@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&family=Orbitron:wght@400..900&family=Play:wght@400;700&family=Press+Start+2P&display=swap');

:root {
    --primary-color: #0ff;
    --secondary-color: #f0f;
    --success-color: #0f0;
    --danger-color: #f00;
    --warning-color: #ff0;
    --bg-color: #000;
    --panel-bg: rgba(0, 20, 10, 0.85);
    --font-mono: 'IBM Plex Mono', monospace;
    --font-cyber: 'Orbitron', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    /* Zabránenie modrého označovania pri rýchlom tapaní na mobiloch */
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

input {
    user-select: auto; /* Povoľuje označenie vo vnútri inputu */
}

body {
    font-family: var(--font-mono);
    background-color: var(--bg-color);
    background-image: url('background.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

/* CRT effect */
#crt-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    background-size: 100% 2px, 3px 100%;
    z-index: 9999;
    pointer-events: none;
}

#backgroundVideo {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    object-fit: cover;
    z-index: -1;
    display: none;
    filter: brightness(0.5);
}

.overlay-screen {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(0,0,0,0.9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
    transition: opacity 0.5s ease-out;
}
.overlay-screen.hidden {
    opacity: 0;
    pointer-events: none;
}
.overlay-screen img {
    max-width: 80%;
    max-height: 60vh;
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 20px var(--primary-color);
    margin-bottom: 2rem;
    border-radius: 10px;
}
.blink {
    font-family: var(--font-cyber);
    color: var(--primary-color);
    font-size: 1.5rem;
    animation: blinker 1.5s linear infinite;
    cursor: pointer;
}
@keyframes blinker {
    50% { opacity: 0; }
}

.game-container {
    background: var(--panel-bg);
    border: 2px solid var(--primary-color);
    border-radius: 10px;
    padding: 1.5rem;
    width: 95%;
    max-width: 600px;
    box-shadow: 0 0 15px var(--primary-color), inset 0 0 10px var(--primary-color);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    z-index: 10;
    backdrop-filter: blur(5px);
    max-height: 95vh;
    overflow-y: auto;
}

.game-header {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-cyber);
    font-size: 1.2rem;
    border-bottom: 1px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.neon-text {
    text-shadow: 0 0 10px currentColor;
}
.neon-text.red { color: var(--danger-color); }
.neon-text.yellow { color: var(--warning-color); }
.neon-text.green { color: var(--success-color); }

.code-board {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.codeText {
    font-family: var(--font-cyber);
    color: var(--primary-color);
    font-size: 1.5rem;
    letter-spacing: 3px;
    text-shadow: 0 0 10px var(--primary-color);
}

.code-blocks {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    width: 100%;
}

.code-block {
    width: 80px;
    height: 80px;
    background: url('numbers.gif') center/cover;
    border: 2px solid var(--success-color);
    border-radius: 8px;
    box-shadow: 0 0 15px var(--success-color);
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-cyber);
    font-size: 3rem;
    color: var(--success-color);
    text-shadow: 0 0 15px var(--success-color);
    filter: grayscale(35%) brightness(1.2);
    transition: all 0.3s ease;
}

.code-block.cracked {
    background: #000;
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--primary-color);
    color: var(--primary-color);
    text-shadow: 0 0 20px var(--primary-color);
    animation: crack-pulse 0.5s ease-out;
}

@keyframes crack-pulse {
    0% { transform: scale(1); filter: brightness(1); }
    50% { transform: scale(1.1); filter: brightness(2); }
    100% { transform: scale(1); filter: brightness(1); }
}

.game-message {
    height: 2rem;
    font-size: 1.1rem;
    color: var(--warning-color);
    text-shadow: 0 0 5px var(--warning-color);
    text-align: center;
    width: 100%;
}

.input-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.input-section label {
    color: #ccc;
    font-size: 0.9rem;
    text-align: center;
}

#myInput {
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-family: var(--font-cyber);
    font-size: 2rem;
    padding: 0.5rem;
    width: 90%;
    max-width: 300px;
    text-align: center;
    border-radius: 8px;
    outline: none;
    box-shadow: inset 0 0 10px rgba(0, 255, 255, 0.2);
    transition: box-shadow 0.3s;
}

#myInput:focus {
    box-shadow: 0 0 15px var(--primary-color), inset 0 0 15px var(--primary-color);
}

/* Skryť šípky z input type="number" */
#myInput::-webkit-outer-spin-button,
#myInput::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
#myInput[type=number] {
    -moz-appearance: textfield;
}

.btn-group {
    display: flex;
    gap: 1rem;
    width: 100%;
    justify-content: center;
}

.cyber-btn {
    font-family: var(--font-cyber);
    font-size: 1.5rem;
    padding: 0.8rem 1.5rem;
    border: none;
    cursor: pointer;
    border-radius: 8px;
    text-transform: uppercase;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
    font-weight: bold;
}

.cyber-btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.cyber-btn:active {
    transform: scale(0.95);
}

.cyber-btn.primary {
    background: var(--primary-color);
    color: #000;
    box-shadow: 0 0 15px var(--primary-color);
    flex-grow: 1; /* Nech je tlačidlo odoslať väčšie */
    max-width: 250px;
}

.cyber-btn.secondary {
    background: transparent;
    color: var(--danger-color);
    border: 2px solid var(--danger-color);
    box-shadow: inset 0 0 5px var(--danger-color);
}

/* Animations for hints */
.flash-red { animation: flashError 0.5s; }
.flash-green { animation: flashSuccess 0.5s; }

