@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-base: #0a0a0f;
    --bg-secondary: #13131a;
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    
    --accent-electric-blue: #00d2ff;
    --accent-deep-purple: #7a28cb;
    --accent-success: #00ff88;
    --accent-danger: #ff4d4d;
    --gradient-primary: linear-gradient(135deg, var(--accent-deep-purple), var(--accent-electric-blue));
    
    --glass-bg: rgba(20, 20, 30, 0.5);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --glass-blur: blur(16px);
    
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(122, 40, 203, 0.1), transparent 30%),
        radial-gradient(circle at 85% 30%, rgba(0, 210, 255, 0.1), transparent 30%),
        radial-gradient(circle at 50% 100%, rgba(0, 255, 136, 0.05), transparent 40%);
    background-attachment: fixed;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: var(--radius-lg);
}

input, select {
    width: 100%;
    padding: 14px 16px; /* Increased for mobile readbility */
    border-radius: var(--radius-sm);
    background: rgba(0,0,0,0.4);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 16px; /* Prevents iOS auto-zoom */
    font-family: inherit;
    transition: var(--transition-fast);
    outline: none;
}
input:focus, select:focus {
    border-color: var(--accent-electric-blue);
    box-shadow: 0 0 0 2px rgba(0, 210, 255, 0.2);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 16px;
    min-height: 48px;
}
.btn-primary:hover {
    filter: brightness(1.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(122, 40, 203, 0.4);
}
.w-100 { width: 100%; }

/* Login */
.login-wrapper { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.login-box { width: 100%; max-width: 400px; padding: 40px; text-align: center; }
.login-box .logo ion-icon { font-size: 48px; color: var(--accent-electric-blue); margin-bottom: 20px; }
.login-box h1 { background: var(--gradient-primary); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; margin-bottom: 8px; font-weight: 700;}
.login-box .subtitle { color: var(--text-secondary); margin-bottom: 30px; font-size: 14px; }
.input-group { position: relative; margin-bottom: 20px; }
.input-group ion-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--text-secondary); font-size: 20px; }
.input-group input { padding-left: 48px; }
.error-msg { background: rgba(255,77,77,0.1); border: 1px solid rgba(255,77,77,0.2); color: #ff4d4d; padding: 12px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; }

/* Dashboard Layout */
.dashboard-wrapper { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar { padding: 30px 20px; border-radius: 0; border-right: 1px solid var(--glass-border); border-left: none; border-top: none; border-bottom: none; }
.sidebar-header { display: flex; align-items: center; gap: 12px; margin-bottom: 40px; }
.sidebar-header ion-icon { font-size: 28px; color: var(--accent-electric-blue); }
.nav-links { list-style: none; }
.nav-links li { margin-bottom: 10px; }
.nav-links a { display: flex; align-items: center; gap: 12px; padding: 14px 16px; color: var(--text-secondary); text-decoration: none; border-radius: var(--radius-sm); transition: var(--transition-fast); font-weight: 500; font-size: 15px;}
.nav-links a:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }
.nav-links li.active a { background: rgba(255,255,255,0.05); color: var(--text-primary); border-left: 3px solid var(--accent-deep-purple); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;}

.main-content { padding: 30px 40px; }
.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; gap: 16px; flex-wrap: wrap; }
.search-bar { position: relative; flex: 1 1 300px; max-width: 400px; }
.search-bar ion-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--text-secondary); }
.search-bar input { padding-left: 48px; border-radius: 30px; }
.sort-bar select { padding: 12px 16px; border-radius: 30px; min-width: 180px; }

/* Tabs */
.tab-pane { display: none; animation: fadeIn 0.3s ease; }
.tab-pane.active { display: block; }
@keyframes fadeIn { from{opacity:0; transform:translateY(10px);} to{opacity:1; transform:translateY(0);} }
.dashboard-padding { padding: 24px; }

/* Summary Cards */
.summary-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-bottom: 20px; }
.card { background: rgba(0,0,0,0.2); border: 1px solid var(--glass-border); padding: 24px; border-radius: var(--radius-md); display: flex; align-items: center; gap: 20px;}
.card-icon { width: 56px; height: 56px; flex-shrink: 0; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 28px; background: rgba(0, 210, 255, 0.1); color: var(--accent-electric-blue); }
.highlight-card .card-icon { background: rgba(122, 40, 203, 0.15); color: #c996ff; }
.card .card-title { color: var(--text-secondary); font-size: 14px; font-weight: 500; margin-bottom: 6px; }
.card .value { font-size: 24px; font-weight: 700; color: white; word-break: break-all;}
.highlight-profit { background: var(--gradient-primary); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }

/* Grid Split for Available Items */
.grid-split { display: grid; grid-template-columns: 350px 1fr; gap: 30px; align-items: start; }
.add-product-section { padding: 24px; position: sticky; top: 20px; }
.form-group { margin-bottom: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 500; color: var(--text-secondary); }
.input-with-icon { position: relative; display: flex; align-items: center; background: rgba(0,0,0,0.4); border: 1px solid var(--glass-border); border-radius: var(--radius-sm); }
.input-with-icon span { padding-left: 16px; color: var(--text-secondary); font-weight: 600; }
.input-with-icon input { border: none; background: transparent; padding-left: 8px; }
.input-with-icon:focus-within { border-color: var(--accent-electric-blue); }

.inventory-section { padding: 24px; }
.section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 12px;}
.section-header h3 { display: flex; align-items: center; gap: 8px; font-size: 18px; }
.badge { background: rgba(255,255,255,0.1); padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-sold { background: rgba(0, 255, 136, 0.1); color: var(--accent-success); border: 1px solid rgba(0, 255, 136, 0.2); }

