/* ============================================
   gabs.boo - Pixel-Art Haunted Arcade
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
    --tile: clamp(4px, 1vw, 8px);

    /* Color Palette (8 colors) */
    --midnight-void: #0D0B1A;
    --haunted-purple: #2A1B3D;
    --ghost-lavender: #C8C0D8;
    --spectral-gold: #E8D44D;
    --phantom-blue: #7B8CDE;
    --ectoplasm-green: #5AE6A3;
    --crimson-pixel: #D94C6E;
    --crt-white: #F0EDE3;

    /* Twilight palette overrides */
    --twilight-bg: #1A0D1A;
    --twilight-gold: #E8A44D;
    --twilight-blue: #DE7B8C;
}

/* ---------- Global Reset & Base ---------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: auto;
    overflow-x: hidden;
}

body {
    background-color: var(--midnight-void);
    color: var(--ghost-lavender);
    font-family: 'VT323', monospace;
    font-size: calc(var(--tile) * 3);
    line-height: 1.6;
    letter-spacing: 0.05em;
    image-rendering: pixelated;
    -ms-interpolation-mode: nearest-neighbor;
    overflow-x: hidden;
    padding-bottom: calc(var(--tile) * 8);
}

/* CRT Scanline background on body */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 2px,
        rgba(200, 192, 216, 0.04) 2px,
        rgba(200, 192, 216, 0.04) 4px
    );
    pointer-events: none;
    z-index: 1;
}

/* ---------- Twilight Theme ---------- */
body.twilight {
    --midnight-void: #1A0D1A;
    --spectral-gold: #E8A44D;
    --phantom-blue: #DE7B8C;
}

/* ---------- CRT Overlay ---------- */
#crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0;
    transition: opacity 200ms steps(4);
}

#crt-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 2px,
        rgba(200, 192, 216, 0.03) 2px,
        rgba(200, 192, 216, 0.03) 4px
    );
    mix-blend-mode: multiply;
}

#crt-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        ellipse at center,
        transparent 60%,
        rgba(13, 11, 26, 0.4) 100%
    );
}

#crt-overlay.active {
    opacity: 1;
}

/* ---------- Typography ---------- */
h1, h2, h3 {
    font-family: 'Silkscreen', cursive;
    color: var(--spectral-gold);
    text-shadow: calc(var(--tile) * 0.5) calc(var(--tile) * 0.5) 0 var(--haunted-purple);
    image-rendering: pixelated;
}

h1 {
    font-size: calc(var(--tile) * 6);
    font-weight: 700;
}

h2 {
    font-size: calc(var(--tile) * 4);
    font-weight: 700;
}

h3 {
    font-size: calc(var(--tile) * 3);
    font-weight: 400;
}

/* ---------- Room Sections ---------- */
.room {
    position: relative;
    min-height: 100vh;
    width: 100%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.room-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.15;
    z-index: 0;
}

.room-content {
    position: relative;
    z-index: 2;
    width: 90%;
    max-width: calc(var(--tile) * 120);
    padding: calc(var(--tile) * 4);
}

/* ---------- Room Backgrounds (Tile Patterns) ---------- */

/* Library: bookshelf pattern */
#library-bg {
    background-color: var(--haunted-purple);
    background-image:
        repeating-linear-gradient(
            to right,
            var(--haunted-purple) 0px,
            var(--haunted-purple) calc(var(--tile) * 3),
            rgba(232, 164, 77, 0.15) calc(var(--tile) * 3),
            rgba(232, 164, 77, 0.15) calc(var(--tile) * 3.5),
            var(--haunted-purple) calc(var(--tile) * 3.5),
            var(--haunted-purple) calc(var(--tile) * 7)
        ),
        repeating-linear-gradient(
            to bottom,
            transparent 0px,
            transparent calc(var(--tile) * 6),
            rgba(200, 192, 216, 0.1) calc(var(--tile) * 6),
            rgba(200, 192, 216, 0.1) calc(var(--tile) * 6.5),
            transparent calc(var(--tile) * 6.5),
            transparent calc(var(--tile) * 8)
        );
    background-size: calc(var(--tile) * 7) calc(var(--tile) * 8);
}

