/*
 * SchoolUs Design System — Pastel Clean
 * 2026-03-22
 */

/* ===== Pretendard Variable ===== */
@import url('https://cdn.jsdelivr.net/npm/pretendard@1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.min.css');

/* ===== CSS Variables ===== */
:root {
    /* 배경 */
    --bg: #F8F6F3;
    --card: #FFFFFF;

    /* 텍스트 */
    --text-primary: #2D2A26;
    --text-secondary: #8A8580;
    --text-tertiary: #B5B0AA;

    /* 테두리 */
    --border: #EDEBE8;
    --border-hover: #D8D5D0;

    /* 민트 — 학급/출결/완료 */
    --mint: #B8E8D8;
    --mint-deep: #6BC4A8;
    --mint-bg: #F0FAF6;

    /* 라벤더 — 상담/일정/협업 */
    --lavender: #D4CCF0;
    --lavender-deep: #9B8AD4;
    --lavender-bg: #F5F2FC;

    /* 피치 — 과제/마감/주의 */
    --peach: #F8D4C4;
    --peach-deep: #E8956E;
    --peach-bg: #FDF4F0;

    /* 스카이 — 정보/공지/일반 */
    --sky: #BDE0F5;
    --sky-deep: #5BADE0;
    --sky-bg: #F0F7FC;

    /* 레몬 — 바로가기/강조 */
    --lemon: #F5E8A0;
    --lemon-deep: #D4B840;
    --lemon-bg: #FDFBF0;

    /* 로즈 — 긴급/에러 */
    --rose: #F0C4D4;
    --rose-deep: #D47A9A;
    --rose-bg: #FDF0F5;

    /* 라운딩 */
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;

    /* 그림자 */
    --shadow: 0 1px 3px rgba(45,42,38,.04), 0 4px 16px rgba(45,42,38,.03);
    --shadow-hover: 0 2px 8px rgba(45,42,38,.06), 0 8px 32px rgba(45,42,38,.05);
    --shadow-modal: 0 8px 32px rgba(45,42,38,.12), 0 24px 64px rgba(45,42,38,.08);
    /* Primary */
    --primary: #4CAF8A;
    --primary-hover: #3D9E7B;
    --primary-light: #E8F5F0;
    --primary-text: #FFFFFF;

    /* 사이드바 */
    --sidebar-bg-from: #2D2A26;
    --sidebar-bg-to: #1A1816;
    --sidebar-text: #D4D0CB;
    --sidebar-text-active: #FFFFFF;
    --sidebar-item-hover: rgba(255,255,255,0.07);
    --sidebar-item-active: rgba(255,255,255,0.12);

    /* 위젯 헤더 */
    --widget-notice-bg: #FFF4E8;
    --widget-notice-text: #B86A1A;
    --widget-message-bg: #F0ECFC;
    --widget-message-text: #6B4DC4;
    --widget-schedule-bg: #E8F2FC;
    --widget-schedule-text: #1A5FA8;
    --widget-timetable-bg: #E8F5F0;
    --widget-timetable-text: #1A7A56;
}

/* ===== Base ===== */
body.su-design {
    font-family: 'Pretendard Variable', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ===== Card ===== */
.su-card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all .3s ease;
}
.su-card:hover {
    box-shadow: var(--shadow-hover);
}

/* ===== Stat Card ===== */
.su-stat-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
    border-left: 3px solid var(--mint-deep);
    transition: all .3s ease;
}
.su-stat-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

/* ===== Buttons ===== */
.su-btn {
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    border: none;
    font-family: inherit;
}
.su-btn-primary {
    background: var(--mint-deep);
    color: white;
}
.su-btn-primary:hover {
    background: #5AB896;
    transform: translateY(-1px);
}
.su-btn-secondary {
    background: var(--card);
    color: var(--text-primary);
    border: 1px solid var(--border);
}
.su-btn-secondary:hover {
    border-color: var(--mint-deep);
    background: var(--mint-bg);
}
.su-btn-danger {
    background: var(--rose-deep);
    color: white;
}

