:root {
    --bg: #f0f0f0;
    --surface: rgba(255,255,255,0.8);
    --surface-acrylic: rgba(255,255,255,0.5);
    --text: #1a1a1a;
    --text-secondary: #5c5c5c;
    --accent: #0078d4;
    --accent-hover: #106ebe;
    --red: #d13438;
    --border-radius: 12px;
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
    --transition: 0.2s ease;
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.login-container {
    background: var(--surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    text-align: center;
    width: 90%;
    max-width: 400px;
}
.login-container h1 { margin-bottom: 1.5rem; font-weight: 600; }
.login-container input {
    width: 100%;
    padding: 0.8rem;
    margin-bottom: 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 1rem;
}
.login-container button {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
}
.login-container button:hover { background: var(--accent-hover); }
.error { color: var(--red); margin-bottom: 0.5rem; }

/* Основной layout */
.app { display: flex; flex-direction: column; min-height: 100vh; }
.header {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--surface);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    gap: 1rem;
}
.burger {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}
.burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
}
.title { font-size: 1.4rem; font-weight: 600; flex: 1; white-space: nowrap; }
.date-range { font-size: 0.9rem; color: var(--text-secondary); }
.logout-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}
.logout-btn:hover { color: var(--red); }

.layout {
    display: flex;
    flex: 1;
    overflow: hidden;
}
.menu-grid {
    flex: 1;
    padding: 1rem;
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1rem;
    overflow-y: auto;
    align-content: start;
}
/* Карточка дня */
.day-card {
    background: var(--surface);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 0;
}
.day-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-weight: 600;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 0.25rem;
}
.day-header .date { font-size: 0.8rem; color: var(--text-secondary); }
.day-header .day-name { font-size: 0.9rem; }
.meal-slot {
    font-size: 0.85rem;
    line-height: 1.4;
    background: rgba(255,255,255,0.4);
    border-radius: 8px;
    padding: 0.4rem;
    position: relative;
}
.meal-slot .meal-type {
    font-weight: 600;
    margin-bottom: 0.2rem;
    color: var(--accent);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.reroll-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 2px 5px;
    border-radius: 4px;
    transition: var(--transition);
}
.reroll-btn:hover { background: rgba(0,0,0,0.08); }
.ingredient-list-in-meal {
    list-style: none;
    padding-left: 0.5rem;
}
.ingredient-list-in-meal li::before {
    content: "• ";
    color: var(--accent);
}

/* Сайдбар */
.sidebar {
    width: 320px;
    background: var(--surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: -4px 0 12px rgba(0,0,0,0.05);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transform: translateX(0);
    transition: transform 0.3s ease;
    z-index: 50;
}
.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.close-sidebar {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    display: none;
}
.ingredient-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0;
    border-bottom: 1px solid #e0e0e0;
    font-size: 0.9rem;
}
.ingredient-item input[type="checkbox"] {
    accent-color: var(--accent);
    width: 18px;
    height: 18px;
}
.ingredient-item label { flex: 1; cursor: pointer; }

/* Адаптивность */
@media (max-width: 1100px) {
    .menu-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}
@media (max-width: 768px) {
    .menu-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .sidebar {
        position: fixed;
        top: 0;
        right: 0;
        height: 100%;
        transform: translateX(100%);
        width: 300px;
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .close-sidebar { display: block; }
    .burger { display: flex; }
    .date-range { display: none; }
    .header .title { font-size: 1.2rem; }
}
@media (max-width: 500px) {
    .menu-grid {
        grid-template-columns: 1fr;
    }
}