@import url("https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;900&family=Share+Tech+Mono&display=swap");

:root {
    --color-bg: #03030e;
    --color-surface: #0a0b1e;
    --color-surface-glow: #13173a;
    --color-white: #ffffff;
    --color-pink: #ff53a0;
    --color-pink-glow: rgba(255, 83, 160, 0.4);
    --color-cyan: #00f0ff;
    --color-cyan-glow: rgba(0, 240, 255, 0.3);
    --color-green: #00ff66;
    --color-lava: #ff3c00;
    --color-rock: #020205;
    --cell: 3rem;
    --positionLeft: 0;
    --positionTop: 0;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    background-color: var(--color-bg);
    color: var(--color-white);
    font-family: "Orbitron", sans-serif;
    overflow: hidden;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.6;
}

.preloader {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), visibility 0.6s;
}

.preloader--hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    /* 🔥 FIX: allow clicks to pass through */
}

.preloader__content {
    text-align: center;
    width: 280px;
}

.preloader__logo {
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 0.5rem;
    margin-bottom: 2rem;
    text-shadow: 0 0 20px var(--color-pink-glow);
}

.preloader__logo .highlight {
    color: var(--color-pink);
}

.preloader__bar-container {
    height: 4px;
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 1rem;
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.preloader__bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-pink), var(--color-cyan));
    box-shadow: 0 0 8px var(--color-cyan);
    transition: width 0.1s linear;
}

.preloader__status {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.8rem;
    color: var(--color-cyan);
    letter-spacing: 0.1rem;
}

/* ── HUD ── */
.hud {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    box-sizing: border-box;
    padding: 1rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
    pointer-events: none;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.hud * {
    pointer-events: auto;
}

.hud__group {
    background: rgba(10, 11, 30, 0.6);
    border: 1px solid rgba(0, 240, 255, 0.2);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hud__label {
    font-size: 0.6rem;
    letter-spacing: 0.12rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0.1rem;
}

.hud__value {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-cyan);
    text-shadow: 0 0 10px var(--color-cyan-glow);
}

.hud__actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.btn {
    font-family: "Orbitron", sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.08rem;
    padding: 0.5rem 0.8rem;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(10, 11, 30, 0.8);
    color: var(--color-white);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-2px);
    border-color: var(--color-white);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.1);
}

.btn:active {
    transform: translateY(0);
}

.btn--primary {
    background: var(--color-pink);
    border-color: transparent;
    color: var(--color-white);
    font-size: 0.8rem;
    padding: 0.7rem 1.5rem;
    box-shadow: 0 4px 20px var(--color-pink-glow);
}

.btn--primary:hover {
    background: #ff77b4;
    box-shadow: 0 6px 25px rgba(255, 83, 160, 0.6);
}

.btn--danger {
    border-color: rgba(255, 60, 0, 0.4);
}

.btn--danger:hover {
    background: rgba(255, 60, 0, 0.15);
    border-color: var(--color-lava);
    box-shadow: 0 0 15px rgba(255, 60, 0, 0.3);
}

.btn--icon {
    padding: 0.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
}

.btn--icon:hover {
    color: var(--color-cyan);
    border-color: var(--color-cyan);
}

.btn--levels {
    border-color: rgba(0, 255, 102, 0.35);
    color: rgba(0, 255, 102, 0.9);
    font-size: 0.65rem;
    letter-spacing: 0.06rem;
}

.btn--levels:hover {
    border-color: var(--color-green);
    color: var(--color-green);
    box-shadow: 0 0 18px rgba(0, 255, 102, 0.25);
}

/* ── Viewport & Game Wrapper ── */
.viewport {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    perspective: 1000px;
}

.game-wrapper {
    padding: 1rem;
    background: rgba(19, 23, 58, 0.15);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6),
        inset 0 0 40px rgba(0, 240, 255, 0.03);
    transform-style: preserve-3d;
    transform: rotateX(32deg) rotateZ(-15deg);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.game-wrapper:hover {
    transform: rotateX(28deg) rotateZ(-10deg) translateY(-10px);
}

.game {
    position: relative;
    background: var(--color-rock);
    box-shadow: 0 0 0 4px var(--color-surface), 0 20px 40px rgba(0, 0, 0, 0.8);
    border-radius: 4px;
    overflow: visible;
    display: flex;
    flex-wrap: wrap;
    width: var(--game-width);
    height: var(--game-height);
}

.game--win::after,
.game--lose::after,
.game--final-win::after {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--color-white);
    background-color: rgba(3, 3, 14, 0.85);
    backdrop-filter: blur(8px);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.15rem;
    text-transform: uppercase;
    text-align: center;
    z-index: 50;
    animation: overlayFadeIn 0.3s ease forwards;
    transform: translateZ(40px);
    border: 2px solid transparent;
}

