:root {
    --navy-950: #061224;
    --navy-900: #0B1F3A;
    --navy-800: #122B4D;
    --navy-700: #1C3D6B;
    --ivory-50: #FAF8F5;
    --ivory-100: #F3EFEA;
    --ivory-200: #E5DEC9;
    --gold-600: #B58E1E;
    --gold-500: #D4AF37;
    --gold-400: #E6C65A;
    --gold-100: #FDF8E7;
    --text-dark: #0F172A;
    --text-muted: #475569;
    --success: #15803D;
    --success-bg: #DCFCE7;
    --danger: #B91C1C;
    --danger-bg: #FEE2E2;
    --warning: #B45309;
    --warning-bg: #FEF3C7;
    --border: #E2E8F0;
    --radius: 12px;
    --shadow: 0 4px 16px rgba(11, 31, 58, 0.07);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans Devanagari", sans-serif;
    background-color: var(--ivory-50);
    color: var(--text-dark);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Auth & Install Layout */
.auth-body {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--navy-950) 0%, var(--navy-900) 60%, var(--navy-800) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-wrapper, .install-container {
    width: 100%;
    max-width: 480px;
}

.install-container {
    max-width: 820px;
}

.install-header {
    display: flex;
    align-items: center;
    gap: 16px;
    color: #fff;
    margin-bottom: 20px;
}

.brand-badge, .brand-emblem {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
    color: var(--navy-950);
    font-weight: 900;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.35);
    flex-shrink: 0;
}

.login-card, .install-card {
    background: var(--ivory-50);
    border-radius: 18px;
    padding: 32px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    border: 2px solid rgba(212, 175, 55, 0.35);
}

.login-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border);
}

.login-brand h1 {
    font-size: 22px;
    color: var(--navy-900);
    letter-spacing: 0.5px;
}

.login-brand p {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
}

.gold-pill {
    display: inline-block;
    background: var(--gold-100);
    color: var(--gold-600);
    border: 1px solid var(--gold-500);
    font-size: 10px;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 99px;
    margin-bottom: 4px;
}

.login-footer {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

/* Main App Shell */
.erp-layout {
    display: flex;
    min-height: 100vh;
}

/* Left Sidebar Navigation */
.erp-sidebar {
    width: 265px;
    background: var(--navy-900);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
    transition: transform 0.25s ease;
}

.sidebar-brand {
    padding: 18px 20px;
    background: var(--navy-950);
    border-bottom: 1px solid rgba(212, 175, 55, 0.25);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-brand .brand-emblem {
    width: 42px;
    height: 42px;
    font-size: 17px;
    border-radius: 10px;
}

.sidebar-brand h2 {
    font-size: 16px;
    font-weight: 800;
    color: var(--gold-400);
    letter-spacing: 0.4px;
}

.sidebar-brand p {
    font-size: 11px;
    color: #cbd5e1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 175px;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 10px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    color: #e2e8f0;
    text-decoration: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    transition: all 0.15s ease;
}

.nav-item:hover {
    background: var(--navy-800);
    color: var(--gold-400);
}

.nav-item.active {
    background: linear-gradient(90deg, var(--gold-500), var(--gold-400));
    color: var(--navy-950);
    font-weight: 800;
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

.nav-icon {
    font-size: 17px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 14px 16px;
    background: var(--navy-950);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 12px;
}

/* Main Content Area */
.erp-main {
    flex: 1;
    margin-left: 265px;
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding-bottom: 80px;
}

/* Topbar */
.erp-topbar {
    background: #fff;
    border-bottom: 2px solid var(--ivory-200);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 80;
    box-shadow: 0 2px 10px rgba(11, 31, 58, 0.04);
}

.global-search-box {
    flex: 1;
    max-width: 520px;
    position: relative;
}

.global-search-box input {
    width: 100%;
    padding: 10px 16px 10px 38px;
    border-radius: 99px;
    border: 1.5px solid var(--border);
    background: var(--ivory-50);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.global-search-box input:focus {
    border-color: var(--navy-800);
    background: #fff;
}

.global-search-box .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

/* Content Container */
.erp-content {
    padding: 24px;
    max-width: 1440px;
    width: 100%;
    margin: 0 auto;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
    flex-wrap: wrap;
}

.page-title h1 {
    font-size: 22px;
    font-weight: 800;
    color: var(--navy-900);
}

.page-title p {
    font-size: 13px;
    color: var(--text-muted);
}

/* Cards & Grids */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 18px 20px;
    border: 1px solid var(--border);
    border-left: 5px solid var(--navy-900);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.kpi-card.gold { border-left-color: var(--gold-500); }
.kpi-card.green { border-left-color: var(--success); }
.kpi-card.red { border-left-color: var(--danger); }

