:root {
    --bg-color: #f4f4f0;
    --text-primary: #111111;
    --text-secondary: #444444;
    --border-color: #000000;
    --card-shadow: 8px 8px 0px #000000;
    --hover-shadow: 2px 2px 0px #000000;
    
    /* Retro Arcade Colors */
    --color-pink: #ff90e8;
    --color-yellow: #ffc900;
    --color-green: #23a094;
    --color-blue: #90a8ed;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    /* Grid Pattern */
    background-image: radial-gradient(var(--border-color) 2px, transparent 2px);
    background-size: 30px 30px;
    background-position: 0 0;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background-color: var(--color-yellow);
    border-bottom: 4px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header h1 {
    margin: 0;
    font-family: 'Press Start 2P', cursive;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-transform: uppercase;
    line-height: 1.5;
}

.header h1 span {
    color: #ff003c;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 12px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.logout-link {
    background: none;
    border: none;
    color: var(--accent-color);
    font-family: 'Press Start 2P', cursive;
    font-size: 0.6rem;
    cursor: pointer;
    padding: 0;
    margin-top: 4px;
    text-decoration: underline;
    transition: color 0.2s;
}

.logout-link:hover {
    color: #fff;
}

.avatar {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1.2rem;
    border: 2px solid #fff;
}

.error-msg {
    color: #ff4757;
    font-size: 0.8rem;
    margin-bottom: 1rem;
    min-height: 1.2rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.hero {
    text-align: center;
    margin-bottom: 4rem;
    background: #fff;
    border: 5px solid var(--border-color);
    padding: 3rem;
    box-shadow: 12px 12px 0px var(--border-color);
    transform: rotate(-1.5deg);
    transition: transform 0.2s;
}

.hero:hover {
    transform: rotate(0deg);
}

.hero h2 {
    font-size: 3.5rem;
    font-weight: 900;
    margin: 0 0 1rem 0;
    text-transform: uppercase;
    font-family: 'Press Start 2P', cursive;
    color: #ff003c;
    text-shadow: 4px 4px 0px #000;
}

.hero p {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin: 0;
    font-weight: 900;
    text-transform: uppercase;
}

/* Controls */
.controls {
    margin-bottom: 3rem;
    display: flex;
    justify-content: center;
}

.search-bar {
    position: relative;
    width: 100%;
    max-width: 600px;
}

.search-bar svg {
    position: absolute;
    left: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--border-color);
}

.search-bar input {
    width: 100%;
    padding: 1.5rem 1.5rem 1.5rem 4rem;
    background: #fff;
    border: 4px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.25rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 900;
    box-shadow: var(--card-shadow);
    transition: all 0.1s ease;
    border-radius: 0;
}

.search-bar input:focus {
    outline: none;
    transform: translate(6px, 6px);
    box-shadow: var(--hover-shadow);
    background: var(--color-yellow);
}

/* Category Sections */
.category-section {
    margin-bottom: 5rem;
}

.category-title {
    font-size: 1.2rem;
    font-family: 'Press Start 2P', cursive;
    margin-bottom: 2.5rem;
    display: inline-block;
    padding: 1rem 1.5rem;
    border: 4px solid var(--border-color);
    text-transform: uppercase;
    line-height: 1.5;
}

/* Poker Grid (Horizontal Scroll) */
.grid {
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    gap: 2rem;
    padding-bottom: 2rem;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
}

/* Custom retro scrollbar */
.grid::-webkit-scrollbar {
    height: 14px;
}
.grid::-webkit-scrollbar-track {
    background: #fff;
    border: 4px solid var(--border-color);
}
.grid::-webkit-scrollbar-thumb {
    background: var(--color-pink);
    border: 2px solid var(--border-color);
}

.card {
    background: #fff;
    border: 5px solid var(--border-color);
    padding: 2rem 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.1s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    position: relative;
    box-shadow: var(--card-shadow);
    border-radius: 0;
    
    /* Poker card style */
    min-width: 220px;
    width: 220px;
    flex-shrink: 0;
    scroll-snap-align: start;
}

/* Randomize card accent colors */
.card:nth-child(4n+1) .icon-wrapper { background: var(--color-pink); }
.card:nth-child(4n+2) .icon-wrapper { background: var(--color-yellow); }
.card:nth-child(4n+3) .icon-wrapper { background: var(--color-green); }
.card:nth-child(4n+4) .icon-wrapper { background: var(--color-blue); }

.card:hover {
    transform: translate(6px, 6px);
    box-shadow: var(--hover-shadow) !important;
    background: #fafafa;
}

.icon-wrapper {
    width: 100px;
    height: 100px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    border: 4px solid var(--border-color);
    box-shadow: 4px 4px 0px var(--border-color);
    border-radius: 12px;
    background: #fff;
    overflow: hidden;
}

.card-icon-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    image-rendering: pixelated;
    transition: transform 0.2s ease;
}

.card:hover .card-icon-img {
    transform: scale(1.1);
}

.card-content {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    text-align: center;
    flex: 1;
}

.title {
    font-size: 1.4rem;
    font-weight: 900;
    margin: 0 0 0.8rem 0;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
    font-weight: 700;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    box-sizing: border-box;
    font-size: 1.1rem;
    font-weight: 900;
    text-transform: uppercase;
    color: var(--text-primary);
    background: var(--color-yellow);
    padding: 0.8rem;
    border: 4px solid var(--border-color);
    box-shadow: 4px 4px 0px var(--border-color);
    transition: all 0.1s ease;
    margin-top: auto;
}

.card:hover .card-footer {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0px var(--border-color);
}