/* Laboratory: circuit board pattern */
#lab-bg {
    background-color: var(--midnight-void);
    background-image:
        linear-gradient(
            to right,
            rgba(90, 230, 163, 0.08) 1px,
            transparent 1px
        ),
        linear-gradient(
            to bottom,
            rgba(90, 230, 163, 0.08) 1px,
            transparent 1px
        ),
        repeating-linear-gradient(
            45deg,
            transparent 0px,
            transparent calc(var(--tile) * 8),
            rgba(90, 230, 163, 0.04) calc(var(--tile) * 8),
            rgba(90, 230, 163, 0.04) calc(var(--tile) * 8.5),
            transparent calc(var(--tile) * 8.5),
            transparent calc(var(--tile) * 16)
        );
    background-size:
        calc(var(--tile) * 4) calc(var(--tile) * 4),
        calc(var(--tile) * 4) calc(var(--tile) * 4),
        calc(var(--tile) * 16) calc(var(--tile) * 16);
}

/* Garden: grass/flower pattern */
#garden-bg {
    background-color: #0D1A12;
    background-image:
        radial-gradient(
            circle at 25% 25%,
            rgba(90, 230, 163, 0.08) 0px,
            transparent calc(var(--tile) * 2)
        ),
        radial-gradient(
            circle at 75% 75%,
            rgba(217, 76, 110, 0.06) 0px,
            transparent calc(var(--tile) * 2)
        ),
        repeating-linear-gradient(
            to bottom,
            transparent 0px,
            transparent calc(var(--tile) * 3),
            rgba(90, 230, 163, 0.04) calc(var(--tile) * 3),
            rgba(90, 230, 163, 0.04) calc(var(--tile) * 3.5),
            transparent calc(var(--tile) * 3.5),
            transparent calc(var(--tile) * 4)
        );
    background-size:
        calc(var(--tile) * 8) calc(var(--tile) * 8),
        calc(var(--tile) * 8) calc(var(--tile) * 8),
        calc(var(--tile) * 4) calc(var(--tile) * 4);
}

/* Gallery: stone dungeon pattern */
#gallery-bg {
    background-color: var(--haunted-purple);
    background-image:
        repeating-linear-gradient(
            to right,
            transparent 0px,
            transparent calc(var(--tile) * 6),
            rgba(200, 192, 216, 0.06) calc(var(--tile) * 6),
            rgba(200, 192, 216, 0.06) calc(var(--tile) * 6.5),
            transparent calc(var(--tile) * 6.5),
            transparent calc(var(--tile) * 12)
        ),
        repeating-linear-gradient(
            to bottom,
            transparent 0px,
            transparent calc(var(--tile) * 4),
            rgba(200, 192, 216, 0.06) calc(var(--tile) * 4),
            rgba(200, 192, 216, 0.06) calc(var(--tile) * 4.5),
            transparent calc(var(--tile) * 4.5),
            transparent calc(var(--tile) * 8)
        );
    background-size: calc(var(--tile) * 12) calc(var(--tile) * 8);
}

/* ---------- Title Screen ---------- */
#title-screen {
    background-color: var(--midnight-void);
    flex-direction: column;
}

#pixel-border-frame {
    position: relative;
    width: 80%;
    max-width: calc(var(--tile) * 100);
    padding: calc(var(--tile) * 6);
    clip-path: inset(50%);
    /* Pixel border using box-shadow technique */
    border: calc(var(--tile) * 0.5) solid var(--ghost-lavender);
    outline: calc(var(--tile) * 0.5) solid var(--midnight-void);
    box-shadow:
        inset 0 0 0 calc(var(--tile) * 0.5) var(--haunted-purple),
        0 0 0 calc(var(--tile) * 1) var(--haunted-purple),
        0 0 0 calc(var(--tile) * 1.5) var(--ghost-lavender);
    background: var(--midnight-void);
}