@keyframes flashError {
    0%, 100% { box-shadow: 0 0 15px var(--primary-color), inset 0 0 10px var(--primary-color); }
    50% { box-shadow: 0 0 30px var(--danger-color), inset 0 0 20px var(--danger-color); border-color: var(--danger-color); }
}
@keyframes flashSuccess {
    0%, 100% { box-shadow: 0 0 15px var(--primary-color), inset 0 0 10px var(--primary-color); }
    50% { box-shadow: 0 0 30px var(--success-color), inset 0 0 20px var(--success-color); border-color: var(--success-color); }
}

/* ---------------- ACTION MECHANICS ---------------- */

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

@keyframes shakeAnim {
    10%, 90% { transform: translate3d(-5px, 0, 0); }
    20%, 80% { transform: translate3d(5px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-10px, 0, 0); }
    40%, 60% { transform: translate3d(10px, 0, 0); }
}

.glitch-effect {
    animation: glitchAnim 0.3s linear both;
}

@keyframes glitchAnim {
    0% { filter: hue-rotate(0deg) contrast(1); transform: skewX(0deg); }
    20% { filter: hue-rotate(90deg) contrast(2); transform: skewX(-20deg); }
    40% { filter: hue-rotate(-90deg) contrast(2); transform: skewX(20deg); }
    60% { filter: hue-rotate(180deg) contrast(2); transform: skewX(-10deg); }
    80% { filter: hue-rotate(45deg) contrast(1.5); transform: skewX(10deg); }
    100% { filter: hue-rotate(0deg) contrast(1); transform: skewX(0deg); }
}

.virus-mode {
    background: rgba(80, 0, 0, 0.98);
    z-index: 1000;
}

.glitch-text {
    color: white;
    font-size: 3rem;
    font-family: var(--font-cyber);
    position: relative;
    text-shadow: 0.05em 0 0 rgba(255,0,0,0.75), -0.025em -0.05em 0 rgba(0,255,0,0.75), 0.025em 0.05em 0 rgba(0,0,255,0.75);
    animation: glitchTextAnim 500ms infinite;
    text-align: center;
    margin: 0 10px;
}

@keyframes glitchTextAnim {
    0% { text-shadow: 0.05em 0 0 rgba(255,0,0,0.75), -0.05em -0.025em 0 rgba(0,255,0,0.75), -0.025em 0.05em 0 rgba(0,0,255,0.75); }
    14% { text-shadow: 0.05em 0 0 rgba(255,0,0,0.75), -0.05em -0.025em 0 rgba(0,255,0,0.75), -0.025em 0.05em 0 rgba(0,0,255,0.75); }
    15% { text-shadow: -0.05em -0.025em 0 rgba(255,0,0,0.75), 0.025em 0.025em 0 rgba(0,255,0,0.75), -0.05em -0.05em 0 rgba(0,0,255,0.75); }
    49% { text-shadow: -0.05em -0.025em 0 rgba(255,0,0,0.75), 0.025em 0.025em 0 rgba(0,255,0,0.75), -0.05em -0.05em 0 rgba(0,0,255,0.75); }
    50% { text-shadow: 0.025em 0.05em 0 rgba(255,0,0,0.75), 0.05em 0 0 rgba(0,255,0,0.75), 0 -0.05em 0 rgba(0,0,255,0.75); }
    99% { text-shadow: 0.025em 0.05em 0 rgba(255,0,0,0.75), 0.05em 0 0 rgba(0,255,0,0.75), 0 -0.05em 0 rgba(0,0,255,0.75); }
    100% { text-shadow: -0.025em 0 0 rgba(255,0,0,0.75), -0.025em -0.025em 0 rgba(0,255,0,0.75), -0.025em -0.05em 0 rgba(0,0,255,0.75); }
}

.virus-desc {
    font-size: 1.2rem;
    color: white;
    margin-top: 1rem;
    font-family: var(--font-mono);
    text-align: center;
    padding: 0 1rem;
}

.virus-timer {
    font-size: 2.5rem;
    color: var(--warning-color);
    margin-top: 1rem;
    font-family: var(--font-cyber);
}

.floating-penalty {
    position: absolute;
    color: var(--danger-color);
    font-size: 3rem;
    font-weight: bold;
    font-family: var(--font-cyber);
    text-shadow: 0 0 10px var(--danger-color);
    z-index: 50;
    pointer-events: none;
    animation: floatUp 1.5s forwards;
}

@keyframes floatUp {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(-100px); opacity: 0; }
}

/* VIRUS KILL BUTTON */
.virus-kill-btn {
    background: var(--danger-color);
    color: white;
    font-family: var(--font-cyber);
    font-size: 2rem;
    border: 4px solid white;
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 0 30px var(--danger-color), inset 0 0 20px rgba(0,0,0,0.5);
    cursor: pointer;
    animation: pulse-danger 0.5s infinite alternate;
    text-shadow: 2px 2px 0 #000;
    transition: transform 0.1s;
}

.virus-kill-btn:active {
    transform: scale(0.85);
    background: white;
    color: var(--danger-color);
}

@keyframes pulse-danger {
    0% { box-shadow: 0 0 20px var(--danger-color); transform: scale(1); }
    100% { box-shadow: 0 0 50px var(--danger-color); transform: scale(1.05); }
}

@media (max-width: 600px) {
    .glitch-text {
        font-size: 2rem;
    }
    .virus-kill-btn {
        font-size: 1.5rem;
        padding: 1.5rem;
    }
}