/**
 * ==========================================================================
 * Minton Helper Design System (공통 모던 디자인 시스템)
 * - 전역 폰트 및 타이포그래피 표준화
 * - 모던 버튼 컴포넌트 시스템 (크기, 테마, 호버/액티브 인터랙션)
 * - 모던 모달 & 팝업 시스템 (백드롭 블러, 모던 카드, 닫기 버튼)
 * - 모던 폼 컨트롤 (Input, Select, Focus 링)
 * ==========================================================================
 */

:root {
    /* 기본 색상 토큰 (Slate & Neutral) */
    --ds-slate-900: #0F172A;
    --ds-slate-800: #1E293B;
    --ds-slate-700: #334155;
    --ds-slate-600: #475569;
    --ds-slate-500: #64748B;
    --ds-slate-400: #94A3B8;
    --ds-slate-300: #CBD5E1;
    --ds-slate-200: #E2E8F0;
    --ds-slate-100: #F1F5F9;
    --ds-slate-50:  #F8FAFC;
    --ds-white:     #FFFFFF;

    /* 시맨틱 컬러 토큰 */
    --ds-primary:       #3B82F6;
    --ds-primary-dark:  #1D4ED8;
    --ds-primary-light: #EFF6FF;

    --ds-success:       #10B981;
    --ds-success-dark:  #047857;
    --ds-success-light: #ECFDF5;

    --ds-danger:        #EF4444;
    --ds-danger-dark:   #B91C1C;
    --ds-danger-light:  #FEF2F2;

    --ds-warning:       #F59E0B;
    --ds-warning-dark:  #B45309;
    --ds-warning-light: #FFFBEB;

    --ds-purple:        #8B5CF6;
    --ds-purple-dark:   #6D28D9;
    --ds-purple-light:  #F5F3FF;

    /* 그림자 토큰 */
    --ds-shadow-sm:    0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --ds-shadow-md:    0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --ds-shadow-lg:    0 10px 15px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -4px rgba(15, 23, 42, 0.06);
    --ds-shadow-xl:    0 20px 25px -5px rgba(15, 23, 42, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.08);
    --ds-shadow-modal: 0 25px 50px -12px rgba(15, 23, 42, 0.28);

    /* 라운딩 토큰 */
    --ds-radius-sm:   6px;
    --ds-radius-md:   10px;
    --ds-radius-lg:   16px;
    --ds-radius-xl:   20px;
    --ds-radius-full: 9999px;

    /* 인터랙션 트랜지션 */
    --ds-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --ds-transition-fast: all 0.15s ease-out;

    /* 타이포그래피 */
    --ds-font-family: -apple-system, BlinkMacSystemFont, "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", "Segoe UI", Roboto, "Malgun Gothic", "Noto Sans KR", sans-serif;
}

/* ==========================================================================
   1. 글로벌 타이포그래피 & 리셋
   ========================================================================== */
html, body {
    font-family: var(--ds-font-family);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    letter-spacing: -0.015em;
    color: var(--ds-slate-700);
}

button, input, select, textarea {
    font-family: inherit;
    letter-spacing: inherit;
}

/* ==========================================================================
   2. 통일된 모던 버튼 시스템 (.modern-btn / .btn)
   ========================================================================== */
.modern-btn,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 16px;
    font-size: 0.92rem;
    font-weight: 600;
    line-height: 1.25;
    border-radius: var(--ds-radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
    transition: var(--ds-transition);
    background-color: var(--ds-slate-100);
    color: var(--ds-slate-800);
    box-shadow: var(--ds-shadow-sm);
    min-height: 40px;
    box-sizing: border-box;
}

.modern-btn:hover,
.btn:hover {
    transform: translateY(-1.5px);
    box-shadow: var(--ds-shadow-md);
}

.modern-btn:active,
.btn:active {
    transform: translateY(0);
    box-shadow: var(--ds-shadow-sm);
    filter: brightness(0.96);
}

.modern-btn:focus-visible,
.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.35);
}

/* 버튼 크기 변형 */
.btn-sm, .modern-btn-sm {
    padding: 6px 12px !important;
    font-size: 0.82rem !important;
    min-height: 32px !important;
    border-radius: var(--ds-radius-sm) !important;
}

.btn-lg, .modern-btn-lg {
    padding: 12px 24px !important;
    font-size: 1.05rem !important;
    min-height: 48px !important;
    border-radius: var(--ds-radius-lg) !important;
}

.btn-icon, .modern-btn-icon {
    width: 40px !important;
    height: 40px !important;
    padding: 0 !important;
    border-radius: var(--ds-radius-md) !important;
    flex-shrink: 0;
}

.btn-icon.btn-sm {
    width: 32px !important;
    height: 32px !important;
    border-radius: var(--ds-radius-sm) !important;
}

/* 버튼 컬러 테마 */
.btn-primary, .modern-btn-primary {
    background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%) !important;
    color: #FFFFFF !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25) !important;
}

