/* Sisko POS — CSS */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --success: #16a34a;
    --warning: #f59e0b;
    --bg: #f1f5f9;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --sidebar-bg: #1e293b;
    --sidebar-text: #cbd5e1;
    --sidebar-active: #2563eb;
    --sidebar-width: 240px;
    --topbar-height: 56px;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

/* === Layout === */
.app-layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
}

.sidebar {
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    z-index: 100;
    transition: transform .2s ease;
}

.sidebar-header {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.sidebar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: .5rem 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .625rem 1rem;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: .875rem;
    transition: background .15s, color .15s;
}

.nav-link:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav-link.active { background: var(--sidebar-active); color: #fff; font-weight: 600; }

.nav-icon { font-size: 1.1rem; width: 1.5rem; text-align: center; }

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid rgba(255,255,255,.1);
    text-align: center;
}

.role-badge {
    display: inline-block;
    padding: .25rem .75rem;
    background: rgba(255,255,255,.1);
    border-radius: 999px;
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

/* === Top bar === */
.top-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    height: var(--topbar-height);
    padding: 0 1.5rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.sidebar-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }
.page-title { font-size: 1.125rem; font-weight: 600; flex: 1; }
.top-bar-right { display: flex; align-items: center; gap: .75rem; }
.user-name { font-size: .875rem; color: var(--text-muted); }

/* === Content === */
.content-area { padding: 1.5rem; }

/* === Cards === */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.metric { font-size: 1.75rem; font-weight: 700; color: var(--primary); margin-top: .5rem; }

/* === Forms === */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: .875rem; font-weight: 500; margin-bottom: .375rem; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: .5rem .75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: .875rem;
    background: var(--bg-card);
    color: var(--text);
    transition: border-color .15s;
}
.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .5rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: .875rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background .15s, border-color .15s;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: transparent; border-color: var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-sm { padding: .25rem .625rem; font-size: .8rem; }
.btn-full { width: 100%; }

/* === Alerts === */
.alert { padding: .75rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: .875rem; }
.alert-error { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: var(--success); border: 1px solid #bbf7d0; }

/* === Login === */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg);
}

.login-container { width: 100%; max-width: 400px; padding: 1rem; }

.login-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.login-title { text-align: center; font-size: 1.5rem; color: var(--primary); margin-bottom: .25rem; }
.login-subtitle { text-align: center; color: var(--text-muted); margin-bottom: 1.5rem; }

/* === Tables === */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .625rem .75rem; border-bottom: 1px solid var(--border); font-size: .875rem; }
th { font-weight: 600; background: var(--bg); }
tr:hover { background: #f8fafc; }

/* === Toolbar === */
.toolbar { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; margin-bottom: 1rem; }
.search-form { display: flex; gap: .5rem; flex: 1; min-width: 200px; }
.search-input { flex: 1; padding: .5rem .75rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: .875rem; }
.search-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.15); }

/* === Form grid === */
.form-card { background: var(--bg-card); padding: 1.5rem; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid .span-2 { grid-column: span 2; }
.form-actions { margin-top: 1.5rem; display: flex; gap: .75rem; }

/* === Inline form === */
.inline-form { display: flex; gap: .75rem; align-items: flex-end; flex-wrap: wrap; }
.inline-form .form-group { margin-bottom: 0; }

/* === Badges === */
.badge { display: inline-block; padding: .15rem .5rem; border-radius: 999px; font-size: .75rem; font-weight: 600; }
.badge-success { background: #dcfce7; color: var(--success); }
.badge-danger { background: #fee2e2; color: var(--danger); }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-count { background: var(--danger); color: #fff; font-size: .65rem; padding: .1rem .4rem; border-radius: 999px; margin-left: .25rem; vertical-align: top; }

/* === Table helpers === */
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); font-size: .875rem; }
.table-responsive { overflow-x: auto; }
.row-warning { background: #fffbeb !important; }
.row-warning:hover { background: #fef3c7 !important; }

/* === Product summary === */
.product-summary { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: .5rem; }

/* === Pagination === */
.pagination { display: flex; gap: .25rem; margin-top: 1rem; flex-wrap: wrap; }

/* === POS Layout === */
.pos-layout { display: grid; grid-template-columns: 1fr 300px; gap: 1rem; min-height: calc(100vh - var(--topbar-height) - 3rem); }
.pos-cart-panel { display: flex; flex-direction: column; gap: .75rem; }
.pos-pay-panel { background: var(--bg-card); border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow); border: 1px solid var(--border); display: flex; flex-direction: column; gap: .75rem; }
.pos-search { position: relative; }
.pos-results { position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-card); border: 1px solid var(--border); border-radius: 0 0 var(--radius) var(--radius); box-shadow: 0 4px 12px rgba(0,0,0,.15); z-index: 10; max-height: 300px; overflow-y: auto; display: none; }
.pos-result-item { padding: .5rem .75rem; cursor: pointer; font-size: .85rem; border-bottom: 1px solid var(--border); }
.pos-result-item:hover { background: #f0f4ff; }
.pos-cart { flex: 1; overflow-y: auto; background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border); }
.pos-cart table { margin: 0; }
.pos-total { display: flex; justify-content: space-between; font-size: 1.5rem; font-weight: 700; padding: .75rem 1rem; background: var(--sidebar-bg); color: #fff; border-radius: var(--radius); }
.pos-cambio { display: flex; justify-content: space-between; font-size: 1.1rem; font-weight: 600; padding: .5rem 0; }
.pos-msg { margin-top: .5rem; }
.input-big { font-size: 1.25rem; padding: .75rem; text-align: right; }
.input-mini { width: 55px; padding: .25rem .35rem; font-size: .8rem; text-align: right; border: 1px solid var(--border); border-radius: 4px; }
.btn-big { padding: .75rem; font-size: 1.1rem; }

/* === Responsive === */
@media (max-width: 768px) {
    .app-layout { grid-template-columns: 1fr; }
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .sidebar-toggle { display: block; }

    .dashboard-grid { grid-template-columns: 1fr 1fr; }
    .pos-layout { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .dashboard-grid { grid-template-columns: 1fr; }
    .content-area { padding: 1rem; }
}