.card-footer svg {
    margin-left: 0.5rem;
    stroke-width: 3;
}

/* Themes based on category index */
/* Theme 0 */
.theme-0 .category-title { background: var(--color-pink); color: #000; box-shadow: 8px 8px 0px var(--color-blue); }
.theme-0 .card { box-shadow: 8px 8px 0px var(--color-pink); }
.theme-0 .grid::-webkit-scrollbar-thumb { background: var(--color-pink); }
.theme-0 .card-footer { background: var(--color-yellow); }
.theme-0 .card:hover .card-footer { background: var(--color-blue); }

/* Theme 1 */
.theme-1 .category-title { background: var(--color-blue); color: #000; box-shadow: 8px 8px 0px var(--color-pink); }
.theme-1 .card { box-shadow: 8px 8px 0px var(--color-blue); }
.theme-1 .grid::-webkit-scrollbar-thumb { background: var(--color-blue); }
.theme-1 .card-footer { background: var(--color-green); }
.theme-1 .card:hover .card-footer { background: var(--color-pink); }

/* Theme 2 */
.theme-2 .category-title { background: var(--color-green); color: #000; box-shadow: 8px 8px 0px var(--color-yellow); }
.theme-2 .card { box-shadow: 8px 8px 0px var(--color-green); }
.theme-2 .grid::-webkit-scrollbar-thumb { background: var(--color-green); }
.theme-2 .card-footer { background: var(--color-pink); }
.theme-2 .card:hover .card-footer { background: var(--color-yellow); }

/* Theme 3 */
.theme-3 .category-title { background: var(--color-yellow); color: #000; box-shadow: 8px 8px 0px var(--color-green); }
.theme-3 .card { box-shadow: 8px 8px 0px var(--color-yellow); }
.theme-3 .grid::-webkit-scrollbar-thumb { background: var(--color-yellow); }
.theme-3 .card-footer { background: var(--color-blue); }
.theme-3 .card:hover .card-footer { background: var(--color-green); }

/* Login Overlay Styles */
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    background-image: radial-gradient(var(--border-color) 2px, transparent 2px);
    background-size: 30px 30px;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-box {
    background: #fff;
    border: 5px solid var(--border-color);
    padding: 3rem;
    width: 100%;
    max-width: 450px;
    box-shadow: 15px 15px 0px var(--border-color);
    text-align: center;
}

.login-header h2 {
    font-family: 'Press Start 2P', cursive;
    font-size: 1.5rem;
    color: #ff003c;
    text-shadow: 3px 3px 0px #000;
    margin-bottom: 1rem;
}

.login-header p {
    font-weight: 900;
    margin-bottom: 2rem;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.login-form {
    text-align: left;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 900;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    border: 4px solid var(--border-color);
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    background: var(--color-yellow);
}

.login-btn {
    width: 100%;
    padding: 1rem;
    background: var(--color-blue);
    border: 4px solid var(--border-color);
    font-family: 'Press Start 2P', cursive;
    font-size: 0.9rem;
    cursor: pointer;
    box-shadow: 5px 5px 0px var(--border-color);
    margin-top: 1rem;
    transition: all 0.1s;
}

.login-btn:hover {
    transform: translate(2px, 2px);
    box-shadow: 3px 3px 0px var(--border-color);
    background: var(--color-pink);
}

.login-footer {
    margin-top: 2rem;
    font-size: 0.8rem;
    font-weight: 900;
}

.login-footer a {
    color: #ff003c;
    text-decoration: none;
}

.error-msg {
    color: #ff003c;
    font-weight: 900;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    text-transform: uppercase;
}

/* Help Button & Drawer */
.help-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-yellow);
    color: var(--border-color);
    border: 4px solid var(--border-color);
    font-family: 'Press Start 2P', cursive;
    font-size: 24px;
    cursor: pointer;
    z-index: 2000;
    box-shadow: 6px 6px 0 var(--border-color);
    transition: all 0.1s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.help-toggle:hover {
    transform: translate(2px, 2px);
    box-shadow: 4px 4px 0 var(--border-color);
    background: var(--color-pink);
}

.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 2001;
    display: none;
    transition: opacity 0.3s ease;
}

.readme-drawer {
    position: fixed;
    top: 0;
    right: -500px;
    width: 500px;
    max-width: 90vw;
    height: 100%;
    background: #fff;
    border-left: 6px solid var(--border-color);
    z-index: 2002;
    transition: right 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -15px 0 0 rgba(0,0,0,0.1);
}

.readme-drawer.active {
    right: 0;
}

.drawer-header {
    padding: 2rem;
    background: var(--border-color);
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.drawer-header h3 {
    font-family: 'Press Start 2P', cursive;
    font-size: 14px;
    margin: 0;
}

.close-drawer {
    background: none;
    border: none;
    color: #fff;
    font-size: 40px;
    cursor: pointer;
    line-height: 1;
}

.drawer-content {
    padding: 3rem;
    overflow-y: auto;
    flex-grow: 1;
    font-family: 'Outfit', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
}

.drawer-content h1, .drawer-content h2 {
    font-family: 'Press Start 2P', cursive;
    font-size: 1.1rem;
    margin: 2.5rem 0 1rem 0;
    color: #ff003c;
    border-bottom: 4px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.drawer-content h1:first-child { margin-top: 0; }

.drawer-content p, .drawer-content li {
    font-size: 1.1rem;
    margin-bottom: 1.2rem;
    font-weight: 700;
}

.drawer-content ul {
    padding-left: 1.5rem;
}

.drawer-content code {
    background: var(--color-yellow);
    padding: 0.2rem 0.5rem;
    border: 2px solid var(--border-color);
    font-weight: 900;
    font-family: monospace;
}

/* Custom Scrollbar for Drawer */
.drawer-content::-webkit-scrollbar {
    width: 8px;
}
.drawer-content::-webkit-scrollbar-track {
    background: #f0f0f0;
}
.drawer-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}