:root {
    --color-bg-light: #F0F0F0;
    --color-bg-module: #FFFFFF;
    --color-text-dark: #1A2035; /* Deep Navy */
    --color-accent: #FFC107; /* Bright Amber/Gold */
    --color-border-subtle: #D0D0E0;
    --font-main: 'Inter', sans-serif;
    --radius-large: 12px;
}

/* --- Base Styles --- */
html, body {
    margin: 0;
    padding: 0;
    background-color: var(--color-bg-light);
    color: var(--color-text-dark);
    font-family: var(--font-main);
    min-height: 100vh;
    line-height: 1.5;
    transition: background-color 0.5s;
}

/* --- Main Container Layout (Centered and Padded) --- */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px;
}

/* --- Aether Header (Full Width Blueprint) --- */
.aether-header {
    background-color: var(--color-bg-module);
    border-bottom: 5px solid var(--color-accent);
    padding: 40px 30px;
    margin-bottom: 30px;
    border-radius: var(--radius-large);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.aether-header h1 {
    font-size: 2em;
    margin: 0;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 5px;
    font-weight: 900;
}

.aether-header p {
    font-size: 1em;
    color: var(--color-text-dark);
    margin-top: 10px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* --- Control Module (Search & Filter) --- */
.control-module {
    background-color: var(--color-bg-module);
    padding: 30px;
    border-radius: var(--radius-large);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    border: 1px solid var(--color-border-subtle);
}

.control-module h2 {
    font-size: 1.5em;
    color: var(--color-text-dark);
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: 5px;
    margin-bottom: 20px;
}

#searchInput {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    background-color: var(--color-bg-light);
    color: var(--color-text-dark);
    border: 2px solid var(--color-border-subtle);
    border-radius: 8px;
    font-size: 1em;
    box-sizing: border-box;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

#searchInput:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 10px rgba(255, 193, 7, 0.5);
}

/* --- Category Buttons (Blueprint style) --- */
.category-filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.category-button {
    padding: 8px 18px;
    border: 1px solid var(--color-border-subtle);
    background-color: var(--color-bg-light);
    color: var(--color-text-dark);
    cursor: pointer;
    font-size: 0.9em;
    border-radius: 50px; /* Pill shape */
    transition: all 0.3s;
}

.category-button:hover:not(.active) {
    background-color: var(--color-accent);
    color: var(--color-bg-module);
    border-color: var(--color-accent);
}

.category-button.active {
    background-color: var(--color-accent);
    color: var(--color-bg-module);
    font-weight: 600;
    border-color: var(--color-accent);
    box-shadow: 0 3px 8px rgba(255, 193, 7, 0.4);
}

/* --- Content Grid --- */
#game-list-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}

/* --- Game Card Styling (Modular) --- */
.game-card {
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg-module);
    border: 1px solid var(--color-border-subtle);
    text-decoration: none;
    color: var(--color-text-dark);
    border-radius: var(--radius-large);
    overflow: hidden;
    transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
    animation: fadeIn 0.5s ease-out forwards;
}

.game-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Image Placeholder */
.card-thumbnail {
    width: 100%;
    height: 180px;
    background-color: #E0E0F0; /* Light Purple/Blue for contrast */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1em;
    color: var(--color-text-dark);
    font-weight: 500;
    border-bottom: 2px solid var(--color-border-subtle);
}

/* Card Content */
.card-content {
    padding: 18px;
    flex-grow: 1;
}

.card-content h4 {
    font-size: 1.3em;
    margin: 0 0 8px 0;
    color: var(--color-accent);
}

.card-content p {
    font-size: 0.95em;
    color: var(--color-text-dark);
    margin-bottom: 12px;
}

.tag-container {
    margin-top: auto; /* Push tags to the bottom */
    padding-top: 10px;
    border-top: 1px dashed var(--color-border-subtle);
}

.tag {
    display: inline-block;
    margin-right: 8px;
    padding: 4px 10px;
    background-color: #F8F8F8;
    border: 1px solid var(--color-border-subtle);
    color: #555555;
    font-size: 0.8em;
    border-radius: 4px;
}

/* --- Footer and Utility --- */
.aether-footer {
    margin-top: 60px;
    padding: 25px 0;
    border-top: 1px solid var(--color-border-subtle);
    text-align: center;
    font-size: 0.85em;
    color: #999999;
}

.aether-footer a {
    color: var(--color-text-dark);
    text-decoration: none;
    margin: 0 15px;
    transition: color 0.2s;
}

.aether-footer a:hover {
    color: var(--color-accent);
}

#view-title {
    font-size: 1.1em;
    color: var(--color-text-dark);
    font-weight: 600;
    margin-bottom: 20px;
    padding-left: 5px;
    border-left: 5px solid var(--color-accent);
    margin-top: 10px;
}

#no-results-message {
    grid-column: 1 / -1;
    padding: 40px;
    text-align: center;
    border: 1px solid #CCC;
    border-radius: var(--radius-large);
    font-size: 1.2em;
    margin-top: 30px;
}

/* Animation for Filtering */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}