:root {
    --primary-color: #007bff;
    --background-color: #f4f7f9;
    --card-background: #ffffff;
    --text-color: #333;
    --border-color: #e0e0e0;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 1rem;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

.container--home {
    max-width: 500px;
    text-align: center;
    padding-top: 5vh;
}

.app-header {
    margin-bottom: 2rem;
}
.app-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}
.board-header {
    margin-bottom: 1.5rem;
}

.card {
    background: var(--card-background);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1rem;
    text-align: left;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}
input[type="text"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
}

.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
}
.button--primary {
    background-color: var(--primary-color);
    color: white;
}
.button--primary:hover {
    background-color: #0056b3;
}

.result-link input {
    margin-top: 1rem;
    background: #eee;
    text-align: center;
}
.result-link button {
    margin-top: 0.5rem;
}

#add-item-form {
    display: flex;
    gap: 0.5rem;
}
#add-item-form input {
    flex-grow: 1;
}
#add-item-form button {
    flex-shrink: 0;
    padding: 0.75rem;
    width: 50px;
}

.item-card {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.item-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.item-rank {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}
.item-title {
    font-size: 1.2rem;
    font-weight: 600;
}

.item-scores {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    background-color: #f9f9f9;
    padding: 1rem;
    border-radius: 6px;
    text-align: center;
}
.score-display {
    display: flex;
    flex-direction: column;
}
.score-display strong {
    font-size: 0.8rem;
    color: #666;
    margin-bottom: 0.25rem;
}
.score-display span {
    font-size: 1.5rem;
    font-weight: bold;
}

.item-voting {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}
.slider-group {
    display: flex;
    flex-direction: column;
}
.slider-group label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}
.slider-group input[type="range"] {
    width: 100%;
}
.slider-value {
    text-align: center;
    font-weight: bold;
    color: var(--primary-color);
}

.empty-state {
    text-align: center;
    padding: 2rem;
    color: #777;
}

/* Responsive */
@media (max-width: 600px) {
    .item-scores, .item-voting {
        grid-template-columns: 1fr 1fr;
    }
    .item-voting {
        gap: 1rem;
    }
}