:root {
    --bg-color: #000000;
    --target-color: #444444;
    --correct-color: #FFFFFF;
    --error-color: #FF0000;
    --success-color: #FFD700; /* Gold */
    --font-family: 'JetBrains Mono', 'Roboto Mono', monospace;
}

body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    color: var(--correct-color);
    font-family: var(--font-family);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

#game-container {
    text-align: center;
    position: relative;
    width: 100%;
    height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#word-display {
    font-size: 4rem;
    letter-spacing: 0.1rem;
    white-space: pre;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 1.5em; /* Fixed height to prevent vertical jump */
    transition: text-shadow 0.3s, color 0.3s;
    transform-origin: center center;
    will-change: transform;
}

#remaining-chars {
    color: var(--target-color);
}

.char-error {
    color: var(--error-color);
}

#cursor {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--correct-color);
    color: var(--bg-color);
    min-width: 1ch;
    height: 1.2em;
    padding: 0;
    margin: 0;
}

#cursor.cursor-error {
    background-color: var(--error-color);
}

#feedback-display {
    height: 2rem;
    margin-top: 1rem;
    font-size: 1.2rem;
    opacity: 0.6;
    transition: color 0.3s, text-shadow 0.3s;
}
.feedback-error { color: var(--error-color); }
.feedback-success { color: var(--correct-color); }
.feedback-perfect { 
    color: var(--success-color); 
    text-shadow: 0 0 5px var(--success-color); 
}

#result-screen {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10;
    animation: fadeIn 0.3s ease-out;
}
#result-title { font-size: 3rem; margin-bottom: 1rem; }
#result-title.success { color: var(--correct-color); }
#result-title.perfect { color: var(--success-color); text-shadow: 0 0 10px var(--success-color); }
#result-title.failed { color: var(--error-color); }
#result-wpm { font-size: 2rem; margin-bottom: 2rem; }
#result-instruction { font-size: 1rem; opacity: 0.5; animation: pulse 2s infinite; }

#library-modal {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(4px);
    z-index: 20;
    animation: fadeIn 0.2s ease-out;
}
#library-panel {
    position: absolute;
    top: 10%;
    right: 10%;
    bottom: 10%;
    left: 10%;
    background-color: rgba(17, 17, 17, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
    border: 1px solid var(--target-color);
    border-radius: 0;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}
#library-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}
#library-counter {
    position: static;
    margin: 0;
    text-align: right;
    font-size: 0.8rem;
    letter-spacing: 0.06rem;
    color: rgba(255, 255, 255, 0.5);
    border: none;
    border-radius: 0;
    padding: 0;
    background: transparent;
}
#library-panel h2 { margin: 0; font-size: 2.5rem; letter-spacing: 0.2rem; color: var(--success-color); text-align: left; }
#library-list {
    flex-grow: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 1.5rem;
    align-content: start;
    margin-top: 0.75rem;
}
.library-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    aspect-ratio: 5 / 7;
    height: auto;
    max-width: 280px;
    margin: 0 auto;
    width: 100%;
    padding: 1.2rem;
    border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    transition: transform 0.4s, box-shadow 0.4s, border-radius 0.3s, filter 0.3s;
    background-color: #1a1a1a;
    background-size: 150% 150%;
    background-position: var(--mouse-x, 50%) var(--mouse-y, 50%);
    position: relative;
    overflow: hidden;
}

/* Condition Tier Classes - Geometry & Ink Integrity */
.cond-0 { 
    border-radius: 20px !important; 
    filter: saturate(0.5) contrast(0.8) brightness(0.8);
}
.cond-1 { 
    border-radius: 12px !important; 
    filter: saturate(0.7) contrast(0.9) brightness(0.9);
}
.cond-2 { border-radius: 0px !important; } /* Baseline - Now Sharp */
.cond-3 { border-radius: 0px !important; filter: saturate(1.1) brightness(1.1); }
.cond-4 { border-radius: 0px !important; filter: saturate(1.2) contrast(1.1) brightness(1.25); }
.cond-5 { 
    border-radius: 0px !important; 
    filter: saturate(1.3) contrast(1.15) brightness(1.5) drop-shadow(0 0 50px var(--glow-color));
    animation: mint-aura 6s infinite alternate ease-in-out;
}
.cond-5:hover {
    filter: saturate(1.4) contrast(1.2) brightness(1.6) drop-shadow(0 0 25px var(--glow-color));
}

@keyframes mint-aura {
    0% { filter: saturate(1.3) contrast(1.15) brightness(1.5) drop-shadow(0 0 32px var(--glow-color)); }
    100% { filter: saturate(1.3) contrast(1.15) brightness(1.5) drop-shadow(0 0 64px var(--glow-color)); }
}