/* ===== Input ===== */
.su-input {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--card);
    outline: none;
    transition: border-color .2s;
}
.su-input:focus {
    border-color: var(--mint-deep);
}
.su-input::placeholder {
    color: var(--text-tertiary);
}

/* ===== Table ===== */
.su-table {
    width: 100%;
    border-collapse: collapse;
}
.su-table th {
    background: var(--bg);
    padding: 10px 14px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.su-table td {
    padding: 12px 14px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}
.su-table tr:hover {
    background: var(--mint-bg);
}

/* ===== Modal ===== */
.su-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(45, 42, 38, .4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}
.su-modal {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-modal);
    max-width: 500px;
    width: 90%;
    max-height: 85vh;
    overflow: hidden;
}
.su-modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.su-modal-body {
    padding: 20px 24px;
}
.su-modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ===== Badge ===== */
.su-badge {
    padding: 4px 10px;
    border-radius: var(--radius-xs);
    font-size: 11px;
    font-weight: 600;
    display: inline-block;
}
.su-badge-mint { background: var(--mint-bg); color: var(--mint-deep); }
.su-badge-lavender { background: var(--lavender-bg); color: var(--lavender-deep); }
.su-badge-peach { background: var(--peach-bg); color: var(--peach-deep); }
.su-badge-sky { background: var(--sky-bg); color: var(--sky-deep); }
.su-badge-rose { background: var(--rose-bg); color: var(--rose-deep); }

/* ===== Icon Box ===== */
.su-icon-box {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}
.su-icon-mint { background: var(--mint-bg); color: var(--mint-deep); }
.su-icon-lavender { background: var(--lavender-bg); color: var(--lavender-deep); }
.su-icon-peach { background: var(--peach-bg); color: var(--peach-deep); }
.su-icon-sky { background: var(--sky-bg); color: var(--sky-deep); }

/* ===== Avatar ===== */
.su-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    color: white;
}
.su-avatar-mint { background: linear-gradient(135deg, var(--mint), var(--mint-deep)); }
.su-avatar-lavender { background: linear-gradient(135deg, var(--lavender), var(--lavender-deep)); }
.su-avatar-peach { background: linear-gradient(135deg, var(--peach), var(--peach-deep)); }
.su-avatar-sky { background: linear-gradient(135deg, var(--sky), var(--sky-deep)); }

/* ===== Nav ===== */
.su-header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 16px 32px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.su-nav-item {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all .2s;
    border: none;
    background: none;
}
.su-nav-item:hover {
    background: var(--mint-bg);
    color: var(--mint-deep);
}
.su-nav-item.active {
    background: var(--mint-bg);
    color: var(--mint-deep);
    font-weight: 600;
}

/* ===== Animation ===== */
@keyframes suFadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}
.su-fade-up {
    animation: suFadeUp .4s ease-out both;
}

/* ===== Hero Card ===== */
.hero-card {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--card) 60%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.hero-greeting {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.hero-sub {
    display: flex;
    align-items: center;
    gap: 6px;
}
.hero-date {
    font-size: 14px;
    color: var(--text-secondary);
}
.hero-badge {
    font-size: 11px;
    padding: 2px 7px;
    border-radius: 20px;
    background: var(--primary);
    color: white;
    vertical-align: middle;
}
.hero-summary-chips {
    display: flex;
    gap: 8px;
    margin-top: 14px;
    flex-wrap: wrap;
}
.hero-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border-radius: var(--radius-xs);
    font-size: 13px;
    background: var(--card);
    border: 1px solid var(--border);
}
.chip-label {
    color: var(--text-secondary);
}
.chip-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* ===== Widget Card System ===== */
.widget-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.widget-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    height: 48px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    font-weight: 600;
}
.widget-notice .widget-header { border-left: 3px solid var(--peach-deep); }
.widget-message .widget-header { border-left: 3px solid var(--lavender-deep); }
.widget-schedule .widget-header { border-left: 3px solid var(--sky-deep); }
.widget-timetable .widget-header { border-left: 3px solid var(--mint-deep); }
.widget-header .widget-icon {
    font-size: 16px;
    margin-right: 6px;
}
.widget-action-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background 0.15s;
}
.widget-action-btn:hover {
    background: var(--border);
}

