 그림자 */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
}

/* 전역 스타일 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* ==========================================================================
   네비게이션
   ========================================================================== */

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: #fff !important;
}

/* ==========================================================================
   히어로 섹션
   ========================================================================== */

.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    min-height: 400px;
    display: flex;
    align-items: center;
}

.hero-section .display-4 {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-section .lead {
    opacity: 0.95;
}

.hero-section .btn {
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.hero-section .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   입력 폼 스타일
   ========================================================================== */

#analysis-section {
    background-color: var(--light-bg);
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    border-radius: 10px 10px 0 0 !important;
    border-bottom: none;
    padding: 1.25rem;
}

.card-body {
    padding: 2rem;
}

/* 폼 그룹 스타일 */
.form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 0.5rem;
}

.form-control {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* 입력 검증 스타일 */
.form-control.is-valid {
    border-color: var(--success-color);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2328a745' d='m2.3 6.73.75-.04.39-.39L7.25 2.5l-.39-.39L2.96 5.95 1.86 4.84l-.39.39.83.9z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-control.is-invalid {
    border-color: var(--danger-color);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.8 4.6 1.4 1.4 1.4-1.4M8.6 7.4l-1.4-1.4-1.4 1.4'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.invalid-feedback {
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875em;
    color: var(--danger-color);
}

/* 카테고리별 색상 구분 */
.text-primary {
    color: var(--primary-color) !important;
}

.text-success {
    color: var(--success-color) !important;
}

.text-warning {
    color: #e67e22 !important;
}

.text-info {
    color: var(--info-color) !important;
}

/* 제출 버튼 */
.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), #0056b3);
    border: none;
    border-radius: 50px;
    padding: 1rem 2.5rem;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: linear-gradient(45deg, #0056b3, var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:disabled {
    background: var(--secondary-color);
    transform: none;
    box-shadow: none;
}

/* ==========================================================================
   사이드바 스타일
   ========================================================================== */

.player-type-preview .type-item {
    padding: 0.75rem;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.player-type-preview .type-item:hover {
    background-color: rgba(0, 123, 255, 0.1);
}

.badge {
    font-size: 1rem;
    padding: 0.5rem;
    border-radius: 50%;
}

/* ==========================================================================
   결과 섹션
   ========================================================================== */

#results-section {
    background-color: var(--light-bg);
    border-top: 3px solid var(--primary-color);
}

#main-result-card {
    border: none;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
}

.player-type-result {
    padding: var(--spacing-lg);
}

.type-icon {
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.3));
}

/* 신뢰도 미터 */
.confidence-meter {
    margin: var(--spacing-lg) 0;
}

.progress {
    border-radius: 10px;
    background-color: #f8f9fa;
    overflow: hidden;
}

.progress-bar {
    border-radius: 10px;
    transition: width 0.6s ease;
}

/* 강점/약점 리스트 */
.list-unstyled li {
    padding: 0.25rem 0;
    transition: padding-left 0.3s ease;
}

.list-unstyled li:hover {
    padding-left: 0.5rem;
}

/* ==========================================================================
   상세 분석 카드
   ========================================================================== */

.style-details,
.improvement-tips {
    padding: var(--spacing-md);
}

.stats-summary {
    background-color: var(--light-bg);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-top: var(--spacing-md);
}

.stats-summary .row > div {
    padding: 0.5rem;
}

/* 타입 분포 */
.type-distribution {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

/* ==========================================================================
   버튼 스타일
   ========================================================================== */

.btn-outline-primary {
    border-radius: 50px;
    padding: 0.75rem 2rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ==========================================================================
   유틸리티 클래스
   ========================================================================== */

/* 스크롤 부드럽게 */
html {
    scroll-behavior: smooth;
}

/* 플레이어 유형별 색상 클래스 */
.survivor-color {
    color: var(--survivor-color) !important;
}

.explorer-color {
    color: var(--explorer-color) !important;
}

.aggressive-color {
    color: var(--aggressive-color) !important;
}

.survivor-bg {
    background-color: var(--survivor-color) !important;
}

.explorer-bg {
    background-color: var(--explorer-color) !important;
}

.aggressive-bg {
    background-color: var(--aggressive-color) !important;
}

/* 테두리 색상 */
.border-survivor {
    border-left: 4px solid var(--survivor-color) !important;
}

.border-explorer {
    border-left: 4px solid var(--explorer-color) !important;
}

.border-aggressive {
    border-left: 4px solid var(--aggressive-color) !important;
}

/* ==========================================================================
   반응형 디자인 (기본)
   ========================================================================== */

/* 태블릿 */
@media (max-width: 768px) {
    .hero-section {
        min-height: 300px;
        text-align: center;
    }
    
    .hero-section .display-4 {
        font-size: 2rem;
    }
    
    .card-body {
        padding: 1.5rem;
    }
    
    .player-type-result {
        padding: var(--spacing-md);
    }
    
    .btn-primary {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
}

/* 모바일 */
@media (max-width: 576px) {
    .hero-section .display-4 {
        font-size: 1.75rem;
    }
    
    .hero-section .lead {
        font-size: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .player-type-result {
        padding: var(--spacing-sm);
    }
    
    .type-icon {
        font-size: 3rem !important;
    }
    
    .btn-primary {
        width: 100%;
        padding: 1rem;
    }
    
    .btn-outline-primary {
        width: 100%;
    }
}

/* ==========================================================================
   접근성
   ========================================================================== */

/* 포커스 표시 개선 */
.form-control:focus,
.btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 고대비 모드 지원 */
@media (prefers-contrast: high) {
    .card {
        border: 2px solid #000;
    }
    
    .form-control {
        border: 2px solid #000;
    }
}

/* 움직임 감소 선호 시 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* ==========================================================================
   인쇄 스타일
   ========================================================================== */

