:root { --primary: #2c3e50; --accent: #e74c3c; --bg: #ecf0f1; --card: #ffffff; --text: #2c3e50; }
body { font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; background: var(--bg); color: var(--text); margin: 0; padding: 20px; }
.container { max-width: 950px; margin: 0 auto; }
.header { text-align: center; margin-bottom: 30px; padding: 20px; background: var(--primary); color: white; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
.header h1 { margin: 0; font-size: 2.2rem; text-transform: uppercase; letter-spacing: 1px; }
.card { background: var(--card); border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); overflow: hidden; margin-bottom: 20px; }
.tabs { display: flex; background: #dfe6e9; padding: 10px 10px 0; border-bottom: 1px solid #bdc3c7; }
.tab-btn { padding: 12px 24px; border: none; background: none; font-weight: 700; color: #7f8c8d; cursor: pointer; border-radius: 6px 6px 0 0; transition: all 0.2s; }
.tab-btn.active { background: var(--card); color: var(--primary); border-bottom: 3px solid var(--accent); }
.tab-content { display: none; padding: 30px; }
.tab-content.active { display: block; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.full-width { grid-column: span 2; }
label { display: block; font-weight: 700; margin-bottom: 8px; color: var(--primary); text-transform: uppercase; font-size: 0.85rem; }
input, select, textarea { width: 100%; padding: 12px; border: 2px solid #bdc3c7; border-radius: 6px; box-sizing: border-box; font-size: 1rem; transition: border 0.2s; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); outline: none; }
.shopping-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; margin-top: 10px; }
.shop-item { background: #f8f9fa; border: 2px solid #bdc3c7; border-radius: 8px; padding: 15px; cursor: pointer; transition: all 0.2s; display: flex; align-items: center; }
.shop-item:hover { border-color: var(--primary); background: #fff; }
.shop-item input { width: auto; margin-right: 15px; transform: scale(1.3); }
.btn-main { width: 100%; padding: 15px; background: var(--accent); color: white; border: none; border-radius: 8px; font-size: 1.2rem; font-weight: 800; cursor: pointer; margin-top: 20px; text-transform: uppercase; letter-spacing: 1px; box-shadow: 0 4px 0 #c0392b; transition: transform 0.1s, box-shadow 0.1s; }
.btn-main:active { transform: translateY(4px); box-shadow: 0 0 0 #c0392b; }
.log-window { background: #2c3e50; color: #2ecc71; padding: 15px; border-radius: 8px; font-family: 'Consolas', monospace; height: 200px; overflow-y: auto; margin-top: 20px; display: none; border: 2px solid #34495e; }
.footer { text-align: center; margin-top: 40px; font-size: 0.9rem; color: #7f8c8d; }
.footer a { color: var(--accent); text-decoration: none; font-weight: bold; }