#pixel-border-frame.revealed {
    animation: borderReveal 800ms steps(8) forwards;
}

@keyframes borderReveal {
    from { clip-path: inset(50%); }
    to { clip-path: inset(0%); }
}

#title-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: calc(var(--tile) * 4);
}

/* ---------- Ghost Mascot ---------- */
#ghost-mascot {
    width: calc(var(--tile) * 20);
    height: calc(var(--tile) * 20);
    opacity: 0;
    image-rendering: pixelated;
}

#ghost-mascot.visible {
    animation: ghostFadeIn 600ms steps(4) forwards;
}

@keyframes ghostFadeIn {
    0% { opacity: 0; }
    25% { opacity: 0.33; }
    50% { opacity: 0.66; }
    75% { opacity: 1; }
    100% { opacity: 1; }
}

#ghost-mascot .ghost-sprite {
    width: 100%;
    height: 100%;
    animation: ghostFloat 2s steps(4) infinite;
}

@keyframes ghostFloat {
    0% { transform: translateY(0); }
    25% { transform: translateY(calc(var(--tile) * -1)); }
    50% { transform: translateY(0); }
    75% { transform: translateY(calc(var(--tile) * 1)); }
    100% { transform: translateY(0); }
}

.ghost-sprite {
    image-rendering: pixelated;
}

/* ---------- Title Text ---------- */
#title-text {
    font-family: 'Silkscreen', cursive;
    font-size: calc(var(--tile) * 8);
    font-weight: 700;
    color: var(--spectral-gold);
    text-shadow:
        calc(var(--tile) * 0.5) calc(var(--tile) * 0.5) 0 var(--haunted-purple),
        calc(var(--tile) * 1) calc(var(--tile) * 1) 0 rgba(42, 27, 61, 0.5);
    min-height: calc(var(--tile) * 10);
    display: flex;
    align-items: center;
}

/* Blinking pixel cursor */
#title-text::after {
    content: '_';
    animation: cursorBlink 1000ms steps(2) infinite;
    color: var(--spectral-gold);
}

#title-text.typed::after {
    display: none;
}

@keyframes cursorBlink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

/* ---------- Scroll Prompt ---------- */
.blink-text {
    font-family: 'Press Start 2P', cursive;
    font-size: calc(var(--tile) * 2);
    color: var(--phantom-blue);
    animation: promptBlink 1000ms steps(2) infinite;
    opacity: 0;
}

.blink-text.visible {
    opacity: 1;
    animation: promptBlink 1000ms steps(2) infinite;
}

@keyframes promptBlink {
    0% { opacity: 1; }
    53% { opacity: 1; }
    54% { opacity: 0; }
    100% { opacity: 0; }
}

/* ---------- Dialogue Boxes ---------- */
.dialogue-box {
    display: flex;
    gap: calc(var(--tile) * 3);
    padding: calc(var(--tile) * 3);
    margin-bottom: calc(var(--tile) * 4);
    background: var(--midnight-void);
    position: relative;
    /* Pixel border: 3-layer */
    border: calc(var(--tile) * 0.5) solid var(--ghost-lavender);
    outline: calc(var(--tile) * 0.25) solid var(--midnight-void);
    box-shadow:
        inset 0 0 0 calc(var(--tile) * 0.5) var(--haunted-purple),
        0 0 0 calc(var(--tile) * 0.75) var(--haunted-purple),
        0 0 0 calc(var(--tile) * 1.25) var(--ghost-lavender);
    opacity: 0;
    transform: translateX(calc(var(--tile) * 20));
}