.table-responsive { overflow-x: auto; width: 100%; }
.inventory-table { width: 100%; border-collapse: collapse; }
.inventory-table th { text-align: left; padding: 12px 16px; color: var(--text-secondary); font-size: 13px; font-weight: 500; border-bottom: 1px solid var(--glass-border); white-space: nowrap; }
.inventory-table td { padding: 16px; font-size: 14px; border-bottom: 1px solid rgba(255,255,255,0.03); vertical-align: middle; }
.inventory-table tr:hover td { background: rgba(255,255,255,0.02); }

.badge-sku { background: rgba(0, 210, 255, 0.1); color: var(--accent-electric-blue); padding: 4px 8px; border-radius: 6px; font-family: monospace; border: 1px solid rgba(0, 210, 255, 0.2); display: inline-block; }
.profit-positive { color: var(--accent-success); font-weight: 600; }
.profit-negative { color: var(--accent-danger); font-weight: 600; }
.profit-neutral { color: var(--text-secondary); }

.btn-mark-sold { background: transparent; color: var(--accent-electric-blue); border: 1px solid rgba(0,210,255,0.3); padding: 10px 16px; border-radius: var(--radius-sm); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 6px; font-size: 14px; font-weight: 600; transition: var(--transition-fast); min-height: 48px; }
.btn-mark-sold:hover { background: var(--accent-electric-blue); color: #000; }

.empty-state { text-align: center; padding: 40px; color: var(--text-secondary); }
.empty-state ion-icon { font-size: 48px; opacity: 0.3; margin-bottom: 16px; }
.hidden { display: none !important; }

/* Toasts */
#toast-container { position: fixed; top: 20px; right: 20px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast { background: var(--bg-secondary); border: 1px solid var(--glass-border); padding: 16px 20px; border-radius: var(--radius-sm); display: flex; align-items: center; gap: 12px; transform: translateX(120%); transition: transform 0.3s; box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
.toast.show { transform: translateX(0); }
.toast-success ion-icon { color: var(--accent-success); font-size: 24px; }
.toast-error ion-icon { color: var(--accent-danger); font-size: 24px; }

/* Mobile action bar */
.mobile-action-bar { display: none; }
.hide-mobile { display: block; }

/* --- RESPONSIVE MOBILE LAYOUT --- */
@media (max-width: 1024px) {
    .grid-split { grid-template-columns: 1fr; }
    .add-product-section { position: relative; top: 0; }
}

@media (max-width: 768px) {
    .dashboard-wrapper { display: block; padding-bottom: 80px; } /* Buffer for mobile nav */
    .sidebar { display: none; } /* Hide desktop sidebar */
    .main-content { padding: 16px; }
    .hide-mobile { display: none; }
    
    .topbar { flex-direction: column; align-items: stretch; gap: 12px; margin-bottom: 20px; }
    .search-bar { max-width: 100%; flex: none; }
    .sort-bar select { width: 100%; min-width: 100%; }
    
    .form-row { grid-template-columns: 1fr; gap: 16px; }
    .dashboard-padding, .inventory-section { padding: 16px; }
    
    .summary-cards { grid-template-columns: 1fr 1fr; gap: 12px; }
    .card { padding: 16px; flex-direction: column; align-items: flex-start; gap: 12px; }
    .card-icon { width: 40px; height: 40px; font-size: 20px; }
    .card .value { font-size: 20px; }
    .card .card-title { font-size: 13px; margin-bottom: 4px; }
    
    /* Convert Tables to Cards on Mobile */
    .inventory-table, .inventory-table tbody, .inventory-table tr, .inventory-table td {
        display: block; width: 100%;
    }
    .inventory-table thead { display: none; }
    .inventory-table tr {
        background: rgba(0,0,0,0.3);
        margin-bottom: 16px;
        border-radius: var(--radius-md);
        border: 1px solid rgba(255,255,255,0.08);
        padding: 16px;
    }
    .inventory-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 10px 0;
        border-bottom: 1px solid rgba(255,255,255,0.05);
        text-align: right;
    }
    .inventory-table td:last-child {
        border-bottom: none;
        padding-top: 16px;
        padding-bottom: 0;
    }
    .inventory-table td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--text-secondary);
        font-size: 13px;
        text-transform: uppercase;
        text-align: left;
        margin-right: 12px;
    }
    .inventory-table td strong { display: block; }
    .inventory-table td small { display: block; font-size: 12px; margin-top: 4px; }
    .btn-mark-sold { width: 100%; }

    /* Sticky Bottom Mobile Navigation */
    .mobile-action-bar { 
        display: flex; 
        position: fixed; 
        bottom: 16px; left: 16px; right: 16px; 
        justify-content: space-around; 
        padding: 12px; 
        z-index: 100; 
        border-radius: 20px; 
        box-shadow: 0 -4px 30px rgba(0,0,0,0.6);
    }
    .mobile-action-bar .nav-btn { 
        background: none; border: none; 
        color: var(--text-secondary); 
        display: flex; flex-direction: column; align-items: center; gap: 6px; 
        font-size: 12px; cursor: pointer; padding: 4px 8px; font-weight: 500;
    }
    .mobile-action-bar .nav-btn.active { color: var(--accent-electric-blue); }
    .mobile-action-bar ion-icon { font-size: 24px; }
    
    #toast-container { left: 16px; right: 16px; top: 16px; bottom: auto; }
    .toast { max-width: 100%; }
}