:root {
    --bms-primary: #1a56a8;
    --bms-primary-dark: #0f3d7a;
    --bms-primary-light: #2d6fc4;
    --bms-accent: #0ea5a0;
    --bms-bg: #f0f4f8;
    --bms-surface: #ffffff;
    --bms-text: #1e293b;
    --bms-muted: #64748b;
    --bms-border: #e2e8f0;
    --bms-sidebar-width: 250px;
    --bms-header-height: 64px;
    --bms-radius: 12px;
    --bms-shadow: 0 4px 24px rgba(15, 61, 122, 0.08);
}

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

html, body {
    margin: 0;
    padding: 0;
    font-family: "Source Sans 3", "Segoe UI", sans-serif;
    color: var(--bms-text);
    background: var(--bms-bg);
}

a { color: var(--bms-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ========== Login / Register ========== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background:
        radial-gradient(900px 420px at 10% 0%, rgba(26, 86, 168, 0.22), transparent 55%),
        radial-gradient(700px 380px at 95% 90%, rgba(14, 165, 160, 0.14), transparent 50%),
        linear-gradient(160deg, #0f3d7a 0%, #1a56a8 45%, #0ea5a0 120%);
}

.login-container {
    width: 100%;
    max-width: 440px;
}

.login-wrapper { width: 100%; }

.login-logo {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #fff;
}

.login-logo .brand-mark {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    backdrop-filter: blur(8px);
}

.login-title {
    margin: 0 0 0.35rem;
    font-size: 1.65rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.login-subtitle {
    margin: 0;
    opacity: 0.88;
    font-size: 0.95rem;
}

.login-form-card {
    background: var(--bms-surface);
    border-radius: 16px;
    padding: 1.75rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
}

.login-form .form-group { margin-bottom: 1.1rem; }

.form-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--bms-text);
}

.form-label i { color: var(--bms-primary); font-size: 1.05rem; }

.form-input {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border: 1px solid var(--bms-border);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
    background: #fff;
}

.form-input:focus {
    outline: none;
    border-color: var(--bms-primary);
    box-shadow: 0 0 0 3px rgba(26, 86, 168, 0.15);
}

.password-input-wrapper { position: relative; }
.password-input-wrapper .form-input { padding-right: 2.75rem; }

.password-toggle {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    color: var(--bms-muted);
    cursor: pointer;
    padding: 0.35rem;
    font-size: 1.15rem;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    font-size: 0.875rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--bms-muted);
    cursor: pointer;
}

.forgot-password { color: var(--bms-primary); font-weight: 500; }

.login-btn {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.25rem;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--bms-primary) 0%, var(--bms-primary-dark) 100%);
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: transform 0.12s, box-shadow 0.12s;
}

.login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(26, 86, 168, 0.35);
    text-decoration: none;
    color: #fff;
}

.login-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

.login-btn.secondary {
    background: #fff;
    color: var(--bms-primary);
    border: 1.5px solid var(--bms-primary);
    box-shadow: none;
    margin-top: 0.75rem;
}

.login-btn.secondary:hover {
    background: rgba(26, 86, 168, 0.06);
    box-shadow: none;
    color: var(--bms-primary);
}

.form-hint {
    display: block;
    margin-top: 0.35rem;
    font-size: 0.8rem;
    color: var(--bms-muted);
}

.form-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 0.65rem 0.85rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.form-success {
    background: #ecfdf5;
    color: #047857;
    border: 1px solid #a7f3d0;
    border-radius: 8px;
    padding: 0.65rem 0.85rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.login-footer {
    text-align: center;
    margin-top: 1.25rem;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.8rem;
}

.form-footer-links {
    margin-top: 1rem;
    text-align: center;
}

.back-to-login {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.9rem;
    font-weight: 500;
}

/* ========== App shell (index-style) ========== */
.bms-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bms-bg);
}

.top-header {
    height: var(--bms-header-height);
    background: linear-gradient(135deg, var(--bms-primary-dark) 0%, var(--bms-primary) 55%, var(--bms-primary-light) 100%);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(15, 61, 122, 0.25);
}