/* Surface Finish Overlays */
.card-finish {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 10;
    border-radius: inherit;
    overflow: hidden;
}

/* Tier 0-1: Scuffed Texture & Pale Curved Corners (Clipped Arcs) */
.cond-0 .card-finish {
    background-image: 
        radial-gradient(circle at 100% 100%, transparent 17px, rgba(255,255,255,0.2) 18px, rgba(255,255,255,0.5) 19px, transparent 21px),
        radial-gradient(circle at 0% 100%, transparent 17px, rgba(255,255,255,0.2) 18px, rgba(255,255,255,0.5) 19px, transparent 21px),
        radial-gradient(circle at 100% 0%, transparent 17px, rgba(255,255,255,0.2) 18px, rgba(255,255,255,0.5) 19px, transparent 21px),
        radial-gradient(circle at 0% 0%, transparent 17px, rgba(255,255,255,0.2) 18px, rgba(255,255,255,0.5) 19px, transparent 21px),
        repeating-linear-gradient(13deg, transparent, transparent 2px, rgba(255,255,255,0.06) 2px, rgba(255,255,255,0.06) 3px);
    background-size: 20px 20px, 20px 20px, 20px 20px, 20px 20px, 100% 100%;
    background-position: 0 0, 100% 0, 0 100%, 100% 100%, 0 0;
    background-repeat: no-repeat, no-repeat, no-repeat, no-repeat, repeat;
}
.cond-1 .card-finish {
    background-image: 
        radial-gradient(circle at 100% 100%, transparent 9px, rgba(255,255,255,0.1) 10px, rgba(255,255,255,0.3) 11px, transparent 13px),
        radial-gradient(circle at 0% 100%, transparent 9px, rgba(255,255,255,0.1) 10px, rgba(255,255,255,0.3) 11px, transparent 13px),
        radial-gradient(circle at 100% 0%, transparent 9px, rgba(255,255,255,0.1) 10px, rgba(255,255,255,0.3) 11px, transparent 13px),
        radial-gradient(circle at 0% 0%, transparent 9px, rgba(255,255,255,0.1) 10px, rgba(255,255,255,0.3) 11px, transparent 13px),
        repeating-linear-gradient(13deg, transparent, transparent 2px, rgba(255,255,255,0.04) 2px, rgba(255,255,255,0.04) 3px);
    background-size: 12px 12px, 12px 12px, 12px 12px, 12px 12px, 100% 100%;
    background-position: 0 0, 100% 0, 0 100%, 100% 100%, 0 0;
    background-repeat: no-repeat, no-repeat, no-repeat, no-repeat, repeat;
}

/* Tier 5: Liquid Gloss Glint */
.cond-5 .card-finish::after {
    content: "";
    position: absolute;
    top: -150%;
    left: -150%;
    width: 400%;
    height: 400%;
    background: linear-gradient(
        115deg,
        transparent 40%,
        rgba(255, 255, 255, 0.1) 45%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0.1) 55%,
        transparent 60%
    );
    will-change: transform;
    animation: glint-sweep 6s infinite ease-in-out;
    mix-blend-mode: soft-light;
}

@keyframes glint-sweep {
    0% { transform: translate(-20%, -20%); }
    15%, 100% { transform: translate(30%, 30%); }
}

.library-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.8);
}

.mini-card {
    max-width: 90px;
    padding: 0.4rem;
    cursor: pointer;
    justify-content: center;
    align-items: center;
    text-align: center;
}
.mini-card .card-word { 
    font-size: 1.0rem; 
    word-break: break-word;
    hyphens: auto;
    line-height: 1.1;
    position: relative;
    z-index: 3;
}
.mini-card.undiscovered {
    transform: rotate(180deg);
    opacity: 0.5;
    filter: grayscale(0.9);
    cursor: default;
    border: none;
}
.mini-card.undiscovered::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background-image: url("data:image/svg+xml,%3csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3e%3crect width='100%25' height='100%25' fill='none' rx='0' stroke='%23ffffff' stroke-opacity='0.35' stroke-width='2' stroke-dasharray='2, 8' stroke-linecap='round'/%3e%3c/svg%3e");
    pointer-events: none;
    z-index: 5;
}
.mini-card.undiscovered:hover {
    transform: rotate(180deg);
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}
.mini-card.undiscovered .card-word {
    transform: rotate(180deg);
    font-size: 0.72rem;
    color: #757575;
    letter-spacing: 0.06rem;
}
.mini-card.undiscovered.rarity-1 { background: #1d1d1d; }
.mini-card.undiscovered.rarity-2 { background: #142815; }
.mini-card.undiscovered.rarity-3 { background: #111a2e; }
.mini-card.undiscovered.rarity-4 { background: #291232; }
.mini-card.undiscovered.rarity-5 { background: #32280b; box-shadow: none; }

