:root {
    /* Palet Warna Terang (SaaS Clean Theme) */
    --bg-color: #f8fafc; /* Latar belakang body abu-abu sangat muda */
    --surface-color: #ffffff; /* Latar kartu putih bersih */
    --border-color: #e2e8f0; /* Border abu-abu lembut */
    
    /* Warna Teks */
    --text-main: #1e293b; /* Teks utama gelap/hitam */
    --text-muted: #64748b; /* Teks sekunder abu-abu */
    
    /* Aksen & Status (Menyesuaikan gambar referensi) */
    --accent-color: #38bdf8; /* Biru muda cerah */
    --accent-green: #10b981; /* Hijau sukses (seperti tombol di referensi) */
    --danger-color: #ef4444; 
    --warning-color: #f59e0b;
    
    /* Dimensi Sidebar */
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 80px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow: hidden;
}

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

/* --- SIDEBAR --- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--surface-color);
    border-right: 1px solid var(--border-color);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    height: 75px;
    display: flex;
    align-items: center;
    padding: 0 25px;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
    white-space: nowrap;
}

.logo-icon {
    color: var(--text-main);
    margin-right: 15px;
    display: flex;
    align-items: center;
}

.logo-text {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
    color: var(--text-main);
}

.sidebar-menu {
    list-style: none;
    padding: 20px 0;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    padding: 14px 25px;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
    overflow: hidden;
    font-size: 0.95rem;
    font-weight: 500;
}

.sidebar-menu li a:hover, .sidebar-menu li a.active {
    color: var(--accent-green);
    background: rgba(16, 185, 129, 0.05); /* Efek hijau transparan */
    border-left: 3px solid var(--accent-green);
}

.sidebar-menu li a i {
    min-width: 24px;
    margin-right: 15px;
}

.sidebar.collapsed .logo-text,
.sidebar.collapsed .menu-text {
    opacity: 0;
    pointer-events: none;
}

/* --- MAIN CONTENT & KARTU (Pengganti Glassmorphism) --- */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

/* Mengubah nama class glass-panel menjadi tampilan kartu putih bersinar dengan bayangan lembut */
.glass-panel {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

.top-header {
    height: 75px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    margin: 20px 25px 0 25px;
    background: var(--surface-color);
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 8px;
    transition: background 0.2s;
}

.icon-btn:hover {
    background: var(--bg-color);
    color: var(--text-main);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 500;
}

.content-area {
    padding: 25px;
}

.welcome-card {
    padding: 30px;
}

/* --- FORM & INPUT --- */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    align-items: center;
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Tombol sesuai referensi gambar (dominan hijau tosca/mint) */
.btn-primary {
    background: var(--accent-green);
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: opacity 0.2s, transform 0.1s;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-primary:active {
    transform: translateY(1px);
}

.btn-danger {
    background: #fff;
    color: var(--danger-color);
    border: 1px solid var(--border-color);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    transition: all 0.2s;
}

.btn-danger:hover {
    background: var(--danger-color);
    color: #fff;
    border-color: var(--danger-color);
}

/* --- TABEL DATA --- */
.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.data-table th, .data-table td {
    padding: 16px 15px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.data-table th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--bg-color); /* Sedikit kontras untuk header tabel */
}

/* --- BADGE STATUS --- */
.badge {
    padding: 6px 12px;
    border-radius: 20px; /* Lebih membulat seperti pil */
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
}

.badge-success { background: rgba(16, 185, 129, 0.1); color: var(--accent-green); }
.badge-danger { background: rgba(239, 68, 68, 0.1); color: var(--danger-color); }
.badge-primary { background: rgba(56, 189, 248, 0.1); color: var(--accent-color); }

/* --- LAYOUT POS KASIR --- */
.pos-layout {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 25px;
}

select.form-input {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="%2364748b" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 16px;
    padding-right: 40px;
}

/* --- INPUT ACTION BAR (Form Kasir) --- */
.input-action-bar {
    display: flex;
    gap: 15px;
    align-items: flex-end;
    background: var(--bg-color); /* Kontras tipis dengan panel putih */
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.input-wrapper {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-wrapper label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.w-100 { width: 100%; justify-content: center; }
.text-center { text-align: center; }

@media (max-width: 992px) {
    .pos-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .input-action-bar {
        flex-direction: column;
        align-items: stretch;
    }
    .input-wrapper { width: 100%; }
}