.header-content {
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 1.25rem;
    gap: 1rem;
}

.mobile-menu-toggle {
    display: none;
    border: none;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    font-size: 1.35rem;
    cursor: pointer;
}

.header-left .logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: 0.04em;
}

.logo-badge {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    background: rgba(255, 255, 255, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
}

.header-center { flex: 1; text-align: center; }

.dashboard-title {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.header-right { display: flex; align-items: center; gap: 0.75rem; }

.profile-btn {
    border: none;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-chip {
    display: none;
    font-size: 0.85rem;
    opacity: 0.95;
}

.main-container {
    display: flex;
    flex: 1;
    min-height: calc(100vh - var(--bms-header-height));
}

.sidebar {
    width: var(--bms-sidebar-width);
    background: var(--bms-surface);
    border-right: 1px solid var(--bms-border);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.sidebar-nav { padding: 1rem 0.75rem; }

.nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item { margin-bottom: 0.25rem; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0.9rem;
    border-radius: 10px;
    color: var(--bms-text);
    font-weight: 500;
    font-size: 0.95rem;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}

.nav-link i {
    font-size: 1.25rem;
    color: var(--bms-primary);
    width: 1.4rem;
    text-align: center;
}

.nav-link:hover {
    background: rgba(26, 86, 168, 0.08);
    text-decoration: none;
    color: var(--bms-primary-dark);
}

.nav-link.active {
    background: linear-gradient(135deg, rgba(26, 86, 168, 0.12), rgba(14, 165, 160, 0.08));
    color: var(--bms-primary-dark);
    font-weight: 600;
}

.main-content {
    flex: 1;
    min-width: 0;
    padding: 1.5rem;
}

.content-wrapper { max-width: 1200px; margin: 0 auto; }

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bms-surface);
    border-radius: var(--bms-radius);
    padding: 1.25rem;
    box-shadow: var(--bms-shadow);
    border: 1px solid var(--bms-border);
    transition: transform 0.15s, box-shadow 0.15s;
    cursor: pointer;
    color: inherit;
    text-decoration: none;
    display: block;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(15, 61, 122, 0.12);
    text-decoration: none;
    color: inherit;
}

.card-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.75rem;
}

.card-label {
    margin: 0 0 0.35rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--bms-muted);
}

.card-value {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--bms-text);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(26, 86, 168, 0.12), rgba(14, 165, 160, 0.12));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bms-primary);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.page-panel {
    background: var(--bms-surface);
    border-radius: var(--bms-radius);
    padding: 1.5rem;
    box-shadow: var(--bms-shadow);
    border: 1px solid var(--bms-border);
}

.page-panel h1 {
    margin: 0 0 0.5rem;
    font-size: 1.5rem;
}

.page-panel p {
    margin: 0;
    color: var(--bms-muted);
}

.logout-item .nav-link { color: #b91c1c; }
.logout-item .nav-link i { color: #b91c1c; }

.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    z-index: 90;
}

@media (max-width: 900px) {
    .mobile-menu-toggle { display: flex; align-items: center; justify-content: center; }
    .dashboard-title { font-size: 0.95rem; }
    .sidebar {
        position: fixed;
        top: var(--bms-header-height);
        left: 0;
        bottom: 0;
        z-index: 95;
        transform: translateX(-100%);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.12);
    }
    .sidebar.open { transform: translateX(0); }
    .sidebar-backdrop.open { display: block; }
}

@media (min-width: 901px) {
    .user-chip { display: block; }
}

.login-container-wide { max-width: 560px; }

.nav-item-hidden { display: none !important; }

.logo-img-sm {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    object-fit: cover;
    background: rgba(255, 255, 255, 0.18);
}

.stock-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.stock-action-btn {
    width: auto;
    padding: 0.65rem 1.1rem;
    white-space: nowrap;
}

.stock-form-panel { margin-bottom: 1rem; }
.stock-form-panel h2 {
    margin: 0 0 1rem;
    font-size: 1.15rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem 1rem;
}