.dialogue-box.visible {
    animation: slideInRoom 400ms steps(6) forwards;
}

@keyframes slideInRoom {
    from {
        opacity: 1;
        transform: translateX(calc(var(--tile) * 20));
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.dialogue-portrait {
    width: calc(var(--tile) * 12);
    height: calc(var(--tile) * 12);
    flex-shrink: 0;
    image-rendering: pixelated;
    border: calc(var(--tile) * 0.25) solid var(--ghost-lavender);
    background: var(--haunted-purple);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--tile) * 1);
}

.dialogue-portrait svg {
    width: 100%;
    height: 100%;
}

.dialogue-text-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: calc(var(--tile) * 1.5);
}

.dialogue-speaker {
    font-size: calc(var(--tile) * 3);
    color: var(--spectral-gold);
}

.typewriter-text {
    font-family: 'VT323', monospace;
    font-size: calc(var(--tile) * 2.5);
    line-height: 1.6;
    color: var(--ghost-lavender);
    min-height: calc(var(--tile) * 8);
}

/* ---------- Section Title ---------- */
.section-title {
    font-family: 'Silkscreen', cursive;
    font-size: calc(var(--tile) * 5);
    color: var(--spectral-gold);
    text-align: center;
    margin-bottom: calc(var(--tile) * 4);
    text-shadow: calc(var(--tile) * 0.5) calc(var(--tile) * 0.5) 0 var(--haunted-purple);
}

/* ---------- Ghost Gallery (Masonry) ---------- */
.masonry-grid {
    columns: 3;
    column-gap: calc(var(--tile) * 4);
}

.ghost-card {
    break-inside: avoid;
    margin-bottom: calc(var(--tile) * 4);
    padding: calc(var(--tile) * 2);
    background: var(--haunted-purple);
    border: calc(var(--tile) * 0.5) solid var(--ghost-lavender);
    box-shadow:
        inset 0 0 0 calc(var(--tile) * 0.25) var(--midnight-void),
        0 0 0 calc(var(--tile) * 0.25) var(--midnight-void),
        0 0 0 calc(var(--tile) * 0.75) var(--ghost-lavender);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: calc(var(--tile) * 1.5);
    text-align: center;
    cursor: pointer;
    transform: scale(0);
    opacity: 0;
    transition: none;
}

.ghost-card.visible {
    animation: cardBounce 300ms steps(4) forwards;
}

@keyframes cardBounce {
    0% { transform: scale(0); opacity: 1; }
    60% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}

.ghost-card:hover {
    transform: translateY(calc(var(--tile) * -2)) scale(1);
    box-shadow:
        inset 0 0 0 calc(var(--tile) * 0.25) var(--midnight-void),
        0 0 0 calc(var(--tile) * 0.25) var(--midnight-void),
        0 0 0 calc(var(--tile) * 0.75) var(--ghost-lavender),
        0 calc(var(--tile) * 2) 0 0 rgba(13, 11, 26, 0.8);
    transition: transform 150ms steps(2), box-shadow 150ms steps(2);
}

.card-sprite {
    width: calc(var(--tile) * 10);
    height: calc(var(--tile) * 10);
    image-rendering: pixelated;
}

.card-sprite svg {
    width: 100%;
    height: 100%;
}

.card-label {
    font-family: 'Press Start 2P', cursive;
    font-size: calc(var(--tile) * 1.5);
    color: var(--spectral-gold);
    letter-spacing: 0.1em;
}

.card-desc {
    font-family: 'VT323', monospace;
    font-size: calc(var(--tile) * 2);
    color: var(--ghost-lavender);
    line-height: 1.5;
}

/* ---------- Dither Divider ---------- */
.room + .room::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: calc(var(--tile) * 4);
    z-index: 3;
    background-image:
        repeating-conic-gradient(
            var(--haunted-purple) 0% 25%,
            var(--midnight-void) 25% 50%
        );
    background-size: calc(var(--tile) * 2) calc(var(--tile) * 2);
    opacity: 0.6;
}