.btn-primary:hover, .modern-btn-primary:hover {
    background: linear-gradient(135deg, #1D4ED8 0%, #1E40AF 100%) !important;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35) !important;
}

.btn-secondary, .modern-btn-secondary {
    background-color: var(--ds-slate-100) !important;
    color: var(--ds-slate-700) !important;
    border: 1px solid var(--ds-slate-200) !important;
}

.btn-secondary:hover, .modern-btn-secondary:hover {
    background-color: var(--ds-slate-200) !important;
    color: var(--ds-slate-900) !important;
}

.btn-success, .modern-btn-success {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%) !important;
    color: #FFFFFF !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 2px 6px rgba(16, 185, 129, 0.25) !important;
}

.btn-success:hover, .modern-btn-success:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%) !important;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35) !important;
}

.btn-danger, .modern-btn-danger {
    background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%) !important;
    color: #FFFFFF !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 2px 6px rgba(239, 68, 68, 0.25) !important;
}

.btn-danger:hover, .modern-btn-danger:hover {
    background: linear-gradient(135deg, #DC2626 0%, #B91C1C 100%) !important;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.35) !important;
}

.btn-warning, .modern-btn-warning {
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%) !important;
    color: #FFFFFF !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 2px 6px rgba(245, 158, 11, 0.25) !important;
}

.btn-warning:hover, .modern-btn-warning:hover {
    background: linear-gradient(135deg, #D97706 0%, #B45309 100%) !important;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35) !important;
}

.btn-purple, .modern-btn-purple {
    background: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%) !important;
    color: #FFFFFF !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    box-shadow: 0 2px 6px rgba(139, 92, 246, 0.25) !important;
}

.btn-purple:hover, .modern-btn-purple:hover {
    background: linear-gradient(135deg, #7C3AED 0%, #6D28D9 100%) !important;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.35) !important;
}

/* ==========================================================================
   3. 통일된 모던 팝업/모달 시스템
   ========================================================================== */

@keyframes dsModalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes dsModalSlideUp {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 모달 백드롭 블러 공통 */
.modal-overlay,
.modal-backdrop,
.settings-modal,
.guide-overlay,
.popup-overlay,
.hamburger-overlay,
div.fixed.inset-0,
div[id*="overlay"],
div[id*="Overlay"] {
    background-color: rgba(15, 23, 42, 0.68) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    animation: dsModalFadeIn 0.2s ease-out;
    overscroll-behavior: contain;
}

/* 모달 카드 컨테이너 공통 */
.modal-card,
.modal-content,
.settings-content,
.guide-popup,
.court-change-popup,
.game-reset-popup,
div.fixed.inset-0 > div,
div[id*="overlay"] > .modal,
div[id*="Overlay"] > .modal,
.modal:not(.modal-overlay):not(.settings-modal):not(.guide-overlay):not(.fixed) {
    border-radius: var(--ds-radius-xl) !important;
    box-shadow: var(--ds-shadow-modal) !important;
    border: 1px solid rgba(226, 232, 240, 0.8) !important;
    background-color: #FFFFFF !important;
    overflow: hidden;
    animation: dsModalSlideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
    transition: var(--ds-transition);
}

/* 모달 헤더 */
.modal-header,
.settings-header {
    padding: 18px 24px !important;
    background-color: #FFFFFF !important;
    border-bottom: 1px solid var(--ds-slate-200) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
}

.modal-header h2,
.modal-header h3,
.modal-title {
    font-size: 1.2rem !important;
    font-weight: 700 !important;
    color: var(--ds-slate-900) !important;
    margin: 0 !important;
    letter-spacing: -0.02em !important;
}

/* 모달 우측 상단 X 닫기 버튼 */
.modal-close,
.modal-close-btn,
.modal-header .close-btn,
.modal-header .close-button,
.close-modal-icon,
button.close:not(.btn),
#closeUnregisteredModal,
#closeStatsModal {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 36px !important;
    height: 36px !important;
    min-width: 36px !important;
    min-height: 36px !important;
    padding: 0 !important;
    border-radius: 50% !important;
    background-color: var(--ds-slate-100) !important;
    border: 1px solid transparent !important;
    color: var(--ds-slate-500) !important;
    font-size: 1.25rem !important;
    line-height: 1 !important;
    cursor: pointer !important;
    transition: var(--ds-transition) !important;
    text-decoration: none !important;
}

.modal-close:hover,
.modal-close-btn:hover,
.modal-header .close-btn:hover,
.modal-header .close-button:hover,
.close-modal-icon:hover,
button.close:not(.btn):hover,
#closeUnregisteredModal:hover,
#closeStatsModal:hover {
    background-color: var(--ds-slate-200) !important;
    color: var(--ds-slate-900) !important;
    transform: scale(1.06) !important;
}

