:root {
    --steam-dark-blue: #1b2838;
    --steam-med-blue: #2a475e;
    --steam-light-blue: #66c0f4;
    --steam-cyan-text: #c7d5e0;
    --steam-gray-text: #acb2b8;
    --steam-green: #70a021;
    --steam-red-error: #c53838;

    --surface-color: var(--steam-med-blue);
    --background-color: var(--steam-dark-blue);
    --text-color: var(--steam-cyan-text);
    --text-muted: var(--steam-gray-text);
    --primary-color: var(--steam-light-blue);
    --accent-color: var(--steam-green);
    --border-color: rgba(102, 192, 244, 0.2);
}

body {
    font-family:
        "Poppins",
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Oxygen,
        Ubuntu,
        Cantarell,
        "Open Sans",
        "Helvetica Neue",
        sans-serif;
    background-color: var(--background-color);
    background-image: linear-gradient(
        to bottom,
        #23344a,
        var(--background-color)
    );
    background-attachment: fixed;
    color: var(--text-color);
    margin: 0;
    padding: 2rem 1rem;
    min-height: 100vh;
}

/* --- Main Two-Panel Layout --- */
.main-container {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    max-width: 1600px;
    margin: 0 auto;
}

.left-panel {
    flex: 1;
    min-width: 450px;
}

.right-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
    min-width: 450px;
}

/* --- Header & Typography --- */
header {
    text-align: center;
    margin-bottom: 2.5rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

/* --- Main Card Layout --- */
.card {
    background-color: var(--surface-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.card-title-label {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
    margin-bottom: 1.5rem;
}

/* --- Input & Buttons --- */
.input-group {
    display: flex;
    gap: 1rem;
}

input[type="text"],
input[type="search"] {
    width: 100%;
    padding: 0.85rem 1rem;
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-color);
    font-size: 1rem;
    transition:
        border-color 0.3s,
        box-shadow 0.3s;
}

input[type="text"]:focus,
input[type="search"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 192, 244, 0.3);
}

button {
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: var(--background-color);
    font-weight: 600;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
    transition:
        background-color 0.3s,
        transform 0.1s;
}
button:hover {
    background-color: white;
}
button:active {
    transform: scale(0.97);
}
button:disabled {
    background-color: var(--text-muted);
    cursor: not-allowed;
}

#recommend-button {
    width: 100%;
    justify-content: center;
    padding: 1rem;
    font-size: 1.2rem;
    background: linear-gradient(45deg, var(--steam-green), #92d42d);
    color: white;
}
#recommend-button:hover {
    background: linear-gradient(45deg, #82b92f, var(--steam-green));
}

/* --- Status & Loading Messages --- */
.status-message {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 5px;
    font-weight: 600;
}
.status-message.loading {
    background-color: rgba(102, 192, 244, 0.2);
    color: var(--primary-color);
}
.status-message.error {
    background-color: rgba(197, 56, 56, 0.2);
    color: var(--steam-red-error);
}
.status-message.success {
    background-color: rgba(112, 160, 33, 0.2);
    color: var(--accent-color);
}

/* --- Game Library List --- */
.search-bar {
    position: relative;
}
.search-bar i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}
.search-bar input {
    padding-left: 3rem;
}

#game-library-list,
#recommendations-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0 0;
    max-height: 60vh;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 5px;
}
#game-library-list li {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
    user-select: none;
}
#game-library-list li:nth-child(odd) {
    background-color: rgba(0, 0, 0, 0.1);
}
#game-library-list li:hover {
    background-color: rgba(102, 192, 244, 0.1);
}

.game-item-header {
    display: flex;
    align-items: center;
    gap: 12px;
}
.icon-placeholder {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    margin-right: 1rem;
    background-color: var(--border-color);
    transition: all 0.2s;
}
li.selected .icon-placeholder {
    background-color: var(--accent-color);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='white' class='bi bi-check' viewBox='0 0 16 16'%3E%3Cpath d='M10.97 4.97a.75.75 0 0 1 1.07 1.05l-3.99 4.99a.75.75 0 0 1-1.08.02L4.324 8.384a.75.75 0 1 1 1.06-1.06l2.094 2.093 3.473-4.425a.267.267 0 0 1 .02-.022z'/%3E%3C/svg%3E");
    background-position: center;
    background-repeat: no-repeat;
}

/* --- In-line Tuning Controls --- */
.tuning-controls {
    display: none; /* Hidden by default */
    padding: 1rem 0 0.5rem 3rem;
    margin-top: 1rem;
    border-top: 1px solid var(--border-color);
}
li.selected .tuning-controls {
    display: block; /* Shown when game is selected */
}

/* --- General Settings & Sliders --- */
.settings-control {
    margin-bottom: 1.5rem;
}
.slider-container {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1rem;
}
.slider-label {
    color: var(--text-muted);
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    background: linear-gradient(
        90deg,
        var(--primary-color) 0%,
        var(--steam-med-blue) 100%
    );
    border-radius: 4px;
    outline: none;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    background: white;
    border: 3px solid var(--primary-color);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.18);
    border-radius: 50%;
    cursor: pointer;
    transition:
        border-color 0.2s,
        box-shadow 0.2s;
}

input[type="range"]:focus::-webkit-slider-thumb {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(102, 192, 244, 0.25);
}

input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    background: white;
    border: 3px solid var(--primary-color);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.18);
    border-radius: 50%;
    cursor: pointer;
    transition:
        border-color 0.2s,
        box-shadow 0.2s;
}

input[type="range"]:focus::-moz-range-thumb {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(102, 192, 244, 0.25);
}

input[type="range"]::-ms-thumb {
    width: 22px;
    height: 22px;
    background: white;
    border: 3px solid var(--primary-color);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.18);
    border-radius: 50%;
    cursor: pointer;
    transition:
        border-color 0.2s,
        box-shadow 0.2s;
}

input[type="range"]:focus::-ms-thumb {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(102, 192, 244, 0.25);
}

input[type="range"]::-ms-fill-lower {
    background: var(--primary-color);
    border-radius: 4px;
}
input[type="range"]::-ms-fill-upper {
    background: var(--steam-med-blue);
    border-radius: 4px;
}

.influence-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.influence-percentage {
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: 700;
}

/* Toggle Switch */
.toggle-switch {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1.5rem;
}
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}
.switch input {
    display: none;
}
.slider-toggle {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    transition: 0.4s;
    border-radius: 28px;
}
.slider-toggle:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-muted);
    transition: 0.4s;
    border-radius: 50%;
}
input:checked + .slider-toggle {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}
input:checked + .slider-toggle:before {
    transform: translateX(22px);
    background-color: white;
}

/* --- NEW: Styles for the Recommendation List --- */
.recommendation-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    border-bottom: 1px solid #3a4753;
}

/* 2. Container for the text content */
/* This is the key change: it stacks the name and description vertically */
.recommendation-details {
    display: flex;
    flex-direction: column;
}

/* 3. Style for the game's name */
.recommendation-name {
    font-weight: 600;
    font-size: 1em;
    color: #e3e3e3;
}

/* 4. Style for the game's description */
/* This is now always visible */
.recommendation-desc {
    font-size: 0.9em;
    color: #aeb9c2;
}

/* Responsive adjustments */
@media (max-width: 950px) {
    .left-panel,
    .right-panel {
        min-width: 100%;
    }
}