/* ---------- Inventory Bar ---------- */
#inventory-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: calc(var(--tile) * 8);
    background: var(--midnight-void);
    border-top: calc(var(--tile) * 0.5) solid var(--ghost-lavender);
    box-shadow:
        inset 0 calc(var(--tile) * 0.5) 0 0 var(--haunted-purple),
        0 calc(var(--tile) * -0.5) 0 0 var(--haunted-purple);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: calc(var(--tile) * 6);
    z-index: 9998;
    padding: 0 calc(var(--tile) * 4);
}

.inventory-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: calc(var(--tile) * 0.5);
    cursor: pointer;
    padding: calc(var(--tile) * 0.5);
}

.inventory-item:hover .inv-icon {
    animation: invBounce 300ms steps(2);
}

@keyframes invBounce {
    0% { transform: translateY(0); }
    50% { transform: translateY(calc(var(--tile) * -1)); }
    100% { transform: translateY(0); }
}

.inv-icon {
    width: calc(var(--tile) * 4);
    height: calc(var(--tile) * 4);
    image-rendering: pixelated;
}

.inv-label {
    font-family: 'Press Start 2P', cursive;
    font-size: calc(var(--tile) * 1);
    color: var(--phantom-blue);
    letter-spacing: 0.1em;
}

/* ---------- Theme Toggle Transition ---------- */
.theme-wipe {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--midnight-void);
    z-index: 9997;
    clip-path: circle(0% at var(--wipe-x, 50%) var(--wipe-y, 100%));
    pointer-events: none;
}

.theme-wipe.active {
    animation: wipeExpand 500ms steps(8) forwards;
}

@keyframes wipeExpand {
    from { clip-path: circle(0% at var(--wipe-x, 50%) var(--wipe-y, 100%)); }
    to { clip-path: circle(150% at var(--wipe-x, 50%) var(--wipe-y, 100%)); }
}

/* ---------- Glitch Effect ---------- */
@keyframes textShiver {
    0% { transform: translate(0, 0); }
    25% { transform: translate(calc(var(--tile) * 0.25), 0); }
    50% { transform: translate(calc(var(--tile) * -0.25), calc(var(--tile) * 0.125)); }
    75% { transform: translate(calc(var(--tile) * 0.125), calc(var(--tile) * -0.125)); }
    100% { transform: translate(0, 0); }
}

.shiver {
    animation: textShiver 200ms steps(4) 1;
}

/* ---------- Responsive: 2 columns on tablet ---------- */
@media (max-width: 900px) {
    .masonry-grid {
        columns: 2;
    }

    h1, #title-text {
        font-size: calc(var(--tile) * 6) !important;
    }

    .dialogue-box {
        flex-direction: column;
        align-items: center;
    }

    .dialogue-portrait {
        width: calc(var(--tile) * 10);
        height: calc(var(--tile) * 10);
    }

    #pixel-border-frame {
        width: 90%;
        padding: calc(var(--tile) * 4);
    }
}

/* ---------- Responsive: 1 column on mobile ---------- */
@media (max-width: 600px) {
    .masonry-grid {
        columns: 1;
    }

    h1, #title-text {
        font-size: calc(var(--tile) * 5) !important;
    }

    .dialogue-portrait {
        width: calc(var(--tile) * 8);
        height: calc(var(--tile) * 8);
    }

    #inventory-bar {
        gap: calc(var(--tile) * 3);
    }

    .inv-label {
        display: none;
    }
}

/* ---------- Scrollbar styling ---------- */
::-webkit-scrollbar {
    width: calc(var(--tile) * 1.5);
}

::-webkit-scrollbar-track {
    background: var(--midnight-void);
}

::-webkit-scrollbar-thumb {
    background: var(--haunted-purple);
    border: calc(var(--tile) * 0.25) solid var(--ghost-lavender);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--ghost-lavender);
}

/* ---------- Selection color ---------- */
::selection {
    background: var(--phantom-blue);
    color: var(--midnight-void);
}