.game--win::after {
    content: "VECTOR RECONSTRUCTED";
    border-color: var(--color-green);
    color: var(--color-green);
}

.game--lose::after {
    content: "MATRIX COLLAPSE";
    border-color: var(--color-lava);
    color: var(--color-lava);
}

.game--final-win::after {
    content: "ALL CORES PURGED";
    border-color: var(--color-cyan);
    color: var(--color-cyan);
}

.game--tutorial::before {
    position: absolute;
    bottom: -5rem;
    left: 50%;
    transform: translateX(-50%) translateZ(20px);
    content: "USE ARROWS OR TAP CONTROLS";
    color: rgba(255, 255, 255, 0.6);
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.8rem;
    letter-spacing: 0.08rem;
    width: 100%;
    text-align: center;
    pointer-events: none;
    animation: pulseGlow 2s infinite ease-in-out;
    white-space: nowrap;
}

.game__cell {
    width: var(--cell);
    height: var(--cell);
    box-sizing: border-box;
    background: linear-gradient(135deg, #181b3a 0%, #0d0f26 100%);
    border: 1px solid rgba(3, 3, 14, 0.5);
    box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.03);
}

.game__cell--rock {
    background: linear-gradient(135deg, #2c2d35 0%, #121318 100%);
    transform: translateZ(14px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.2),
        -3px 3px 0 #0f1013;
}

.game__cell--lava {
    background: linear-gradient(135deg, var(--color-lava) 0%, #990000 100%);
    box-shadow: 0 0 15px rgba(255, 60, 0, 0.4), inset 0 0 8px rgba(255, 255, 255, 0.3);
    animation: pulseLava 3s infinite ease-in-out;
}

.game__cell--stop {
    background: linear-gradient(135deg, var(--color-cyan) 0%, #0088cc 100%);
    transform: translateZ(6px);
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.3),
        0 0 10px rgba(0, 240, 255, 0.4),
        -2px 2px 0 #005580;
}

.game__cell--end {
    background: linear-gradient(135deg, #00ff88 0%, #006633 100%);
    box-shadow: 0 0 20px rgba(0, 255, 102, 0.3);
    position: relative;
}

.game__cell--end::after {
    content: '';
    position: absolute;
    inset: 4px;
    border: 2px dashed rgba(255, 255, 255, 0.5);
    animation: rotateMatrix 8s linear infinite;
}

.game__player {
    position: absolute;
    width: calc(var(--cell) - 4px);
    height: calc(var(--cell) - 4px);
    margin: 2px;
    background: linear-gradient(135deg, #ff7bb7 0%, var(--color-pink) 100%);
    border-radius: 4px;
    top: calc(var(--positionTop) * var(--cell));
    left: calc(var(--positionLeft) * var(--cell));
    transition-property: top, left;
    transition-duration: 0.22s;
    transition-timing-function: cubic-bezier(0.25, 1, 0.5, 1);
    transform: translateZ(22px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.5),
        0 0 15px var(--color-pink),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        -4px 4px 0 #b31c5f;
    z-index: 10;
}

/* ── Touch Controls ── */
.touch-controls {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: grid;
    grid-template-areas:
        ". up ."
        "left . right"
        ". down .";
    grid-template-columns: 4rem 4rem 4rem;
    grid-template-rows: 4rem 4rem 4rem;
    gap: 0.4rem;
    z-index: 15;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
}

.touch-controls--visible {
    opacity: 1;
    pointer-events: auto;
}

.touch-arrow {
    background: rgba(10, 11, 30, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(6px);
    transition: all 0.2s;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.touch-arrow:active {
    background: rgba(255, 83, 160, 0.25);
    border-color: var(--color-pink);
    color: var(--color-pink);
    box-shadow: 0 0 20px var(--color-pink-glow);
}

.touch-arrow--up {
    grid-area: up;
}

.touch-arrow--down {
    grid-area: down;
}

.touch-arrow--left {
    grid-area: left;
}

.touch-arrow--right {
    grid-area: right;
}

/* ── Modals ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(3, 3, 14, 0.88);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    opacity: 1;
    visibility: visible;
}

.modal-overlay--hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.modal-card {
    background: var(--color-surface);
    border: 1px solid rgba(0, 240, 255, 0.25);
    border-radius: 12px;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.7), 0 0 50px rgba(255, 83, 160, 0.06);
    max-width: 650px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    padding: 2.5rem 1.5rem 1.5rem;
    animation: modalSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-card--wide {
    max-width: 750px;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.96);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-card__close {
    position: absolute;
    top: 0.8rem;
    right: 1rem;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.6rem;
    cursor: pointer;
    font-family: 'Share Tech Mono', monospace;
    transition: color 0.2s;
    z-index: 5;
    line-height: 1;
    padding: 0.3rem 0.6rem;
}