/* ===== Info Banner Card ===== */
.info-banner-card {
    background: linear-gradient(135deg, var(--mint-bg) 0%, var(--card) 70%);
    border: 1px solid var(--mint);
    border-radius: var(--radius);
    padding: 20px;
}
.info-banner-top {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
}
.info-banner-icon {
    font-size: 28px;
    line-height: 1;
}
.info-banner-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.info-banner-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}
.info-service-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--mint-bg);
    border: 1px solid var(--mint);
    border-radius: var(--radius-xs);
    padding: 6px 10px;
    font-size: 13px;
    font-weight: 500;
    color: var(--mint-deep);
    margin-bottom: 12px;
}
.info-contact {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    color: var(--text-secondary);
}
.info-contact a {
    color: var(--text-secondary);
    text-decoration: none;
}
.info-contact a:hover {
    color: var(--primary);
}

/* ===== Todo Bar ===== */
.todo-bar {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}
.todo-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: var(--radius-xs);
    background: var(--bg);
    border: 1px solid var(--border);
    font-size: 13px;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}
.todo-chip:hover {
    border-color: var(--border-hover);
    background: var(--card);
}
.todo-chip-badge {
    background: var(--primary);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

/* ===== Empty State ===== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
    color: var(--text-tertiary);
    font-size: 13px;
    gap: 8px;
}
.empty-state-icon {
    font-size: 28px;
    opacity: 0.5;
}

/* ===== Font Scale ===== */
.text-xs { font-size: 11px; }
.text-sm { font-size: 13px; }

/* ===== Transition ===== */
a, button, .clickable {
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}

/* ===== Mobile Responsive ===== */
@media (max-width: 768px) {
    .mobile-tabbar {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 60px;
        background: var(--card);
        border-top: 1px solid var(--border);
        z-index: 100;
        align-items: center;
        justify-content: space-around;
        padding: 0 8px;
        padding-bottom: env(safe-area-inset-bottom);
    }
    .mobile-tabbar-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2px;
        font-size: 10px;
        color: var(--text-tertiary);
        padding: 8px;
        border-radius: var(--radius-xs);
        cursor: pointer;
    }
    .mobile-tabbar-item.active {
        color: var(--primary);
    }
    .mobile-tabbar-item .tab-icon {
        font-size: 20px;
    }
    .main-content {
        padding-bottom: 72px;
    }
    .dashboard-widgets-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
}
@media (max-width: 640px) {
    .hero-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .dashboard-widgets-grid {
        grid-template-columns: 1fr;
    }
}

/* Hero + Info 2-column responsive */
@media (max-width: 768px) {
    .hero-card { padding: 18px 20px; }
}
@media (max-width: 640px) {
    div[style*="grid-template-columns:1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }
}

/* Hero row 3-column responsive */
@media (max-width: 1024px) {
    .hero-row { grid-template-columns: 1fr 1fr !important; }
    .hero-row > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
    .hero-row { grid-template-columns: 1fr !important; }
    .hero-row > :first-child { grid-column: auto; }
}

/* ===== Phase 1: Design Improvement 2026-03-29 ===== */

/* --- Unified Sidebar (override hardcoded navy) --- */
.sidebar-gradient {
    background: linear-gradient(180deg, var(--sidebar-bg-from) 0%, var(--sidebar-bg-to) 100%) !important;
}

/* --- Unified Button: replace gradient buttons --- */
.su-btn-action {
    background: var(--primary);
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    border: none;
    font-family: inherit;
    box-shadow: 0 2px 8px rgba(76, 175, 138, 0.25);
}
.su-btn-action:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(76, 175, 138, 0.35);
}

.su-btn-info {
    background: var(--sky-deep);
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    border: none;
    font-family: inherit;
}
.su-btn-info:hover {
    background: #4A9DD0;
    transform: translateY(-1px);
}

.su-btn-warn {
    background: var(--peach-deep);
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    border: none;
    font-family: inherit;
}
.su-btn-warn:hover {
    background: #D8854E;
    transform: translateY(-1px);
}