.form-group-span { grid-column: 1 / -1; }

.stock-form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
}

.table-wrap { overflow-x: auto; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.data-table th,
.data-table td {
    text-align: left;
    padding: 0.75rem 0.65rem;
    border-bottom: 1px solid var(--bms-border);
}

.data-table th {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--bms-muted);
}

.row-actions {
    display: flex;
    gap: 0.75rem;
    white-space: nowrap;
}

.link-btn {
    border: none;
    background: transparent;
    color: var(--bms-primary);
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    font-family: inherit;
}

.link-btn.danger { color: #b91c1c; }

@media (max-width: 700px) {
    .form-grid { grid-template-columns: 1fr; }
    .stock-toolbar { flex-direction: column; }
}

.section-heading {
    margin: 0 0 1rem;
    font-size: 1.15rem;
}

.customer-search-block { position: relative; margin-bottom: 1.25rem; }

.suggest-list {
    list-style: none;
    margin: 0.35rem 0 0;
    padding: 0.35rem;
    position: absolute;
    left: 0;
    right: 0;
    z-index: 20;
    background: #fff;
    border: 1px solid var(--bms-border);
    border-radius: 10px;
    box-shadow: var(--bms-shadow);
    max-height: 220px;
    overflow-y: auto;
}

.suggest-item {
    width: 100%;
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    border: none;
    background: transparent;
    text-align: left;
    padding: 0.55rem 0.65rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
}

.suggest-item:hover { background: rgba(26, 86, 168, 0.08); }
.suggest-item small { color: var(--bms-muted); }

.sale-lines { margin-top: 0.5rem; }
.sale-lines-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}
.sale-lines-header h3 { margin: 0; font-size: 1rem; }

.sale-line-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr auto;
    gap: 0.75rem;
    align-items: start;
    padding: 0.85rem 0;
    border-top: 1px solid var(--bms-border);
}

.sale-line-total .line-total-value {
    padding: 0.7rem 0;
    font-weight: 700;
}

.sale-line-remove { margin-top: 1.85rem; }

.sale-grand-total {
    margin-top: 1rem;
    text-align: right;
    font-size: 1.05rem;
}

@media (max-width: 900px) {
    .sale-line-row {
        grid-template-columns: 1fr 1fr;
    }
    .sale-line-remove { margin-top: 0.5rem; }
}

.customer-block { margin-bottom: 1.25rem; }
.customer-search-row {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
}
.customer-search-row .customer-search-block { flex: 1; margin-bottom: 0; }
.customer-add-info-btn { margin-bottom: 0.15rem; }

.customer-selected-card {
    margin-top: 0.85rem;
    display: flex;
    gap: 0.85rem;
    align-items: center;
    padding: 0.85rem 1rem;
    border: 1px solid var(--bms-border);
    border-radius: 12px;
    background: rgba(26, 86, 168, 0.05);
}

.customer-photo {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}
.customer-photo.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(26, 86, 168, 0.12);
    color: var(--bms-primary);
    font-size: 1.35rem;
}

.customer-selected-name {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
}
.customer-selected-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    color: var(--bms-muted);
    font-size: 0.9rem;
}
.customer-selected-meta i { margin-right: 0.25rem; }

.customer-more-grid { margin-top: 0.85rem; }
.customer-photo-preview {
    margin-top: 0.5rem;
}
.customer-photo-preview img {
    width: 72px;
    height: 72px;
    border-radius: 10px;
    object-fit: cover;
}

.sale-row { cursor: pointer; }
.sale-row:hover { background: rgba(26, 86, 168, 0.04); }

.expand-btn {
    border: none;
    background: transparent;
    color: var(--bms-primary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.sale-detail-row td {
    background: #f8fafc;
    padding-top: 0;
    padding-bottom: 0.85rem;
}

.sale-items-panel {
    border: 1px solid var(--bms-border);
    border-radius: 10px;
    padding: 0.75rem;
    background: #fff;
}
.sale-items-title {
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}
.nested-table th { background: transparent; }