/* Default Theme (Dark) */
:root {
    --card-bg: rgba(10, 15, 25, 0.85);
    --text-main: #ff3333;
    --text-muted: #cc0000;
    --text-dim: #660000;
    --border-color: #ff3333;
    --border-dim: rgba(255, 51, 51, 0.3);
    --input-bg: rgba(25, 0, 0, 0.5);
    --btn-hover-bg: rgba(255, 51, 51, 0.15);

    /* Global Background relies on CSS variable for smooth transitions between colors if image fails */
    --global-bg-img: url('themes/dark/background.png');
    --global-bg-color: #050510;

    /* Grid colors for dark mode */
    --grid-line: rgba(0, 255, 65, 0.1);

    /* Feedback Colors */
    --status-default: rgba(17, 17, 17, 0.5);
    --status-red: #ff003c;
    --status-orange: #ffb000;
    --status-green: #00ff41;
}

/* Light Theme Overrides */
html.light-theme {
    --card-bg: rgba(240, 245, 250, 0.9);
    --text-main: #0078D7;
    --text-muted: #2980b9;
    --text-dim: #003666;
    --border-color: #0078D7;
    --border-dim: rgba(0, 120, 215, 0.4);
    --input-bg: rgba(220, 240, 255, 0.7);
    --btn-hover-bg: rgba(0, 120, 215, 0.15);

    --global-bg-img: url('themes/light/background.png');
    --global-bg-color: #e0f0ff;

    /* Grid colors for light mode */
    --grid-line: rgba(0, 120, 215, 0.15);

    --status-default: rgba(200, 200, 200, 0.5);
    --status-red: #cc0030;
    --status-orange: #d19000;
    --status-green: #008f11;
}

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

body {
    font-family: 'Share Tech Mono', monospace;
    background-color: var(--global-bg-color);
    background-image: var(--global-bg-img);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
    /* Smooth transitions for all theme-dependent properties */
    transition: background-image 0.5s ease-in-out, background-color 0.5s ease, color 0.5s ease;
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    box-shadow: 0 0 10px var(--border-dim);
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    box-shadow: 0 0 15px var(--border-color);
    transform: scale(1.1);
}

/* Icon visibility based on theme */
.light-icon {
    display: none;
}

.dark-icon {
    display: block;
}

html.light-theme .light-icon {
    display: block;
}

html.light-theme .dark-icon {
    display: none;
}

/* Grid overlay */
.grid-background {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 30px 30px;
    transform: perspective(500px) rotateX(60deg);
    animation: grid-move 20s linear infinite;
    z-index: 0;
    pointer-events: none;
}

.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0) 50%, rgba(0, 0, 0, 0.15) 50%, rgba(0, 0, 0, 0.15));
    background-size: 100% 4px;
    z-index: 100;
    pointer-events: none;
    opacity: 0.6;
}

@keyframes grid-move {
    0% {
        transform: perspective(500px) rotateX(60deg) translateY(0);
    }

    100% {
        transform: perspective(500px) rotateX(60deg) translateY(30px);
    }
}

.container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 550px;
    padding: 20px;
}

.card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    box-shadow: 0 0 20px var(--border-dim), inset 0 0 20px var(--border-dim);
    padding: 30px;
    position: relative;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 20px 100%, 0 calc(100% - 20px));
    transition: background 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

.card::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: -2px;
    width: 25px;
    height: 25px;
    border-left: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
    background: transparent;
    transition: border-color 0.5s ease;
}

/* Base View Toggling */
.screen-view.hidden {
    display: none !important;
}

/* START SCREEN */
.title-section {
    text-align: center;
    margin-bottom: 30px;
}

.title-section h1 {
    font-size: 2.2rem;
    color: var(--text-main);
    text-shadow: 0 0 10px var(--border-dim);
    letter-spacing: 2px;
}

.title-section p {
    color: var(--text-muted);
}

.mode-btn {
    display: block;
    width: 100%;
    margin-bottom: 15px;
    padding: 20px;
    background: transparent;
    border: 1px solid var(--border-dim);
    color: var(--text-main);
    text-align: left;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.mode-btn::before {
    content: '>';
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    transition: 0.3s;
}

