/* ============================================
   HR System — Styles
   Inspired by WP ERP's clean business aesthetic
   ============================================ */

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

:root {
    --primary: #3273dc;
    --primary-dark: #2366c8;
    --primary-light: #e7f0fb;
    --accent: #f7a600;
    --success: #23a455;
    --danger: #c03c3c;
    --warning: #e08f00;
    --bg: #f1f3f6;
    --surface: #ffffff;
    --border: #e1e5eb;
    --text: #2c3e50;
    --text-muted: #6b7884;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --radius: 4px;
    --radius-lg: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

h1, h2, h3, h4 { color: var(--text); font-weight: 600; margin-bottom: 0.5rem; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.1rem; }

/* ----------- Top Bar ----------- */
.top-bar {
    background: #2c3e50;
    color: #fff;
    padding: 0.6rem 0;
    box-shadow: var(--shadow-sm);
}
.top-bar-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 600;
    font-size: 1.05rem;
}
.brand i { color: var(--accent); font-size: 1.3rem; }
.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.user-menu a { color: #fff; opacity: 0.85; font-size: 1.1rem; }
.user-menu a:hover { opacity: 1; }
.user-greeting { font-size: 0.9rem; opacity: 0.9; }

/* ----------- Main Nav ----------- */
.main-nav {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
}
.nav-module {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 1.2rem 0.9rem 0;
    color: var(--text);
    font-size: 1rem;
    border-right: 1px solid var(--border);
    margin-right: 1rem;
}
.nav-module i { color: var(--text-muted); }
.nav-links {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    flex: 1;
}
.nav-links > li { position: relative; }
.nav-links > li > a {
    display: block;
    padding: 0.95rem 1rem;
    color: var(--text);
    font-size: 0.93rem;
    border-bottom: 2px solid transparent;
    transition: color 0.15s, border-color 0.15s;
}
.nav-links > li > a:hover { color: var(--primary); }
.nav-links > li > a.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}
.nav-links .has-sub > a i { font-size: 0.7rem; margin-left: 0.2rem; opacity: 0.6; }
.nav-links .sub {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    list-style: none;
    min-width: 180px;
    padding: 0.4rem 0;
    display: none;
    z-index: 100;
}
.nav-links .has-sub:hover .sub { display: block; }
.nav-links .sub a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text);
    font-size: 0.9rem;
}
.nav-links .sub a:hover { background: var(--primary-light); color: var(--primary); }

/* ----------- Main Content ----------- */
.main-content {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem;
    flex: 1;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

/* ----------- Stat Cards (like screenshot) ----------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.stat-card-body { padding: 1.3rem 1.5rem 1.5rem; }
.stat-value { font-size: 2.4rem; font-weight: 600; color: var(--text); line-height: 1; margin-bottom: 0.3rem; }
.stat-label { color: var(--text-muted); font-size: 0.95rem; }
.stat-action {
    display: block;
    background: var(--primary);
    color: #fff;
    text-align: center;
    padding: 0.75rem;
    font-size: 0.9rem;
    transition: background 0.15s;
}
.stat-action:hover { background: var(--primary-dark); color: #fff; }

/* ----------- Panel / Card ----------- */
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1.2rem;
}
.panel-header {
    padding: 0.9rem 1.2rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
}
.panel-header h3 {
    font-size: 0.95rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text);
    font-weight: 600;
}
.panel-header h3 i { color: var(--text-muted); }
.panel-body { padding: 1.2rem; }
.panel-body.empty { color: var(--text-muted); text-align: left; }

/* ----------- Tables ----------- */
.table-wrap { overflow-x: auto; }
table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
}
table th, table td {
    padding: 0.7rem 0.9rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}
table th {
    background: #fafbfc;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
table tbody tr:hover { background: #f9fafb; }
table td.actions { white-space: nowrap; text-align: right; }
table td.actions a {
    margin-left: 0.5rem;
    color: var(--text-muted);
}
table td.actions a:hover { color: var(--primary); }
table td.actions a.danger:hover { color: var(--danger); }

/* ----------- Buttons ----------- */
.btn {
    display: inline-block;
    padding: 0.55rem 1rem;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    background: none;
    font-family: inherit;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #1d8a47; color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #a32e2e; color: #fff; }
.btn-secondary { background: #fff; border-color: var(--border); color: var(--text); }
.btn-secondary:hover { background: #f5f7fa; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.82rem; }

