@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #e0e7ff;
    --secondary: #64748b;
    --background: #f8fafc;
    --surface: #ffffff;
    --sidebar-bg: #0f172a;
    --sidebar-text: #94a3b8;
    --sidebar-active: #ffffff;
    --sidebar-active-bg: #1e293b;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Status Colors */
    --status-success-bg: #dcfce7;
    --status-success-text: #15803d;
    --status-warning-bg: #fef9c3;
    --status-warning-text: #a16207;
    --status-info-bg: #e0f2fe;
    --status-info-text: #0369a1;
    --status-danger-bg: #fee2e2;
    --status-danger-text: #b91c1c;
    --status-neutral-bg: #f1f5f9;
    --status-neutral-text: #475569;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--background);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* App Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.sidebar-header {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.sidebar-logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: #fff;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #818cf8, var(--primary));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.sidebar-user {
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.user-name {
    font-weight: 600;
    color: #fff;
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.75rem;
    color: var(--sidebar-text);
}

.sidebar-nav {
    flex: 1;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--sidebar-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.03);
}

.nav-link.active {
    color: var(--sidebar-active);
    background-color: var(--sidebar-active-bg);
    box-shadow: var(--shadow-sm);
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.logout-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fda4af;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.logout-btn:hover {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
    color: #f43f5e;
}

/* Main Content Area */
.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.top-bar {
    height: 70px;
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

.content-container {
    padding: 40px;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

/* Messages / Alerts */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background-color: var(--status-success-bg);
    color: var(--status-success-text);
    border: 1px solid rgba(21, 128, 61, 0.1);
}

.alert-danger {
    background-color: var(--status-danger-bg);
    color: var(--status-danger-text);
    border: 1px solid rgba(185, 28, 28, 0.1);
}

/* Cards & Layout Modules */
.grid-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 1024px) {
    .grid-container.cols-3 {
        grid-template-columns: 1fr 2fr;
    }
}

.card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.card-header {
    padding: 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
}

.card-body {
    padding: 24px;
}

/* Forms & Fields */
.form-group {
    margin-bottom: 20px;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

@media (min-width: 640px) {
    .form-group-row.cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    .form-group-row.cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 8px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background-color: #fff;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: var(--status-neutral-bg);
    color: var(--status-neutral-text);
    border-color: var(--border);
}

.btn-secondary:hover {
    background-color: #e2e8f0;
}

.btn-block {
    width: 100%;
}

/* Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th {
    background-color: #f8fafc;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
}

td {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    font-size: 0.95rem;
    color: var(--text-main);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background-color: #f8fafc;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.badge-present {
    background-color: var(--status-success-bg);
    color: var(--status-success-text);
}

.badge-absent {
    background-color: var(--status-danger-bg);
    color: var(--status-danger-text);
}

.badge-half-day {
    background-color: var(--status-warning-bg);
    color: var(--status-warning-text);
}

.badge-leave {
    background-color: var(--status-info-bg);
    color: var(--status-info-text);
}

/* Log Statuses */
.badge-completed {
    background-color: var(--status-success-bg);
    color: var(--status-success-text);
}

.badge-uploaded {
    background-color: var(--status-info-bg);
    color: var(--status-info-text);
}

.badge-under-progress {
    background-color: var(--status-warning-bg);
    color: var(--status-warning-text);
}

.badge-hold {
    background-color: var(--status-danger-bg);
    color: var(--status-danger-text);
}

/* Filter Component */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
    background-color: var(--surface);
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filter-group label {
    margin-bottom: 0;
}

/* Login Screen Styles */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, rgba(0, 0, 0, 0) 90%), var(--background);
}

.login-card {
    width: 100%;
    max-width: 440px;
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.login-logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #818cf8, var(--primary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.login-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Modal dialog */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background-color: var(--surface);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: transform 0.25s ease;
}

.modal-overlay.open .modal {
    transform: translateY(0);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-close:hover {
    color: var(--text-main);
}

/* Utility Helper */
.text-right {
    text-align: right;
}

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
}

.error-text {
    color: var(--status-danger-text);
    font-size: 0.8rem;
    margin-top: 4px;
    display: block;
    font-weight: 500;
}

.form-group-row > .form-group {
    margin-bottom: 0;
}

.card-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-weight: 500;
}

.header-actions,
.filter-actions,
.modal-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.modal-actions {
    justify-content: flex-end;
    margin-top: 24px;
}

.modal-help {
    margin: 0 0 16px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.modal.modal-lg {
    max-width: 720px;
}

.type-chip {
    font-size: 0.9rem;
    font-weight: 500;
    background-color: #f1f5f9;
    padding: 2px 8px;
    border-radius: 4px;
}

.comments-cell {
    max-width: 180px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    background-color: #fafbfd;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.875rem;
}

.stat-value {
    font-size: 1.1rem;
}

.stat-value.success { color: var(--status-success-text); }
.stat-value.danger { color: var(--status-danger-text); }
.stat-value.warning { color: var(--status-warning-text); }
.stat-value.info { color: var(--status-info-text); }

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.date-today {
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
}

.menu-toggle,
.sidebar-close {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--text-main);
    flex-shrink: 0;
}

.sidebar-close {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    z-index: 998;
}

.sidebar-backdrop.open {
    display: block;
}

.pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
}

.pagination-info {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.pagination-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.pagination-list a,
.pagination-list span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text-main);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
}

.pagination-list a:hover {
    background: #f1f5f9;
}

.pagination-list .active span {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.pagination-list .disabled span {
    opacity: 0.45;
    cursor: not-allowed;
}

/* Responsive layout */
@media (max-width: 1023px) {
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        z-index: 999;
        transform: translateX(-100%);
        width: min(280px, 85vw);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .menu-toggle,
    .sidebar-close {
        display: inline-flex;
    }

    .sidebar-header {
        justify-content: space-between;
    }

    .top-bar {
        padding: 0 16px;
        height: auto;
        min-height: 64px;
        gap: 8px;
    }

    .page-title {
        font-size: 1.15rem;
    }

    .date-today {
        font-size: 0.8rem;
        white-space: normal;
        text-align: right;
    }

    .content-container {
        padding: 16px;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 16px;
    }

    .header-actions {
        width: 100%;
    }

    .header-actions .btn {
        flex: 1;
        min-width: 140px;
    }

    .filter-bar {
        padding: 16px;
    }

    .filter-actions {
        width: 100%;
    }

    th, td {
        padding: 12px 14px;
    }

    body.menu-open {
        overflow: hidden;
    }
}

@media (max-width: 640px) {
    .modal {
        max-width: calc(100vw - 24px);
        margin: 12px;
    }

    .pagination {
        flex-direction: column;
        align-items: stretch;
    }

    .pagination-list {
        justify-content: center;
    }

    .top-bar {
        flex-wrap: wrap;
        padding: 12px 16px;
    }

    .date-today {
        width: 100%;
        text-align: left;
        padding-left: 52px;
    }
}