/* ─── Shell & Main Layout ─────────────────────────────────────────────────── */
.erp-shell { display: flex; flex-direction: column; min-height: 100vh; }
.erp-main { flex: 1; min-width: 0; background: var(--erp-bg); }
.erp-content { padding: var(--erp-space-5) var(--erp-space-6); max-width: 1600px; }

/* ─── Top Navigation — Row 1 (dark bar) ──────────────────────────────────── */
.erp-topnav {
    display: flex;
    flex-direction: column;
    background: #1a2332;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
    flex-shrink: 0;
}

.erp-topnav-row1 {
    display: flex;
    align-items: center;
    height: 48px;
    padding: 0 20px;
    gap: 12px;
}

.erp-topnav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.04em;
    white-space: nowrap;
    margin-right: 16px;
    flex-shrink: 0;
}
.erp-topnav-brand i { font-size: 16px; color: #60a5fa; }

.erp-topnav-modules {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: none;
    --nav-font-size: 13px;
    --nav-pad-x: 13px;
}
.erp-topnav-modules::-webkit-scrollbar { display: none; }

/* Row 2 of pinned modules (manual "two-row" nav customization) */
.erp-topnav-row2 {
    display: flex;
    align-items: center;
    background: #202b3d;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0 20px;
    height: 0;
    overflow: hidden;
}
.erp-topnav-row2.has-items {
    height: 40px;
}
.erp-topnav-modules-row2 {
    flex: 1;
}

.erp-topnav-module {
    color: rgba(255, 255, 255, 0.72);
    font-size: var(--nav-font-size, 13px);
    font-weight: 500;
    padding: 5px var(--nav-pad-x, 13px);
    border-radius: 5px;
    white-space: nowrap;
    text-decoration: none;
    transition: background 0.12s, color 0.12s, font-size 0.1s, padding 0.1s;
}
.erp-topnav-module:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    text-decoration: none;
}
.erp-topnav-module.is-active {
    background: rgba(96, 165, 250, 0.18);
    color: #93c5fd;
    font-weight: 600;
}

.erp-topnav-more {
    position: relative;
    flex-shrink: 0;
}
.erp-topnav-more-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}
.erp-topnav-more-menu {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 190px;
    max-height: 70vh;
    overflow-y: auto;
    background: #1b2635;
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 6px;
    padding: 5px 0;
    box-shadow: 0 10px 28px rgba(0,0,0,0.4);
    z-index: 1000;
}
.erp-topnav-more-menu.is-open { display: block; }
.erp-topnav-more-menu a {
    display: block;
    padding: 8px 14px;
    color: #c2d2e5;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    text-decoration: none;
    border-left: 2px solid transparent;
}
.erp-topnav-more-menu a:hover,
.erp-topnav-more-menu a.is-active {
    background: rgba(255,255,255,0.07);
    color: #fff;
    border-left-color: #4a90d9;
    text-decoration: none;
}

.erp-topnav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    margin-left: auto;
}
.erp-topnav-user-info {
    display: flex;
    align-items: center;
    gap: 7px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    font-weight: 500;
}
.erp-topnav-user-info i { font-size: 15px; color: rgba(255,255,255,0.5); }

.erp-topnav-logout {
    display: flex;
    align-items: center;
    gap: 5px;
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.16);
    color: rgba(255, 255, 255, 0.8);
    font-size: 12px;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.erp-topnav-logout:hover {
    background: rgba(239, 68, 68, 0.22);
    border-color: rgba(239, 68, 68, 0.38);
    color: #fca5a5;
}

/* ─── Sub Navigation — Row 2 (light bar) ─────────────────────────────────── */
.erp-subnav {
    display: flex;
    align-items: center;
    gap: 0;
    background: #232f42;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    padding: 0 20px;
    height: 36px;
    overflow-x: auto;
    scrollbar-width: none;
}
.erp-subnav::-webkit-scrollbar { display: none; }

.erp-subnav-link {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
    font-weight: 500;
    padding: 0 13px;
    height: 36px;
    line-height: 36px;
    white-space: nowrap;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: color 0.12s, border-color 0.12s;
}
.erp-subnav-link:hover {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
}
.erp-subnav-link.is-active {
    color: #fff;
    border-bottom-color: #60a5fa;
    font-weight: 600;
}

/* ─── Breadcrumbs ─────────────────────────────────────────────────────────── */
.erp-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: var(--erp-space-3);
    font-size: var(--erp-font-sm);
    color: var(--erp-text-secondary);
}
.erp-breadcrumbs .current { color: var(--erp-text-primary); font-weight: 600; }

/* ─── Legacy sidebar — hidden ─────────────────────────────────────────────── */
.erp-sidebar { display: none; }
.erp-icon-btn {
    border: 1px solid var(--erp-border);
    background: var(--erp-surface);
    color: var(--erp-text-secondary);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    cursor: pointer;
}

.erp-topnav-brand {
    display: flex;
    align-items: center;
    gap: var(--erp-space-2);
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.04em;
    white-space: nowrap;
    margin-right: var(--erp-space-5);
    text-decoration: none;
}
.erp-topnav-brand i {
    font-size: 16px;
    color: #60a5fa;
}

.erp-topnav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    overflow-x: auto;
    scrollbar-width: none;
}
.erp-topnav-links::-webkit-scrollbar { display: none; }

.erp-topnav-link {
    color: rgba(255, 255, 255, 0.78);
    font-size: 13px;
    font-weight: 500;
    padding: 6px 13px;
    border-radius: var(--erp-radius-sm);
    white-space: nowrap;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}
.erp-topnav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    text-decoration: none;
}
.erp-topnav-link.is-active {
    background: rgba(96, 165, 250, 0.2);
    color: #93c5fd;
    font-weight: 600;
}

.erp-topnav-actions {
    display: flex;
    align-items: center;
    gap: var(--erp-space-3);
    flex-shrink: 0;
    margin-left: auto;
}

.erp-topnav-user-info {
    display: flex;
    align-items: center;
    gap: var(--erp-space-2);
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    font-weight: 500;
}
.erp-topnav-user-info i { font-size: 16px; color: rgba(255, 255, 255, 0.6); }

.erp-topnav-logout {
    display: flex;
    align-items: center;
    gap: var(--erp-space-1);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: rgba(255, 255, 255, 0.85);
    font-size: 12px;
    font-weight: 500;
    padding: 5px 11px;
    border-radius: var(--erp-radius-sm);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.erp-topnav-logout:hover {
    background: rgba(239, 68, 68, 0.25);
    border-color: rgba(239, 68, 68, 0.4);
    color: #fca5a5;
}

/* ─── Breadcrumbs ─────────────────────────────────────────────────────────── */
.erp-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: var(--erp-space-3);
    font-size: var(--erp-font-sm);
    color: var(--erp-text-secondary);
}
.erp-breadcrumbs .current { color: var(--erp-text-primary); font-weight: 600; }

/* ─── Legacy sidebar rules kept for any overriding templates ──────────────── */
.erp-sidebar { display: none; }
.erp-icon-btn {
    border: 1px solid var(--erp-border);
    background: var(--erp-surface);
    color: var(--erp-text-secondary);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    cursor: pointer;
}