:root {
    /* Світла тема - покращений контраст */
    --bg-color: #e5e7eb; /* Трохи темніший сірий фон для глибини */
    --card-bg: #ffffff;  /* Білі картки для контрасту */
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --accent: #e63946;   /* ФІРМОВИЙ ЧЕРВОНИЙ */
    --accent-hover: #d62828;
    --border: #d1d5db;
    --nav-bg: #ffffff;   /* Світле нижнє меню */
    --shadow: 0 4px 12px rgba(0,0,0,0.06);
    --danger: #991b1b;   /* Темно-червоний для небезпечних кнопок */
    --highlight: #f59e0b; 
}

[data-theme="dark"] {
    /* Темна тема */
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-primary: #e0e0e0;
    --text-secondary: #aaaaaa;
    --accent: #ef4444;   /* Яскравий червоний для темної теми */
    --accent-hover: #dc2626;
    --border: #333333;
    --nav-bg: #000000;   /* Темне нижнє меню */
    --shadow: 0 4px 12px rgba(0,0,0,0.4);
    --danger: #b91c1c;
    --highlight: #f59e0b;
}

* { box-sizing: border-box; transition: background 0.3s, color 0.3s, border-color 0.3s; }
body { margin: 0; font-family: 'Segoe UI', sans-serif; background: var(--bg-color); color: var(--text-primary); padding-bottom: 90px; }

/* Header & Basics */
.top-bar { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; background: var(--card-bg); box-shadow: var(--shadow); position: sticky; top: 0; z-index: 10; }
.top-bar h1 { margin: 0; font-size: 1.2rem; }
.header-controls { display: flex; gap: 10px; }
.icon-btn { background: none; border: none; color: var(--text-primary); cursor: pointer; width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2rem;}
.icon-btn:hover { background: rgba(128,128,128,0.1); }

/* Buttons & Inputs */
button.primary { background: var(--accent); color: white; border: none; padding: 12px 20px; border-radius: 8px; font-weight: bold; cursor: pointer; width: 100%; margin-top: 10px; font-size: 1rem; }
button.primary:hover { background: var(--accent-hover); }
button.secondary { background: transparent; border: 1px solid var(--accent); color: var(--accent); padding: 8px; border-radius: 8px; cursor: pointer; margin-top: 10px; width: 100%; font-weight: 500;}
button.text-btn { background: none; border: none; color: var(--text-secondary); width: 100%; padding: 10px; cursor: pointer; margin-top: 5px; }
button.danger { background: var(--danger); color: white; border: none; padding: 12px; border-radius: 8px; cursor: pointer; width: 100%; margin-top: 10px; }
input, select { width: 100%; padding: 12px; background: var(--bg-color); border: 1px solid var(--border); border-radius: 8px; color: var(--text-primary); font-size: 16px; outline: none; }
input:focus, select:focus { border-color: var(--accent); }
label { font-size: 0.9rem; color: var(--text-secondary); display: block; margin-top: 10px; margin-bottom: 5px; }
fieldset { padding: 0; margin: 0; border: none; }

/* Layout */
.container { max-width: 600px; margin: 20px auto; padding: 0 15px; }
.card { background: var(--card-bg); padding: 20px; border-radius: 12px; box-shadow: var(--shadow); margin-bottom: 20px; }
.flex-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.summary-widget { display: flex; justify-content: space-between; align-items: center; padding: 15px; background: var(--bg-color); border-radius: 8px; margin-bottom: 10px; border-left: 4px solid var(--accent); }
.summary-value { font-size: 1.2rem; font-weight: bold; }

/* Navigation */
.bottom-nav { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--nav-bg); display: flex; justify-content: space-around; width: 90%; max-width: 500px; padding: 10px; border-radius: 20px; box-shadow: 0 10px 25px rgba(0,0,0,0.15); z-index: 100; border: 1px solid var(--border); }
.nav-item { display: flex; flex-direction: column; align-items: center; color: var(--text-secondary); cursor: pointer; padding: 5px; position: relative; }
.nav-item.active { color: var(--accent); }
.nav-item .icon { font-size: 22px; margin-bottom: 2px;}
.nav-item .label { font-size: 10px; font-weight: 500;}

/* Home Grid Navigation */
.home-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-top: 20px; }
.home-btn { 
    background: var(--card-bg); border-radius: 16px; padding: 25px 10px; 
    text-align: center; box-shadow: var(--shadow); cursor: pointer; 
    display: flex; flex-direction: column; align-items: center; gap: 10px; 
    color: var(--text-primary); border: 1px solid var(--border); transition: transform 0.2s, border-color 0.2s;
}
.home-btn:active { transform: scale(0.95); }
.home-btn .icon { font-size: 2.5rem; }
.home-btn .label { font-weight: bold; font-size: 1rem; }

/* Calendar Styles */
.calendar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; font-size: 1.1rem; font-weight: bold; }
.calendar-header button { background: var(--bg-color); border: none; padding: 10px 15px; border-radius: 8px; cursor: pointer; color: var(--text-primary); }
.week-days, .calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.week-days div { text-align: center; color: var(--text-secondary); font-size: 0.85rem; padding-bottom: 5px; }

.day-cell { aspect-ratio: 1; background: var(--bg-color); border-radius: 8px; position: relative; cursor: pointer; opacity: 0.4; border: 2px solid transparent; display: flex; align-items: center; justify-content: center; flex-direction: column; overflow: hidden; }
.day-cell.current-month { opacity: 1; }
.day-cell.current-week { border: 2px dashed var(--highlight); background: rgba(245, 158, 11, 0.05); }
.day-cell.today { background: var(--card-bg); font-weight: bold; box-shadow: inset 0 0 0 2px var(--text-primary); }

.day-num { position: absolute; top: 4px; left: 6px; font-size: clamp(9px, 2.5vw, 11px); color: var(--text-secondary); }
.day-main { font-size: clamp(1rem, 4vw, 1.5rem); font-weight: bold; }

/* ГНУЧКИЙ ІНДИКАТОР ПІДМІНИ */
.sub-indicator { 
    position: absolute; 
    bottom: 3px; 
    right: 3px; 
    font-size: clamp(7px, 2vw, 9px); /* Масштабується під екран */
    font-weight: bold; 
    padding: 2px 4px; 
    border-radius: 4px; 
    background: var(--card-bg); 
    border: 1px solid currentColor; 
    display: flex; 
    align-items: center; 
    gap: 2px;
    max-width: 90%; 
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Roster list */
.roster-item { display: flex; justify-content: space-between; align-items: center; padding: 10px; border-bottom: 1px solid var(--border); }
.color-dot { width: 14px; height: 14px; border-radius: 50%; display: inline-block; margin-right: 10px; }

/* Recipes (Cards) */
.recipe-card { background: var(--bg-color); border: 1px solid var(--border); border-radius: 8px; padding: 15px; margin-bottom: 15px; }
.recipe-card h4 { margin: 0 0 10px 0; color: var(--accent); }
.recipe-card p { margin: 5px 0; font-size: 0.95rem; }

/* Modal */
dialog { border: none; border-radius: 12px; background: var(--card-bg); color: var(--text-primary); padding: 20px; box-shadow: var(--shadow); max-width: 90%; width: 400px; }
dialog::backdrop { background: rgba(0,0,0,0.5); }