.modal-card__close:hover {
    color: var(--color-pink);
}

.modal-card__title {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 0.15rem;
    margin: 0 0 1.5rem;
    text-align: center;
    color: var(--color-white);
    text-shadow: 0 0 18px rgba(255, 255, 255, 0.15);
}

.modal-card__title .accent {
    color: var(--color-pink);
    text-shadow: 0 0 20px var(--color-pink-glow);
}

.legend-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
    margin: 1rem 0;
}

@media (max-width: 500px) {
    .legend-grid {
        grid-template-columns: 1fr;
    }
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(19, 23, 58, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    padding: 0.6rem 0.8rem;
}

.legend-swatch {
    width: 2rem;
    height: 2rem;
    border-radius: 4px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.legend-swatch--player {
    background: linear-gradient(135deg, #ff7bb7, #ff53a0);
    box-shadow: 0 0 14px rgba(255, 83, 160, 0.5);
}

.legend-swatch--rock {
    background: linear-gradient(135deg, #2c2d35, #121318);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.legend-swatch--lava {
    background: linear-gradient(135deg, #ff3c00, #990000);
    animation: pulseLava 3s infinite ease-in-out;
}

.legend-swatch--stop {
    background: linear-gradient(135deg, #00f0ff, #0088cc);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
}

.legend-swatch--end {
    background: linear-gradient(135deg, #00ff88, #006633);
    border: 2px dashed rgba(255, 255, 255, 0.5);
}

.legend-text {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.75);
    letter-spacing: 0.02rem;
    line-height: 1.3;
}

.legend-text strong {
    color: var(--color-white);
    font-family: "Orbitron", sans-serif;
    font-size: 0.7rem;
}

.how-to-section h4 {
    font-size: 0.7rem;
    letter-spacing: 0.1rem;
    color: var(--color-cyan);
    margin: 0 0 0.3rem;
    text-transform: uppercase;
}

.how-to-section p {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
    margin: 0 0 0.8rem;
}

.level-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(2.8rem, 1fr));
    gap: 0.5rem;
    max-height: 50vh;
    overflow-y: auto;
    padding: 0.2rem;
}

.level-cell {
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "Orbitron", sans-serif;
    font-weight: 700;
    font-size: 0.85rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    position: relative;
    color: var(--color-white);
}

.level-cell--solved {
    background: rgba(0, 255, 102, 0.18);
    border-color: rgba(0, 255, 102, 0.5);
    color: var(--color-green);
}

.level-cell--solved:hover {
    background: rgba(0, 255, 102, 0.3);
    border-color: var(--color-green);
    transform: translateY(-3px);
}

.level-cell--current {
    background: rgba(0, 240, 255, 0.2);
    border-color: var(--color-cyan);
    color: var(--color-cyan);
    animation: pulseCurrent 2s infinite;
}

.level-cell--current:hover {
    background: rgba(0, 240, 255, 0.35);
    transform: translateY(-3px);
}

@keyframes pulseCurrent {

    0%,
    100% {
        box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
    }

    50% {
        box-shadow: 0 0 24px rgba(0, 240, 255, 0.55);
    }
}

.level-cell--locked {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.25);
    cursor: not-allowed;
    pointer-events: none;
}

.level-cell__check {
    position: absolute;
    top: 2px;
    right: 4px;
    font-size: 0.5rem;
    color: var(--color-green);
}

.level-progress {
    text-align: center;
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.5rem;
}

.level-progress span {
    color: var(--color-cyan);
}

.timer-overlay {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    font-family: 'Share Tech Mono', monospace;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.4);
    background: rgba(10, 11, 30, 0.4);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 10;
}

@media (max-width: 768px),
(pointer: coarse) {
    .game-wrapper {
        transform: none !important;
        padding: 0.5rem;
    }

    .game-wrapper:hover {
        transform: none !important;
    }

    .hud {
        padding: 0.5rem;
        gap: 0.3rem;
    }

    .btn {
        font-size: 0.6rem;
        padding: 0.4rem 0.6rem;
    }

    .touch-controls--visible {
        opacity: 1;
        pointer-events: auto;
    }
}

@keyframes pulseGlow {

    0%,
    100% {
        opacity: 0.3;
    }

    50% {
        opacity: 0.7;
    }
}

@keyframes overlayFadeIn {
    from {
        opacity: 0;
        backdrop-filter: blur(0px);
    }

    to {
        opacity: 1;
        backdrop-filter: blur(8px);
    }
}

@keyframes pulseLava {

    0%,
    100% {
        filter: drop-shadow(0 0 2px rgba(255, 60, 0, 0.4));
    }

    50% {
        filter: drop-shadow(0 0 14px rgba(255, 60, 0, 0.8));
    }
}

@keyframes rotateMatrix {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes shakeLocked {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-4px);
    }

    75% {
        transform: translateX(4px);
    }
}

.shake {
    animation: shakeLocked 0.35s ease;
}