/* assets/css/style.css */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

:root {
    --bg-base:        #0d0f12;
    --bg-panel:       #13161b;
    --bg-card:        #191d24;
    --bg-hover:       #1f242d;
    --border:         #252b35;
    --border-light:   #2e3544;

    --accent:         #00e5a0;
    --accent-dim:     rgba(0,229,160,.12);
    --accent-glow:    rgba(0,229,160,.25);
    --warn:           #ffb830;
    --warn-dim:       rgba(255,184,48,.12);
    --danger:         #ff4757;
    --danger-dim:     rgba(255,71,87,.12);
    --info:           #4da6ff;
    --info-dim:       rgba(77,166,255,.12);

    --text-primary:   #e8ecf1;
    --text-secondary: #7d8a9a;
    --text-muted:     #4a5568;

    --font-sans: 'IBM Plex Sans', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 4px 24px rgba(0,0,0,.4);
}

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

html { font-size: 15px; }
body {
    font-family: var(--font-sans);
    background: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
}

/* ── Layout ─────────────────────────────────────────────── */
.wrapper { display: flex; min-height: 100vh; }

.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
}

.sidebar-logo {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar-logo .logo-icon {
    width: 32px; height: 32px;
    background: var(--accent);
    border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    color: #000;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
}
.sidebar-logo h1 {
    font-size: .85rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: .03em;
    line-height: 1.2;
}
.sidebar-logo span {
    font-size: .7rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.sidebar-nav { padding: 12px 0; flex: 1; overflow-y: auto; }
.nav-section { padding: 16px 20px 6px; font-size: .65rem; font-weight: 600; color: var(--text-muted); letter-spacing: .1em; text-transform: uppercase; }
.nav-item {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: .82rem;
    font-weight: 500;
    transition: all .15s;
    border-left: 3px solid transparent;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--accent-dim); color: var(--accent); border-left-color: var(--accent); }
.nav-item .icon { width: 16px; text-align: center; opacity: .7; }
.nav-item.active .icon { opacity: 1; }

.main { margin-left: 240px; flex: 1; display: flex; flex-direction: column; }

.topbar {
    height: 60px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 28px;
    background: var(--bg-base);
    position: sticky; top: 0; z-index: 50;
}
.page-title { font-size: 1rem; font-weight: 600; }
.topbar-meta { font-size: .75rem; color: var(--text-muted); font-family: var(--font-mono); }

.content { padding: 28px; flex: 1; }

/* ── Cards ──────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    gap: 10px;
}
.card-title { font-size: .85rem; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.card-body { padding: 20px; }

/* ── Stats grid ─────────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(180px,1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    position: relative;
    overflow: hidden;
}
.stat-card::after {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: var(--c, var(--accent));
}
.stat-card.warn { --c: var(--warn); }
.stat-card.danger { --c: var(--danger); }
.stat-card.info { --c: var(--info); }
.stat-label { font-size: .7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 8px; }
.stat-value { font-size: 1.6rem; font-weight: 700; font-family: var(--font-mono); color: var(--text-primary); }
.stat-sub { font-size: .72rem; color: var(--text-secondary); margin-top: 4px; }

/* ── Table ──────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .8rem; }
thead th {
    padding: 10px 14px;
    text-align: left;
    font-size: .68rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    background: var(--bg-panel);
    white-space: nowrap;
}
tbody td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--bg-hover); color: var(--text-primary); }
.mono { font-family: var(--font-mono); font-size: .78rem; }

/* ── Badges ─────────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: .68rem;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
    font-family: var(--font-mono);
}
.badge-present  { background: var(--accent-dim); color: var(--accent); }
.badge-late     { background: var(--warn-dim);   color: var(--warn);   }
.badge-absent   { background: var(--danger-dim); color: var(--danger); }
.badge-leave    { background: var(--info-dim);   color: var(--info);   }
.badge-weekend  { background: rgba(147,51,234,.15); color: #c084fc; }
.badge-holiday  { background: rgba(251,146,60,.15); color: #fb923c; }
.badge-halfday  { background: rgba(52,211,153,.12); color: #34d399; }
.badge-pending  { background: var(--warn-dim);   color: var(--warn);   }
.badge-approved { background: var(--accent-dim); color: var(--accent); }
.badge-rejected { background: var(--danger-dim); color: var(--danger); }

/* ── Forms ──────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(220px,1fr)); gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: .75rem; font-weight: 500; color: var(--text-secondary); }
.form-group input, .form-group select, .form-group textarea {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 9px 12px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: .82rem;
    transition: border-color .15s;
    outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group input[type="time"] { font-family: var(--font-mono); }
.form-group select option { background: var(--bg-card); }

/* ── Buttons ────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: none; cursor: pointer;
    font-family: var(--font-sans);
    font-size: .8rem; font-weight: 600;
    transition: all .15s;
    text-decoration: none;
}
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { filter: brightness(1.1); box-shadow: 0 0 16px var(--accent-glow); }
.btn-secondary { background: var(--bg-hover); color: var(--text-primary); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: var(--danger-dim); color: var(--danger); border: 1px solid var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 5px 11px; font-size: .75rem; }
.btn-warn { background: var(--warn-dim); color: var(--warn); border: 1px solid var(--warn); }

/* ── Alerts ─────────────────────────────────────────────── */
.alert { padding: 12px 16px; border-radius: var(--radius); font-size: .82rem; margin-bottom: 16px; display: flex; align-items: flex-start; gap: 10px; }
.alert-success { background: var(--accent-dim); border: 1px solid rgba(0,229,160,.3); color: var(--accent); }
.alert-error   { background: var(--danger-dim); border: 1px solid rgba(255,71,87,.3); color: var(--danger); }
.alert-warn    { background: var(--warn-dim);   border: 1px solid rgba(255,184,48,.3); color: var(--warn);   }
.alert-info    { background: var(--info-dim);   border: 1px solid rgba(77,166,255,.3); color: var(--info);   }

/* ── Pagination ─────────────────────────────────────────── */
.pagination { display: flex; gap: 6px; align-items: center; justify-content: flex-end; margin-top: 16px; flex-wrap: wrap; }
.page-btn { padding: 6px 11px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--bg-panel); color: var(--text-secondary); font-size: .78rem; cursor: pointer; text-decoration: none; transition: all .15s; }
.page-btn:hover, .page-btn.active { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.page-btn.disabled { opacity: .4; pointer-events: none; }

/* ── Misc helpers ───────────────────────────────────────── */
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-mono { font-family: var(--font-mono); }
hr.divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* ── Calc preview box ───────────────────────────────────── */
.calc-preview {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    margin-top: 16px;
    display: grid;
    grid-template-columns: repeat(auto-fill,minmax(160px,1fr));
    gap: 12px;
}
.calc-item .ci-label { font-size: .67rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .06em; }
.calc-item .ci-value { font-family: var(--font-mono); font-size: .9rem; color: var(--text-primary); margin-top: 2px; }
.calc-item .ci-value.green { color: var(--accent); }
.calc-item .ci-value.yellow { color: var(--warn); }
.calc-item .ci-value.red { color: var(--danger); }

/* ── Responsive ─────────────────────────────────────────── */
@media(max-width:768px){
    .sidebar { width: 100%; height: auto; position: relative; flex-direction: row; flex-wrap: wrap; }
    .main { margin-left: 0; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .form-grid { grid-template-columns: 1fr; }
}