/* =====================================================================
   NES HR — Stylesheet
   Brand colors extracted directly from the official NES logo.
   ===================================================================== */

:root {
    color-scheme: light;
    --brand-primary: #1B2A4A;   /* deep navy — sidebar / headers */
    --brand-primary-dark: #131F38;
    --brand-accent: #E21B30;    /* NES red — matches logo exactly */
    --bg: #F4F6F9;
    --card-bg: #FFFFFF;
    --text: #1F2430;
    --text-muted: #6B7280;
    --border: #E2E5EC;
    --success: #1E8E5A;
    --warning: #C98A1D;
    --danger: #C0392B;
}

/* ---------------- Dark Theme ---------------- */
[data-theme="dark"] {
    color-scheme: dark;
    --brand-primary: #10162B;
    --brand-primary-dark: #0A0E1C;
    --brand-accent: #E21B30;
    --bg: #0F1320;
    --card-bg: #171C2E;
    --text: #E9EBF2;
    --text-muted: #9AA1B5;
    --border: #2A2F42;
    --success: #2FBE7A;
    --warning: #E0A93B;
    --danger: #E15B4E;
}

[data-theme="dark"] body { background: var(--bg); color: var(--text); }
[data-theme="dark"] .login-box { box-shadow: 0 25px 70px rgba(0,0,0,0.7); }
[data-theme="dark"] .panel,
[data-theme="dark"] .stat-card,
[data-theme="dark"] .topbar,
[data-theme="dark"] .login-page { box-shadow: none; }
[data-theme="dark"] .sidebar { border-right: 1px solid var(--border); }
[data-theme="dark"] .topbar { border-bottom-color: var(--border); }
[data-theme="dark"] .btn-secondary { background: #1F2438; color: var(--text); border-color: var(--border); }
[data-theme="dark"] .btn-logout { background: #1F2438; color: var(--text); border-color: var(--border); }
[data-theme="dark"] .data-table th { color: var(--text-muted); }
[data-theme="dark"] .data-table td, [data-theme="dark"] .data-table th { border-color: var(--border); }
[data-theme="dark"] .form-grid input,
[data-theme="dark"] .form-grid select,
[data-theme="dark"] .form-grid textarea,
[data-theme="dark"] .login-box form input {
    background: #0F1320; color: var(--text); border-color: var(--border);
}

/* ---------------- Theme Toggle Button ---------------- */
.theme-toggle {
    display: inline-flex; align-items: center; gap: 0.45rem;
    background: var(--bg); border: 1.5px solid var(--border); color: var(--text);
    padding: 0.45rem 1rem; border-radius: 999px; cursor: pointer;
    font-size: 0.82rem; font-weight: 600; transition: all 0.15s ease;
}
[data-theme="dark"] .theme-toggle { background: #232945; border-color: #363D5C; }
.theme-toggle:hover { border-color: var(--brand-accent); }
.theme-toggle span[data-theme-icon] { font-size: 0.95rem; line-height: 1; }

/* ---------------- Notification Bell ---------------- */
.bell-icon {
    position: relative; font-size: 1.15rem; color: var(--text); line-height: 1;
    display: inline-flex; align-items: center; padding: 0.3rem;
}
.bell-badge {
    position: absolute; top: -4px; right: -4px; background: var(--brand-accent); color: #fff;
    font-size: 0.62rem; font-weight: 700; padding: 1px 4px; border-radius: 999px; line-height: 1.3;
    min-width: 15px; text-align: center;
}


* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    transition: background 0.2s ease, color 0.2s ease;
}

a { color: var(--brand-primary); text-decoration: none; }
[data-theme="dark"] a { color: #B9C2E0; }

/* ---------------- Login Page ---------------- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(160deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
    padding: 1.5rem;
}
.login-box {
    background: var(--card-bg);
    padding: 2.75rem 2.5rem;
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 60px rgba(0,0,0,0.35);
    transition: background 0.2s ease;
}
.login-brand { text-align: center; margin-bottom: 1.75rem; }
.login-brand-top { display: flex; justify-content: flex-end; margin-bottom: 0.5rem; }
.login-brand img { max-width: 120px; margin-bottom: 1rem; }
.login-brand h1 { margin: 0; font-size: 1.5rem; color: var(--text); letter-spacing: -0.02em; }
.login-brand p { margin: 0.3rem 0 0; font-size: 0.85rem; color: var(--text-muted); }

.login-box form label { display: block; margin: 1.1rem 0 0.4rem; font-size: 0.82rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; }
.login-box form input {
    width: 100%; padding: 0.75rem 0.9rem; border: 1.5px solid var(--border);
    border-radius: 8px; font-size: 0.95rem; background: var(--bg); color: var(--text);
    transition: border-color 0.15s ease;
}
.login-box form input:focus { outline: none; border-color: var(--brand-accent); }
.login-box .btn-primary { width: 100%; margin-top: 1.75rem; padding: 0.8rem; font-size: 0.95rem; }

