:root {
    --app-space-xs: 0.5rem;
    --app-space-sm: 0.75rem;
    --app-space-md: 1rem;
    --app-space-lg: 1.5rem;
    --app-radius: 14px;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    overflow-x: hidden;
}

img,
svg,
canvas,
video {
    max-width: 100%;
    height: auto;
}

button,
input,
select,
textarea {
    font: inherit;
}

.header,
.header-top,
.action-bar,
.calendar-header,
.user-info,
.nav-links,
.nav-menu,
.tabs,
.form-actions,
.action-buttons,
.calendar-nav,
.punch-buttons {
    flex-wrap: wrap;
}

.tabs,
.nav-links,
.nav-menu,
.calendar-nav {
    scrollbar-width: thin;
}

.nav-links,
.nav-menu,
.tabs {
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
}

.nav-links a,
.nav-link,
.tab-btn {
    white-space: nowrap;
}

.card,
.calendar,
.calendar-container,
.today-schedule,
.login-container,
.modal-content {
    max-width: 100%;
}

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

.calendar-grid {
    min-width: 640px;
}

.table-responsive table {
    min-width: 100%;
}

.table-responsive table th,
.table-responsive table td {
    word-break: break-word;
}

@media (max-width: 992px) {
    .header,
    .header-top,
    .container {
        padding-left: 20px !important;
        padding-right: 20px !important;
    }

    .header,
    .header-top,
    .action-bar,
    .calendar-header {
        gap: 12px;
    }

    .user-info {
        width: 100%;
        justify-content: space-between;
    }

    .nav-menu {
        padding-left: 12px !important;
        padding-right: 12px !important;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .header,
    .header-top {
        align-items: flex-start !important;
    }

    .header h1,
    .header-top h1 {
        font-size: 1.45rem !important;
        line-height: 1.3;
    }

    .container {
        padding-top: 24px !important;
        padding-bottom: 24px !important;
    }

    .card,
    .welcome-banner,
    .calendar,
    .calendar-container,
    .today-schedule,
    .stat-card,
    .clock-display,
    .login-left,
    .login-right {
        padding: 20px !important;
    }

    .btn,
    .logout-btn,
    .action-buttons .btn,
    .form-actions .btn,
    .action-btns .btn {
        width: 100%;
        text-align: center;
        justify-content: center;
    }

    .punch-btn {
        min-width: 0 !important;
    }

    .current-time,
    .clock-display .time,
    .stat-card .value {
        font-size: clamp(1.8rem, 8vw, 2.8rem) !important;
    }

    .modal {
        padding: 12px;
    }

    .modal-content {
        width: 100%;
        max-width: 100% !important;
        max-height: calc(100vh - 24px) !important;
        padding: 20px !important;
        border-radius: 16px !important;
        margin: 0 !important;
    }

    .table-responsive {
        overflow: visible;
    }

    .table-responsive table,
    .table-responsive thead,
    .table-responsive tbody,
    .table-responsive th,
    .table-responsive td,
    .table-responsive tr {
        display: block;
        width: 100%;
    }

    .table-responsive thead {
        display: none;
    }

    .table-responsive table {
        background: transparent;
        border-collapse: separate;
        border-spacing: 0;
    }

    .table-responsive tr {
        background: #fff;
        border: 1px solid #e9ecef;
        border-radius: 12px;
        margin-bottom: 12px;
        overflow: hidden;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    }

    .table-responsive td {
        position: relative;
        padding: 12px 14px 12px 46% !important;
        min-height: 46px;
        border: 0 !important;
        text-align: right !important;
        background: transparent !important;
        white-space: normal;
    }

    .table-responsive td::before {
        content: attr(data-label);
        position: absolute;
        top: 12px;
        left: 14px;
        width: 40%;
        font-weight: 600;
        text-align: left;
        color: #555;
    }

    .table-responsive td:empty {
        display: none;
    }

    .table-responsive td[colspan] {
        padding-left: 14px !important;
        text-align: left !important;
    }

    .table-responsive td[colspan]::before {
        display: none;
    }

    .table-responsive td .btn,
    .table-responsive td button,
    .table-responsive td a.btn {
        width: 100%;
        margin-top: 6px;
    }

    .login-container {
        border-radius: 16px !important;
    }

    .login-left h1,
    .login-right h2 {
        font-size: 1.75rem !important;
    }

    .calendar-grid {
        min-width: 560px;
    }

    [style*='grid-template-columns: repeat(3, 1fr)'] {
        grid-template-columns: 1fr !important;
    }
}