.kpi-label {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.4px;
}

.kpi-value {
    font-size: 24px;
    font-weight: 900;
    color: var(--navy-900);
    margin: 6px 0 4px;
}

.kpi-sub {
    font-size: 12px;
    color: var(--text-muted);
}

.card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    margin-bottom: 22px;
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    background: var(--ivory-100);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.card-header h2, .card-header h3 {
    font-size: 16px;
    font-weight: 800;
    color: var(--navy-900);
}

.card-body {
    padding: 20px;
}

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

.erp-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.erp-table th {
    background: var(--navy-900);
    color: #fff;
    font-weight: 700;
    text-align: left;
    padding: 11px 14px;
    white-space: nowrap;
}

.erp-table td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.erp-table tr:hover td {
    background-color: var(--gold-100);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 99px;
    font-size: 11.5px;
    font-weight: 700;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-navy { background: #E0E7FF; color: var(--navy-900); }
.badge-gold { background: var(--gold-100); color: var(--gold-600); border: 1px solid var(--gold-500); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 16px;
    border-radius: 9px;
    font-size: 13.5px;
    font-weight: 700;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.btn-sm { padding: 5px 10px; font-size: 12px; border-radius: 7px; }
.btn-lg { padding: 12px 22px; font-size: 15px; }

.btn-navy {
    background: var(--navy-900);
    color: #fff;
}
.btn-navy:hover { background: var(--navy-800); }

.btn-gold {
    background: linear-gradient(135deg, var(--gold-500), var(--gold-600));
    color: var(--navy-950);
    font-weight: 800;
}
.btn-gold:hover { filter: brightness(1.05); }

.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline {
    background: #fff;
    border-color: var(--border);
    color: var(--navy-900);
}
.btn-outline:hover { background: var(--ivory-100); }

/* Forms */
.erp-form .form-group {
    margin-bottom: 15px;
}

.erp-form label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--navy-900);
    margin-bottom: 5px;
}

.erp-form input[type="text"],
.erp-form input[type="number"],
.erp-form input[type="date"],
.erp-form input[type="email"],
.erp-form input[type="url"],
.erp-form input[type="password"],
.erp-form input[type="file"],
.erp-form select,
.erp-form textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    color: var(--text-dark);
    outline: none;
}

.erp-form input:focus,
.erp-form select:focus,
.erp-form textarea:focus {
    border-color: var(--navy-800);
    box-shadow: 0 0 0 3px rgba(11, 31, 58, 0.08);
}

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.section-title {
    font-size: 15px;
    font-weight: 800;
    color: var(--navy-900);
    padding-bottom: 6px;
    border-bottom: 2px solid var(--gold-500);
    margin-bottom: 12px;
}

.form-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

/* Alerts */
.alert {
    padding: 14px 18px;
    border-radius: 10px;
    margin-bottom: 18px;
    font-size: 14px;
    font-weight: 600;
}
.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid #86efac; }
.alert-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid #fca5a5; }
.alert-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid #fde68a; }

/* Modal */
.erp-modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(6, 18, 36, 0.65);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 16px;
    overflow-y: auto;
}
.erp-modal-backdrop.open {
    display: flex;
}
.erp-modal {
    background: #fff;
    border-radius: 16px;
    max-width: 860px;
    width: 100%;
    max-height: 92vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
    border: 2px solid var(--gold-500);
}
.erp-modal-header {
    padding: 16px 22px;
    background: var(--navy-900);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.erp-modal-body {
    padding: 22px;
}

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--navy-900);
    border-top: 2px solid var(--gold-500);
    z-index: 120;
    justify-content: space-around;
    padding: 6px 4px;
}

.mobile-bottom-nav a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 4px 8px;
    border-radius: 8px;
}

.mobile-bottom-nav a.active {
    color: var(--gold-400);
}

.mobile-menu-btn {
    display: none;
    background: var(--navy-900);
    color: #fff;
    border: none;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 18px;
    cursor: pointer;
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
    .erp-sidebar {
        transform: translateX(-100%);
    }
    .erp-sidebar.open {
        transform: translateX(0);
    }
    .erp-main {
        margin-left: 0;
    }
    .mobile-bottom-nav {
        display: flex;
    }
    .mobile-menu-btn {
        display: inline-flex;
    }
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    .erp-content {
        padding: 14px;
    }
}

@media print {
    .erp-sidebar, .erp-topbar, .mobile-bottom-nav, .no-print {
        display: none !important;
    }
    .erp-main {
        margin-left: 0 !important;
        padding: 0 !important;
    }
    body {
        background: #fff !important;
    }
}