.card-header {
    border-bottom: 2px solid rgba(255,255,255,0.1);
    padding-bottom: 0.5rem;
    margin-bottom: 0.8rem;
    text-align: center;
    position: relative;
    z-index: 3;
}
.card-word {
    font-size: 1.8rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    color: var(--correct-color);
}

.card-def {
    flex-grow: 1;
    overflow-y: auto;
    font-style: italic;
    font-size: 0.9rem;
    line-height: 1.4;
    padding: 0.5rem 0;
    margin-bottom: 0.8rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    color: #cccccc;
    position: relative;
    z-index: 3;
}

.card-middle-spacer {
    flex-grow: 1;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 0.5rem;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    font-size: 0.85rem;
    opacity: 0.9;
    position: relative;
    z-index: 3;
}
.card-rarity { font-weight: bold; }
.card-rarity .stars { margin-left: 4px; }
.card-stat span { font-weight: bold; color: var(--correct-color); }

/* Custom Scrollbar for Card Definitions */
.card-def::-webkit-scrollbar { width: 4px; }
.card-def::-webkit-scrollbar-track { background: rgba(0,0,0,0.1); }
.card-def::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 4px; }
.card-def::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.4); }

/* Rarity Gradients */
.rarity-1 { --glow-color: rgba(255, 255, 255, 0.2); background-image: linear-gradient(145deg, #2a2a2a 0%, #111111 100%); border-color: #555; }
.rarity-2 { --glow-color: rgba(76, 175, 80, 0.35); background-image: linear-gradient(145deg, #1e3b20 0%, #0a140a 100%); border-color: #3e8a42; }
.rarity-3 { --glow-color: rgba(33, 150, 243, 0.4); background-image: linear-gradient(145deg, #1b2845 0%, #080d1a 100%); border-color: #3b60b5; }
.rarity-4 { --glow-color: rgba(156, 39, 176, 0.45); background-image: linear-gradient(145deg, #3d1c4a 0%, #15091a 100%); border-color: #9240b5; }
.rarity-5 { --glow-color: rgba(255, 215, 0, 0.5); background-image: linear-gradient(145deg, #4a3b10 0%, #1a1403 100%); border-color: #b58d22; box-shadow: 0 4px 50px rgba(255, 215, 0, 0.15); }
.rarity-5 .card-rarity { color: var(--success-color); text-shadow: 0 0 5px rgba(255,215,0,0.5); }
.rarity-5 .card-word { color: var(--success-color); }

/* Holographic Overlays */
.library-card:not(.undiscovered)::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    z-index: 2;
    opacity: 0.3;
    transition: opacity 0.3s, background-position 0.4s ease;
}
.library-card:not(.undiscovered):hover::after {
    opacity: 0.5;
}

/* Rare - Foil */
.library-card.rarity-3:not(.undiscovered)::after {
    background-image: linear-gradient(
        115deg, 
        transparent 20%, 
        rgba(255, 255, 255, 0.4) 45%, 
        rgba(255, 255, 255, 0.6) 50%, 
        rgba(255, 255, 255, 0.4) 55%, 
        transparent 80%
    );
    mix-blend-mode: overlay;
    background-size: 200% 200%;
    background-position: var(--mouse-x, 50%) var(--mouse-y, 50%);
}

/* Epic - Secret Rare / Prismatic */
.library-card.rarity-4:not(.undiscovered)::after {
    background-image: repeating-linear-gradient(
        135deg, 
        rgba(255, 0, 128, 0.1) 0%, 
        rgba(0, 255, 128, 0.1) 10%, 
        rgba(0, 128, 255, 0.1) 20%, 
        rgba(255, 128, 0, 0.1) 30%, 
        rgba(255, 0, 128, 0.1) 40%
    ),
    linear-gradient(
        115deg, 
        transparent 20%, 
        rgba(255, 255, 255, 0.5) 50%, 
        transparent 80%
    );
    mix-blend-mode: color-dodge;
    background-size: 400% 400%, 200% 200%;
    background-position: var(--mouse-x, 50%) var(--mouse-y, 50%), var(--mouse-x, 50%) var(--mouse-y, 50%);
}