/* ----------- Forms ----------- */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}
.form-group { margin-bottom: 1rem; }
.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.35rem;
    color: var(--text);
    font-size: 0.88rem;
}
.form-group label .req { color: var(--danger); }
.form-control {
    width: 100%;
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.92rem;
    font-family: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
    background: #fff;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(50, 115, 220, 0.15);
}
textarea.form-control { resize: vertical; min-height: 80px; }
.form-help { font-size: 0.82rem; color: var(--text-muted); margin-top: 0.3rem; }
.form-actions { display: flex; gap: 0.6rem; margin-top: 1rem; }

/* ----------- Alerts ----------- */
.alert {
    padding: 0.8rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.alert-success { background: #e8f6ee; color: #176b36; border-left: 3px solid var(--success); }
.alert-error   { background: #fbebeb; color: #902727; border-left: 3px solid var(--danger); }
.alert-info    { background: #e7f0fb; color: #1d4e94; border-left: 3px solid var(--primary); }
.alert-warning { background: #fff4e0; color: #8a5800; border-left: 3px solid var(--warning); }

/* ----------- Badges ----------- */
.badge {
    display: inline-block;
    padding: 0.22em 0.55em;
    border-radius: 3px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.badge-success { background: #dff3e5; color: #176b36; }
.badge-warning { background: #fef0d3; color: #8a5800; }
.badge-danger  { background: #fbdcdc; color: #902727; }
.badge-info    { background: #d6e6fa; color: #1d4e94; }
.badge-muted   { background: #eaedf0; color: #5b6672; }

/* ----------- Login page ----------- */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2c3e50 0%, #3273dc 100%);
    padding: 1rem;
}
.login-box {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    width: 100%;
    max-width: 400px;
    padding: 2.5rem 2rem 2rem;
}
.login-box .brand {
    justify-content: center;
    color: var(--text);
    font-size: 1.3rem;
    margin-bottom: 2rem;
}
.login-box h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--text-muted);
}
.login-box .btn-primary { width: 100%; padding: 0.7rem; font-size: 0.95rem; }

/* ----------- Layout helpers ----------- */
.row { display: flex; gap: 1rem; flex-wrap: wrap; }
.col { flex: 1; min-width: 280px; }
.col-4 { flex: 0 0 calc(33.333% - 0.67rem); min-width: 280px; }
.col-6 { flex: 0 0 calc(50% - 0.5rem); min-width: 280px; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.5rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }

/* ----------- Calendar ----------- */
#leave-calendar {
    background: #fff;
}
.fc .fc-toolbar-title { font-size: 1.1rem; color: var(--text); }
.fc .fc-button-primary {
    background: #fff;
    border-color: var(--border);
    color: var(--text);
}
.fc .fc-button-primary:not(:disabled).fc-button-active,
.fc .fc-button-primary:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

/* ----------- Footer ----------- */
.site-footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 1rem 0;
    margin-top: 2rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* ----------- Hamburger button (hidden on desktop) ----------- */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 0.4rem 0.6rem;
    font-size: 1.3rem;
    margin-right: 0.3rem;
    border-radius: 4px;
}
.nav-toggle:hover { background: rgba(255, 255, 255, 0.1); }

/* Close button inside drawer header — hidden on desktop, shown in mobile media query */
.nav-close {
    display: none;
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 0 0.3rem;
    line-height: 1;
}

/* Nav drawer backdrop */
.nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.2s;
}
.nav-backdrop.open {
    display: block;
    opacity: 1;
}

/* ----------- Tablet (≤1024px): compact horizontal scroll ----------- */
@media (max-width: 1024px) {
    .top-bar-inner,
    .nav-inner,
    .footer-inner {
        padding: 0 1rem;
    }
    .brand-logo-img { height: 30px; max-width: 140px; }
    .user-greeting { display: none; }  /* save horizontal space */
    .nav-links > li > a { padding: 0.8rem 0.7rem; font-size: 0.88rem; }
    .main-content { padding: 1rem; }
}

/* ----------- Mobile (≤768px): full hamburger drawer ----------- */
@media (max-width: 768px) {
    /* Show hamburger + close button */
    .nav-toggle { display: inline-flex !important; align-items: center; justify-content: center; }

