/* =========================================
   PDV Design System (CSS Variables)
   Dark/Glassmorphism Theme
========================================= */

:root {
    /* Colors - Dark Theme Base */
    --bg-app: #1e1e2d;
    --bg-surface: #2b2b40;
    --bg-surface-hover: #32324b;
    --bg-glass: rgba(43, 43, 64, 0.7);
    
    /* Brand Colors */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a1a5b7;
    --text-muted: #5e6278;
    
    /* Borders */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-radius: 12px;
    
    /* Shadows */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    background-color: var(--bg-app);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    height: 100vh;
    overflow: hidden;
}

/* ── Typography ── */
h1, h2, h3 { font-weight: 600; color: var(--text-primary); }
p { color: var(--text-secondary); }

/* ── Offline Bar ── */
#offline-bar {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: var(--warning);
    color: #000;
    text-align: center;
    padding: 8px;
    font-weight: 500;
    font-size: 14px;
    z-index: 9999;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}
#offline-bar:not(.hidden) {
    transform: translateY(0);
}

/* ── Layout Shell ── */
#app {
    display: flex;
    height: 100vh;
    width: 100vw;
}

.sidebar {
    width: 250px;
    background: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background: var(--bg-app);
}

/* ── Glassmorphism Cards ── */
.card {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 8px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-success { background: var(--success); color: #fff; }

/* ── Inputs ── */
.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-app);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s;
}
.form-control:focus {
    border-color: var(--primary);
}