/* Legendary - Ghost/God Cosmic Glitter Revamp */
.library-card.rarity-5:not(.undiscovered)::before {
    content: "";
    position: absolute;
    inset: -20%;
    pointer-events: none;
    z-index: 1;
    background-image: 
        radial-gradient(circle at 15% 15%, rgba(255,255,255,0.5) 0, rgba(255,255,255,0.1) 1px, transparent 3px),
        radial-gradient(circle at 85% 85%, rgba(255,255,255,0.2) 0, rgba(255,255,255,0.05) 1px, transparent 2px),
        radial-gradient(circle at 50% 50%, rgba(255,215,0,0.9) 0, rgba(255,215,0,0.2) 2px, transparent 5px),
        radial-gradient(circle at 25% 75%, rgba(255,255,255,0.7) 0, rgba(255,255,255,0.15) 1.5px, transparent 4px),
        radial-gradient(circle at 75% 25%, rgba(255,255,255,0.1) 0, transparent 2px),
        radial-gradient(circle at 10% 80%, rgba(255,215,0,0.95) 0, rgba(255,215,0,0.25) 2px, transparent 6px),
        radial-gradient(circle at 90% 20%, rgba(255,215,0,0.4) 0, rgba(255,215,0,0.1) 1px, transparent 3px);
    background-size: 183px 183px, 237px 237px, 291px 291px, 153px 153px, 211px 211px, 273px 273px, 251px 251px;
    background-position: 
        calc(var(--mouse-x) * 0.4) calc(var(--mouse-y) * 0.4),
        calc(var(--mouse-x) * -0.3) calc(var(--mouse-y) * 0.5),
        calc(var(--mouse-x) * 0.6) calc(var(--mouse-y) * -0.2),
        calc(var(--mouse-x) * -0.5) calc(var(--mouse-y) * -0.4),
        calc(var(--mouse-x) * 0.2) calc(var(--mouse-y) * 0.7),
        calc(var(--mouse-x) * -0.7) calc(var(--mouse-y) * 0.1),
        calc(var(--mouse-x) * 0.3) calc(var(--mouse-y) * -0.6);
    mix-blend-mode: color-dodge;
    animation: twinkle 4s ease-in-out infinite alternate;
    transition: background-position 0.4s ease;
}

.library-card.rarity-5:not(.undiscovered)::after {
    background-image: 
        linear-gradient(
            115deg, 
            transparent 30%, 
            rgba(255, 215, 0, 0.5) 48%, 
            rgba(255, 255, 255, 0.8) 50%, 
            rgba(255, 215, 0, 0.5) 52%, 
            transparent 70%
        );
    mix-blend-mode: overlay;
    background-size: 200% 200%;
    background-position: var(--mouse-x, 50%) var(--mouse-y, 50%);
    opacity: 0.6;
}

#enlarged-card-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.85);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 30;
}

#enlarged-card-container.library-card:hover {
    transform: none;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    cursor: default;
}

#rarity-display {
    color: var(--target-color);
    font-size: 0.8rem;
    padding: 0.2rem 0.5rem;
}
.library-instruction { text-align: center; margin-top: 2rem; opacity: 0.5; font-size: 0.9rem; }

/* HUD Rarity Coloring */
#rarity-display.hud-rarity-1 { color: #ffffff; } /* Common */
#rarity-display.hud-rarity-2 { color: #4caf50; } /* Uncommon */
#rarity-display.hud-rarity-3 { color: #2196f3; } /* Rare */
#rarity-display.hud-rarity-4 { color: #9c27b0; } /* Epic */
#rarity-display.hud-rarity-5 { color: #FFD700; } /* Legendary */

#hud {
    position: fixed;
    bottom: 2.5rem;
    display: flex;
    gap: 3rem;
    font-size: 1rem;
    align-items: center;
    background: rgba(255,255,255,0.03);
    padding: 0.8rem 2rem;
    border-radius: 50px;
}
#hearts-display {
    color: var(--error-color);
    letter-spacing: 4px;
    font-size: 1.2rem;
}
#timer-display {
    font-family: var(--font-family);
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--correct-color);
    letter-spacing: 0.1rem;
    transition: color 0.3s;
}
#timer-display.danger {
    color: var(--error-color);
    animation: pulse-danger 1s infinite;
}
@keyframes pulse-danger {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
}
.time-feedback {
    position: absolute;
    top: -2rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--success-color);
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
    pointer-events: none;
    z-index: 10;
}
@keyframes float-up-fade {
    0% { opacity: 0; transform: translateY(0) scale(0.8); }
    15% { opacity: 1; transform: translateY(-10px) scale(1.1); }
    80% { opacity: 1; transform: translateY(-30px) scale(1); }
    100% { opacity: 0; transform: translateY(-40px) scale(0.9); }
}
.float-animation {
    animation: float-up-fade 1s ease-out forwards;
}