/* 모달 하단 버튼 그룹 공통 */
.modal-buttons {
    display: flex !important;
    justify-content: flex-end !important;
    align-items: center !important;
    gap: 10px !important;
    padding: 16px 24px !important;
    background-color: var(--ds-slate-50) !important;
    border-top: 1px solid var(--ds-slate-200) !important;
    margin-top: 20px !important;
}

.modal-buttons button {
    padding: 9px 18px !important;
    border-radius: var(--ds-radius-md) !important;
    font-size: 0.92rem !important;
    font-weight: 600 !important;
    min-height: 40px !important;
    cursor: pointer !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border: 1px solid transparent !important;
    transition: var(--ds-transition) !important;
    box-shadow: var(--ds-shadow-sm) !important;
}

.modal-buttons button:hover {
    transform: translateY(-1.5px) !important;
    box-shadow: var(--ds-shadow-md) !important;
}

/* 모달 바디 */
.modal-body {
    padding: 24px !important;
    max-height: calc(85vh - 130px);
    overflow-y: auto;
    overscroll-behavior: contain;
    color: var(--ds-slate-700);
}

/* 모달 푸터 */
.modal-footer {
    padding: 16px 24px !important;
    background-color: var(--ds-slate-50) !important;
    border-top: 1px solid var(--ds-slate-200) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
    gap: 10px !important;
}

/* ==========================================================================
   4. 통일된 모던 폼 컨트롤 (Input, Select)
   ========================================================================== */
.form-input,
.form-select,
.search-input,
input[type="text"]:not(.raw-input),
input[type="search"]:not(.raw-input),
input[type="number"]:not(.raw-input),
select:not(.raw-select),
textarea:not(.raw-textarea) {
    width: 100%;
    padding: 10px 14px;
    font-size: 0.92rem;
    line-height: 1.4;
    border-radius: var(--ds-radius-md);
    border: 1.5px solid var(--ds-slate-200);
    background-color: var(--ds-slate-50);
    color: var(--ds-slate-900);
    transition: var(--ds-transition);
    box-sizing: border-box;
}

.form-input:focus,
.form-select:focus,
.search-input:focus,
input[type="text"]:focus:not(.raw-input),
input[type="search"]:focus:not(.raw-input),
input[type="number"]:focus:not(.raw-input),
select:focus:not(.raw-select),
textarea:focus:not(.raw-textarea) {
    outline: none;
    border-color: var(--ds-primary);
    background-color: var(--ds-white);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* ==========================================================================
   5. 모바일 반응형 팝업/바텀시트 최적화 (화면 폭 <= 640px)
   ========================================================================== */
@media (max-width: 640px) {
    .modal-content,
    .modal-card,
    div[id$="Modal"] > div.bg-white,
    div[id$="modal"] > div.bg-white {
        width: 95% !important;
        margin: 16px auto !important;
        border-radius: var(--ds-radius-lg) !important;
    }

    .modal-header,
    .settings-header {
        padding: 14px 18px !important;
    }

    .modal-body {
        padding: 18px 16px !important;
    }

    .modal-footer {
        padding: 12px 16px !important;
    }

    .modern-btn,
    .btn {
        min-height: 38px;
        padding: 8px 14px;
        font-size: 0.88rem;
    }
}

/* ==========================================================================
   6. 통일된 모던 공통 푸터 (.common-footer)
   ========================================================================== */
.common-footer {
    width: 100%;
    margin-top: 3rem !important;
    padding: 1.75rem 1.25rem !important;
    background-color: #0F172A !important;
    color: #94A3B8 !important;
    border-radius: var(--ds-radius-lg, 16px) !important;
    border: 1px solid #1E293B !important;
    text-align: center !important;
    font-size: 0.88rem !important;
    box-sizing: border-box !important;
    user-select: none;
}

.common-footer .footer-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.45rem;
}

.common-footer .footer-copyright {
    color: #CBD5E1 !important;
    font-weight: 600 !important;
    font-size: 0.9rem !important;
    margin: 0 !important;
    letter-spacing: -0.01em;
}

.common-footer .footer-creator {
    color: #64748B !important;
    font-size: 0.82rem !important;
    margin: 0 !important;
    word-break: keep-all;
}

.common-footer .footer-links {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.75rem !important;
    margin-top: 0.5rem !important;
    font-size: 0.82rem !important;
}

.common-footer .footer-link {
    color: #38BDF8 !important;
    text-decoration: none !important;
    font-weight: 500 !important;
    transition: var(--ds-transition) !important;
}

.common-footer .footer-link:hover {
    color: #7DD3FC !important;
    text-decoration: underline !important;
}

.common-footer .footer-divider {
    color: #475569 !important;
}

@media (max-width: 640px) {
    .common-footer {
        margin-top: 2rem !important;
        padding: 1.25rem 1rem !important;
        border-radius: var(--ds-radius-md, 10px) !important;
    }
}