.alert { padding: 0.65rem 0.9rem; border-radius: 8px; font-size: 0.85rem; margin-bottom: 1rem; }
.alert-error { background: #FDEDEB; color: var(--danger); border: 1px solid #F5C6CB; }
[data-theme="dark"] .alert-error { background: #3A1F1E; border-color: #5C2E2C; }
[data-theme="dark"] .stat-number { color: var(--brand-accent); }
[data-theme="dark"] .badge-active, [data-theme="dark"] .badge-present, [data-theme="dark"] .badge-approved {
    background: rgba(47, 190, 122, 0.15);
}
[data-theme="dark"] .badge-on_leave, [data-theme="dark"] .badge-pending, [data-theme="dark"] .badge-half_day, [data-theme="dark"] .badge-late {
    background: rgba(224, 169, 59, 0.15);
}
[data-theme="dark"] .badge-resigned, [data-theme="dark"] .badge-terminated, [data-theme="dark"] .badge-absent, [data-theme="dark"] .badge-rejected {
    background: rgba(225, 91, 78, 0.15);
}

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

.sidebar {
    width: 230px;
    background: var(--brand-primary);
    color: #fff;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}
.sidebar-brand {
    display: flex; align-items: center; gap: 0.6rem;
    padding: 1.25rem 1rem; border-bottom: 1px solid rgba(255,255,255,0.1);
    font-weight: 700; font-size: 1.05rem;
}
.sidebar-brand img { max-height: 32px; }
.sidebar nav { display: flex; flex-direction: column; padding: 0.75rem 0; }
.sidebar nav a {
    color: rgba(255,255,255,0.85); padding: 0.7rem 1.25rem; font-size: 0.92rem;
    border-left: 3px solid transparent;
}
.sidebar nav a:hover { background: rgba(255,255,255,0.06); border-left-color: var(--brand-accent); color: #fff; }

.main-area { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.topbar {
    background: var(--card-bg); border-bottom: 1px solid var(--border);
    padding: 1rem 1.75rem; display: flex; align-items: center; justify-content: space-between;
}
.topbar h1 { margin: 0; font-size: 1.25rem; }
.topbar-user { display: flex; align-items: center; gap: 1rem; font-size: 0.88rem; color: var(--text-muted); }
.btn-logout {
    background: var(--bg); padding: 0.4rem 0.85rem; border-radius: 6px; color: var(--text);
    border: 1px solid var(--border);
}

.content { padding: 1.75rem; flex: 1; }
.app-footer { padding: 1rem 1.75rem; font-size: 0.8rem; color: var(--text-muted); text-align: center; }

/* ---------------- Cards / Panels ---------------- */
.panel {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px;
    padding: 1.5rem; margin-bottom: 1.5rem;
}
.panel h2 { margin-top: 0; font-size: 1.05rem; }
.panel-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.panel-header h2 { margin: 0; }

.stat-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px;
    padding: 1.25rem; text-align: center;
}
.stat-card-alert { border-color: var(--brand-accent); }
.stat-number { display: block; font-size: 2rem; font-weight: 700; color: var(--brand-primary); }
.stat-label { font-size: 0.85rem; color: var(--text-muted); }

.quick-links { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* ---------------- Forms ---------------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem 1.25rem; }
.form-grid .col-span-2 { grid-column: span 2; }
.form-grid label { display: block; margin-bottom: 0.3rem; font-size: 0.85rem; font-weight: 600; }
.form-grid input, .form-grid select, .form-grid textarea {
    width: 100%; padding: 0.55rem 0.7rem; border: 1px solid var(--border); border-radius: 6px; font-size: 0.9rem;
}
.form-actions { display: flex; gap: 0.75rem; margin-top: 0.5rem; }
.inline-form { display: inline-flex; gap: 0.4rem; }

/* ---------------- Buttons ---------------- */
.btn-primary, .btn-secondary, .btn-approve, .btn-reject {
    display: inline-block; padding: 0.55rem 1.1rem; border-radius: 6px; font-size: 0.88rem;
    font-weight: 600; border: none; cursor: pointer; text-align: center;
}
.btn-primary { background: var(--brand-accent); color: #fff; }
.btn-primary:hover { background: #B91527; }
.btn-secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-approve { background: var(--success); color: #fff; }
.btn-reject { background: var(--danger); color: #fff; }

/* ---------------- Tables ---------------- */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.data-table th, .data-table td { padding: 0.65rem 0.75rem; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th { color: var(--text-muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; }
.empty-state { text-align: center; color: var(--text-muted); padding: 1.5rem !important; }

.badge { padding: 0.2rem 0.6rem; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.badge-active, .badge-present, .badge-approved { background: #E4F5EC; color: var(--success); }
.badge-on_leave, .badge-pending, .badge-half_day { background: #FDF3E3; color: var(--warning); }
.badge-resigned, .badge-terminated, .badge-absent, .badge-rejected { background: #FDEDEB; color: var(--danger); }
.badge-late { background: #FDF3E3; color: var(--warning); }

/* ---------------- Responsive ---------------- */
@media (max-width: 768px) {
    .app-shell { flex-direction: column; }
    .sidebar { width: 100%; }
    .form-grid { grid-template-columns: 1fr; }
    .form-grid .col-span-2 { grid-column: span 1; }
}