*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --gold: #e8a838;
    --gold-light: #f5d68a;
    --gold-dark: #c48a2a;
    --bg: #fef9ef;
    --card: #fff;
    --text: #2d2d2d;
    --text-light: #666;
    --border: #e0d6c4;
    --danger: #d9534f;
    --radius: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
    padding-bottom: env(safe-area-inset-bottom);
}

#app {
    max-width: 480px;
    margin: 0 auto;
    padding: 0 12px;
}

header {
    text-align: center;
    padding: 20px 0 10px;
    position: sticky;
    top: 0;
    background: var(--bg);
    z-index: 10;
}

header h1 {
    font-size: 1.3rem;
    color: var(--gold-dark);
    margin-bottom: 12px;
}

nav {
    display: flex;
    gap: 6px;
}

.tab-btn {
    flex: 1;
    padding: 10px 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn.active {
    background: var(--gold);
    color: #fff;
    border-color: var(--gold);
}

.tab-content {
    display: none;
    padding: 20px 0;
}

.tab-content.active {
    display: block;
}

.collector {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.collector label {
    font-size: 0.9rem;
    color: var(--text-light);
    align-self: flex-start;
}

#collect-date {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    background: var(--card);
}

.counter {
    display: flex;
    align-items: center;
    gap: 24px;
    margin: 10px 0;
}

.counter-btn {
    width: 72px;
    height: 72px;
    border: 2px solid var(--gold);
    border-radius: 50%;
    background: var(--card);
    font-size: 2rem;
    font-weight: 700;
    color: var(--gold-dark);
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.counter-btn:active {
    background: var(--gold-light);
    transform: scale(0.95);
}

#count-display {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--gold-dark);
    min-width: 80px;
    text-align: center;
}

.save-btn {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: var(--radius);
    background: var(--gold);
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s;
}

.save-btn:active {
    background: var(--gold-dark);
}

.msg {
    text-align: center;
    font-size: 0.9rem;
    min-height: 1.2em;
}

.msg.ok { color: #2a9d2a; }
.msg.err { color: var(--danger); }

.secondary-btn {
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card);
    font-size: 0.85rem;
    cursor: pointer;
    margin-bottom: 12px;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 10px 8px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    font-size: 0.8rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    font-size: 0.95rem;
}

.del-btn {
    background: none;
    border: none;
    color: var(--danger);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px 8px;
    opacity: 0.6;
}

.del-btn:active { opacity: 1; }

.stats-view {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.period-selector {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.period-selector label {
    font-size: 0.85rem;
    color: var(--text-light);
}

#stats-period {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    background: var(--card);
}

.stats-cards {
    display: flex;
    gap: 10px;
}

.card {
    flex: 1;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 10px;
    text-align: center;
}

.card-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-light);
    margin-bottom: 4px;
}

.card-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gold-dark);
}

.chart-wrap {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    position: relative;
}

.chart-wrap canvas {
    width: 100% !important;
    height: auto !important;
    max-height: 280px;
}

@media (min-width: 768px) {
    #app { max-width: 640px; }
    .counter-btn { width: 88px; height: 88px; font-size: 2.4rem; }
    #count-display { font-size: 3.4rem; }
}