/* Pretendard 폰트 Import (한글 가독성 최고) */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');

/* 전역 스타일 */
:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --success-hover: #059669;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --background: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    background-attachment: fixed;
    color: var(--text-primary);
    font-size: 15px;
    line-height: 1.6;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

html {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

/* 로그인 페이지 스타일 */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    width: 100%;
    overflow-x: hidden;
}

.login-card {
    background: var(--card-bg);
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    padding: 48px;
    width: 100%;
    max-width: 440px;
    border: none;
    box-sizing: border-box;
}

.login-card .form-control {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.login-card h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-align: center;
}

.login-card .subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 32px;
    font-size: 14px;
}

/* 네비게이션 바 */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    box-shadow: var(--shadow);
    padding: 16px 0;
}

.navbar-brand {
    font-size: 20px;
    font-weight: 700;
    color: white !important;
}

.navbar * {
    color: white !important;
}

/* 카드 스타일 */
.card {
    border: none;
    border-radius: 16px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

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

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    font-weight: 600;
    font-size: 18px;
    padding: 20px 24px;
    border: none;
}

.card-body {
    padding: 32px;
    overflow-x: hidden;
}

/* 폼 입력 필드 */
.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 14px;
}

.form-control, .form-select {
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 14px;
    transition: all 0.2s;
    background-color: var(--card-bg);
    width: 100%;
    box-sizing: border-box;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background-color: #ffffff;
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

/* 버튼 스타일 */
.btn {
    border-radius: 10px;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, #7c3aed 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #14b8a6 100%);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--success-hover) 0%, #0d9488 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

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

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-light {
    border: 2px solid white;
    color: white;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: white;
    color: white;
    backdrop-filter: blur(10px);
}

/* 알림 메시지 */
.alert {
    border-radius: 12px;
    padding: 16px 20px;
    border: none;
    font-size: 14px;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
}

.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
}

/* 테이블 스타일 */
.table {
    font-size: 14px;
    margin-bottom: 0;
}

.table thead th {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    color: var(--text-primary);
    font-weight: 600;
    border: none;
    padding: 16px;
}

.table tbody td {
    padding: 14px 16px;
    vertical-align: middle;
    border-color: var(--border-color);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: #f8fafc;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* 푸터 */
footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    border-top: none;
    backdrop-filter: blur(10px);
    color: white !important;
}

footer * {
    color: white !important;
    font-weight: 600;
}

/* 섹션 제목 */
h5 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

/* 구분선 */
hr {
    border-color: var(--border-color);
    opacity: 0.5;
    margin: 32px 0;
}

/* 작은 텍스트 */
.text-muted {
    color: var(--text-secondary) !important;
}

/* 컨테이너 */
.content-wrapper .container {
    background: transparent;
    max-width: 1200px;
    padding-left: 15px;
    padding-right: 15px;
}

.login-container .container {
    padding-left: 15px;
    padding-right: 15px;
}

/* 애니메이션 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* 반응형 디자인 */
@media (max-width: 768px) {
    .login-card {
        padding: 32px 20px;
        max-width: 95%;
    }

    .card-body {
        padding: 20px;
    }

    .navbar {
        padding: 12px 0;
    }

    .navbar-brand {
        font-size: 16px;
    }

    .content-wrapper .container {
        padding-left: 10px;
        padding-right: 10px;
    }

    .form-control, .form-select {
        font-size: 16px; /* iOS zoom 방지 */
    }
}

/* Bootstrap row overflow 방지 */
.card-body .row {
    margin-left: 0;
    margin-right: 0;
    width: 100%;
}

.card-body .row > * {
    padding-left: 8px;
    padding-right: 8px;
}

/* 스피너 */
.spinner-border {
    border-width: 2px;
}

/* Select 화살표 커스터마이징 */
.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%233b82f6' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
}

/* 입력 필드 disabled 스타일 */
.form-control:disabled, .form-select:disabled {
    background-color: #f1f5f9;
    border-color: var(--border-color);
    opacity: 0.7;
}

/* 콘텐츠 컨테이너 */
.content-wrapper {
    background: #ffffff;
    min-height: calc(100vh - 200px);
    padding: 32px 0;
    width: 100%;
    overflow-x: hidden;
}

/* 통계 카드 */
.stat-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

.stat-card p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 14px;
}