:root {
    --sr-primary: #EB691C;
    --sr-primary-hover: #C05615;
    --sr-primary-subtle: #FBE7D8;

    --sr-text-strong: #1b1b1b;
    --sr-text-medium: #575856;
    --sr-text-muted: #888888;

    --sr-border: #cccccc;
    --sr-border-light: #e5e5e7;
    --sr-sidebar-bg: #f3f3f5;
    --sr-page-bg: #ffffff;

    --bs-primary: var(--sr-primary);
    --bs-primary-rgb: 235, 105, 28;
    --bs-body-color: var(--sr-text-strong);
    --bs-body-font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.btn-primary {
    --bs-btn-bg: var(--sr-primary);
    --bs-btn-border-color: var(--sr-primary);
    --bs-btn-hover-bg: var(--sr-primary-hover);
    --bs-btn-hover-border-color: var(--sr-primary-hover);
    --bs-btn-active-bg: var(--sr-primary-hover);
    --bs-btn-active-border-color: var(--sr-primary-hover);
    --bs-btn-disabled-bg: var(--sr-primary);
    --bs-btn-disabled-border-color: var(--sr-primary);
}

a { color: var(--sr-primary); }
a:hover { color: var(--sr-primary-hover); }

.text-warning { color: var(--sr-primary) !important; }

.sr-layout {
    display: flex;
    min-height: 100vh;
}

.sr-sidebar {
    width: 260px;
    background: var(--sr-sidebar-bg);
    border-right: 0.5px solid var(--sr-border);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

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

.sr-topbar {
    position: sticky;
    top: 0;
    background: white;
    border-bottom: 0.5px solid var(--sr-border);
    padding: 0.6rem 1.25rem;
    display: flex;
    align-items: center;
    z-index: 100;
    min-height: 56px;
}

.sr-content {
    padding: 1.5rem;
    flex: 1;
}

.sr-brand-header {
    padding: 1.25rem;
    border-bottom: 0.5px solid var(--sr-border);
    text-align: center;
    background: white;
}

.sr-brand-header img {
    max-width: 170px;
    height: auto;
}

.sr-nav {
    padding: 0.5rem;
    flex: 1;
    overflow-y: auto;
}

.sr-nav-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.75rem;
    color: var(--sr-text-medium);
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.sr-nav-item:hover {
    background: rgba(0, 0, 0, 0.03);
    color: var(--sr-text-strong);
}

.sr-nav-item.active {
    background: white;
    color: var(--sr-primary);
    font-weight: 500;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.sr-nav-item i {
    font-size: 1rem;
    width: 1.2rem;
    text-align: center;
}

.sr-nav-section {
    padding: 0.7rem 0.75rem 0.3rem;
    font-size: 0.7rem;
    color: var(--sr-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.sr-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 150;
}

@media (max-width: 767.98px) {
    .sr-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        transform: translateX(-100%);
        transition: transform 0.2s ease;
        z-index: 200;
        box-shadow: 2px 0 12px rgba(0, 0, 0, 0.15);
    }

    .sr-sidebar.open {
        transform: translateX(0);
    }

    .sr-backdrop.show {
        display: block;
    }
}

.sr-auth-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sr-sidebar-bg);
    padding: 1rem;
}

.sr-auth-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 2rem 1.75rem;
    width: 100%;
    max-width: 380px;
}

.sr-auth-logo {
    text-align: center;
    margin-bottom: 1.5rem;
}

.sr-auth-logo img {
    max-width: 200px;
    height: auto;
}