/* --- Unified Section Header (replace gradient headers) --- */
.su-section-header {
    background: var(--primary);
    color: white;
    padding: 16px 20px;
    border-radius: var(--radius) var(--radius) 0 0;
    font-weight: 700;
    font-size: 15px;
}
.su-section-header-alt {
    background: var(--sky-deep);
    color: white;
    padding: 16px 20px;
    border-radius: var(--radius) var(--radius) 0 0;
    font-weight: 700;
    font-size: 15px;
}

/* --- Unified Tab Style --- */
.su-tab-btn {
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all .2s;
    border: 1.5px solid var(--border);
    background: var(--card);
}
.su-tab-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}
.su-tab-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(76, 175, 138, 0.3);
}

/* --- Toast Notification --- */
.su-toast {
    position: fixed;
    top: 24px;
    right: 24px;
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    z-index: 10001;
    animation: suFadeUp .3s ease-out;
    box-shadow: var(--shadow-hover);
}
.su-toast-success { background: var(--mint-deep); color: white; }
.su-toast-error { background: var(--rose-deep); color: white; }
.su-toast-info { background: var(--sky-deep); color: white; }

/* --- Skeleton Loading --- */
.su-skeleton {
    background: linear-gradient(90deg, var(--bg) 25%, #e2e0dd 50%, var(--bg) 75%);
    background-size: 200% 100%;
    animation: suSkeleton 1.5s infinite;
    border-radius: var(--radius-xs);
}
@keyframes suSkeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* --- Card Hover Lift --- */
.su-lift:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* --- Dismiss Banner --- */
.su-dismissible .su-dismiss-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all .15s;
}
.su-dismissible .su-dismiss-btn:hover {
    background: var(--rose-bg);
    color: var(--rose-deep);
    border-color: var(--rose);
}

/* ===== Enhanced Mobile Responsive ===== */
@media (max-width: 1024px) {
    /* Sidebar collapse to icon-only on tablet */
    #sidebar { width: 72px !important; min-width: 72px !important; }
    #sidebar .sidebar-school-name,
    #sidebar .sidebar-user-info,
    #sidebar .sidebar-point-section,
    #sidebar .nav-label,
    #sidebar .nav-item span:not(.nav-icon),
    #sidebar .p-4.border-t span,
    #sidebar > div:first-child > div:not(:first-child) { display: none !important; }
    #sidebar .nav-item { justify-content: center; padding: 12px !important; }
    #sidebar .nav-item i { margin: 0 !important; font-size: 18px; }
    .main-content { margin-left: 0 !important; }
}

@media (max-width: 768px) {
    /* Hide sidebar completely, show mobile tabbar */
    #sidebar { display: none !important; }
    #sidebar.mobile-open { display: flex !important; width: 280px !important; }
    
    /* Table responsive */
    .su-table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .su-table-responsive table {
        min-width: 600px;
    }
    
    /* Stack grids */
    .su-mobile-stack {
        display: flex !important;
        flex-direction: column !important;
    }
    .su-mobile-stack > * {
        width: 100% !important;
    }
    
    /* Tabs horizontal scroll */
    .su-tabs-scroll {
        display: flex;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        gap: 8px;
        padding-bottom: 4px;
    }
    .su-tabs-scroll::-webkit-scrollbar { display: none; }
    .su-tabs-scroll > * { flex-shrink: 0; }
    
    /* Page title smaller */
    h1, .page-title { font-size: 20px !important; }
    h2, .section-title { font-size: 16px !important; }
    
    /* Compact padding */
    .su-mobile-compact { padding: 12px !important; }
}

@media (max-width: 640px) {
    /* Single column everything */
    .grid { grid-template-columns: 1fr !important; }
    
    /* Compact hero */
    .hero-card {
        padding: 16px !important;
        flex-direction: column !important;
    }
    .hero-greeting { font-size: 20px !important; }
}

/* --- Page Transition --- */
.su-page-enter {
    animation: suFadeUp .3s ease-out;
}