@media print {
    .navbar,
    .hero-section,
    footer {
        display: none;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .btn {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
}

/* ==========================================================================
   에러 메시지 및 상태 표시
   ========================================================================== */

/* 에러 메시지 */
.error-message {
    border-radius: 8px;
    border-left: 4px solid var(--danger-color);
    animation: slideDown 0.3s ease-out;
}

.error-message h6 {
    color: var(--danger-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

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

/* 로딩 스피너 */
.fa-spinner {
    animation: spin 1s linear infinite;
}

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

/* 결과 나타나는 효과 (기본) */
#results-section {
    opacity: 1;
    transition: opacity 0.5s ease-in-out;
}

#results-section[style*="display: none"] {
    opacity: 0;
}

/* ==========================================================================
   개발자 도구 (디버깅용)
   ========================================================================== */

/* 개발 모드일 때만 표시 */
.debug-info {
    display: none;
    position: fixed;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    z-index: 9999;
}

/* 콘솔에서 .debug-info { display: block !important; } 로 활성화 가능 */\n\n/* ==========================================================================\n   고급 에러 처리 스타일\n   ========================================================================== */\n\n/* 토스트 컨테이너 */\n.toast-container {\n    z-index: 9999;\n}\n\n/* 토스트 스타일 개선 */\n.toast {\n    border-radius: 12px;\n    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);\n    border: none;\n    backdrop-filter: blur(10px);\n    margin-bottom: 1rem;\n    max-width: 400px;\n    animation: slideInRight 0.3s ease-out;\n}\n\n@keyframes slideInRight {\n    from {\n        transform: translateX(100%);\n        opacity: 0;\n    }\n    to {\n        transform: translateX(0);\n        opacity: 1;\n    }\n}\n\n/* 토스트 타입별 스타일 */\n.toast.bg-success {\n    background: linear-gradient(135deg, #28a745, #20c997) !important;\n}\n\n.toast.bg-danger {\n    background: linear-gradient(135deg, #dc3545, #e74c3c) !important;\n}\n\n.toast.bg-warning {\n    background: linear-gradient(135deg, #ffc107, #f39c12) !important;\n    color: #212529 !important;\n}\n\n.toast.bg-info {\n    background: linear-gradient(135deg, #17a2b8, #3498db) !important;\n}\n\n.toast-body {\n    padding: 1rem 1.25rem;\n    font-weight: 500;\n}\n\n.toast-body .small {\n    opacity: 0.9;\n    margin-top: 0.25rem;\n}\n\n/* 향상된 에러 필드 스타일 */\n.form-control.is-invalid {\n    border-color: #dc3545;\n    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);\n    animation: shakeError 0.5s ease-in-out;\n}\n\n@keyframes shakeError {\n    0%, 20%, 40%, 60%, 80%, 100% {\n        transform: translateX(0);\n    }\n    10%, 30%, 50%, 70%, 90% {\n        transform: translateX(-5px);\n    }\n}\n\n.form-control.is-valid {\n    border-color: #28a745;\n    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);\n    animation: successPulse 0.6s ease-in-out;\n}\n\n@keyframes successPulse {\n    0% {\n        box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);\n    }\n    50% {\n        box-shadow: 0 0 0 0.4rem rgba(40, 167, 69, 0.15);\n    }\n    100% {\n        box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);\n    }\n}\n\n/* 향상된 피드백 메시지 */\n.invalid-feedback {\n    display: block;\n    width: 100%;\n    margin-top: 0.25rem;\n    font-size: 0.875em;\n    color: #dc3545;\n    background-color: rgba(220, 53, 69, 0.1);\n    padding: 0.5rem;\n    border-radius: 6px;\n    border-left: 3px solid #dc3545;\n    animation: fadeInUp 0.3s ease-out;\n}\n\n@keyframes fadeInUp {\n    from {\n        opacity: 0;\n        transform: translateY(10px);\n    }\n    to {\n        opacity: 1;\n        transform: translateY(0);\n    }\n}\n\n/* 에러 복구 버튼 */\n.error-recovery-btn {\n    background-color: transparent;\n    border: 2px dashed #6c757d;\n    color: #6c757d;\n    border-radius: 8px;\n    transition: all 0.3s ease;\n}\n\n.error-recovery-btn:hover {\n    background-color: #6c757d;\n    color: white;\n    border-style: solid;\n    transform: translateY(-1px);\n}\n\n/* 네트워크 상태 표시 */\n.network-offline {\n    position: fixed;\n    top: 70px;\n    left: 50%;\n    transform: translateX(-50%);\n    background-color: #dc3545;\n    color: white;\n    padding: 0.75rem 1.5rem;\n    border-radius: 25px;\n    font-weight: 600;\n    z-index: 1050;\n    animation: bounceIn 0.5s ease-out;\n}\n\n@keyframes bounceIn {\n    0% {\n        opacity: 0;\n        transform: translateX(-50%) scale(0.3);\n    }\n    50% {\n        opacity: 1;\n        transform: translateX(-50%) scale(1.05);\n    }\n    70% {\n        transform: translateX(-50%) scale(0.9);\n    }\n    100% {\n        opacity: 1;\n        transform: translateX(-50%) scale(1);\n    }\n}\n\n/* 다크 모드 대응 */\n@media (prefers-color-scheme: dark) {\n    .toast {\n        color: #fff;\n    }\n    \n    .invalid-feedback {\n        background-color: rgba(220, 53, 69, 0.2);\n        color: #ff6b6b;\n    }\n    \n    .error-recovery-btn {\n        border-color: #adb5bd;\n        color: #adb5bd;\n    }\n    \n    .error-recovery-btn:hover {\n        background-color: #adb5bd;\n        color: #212529;\n    }\n}