/* Layout & App Shell */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100dvh; /* Dynamic viewport height for mobile */
    padding-bottom: calc(var(--nav-height) + 20px + env(safe-area-inset-bottom));
}

.main-content {
    flex: 1;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
    transition: padding 0.3s ease;
    overflow-x: hidden;
    min-width: 0;
}

/* Navbar Pill Style - Strict PRD Rule */
.navbar-pill {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: min(90%, 600px);
    height: var(--nav-height);
    background: #1e1b4b;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(165, 180, 252, 0.15);
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0 12px;
    box-shadow: 0 8px 32px rgba(30, 27, 75, 0.45), 0 2px 8px rgba(0,0,0,0.2);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: rgba(165, 180, 252, 0.7);
    font-size: 11px;
    font-weight: 500;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.nav-item:hover {
    color: #a5b4fc;
    background: rgba(165, 180, 252, 0.1);
}

.nav-item.active {
    color: white;
    background: rgba(99, 102, 241, 0.5);
}

.nav-item i {
    width: 24px;
    height: 24px;
}

/* Page Containers */
.page-container {
    animation: fadeIn 0.4s ease-out;
    width: 100%;
    min-width: 0;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Grid System */
.grid {
    display: grid;
    gap: 20px;
}

.grid-cols-1 { grid-template-columns: 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); }
.grid-cols-12 { grid-template-columns: repeat(12, 1fr); }

/* Responsive md: prefix (≥768px) */
@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .md\:col-span-1 { grid-column: span 1; }
    .md\:col-span-2 { grid-column: span 2; }
    .md\:col-span-3 { grid-column: span 3; }
    .md\:col-span-4 { grid-column: span 4; }
    .md\:col-span-5 { grid-column: span 5; }
}

/* Responsive lg: prefix (≥1024px) */
@media (min-width: 1024px) {
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
    .lg\:col-span-1 { grid-column: span 1; }
    .lg\:col-span-2 { grid-column: span 2; }
}

/* col-span utilities */
.col-span-1  { grid-column: span 1; }
.col-span-2  { grid-column: span 2; }
.col-span-3  { grid-column: span 3; }
.col-span-4  { grid-column: span 4; }
.col-span-5  { grid-column: span 5; }
.col-span-6  { grid-column: span 6; }
.col-span-7  { grid-column: span 7; }
.col-span-8  { grid-column: span 8; }
.col-span-9  { grid-column: span 9; }
.col-span-10 { grid-column: span 10; }
.col-span-11 { grid-column: span 11; }
.col-span-12 { grid-column: span 12; }

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

@media (max-width: 768px) {
    .main-content { padding: 16px; }
    .grid-cols-3  { grid-template-columns: repeat(2, 1fr); }
    .grid-cols-4  { grid-template-columns: repeat(2, 1fr); }

    /* Settings: sidebar jadi horizontal scroll tabs */
    .settings-layout {
        flex-direction: column !important;
    }
    .settings-layout aside {
        width: 100% !important;
        border-right: none !important;
        border-bottom: 1px solid var(--border) !important;
        padding: 12px 8px !important;
    }
    .settings-layout aside nav {
        flex-direction: row !important;
        overflow-x: auto !important;
        gap: 6px !important;
        padding-bottom: 4px;
        scrollbar-width: none;
    }
    .settings-layout aside nav::-webkit-scrollbar { display: none; }
    .settings-tab-btn {
        white-space: nowrap !important;
        width: auto !important;
        padding: 8px 14px !important;
        font-size: 12px !important;
        flex-shrink: 0;
    }
    .settings-layout aside nav div[style*="height: 1px"] { display: none !important; }
    .settings-layout main { padding: 16px !important; }

    /* Tabel: sembunyikan kolom non-esensial */
    .table-hide-mobile { display: none !important; }

    /* POS layout */
    .pos-layout { flex-direction: column !important; }
}

@media (max-width: 480px) {
    .grid-cols-2  { grid-template-columns: 1fr; }
    .grid-cols-3  { grid-template-columns: 1fr; }
    .grid-cols-4  { grid-template-columns: 1fr; }
    .navbar-pill  { width: calc(100% - 32px); bottom: 16px; }
    .nav-item     { width: 46px; height: 46px; }
    .nav-item span { display: none; }
    .nav-item i   { width: 20px; height: 20px; }
}

/* Flex utilities */
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.p-16 { padding: 16px; }
.p-24 { padding: 24px; }