.mode-btn:hover {
    background: var(--btn-hover-bg);
    border-color: var(--border-color);
    padding-left: 30px;
}

.mode-btn:hover::before {
    left: 10px;
    opacity: 1;
}

.mode-title {
    font-size: 1.4rem;
    font-weight: bold;
    margin-bottom: 5px;
}

.mode-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* GAME INTERFACE */
.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-dim);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.level-badge {
    font-size: 1.8rem;
    font-weight: bold;
    text-shadow: 0 0 10px var(--border-dim);
}

.max-level {
    font-size: 1rem;
    color: var(--text-muted);
}

.stats {
    display: flex;
    gap: 15px;
}

.stat-box {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.stat-box .label {
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.stat-box .value {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--text-main);
}

.terminal-text {
    margin-bottom: 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.input-group {
    position: relative;
    margin-bottom: 25px;
}

.input-group input {
    width: 100%;
    background: var(--input-bg);
    border: 2px solid var(--border-dim);
    color: var(--text-main);
    padding: 16px 20px;
    font-size: 1.5rem;
    font-family: 'Share Tech Mono', monospace;
    outline: none;
    letter-spacing: 5px;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.input-group input:focus {
    border-color: var(--border-color);
    box-shadow: 0 0 15px var(--border-dim);
}

.input-group input::placeholder {
    color: var(--text-dim);
    letter-spacing: 2px;
}

.feedback-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 48px;
}

.feedback-circles {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.circle {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    background-color: var(--status-default);
    border: 1px solid var(--border-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.circle.red {
    background-color: transparent;
    border-color: var(--status-red);
    box-shadow: 0 0 8px var(--status-red) inset;
}

.circle.red::after {
    content: 'X';
    color: var(--status-red);
    font-weight: bold;
}

.circle.orange {
    background-color: transparent;
    border-color: var(--status-orange);
    box-shadow: 0 0 8px var(--status-orange) inset;
}

.circle.orange::after {
    content: '?';
    color: var(--status-orange);
    font-weight: bold;
}

.circle.green {
    background-color: var(--status-green);
    border-color: var(--status-green);
    box-shadow: 0 0 15px var(--status-green);
}

.circle.green::after {
    content: '';
    width: 6px;
    height: 12px;
    border: solid #000;
    border-width: 0 3px 3px 0;
    transform: rotate(45deg) translate(-1px, -2px);
}

html.light-theme .circle.green::after {
    border-color: #fff;
}

.action-btn {
    background: var(--text-main);
    border: none;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-color);
    /* Changes based on theme background */
    cursor: pointer;
    clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.action-btn:hover {
    background: var(--text-muted);
    color: #fff;
    transform: scale(1.05);
}

.success-message {
    margin-top: 25px;
    padding: 15px;
    background: var(--btn-hover-bg);
    border-left: 4px solid var(--status-green);
    color: var(--status-green);
    font-weight: bold;
    animation: flash 1s infinite alternate;
}

@keyframes flash {
    0% {
        opacity: 0.8;
    }

    100% {
        opacity: 1;
        text-shadow: 0 0 8px var(--status-green);
    }
}

/* GAME COMPLETE */
#game-complete {
    text-align: center;
}

#game-complete h1 {
    color: var(--status-orange);
    margin-bottom: 10px;
    font-size: 2rem;
}

.restart-btn {
    margin-top: 25px;
    background: transparent;
    border: 2px solid var(--text-main);
    color: var(--text-main);
    padding: 15px 30px;
    font-family: inherit;
    font-size: 1.2rem;
    cursor: pointer;
    transition: 0.3s;
}

.restart-btn:hover {
    background: var(--text-main);
    color: var(--bg-color);
}

/* Site Logo */
.site-logo {
    position: fixed;
    top: 20px;
    left: 20px;
    max-width: 250px;
    max-height: 250px;
    width: auto;
    height: auto;
    object-fit: contain;
    z-index: 1000;
    transition: filter 0.5s ease;
    filter: drop-shadow(0 0 10px var(--border-color));
}