/* ==========================================================================
   HLAVNÍ STYLOVÝ PŘEDPIS WEBU v3.0 (Skripťákova edice)
   Všechny barvy, ikony a komponenty na jednom místě.
   ========================================================================== */

:root {
    /* Hlavní barvy */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --accent: #6C5CE7;
    --success: #2ecc71;
    --danger: #e74c3c;
    --warning: #f39c12;
    --info: #3498db;
    
    /* Pozadí a texty */
    --bg-color: #fcfcfd;
    --card-bg: #ffffff;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --border: #f1f5f9;
    
    /* Ostatní */
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.05);
    --container-width: 1100px;
}

/* 1. RESET A ZÁKLAD */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}
.container { width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }

/* 2. TYPOGRAFIE */
h1 { font-size: 2rem; font-weight: 700; margin-bottom: 20px; letter-spacing: -0.5px; color: #1e293b; }
h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 15px; color: #1e293b; }
a { color: var(--primary); text-decoration: none; transition: 0.2s; }
a:hover { color: var(--primary-hover); }

/* 3. HLAVIČKA */
.main-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}
.header-flex { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--text-main); letter-spacing: -1px; }
.logo span { color: var(--primary); }
.main-nav { display: flex; gap: 20px; }
.main-nav a { color: var(--text-muted); font-weight: 500; font-size: 0.95rem; }
.main-nav a:hover, .main-nav a.active { color: var(--primary); }

/* 4. UNIVERZÁLNÍ KOMPONENTY */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 20px;
    position: relative;
}

/* Tlačítka sjednocená z Velínu a Frontu */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    font-size: 0.95rem;
    text-align: center;
    justify-content: center;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2); }
.btn-secondary { background: #f1f5f9; color: var(--text-main); }
.btn-secondary:hover { background: #e2e8f0; }
.btn-accent { background: var(--accent); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-sm { padding: 6px 12px; font-size: 0.85rem; }

/* Ikony a statusy (převzato z Velínu) */
.icon { font-size: 1.2rem; vertical-align: middle; }
.badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
}
.badge-success { background: #e8f8f5; color: var(--success); }
.badge-danger { background: #fdedec; color: var(--danger); }
.badge-info { background: #ebf5fb; color: var(--info); }

/* 5. E-SHOP KOMPONENTY */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}
.product-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.product-card img { width: 100%; height: 220px; object-fit: cover; }
.product-card-body { padding: 20px; flex-grow: 1; display: flex; flex-direction: column; }
.product-price { font-size: 1.4rem; font-weight: 800; color: var(--success); }

/* Oblíbené - Srdíčko */
.fav-star {
    position: absolute;
    top: 15px;
    right: 15px;
    cursor: pointer;
    font-size: 1.6rem;
    z-index: 10;
    transition: transform 0.2s;
}
.fav-star:hover { transform: scale(1.2); }

/* 6. FORMULÁŘE */
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 600; font-size: 0.9rem; }
.input-style {
    width: 100%;
    padding: 12px;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-sm);
    outline: none;
    transition: 0.2s;
}
.input-style:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }

/* 7. TABULKY */
.app-table { width: 100%; border-collapse: collapse; }
.app-table th { text-align: left; padding: 12px; background: #f8fafc; color: var(--text-muted); font-size: 0.8rem; text-transform: uppercase; }
.app-table td { padding: 15px 12px; border-bottom: 1px solid var(--border); }