/* Layout Styles */

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

.sidebar {
    width: 260px;
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: var(--z-sticky);
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--space-lg) var(--space-xl);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.page-header .flex.justify-between {
    flex-wrap: wrap;
    min-width: 0;
}

.page-content {
    padding: var(--space-xl);
    flex: 1;
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }

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

    .main-content {
        margin-left: 0;
        max-width: 100vw;
        overflow-x: hidden;
    }

    .page-content {
        max-width: 100%;
        overflow-x: hidden;
        padding: var(--space-md);
    }

    .app-layout {
        max-width: 100vw;
        overflow-x: hidden;
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}

/* Flex Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.flex-1 { flex: 1; }
.flex-wrap { flex-wrap: wrap; }

/* Spacing Utilities */
.m-0 { margin: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

/* Width/Height */
.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    cursor: pointer;
    padding: var(--space-xs);
    margin-right: var(--space-sm);
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .page-header {
        padding: var(--space-sm) var(--space-md);
    }

    .page-header .flex.justify-between {
        gap: var(--space-sm);
    }

    .page-header .flex.items-center.gap-lg:first-of-type {
        gap: var(--space-sm);
        min-width: 0;
        flex: 0 1 auto;
    }

    .page-header .flex.items-center.gap-lg:last-of-type {
        gap: var(--space-xs);
        flex-wrap: nowrap;
        min-width: 0;
        flex-shrink: 0;
    }

    .page-header h1#pageTitle {
        font-size: var(--font-size-base);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 120px;
    }

    .page-header .gap-lg {
        gap: var(--space-sm);
    }

    .user-name-text {
        display: none;
    }

    .balance-display {
        padding: var(--space-xs) var(--space-sm) !important;
        flex-shrink: 0;
    }

    .balance-display span {
        font-size: var(--font-size-xs);
    }

    /* Invoice badge: chỉ hiện icon trên mobile, text rút gọn hoặc ẩn */
    .page-header .invoice-profile-badge {
        padding: var(--space-xs) var(--space-sm) !important;
        max-width: 100px;
        min-width: 0;
    }

    .page-header .invoice-profile-badge span {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        font-size: 10px;
    }

    /* Dropdown: căn phải với nút, đủ khoảng cách */
    .page-header .dropdown-menu {
        right: 0;
        left: auto;
        margin-top: var(--space-xs);
        min-width: 180px;
    }
}

@media (max-width: 480px) {
    .page-header h1#pageTitle {
        max-width: 90px;
    }

    /* Ẩn chữ badge, chỉ giữ icon */
    .page-header .invoice-profile-badge span {
        display: none;
    }

    .page-header .invoice-profile-badge {
        max-width: none;
        padding: var(--space-xs) !important;
    }

    .page-header .invoice-profile-badge i {
        margin: 0;
    }
}