    /* Reshape top bar so hamburger sits on left */
    .top-bar-inner { padding: 0 0.75rem; }
    .brand { font-size: 0.95rem; flex: 1; min-width: 0; justify-content: center; }
    .brand span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .brand-logo-img { height: 28px; max-width: 110px; }
    .user-menu a { font-size: 1.1rem; }

    /* Nav becomes an off-canvas drawer — use !important to beat any cached/conflicting rules */
    nav.main-nav {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        height: 100vh !important;
        width: 280px !important;
        max-width: 85vw !important;
        background: #fff !important;
        border-right: 1px solid var(--border);
        border-bottom: none !important;
        box-shadow: 2px 0 12px rgba(0, 0, 0, 0.1);
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        z-index: 999 !important;
        overflow-y: auto;
        margin: 0 !important;
    }
    nav.main-nav.open { transform: translateX(0) !important; }

    /* Stack drawer contents vertically */
    .nav-inner {
        flex-direction: column;
        align-items: stretch;
        padding: 0;
        max-width: none;
    }

    /* Drawer header with close button */
    .nav-module {
        background: var(--primary);
        color: #fff;
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.15);
        padding: 1.1rem 1.25rem;
        margin-right: 0;
        font-size: 1.05rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .nav-module i { color: rgba(255,255,255,0.9); }
    .nav-close {
        display: inline-block;
        font-size: 1.4rem;
    }

    /* Nav items stack vertically */
    .nav-links {
        flex-direction: column;
        flex: 1;
        overflow-y: auto;
        padding: 0.4rem 0;
    }
    .nav-links > li {
        border-bottom: 1px solid #f0f2f5;
    }
    .nav-links > li > a {
        padding: 0.95rem 1.25rem;
        font-size: 0.95rem;
        white-space: normal;
        border-bottom: none;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .nav-links > li > a.active {
        background: var(--primary-light);
        color: var(--primary);
        border-bottom: none;
        font-weight: 600;
    }

    /* Submenus expand inline (accordion style) */
    .nav-links .sub {
        position: static !important;
        box-shadow: none;
        border: none;
        display: none;
        background: #fafbfc;
        padding: 0.2rem 0;
        border-radius: 0;
        min-width: 0;
    }
    /* Order matters: kill desktop hover FIRST, then enable mobile-open */
    .nav-links .has-sub:hover > .sub { display: none !important; }
    .nav-links .has-sub.mobile-open > .sub { display: block !important; }
    .nav-links .has-sub.mobile-open > a i.fa-chevron-down {
        transform: rotate(180deg);
    }
    .nav-links .has-sub > a i.fa-chevron-down {
        transition: transform 0.2s;
    }
    .nav-links .sub a {
        padding: 0.65rem 2rem !important;
        font-size: 0.88rem !important;
        color: var(--text) !important;
        display: block !important;
        background: transparent !important;
    }
    .nav-links .sub a:hover {
        background: var(--primary-light) !important;
        color: var(--primary) !important;
    }

    .main-content { padding: 0.75rem; }
    .stat-value { font-size: 1.8rem; }

    /* Stat cards stack on small screens */
    .stat-grid { grid-template-columns: 1fr; }

    /* Tables scroll horizontally but keep readable */
    table th, table td { padding: 0.6rem 0.7rem; font-size: 0.85rem; }

    /* Form grid collapses to single column */
    .form-grid { grid-template-columns: 1fr; }

    /* Page header stacks */
    .page-header { flex-direction: column; align-items: flex-start; }
    .page-header > div { width: 100%; }

    /* Panel headers don't overflow */
    .panel-header { flex-wrap: wrap; gap: 0.5rem; }

    /* Login box fits smaller screens */
    .login-box { padding: 1.8rem 1.3rem 1.5rem; }
}

/* ----------- Extra small phones (≤480px) ----------- */
@media (max-width: 480px) {
    .brand span { display: none; }  /* show only logo/icon */
    .brand-logo-img { max-width: 90px; }
    .page-header h1 { font-size: 1.3rem; }
    .stat-value { font-size: 1.5rem; }
    .footer-inner { flex-direction: column; text-align: center; font-size: 0.78rem; }
}