#instruction-display {
    color: var(--correct-color);
    font-size: 0.8rem;
    border: 0px;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    background: none;
    cursor: pointer;
    transition: all 0.2s;
    display: grid;
    place-items: center;
    vertical-align: top;
}
#instruction-display:hover {
    background: var(--target-color);
}

/* Match the visual style of the TAB LexDex button */
#skip-button {
    color: var(--correct-color);
    font-size: 0.8rem;
    border: 0px;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    background: none;
    cursor: pointer;
    transition: all 0.2s;
    display: grid;
    place-items: center;
    vertical-align: top;
}
#skip-button:hover {
    background: var(--target-color);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.shake {
    animation: shake 0.4s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}

.success-flash {
    animation: success-flash 2s cubic-bezier(0.19, 1, 0.22, 1) forwards;
    will-change: transform;
}

@keyframes success-flash {
    0% { color: var(--success-color); transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { color: var(--correct-color); transform: scale(1.1); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

#loading-screen {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}
#loading-text {
    font-size: 2rem;
    letter-spacing: 0.2rem;
    color: var(--correct-color);
    animation: pulse 2s infinite;
}

#start-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 90;
    cursor: pointer;
    animation: fadeIn 0.2s ease-out;
}
#start-overlay-text {
    color: #ffffff;
    font-size: 1.6rem;
    letter-spacing: 0.12rem;
    text-transform: uppercase;
    opacity: 0.95;
    user-select: none;
}

#header {
    position: absolute;
    top: 2rem;
    left: 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    opacity: 0.3;
    transition: opacity 0.3s;
    z-index: 5;
}
#header:hover { opacity: 1; }
#logo { font-size: 1.5rem; font-weight: bold; color: var(--correct-color); letter-spacing: 0.1rem; }
#nav-bar { display: flex; gap: 1rem; }

#utility-controls {
    position: absolute;
    top: 2rem;
    right: 2rem;
    display: flex;
    gap: 0.65rem;
    opacity: 0.45;
    transition: opacity 0.3s;
    z-index: 6;
}
#utility-controls:hover { opacity: 1; }
.utility-btn {
    width: auto;
    height: auto;
    border-radius: 0;
    border: none;
    background: none;
    color: var(--correct-color);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, opacity 0.2s;
    padding: 0.1rem;
}
.utility-btn:hover {
    color: var(--correct-color);
    transform: scale(1.08);
}
#sound-toggle-btn.muted {
    color: rgba(255, 255, 255, 0.65);
}
#social-links {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    gap: 0.65rem;
    z-index: 6;
}
#social-links .social-btn:not(#kofi-link) {
    opacity: 0.25;
}
#social-links:hover .social-btn:not(#kofi-link) {
    opacity: 1;
}
.social-btn {
    width: auto;
    height: auto;
    border-radius: 0;
    border: none;
    background: none;
    color: var(--correct-color);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, opacity 0.2s;
    padding: 0.1rem;
    text-decoration: none;
}
.social-btn:hover {
    color: var(--correct-color);
    transform: scale(1.08);
}
.material-symbols-outlined {
    font-size: 1.25rem;
    line-height: 1;
    user-select: none;
}

.nav-btn {
    background: transparent;
    border: 1px solid var(--target-color);
    color: var(--target-color);
    padding: 0.4rem 1rem;
    font-family: var(--font-family);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}
.nav-btn:hover { color: var(--correct-color); border-color: var(--correct-color); }
.nav-btn.active { color: var(--bg-color); background-color: var(--correct-color); border-color: var(--correct-color); }

#help-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 40;
    animation: fadeIn 0.2s ease-out;
}
#help-card {
    width: min(600px, 88vw);
    background-color: rgba(17, 17, 17, 0.96);
    border: 1px solid var(--target-color);
    border-radius: 12px;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.75);
    padding: 1.5rem 1.7rem;
}
#help-card h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--success-color);
    letter-spacing: 0.08rem;
}
#help-card p {
    margin: 0.45rem 0;
    color: #d9d9d9;
    line-height: 1.35;
    font-size: 0.95rem;
}
.help-instruction {
    margin-top: 1rem;
    font-size: 0.8rem;
    color: #8a8a8a;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

@keyframes cosmic-rotate {
    0% { transform: scale(1.0) rotate(0deg); }
    100% { transform: scale(1.05) rotate(3deg); }
}