/* =========================================
   JJUGGL.com — Neomorphic Glitch Playground
   ========================================= */

/* --- CSS Variables --- */
:root {
    --substrate: #D6E4F0;
    --shadow-dark: #B0C2D4;
    --shadow-light: #F0F5FA;
    --text-primary: #1B2A4A;
    --glitch-cyan: #00E5FF;
    --glitch-magenta: #FF006E;
    --glitch-green: #39FF14;
    --card-highlight: #A8C0E8;
    --interactive: #FFB385;

    --font-heading: 'Caveat', cursive;
    --font-body: 'Nunito', sans-serif;
    --font-accent: 'Caveat Brush', cursive;

    --shadow-raised: 6px 6px 12px #B0C2D4, -6px -6px 12px #F0F5FA;
    --shadow-pressed: inset 4px 4px 8px #B0C2D4, inset -4px -4px 8px #F0F5FA;
    --shadow-raised-lg: 8px 8px 16px #b8c5d4, -8px -8px 16px #ffffff;
}

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

/* --- Body & Substrate --- */
body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--substrate);
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Scan-line overlay */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 1px,
        rgba(0, 0, 0, 0.03) 1px,
        rgba(0, 0, 0, 0.03) 2px
    );
    pointer-events: none;
    z-index: 1000;
    mix-blend-mode: multiply;
    opacity: 1;
    transition: opacity 200ms;
}

body.glitch-active::after {
    opacity: 1;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 1px,
        rgba(0, 0, 0, 0.15) 1px,
        rgba(0, 0, 0, 0.15) 2px
    );
}

/* --- Hero Section --- */
#hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem;
}

.hero-panel {
    width: 80vw;
    max-width: 1000px;
    height: 70vh;
    max-height: 600px;
    background: var(--substrate);
    box-shadow: var(--shadow-raised-lg);
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(4rem, 8vw, 9rem);
    line-height: 1.1;
    letter-spacing: 0.02em;
    color: var(--text-primary);
    display: flex;
    gap: 0.02em;
    position: relative;
    z-index: 2;
}

.hero-letter {
    display: inline-block;
    position: relative;
    transition: transform 0.1s steps(3), color 0.1s steps(2);
}

.hero-letter.glitching {
    animation: letterGlitch 200ms steps(4) forwards;
}

@keyframes letterGlitch {
    0% { transform: translate(0, 0); color: var(--text-primary); }
    25% { transform: translate(3px, -2px); color: var(--glitch-cyan); }
    50% { transform: translate(-2px, 1px); color: var(--glitch-magenta); }
    75% { transform: translate(1px, -3px); color: var(--glitch-green); }
    100% { transform: translate(0, 0); color: var(--text-primary); }
}

.hero-tagline {
    margin-top: 2rem;
    padding: 1rem 2rem;
    background: var(--substrate);
    box-shadow: var(--shadow-pressed);
    border-radius: 12px;
    max-width: 500px;
    text-align: center;
}

.hero-tagline p {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    opacity: 0.8;
}

/* Hero Navigation Knobs */
.hero-nav {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 50;
}

.nav-knob {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    background: var(--substrate);
    box-shadow: var(--shadow-raised);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 250ms ease-out, transform 250ms ease-out;
    position: relative;
}

.nav-knob:hover {
    box-shadow: var(--shadow-pressed);
    transform: translateY(1px);
}

.nav-knob:active {
    box-shadow: var(--shadow-pressed);
    transform: translateY(2px);
}

.knob-label {
    font-family: var(--font-accent);
    font-size: 0.65rem;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    pointer-events: none;
}

/* --- Circuit Dividers --- */
.circuit-divider {
    width: 100%;
    padding: 1rem 2rem;
    overflow: hidden;
}

.circuit-divider svg {
    width: 100%;
    height: 20px;
}

.circuit-line {
    animation: circuitFlow 4s linear infinite;
}

@keyframes circuitFlow {
    0% { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -56; }
}

.circuit-node {
    animation: nodePulse 3s ease-in-out infinite;
}

@keyframes nodePulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* --- Portfolio Section --- */
#portfolio {
    padding: 3rem 2rem;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* --- Portfolio Tiles --- */
.portfolio-tile {
    aspect-ratio: 4 / 3;
    background: var(--substrate);
    box-shadow: var(--shadow-raised-lg);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    transition: box-shadow 250ms ease-out, transform 250ms ease-out;
    position: relative;
    overflow: hidden;
}

.portfolio-tile::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0;
    z-index: 3;
    transition: opacity 100ms;
}

.portfolio-tile.glitch-burst::before {
    opacity: 1;
    animation: tileGlitch 300ms steps(5) forwards;
}

@keyframes tileGlitch {
    0% {
        box-shadow: 2px 0 var(--glitch-cyan), -2px 0 var(--glitch-magenta);
        clip-path: inset(0 0 0 0);
    }
    20% {
        box-shadow: -3px 0 var(--glitch-cyan), 3px 0 var(--glitch-magenta);
        clip-path: inset(10% 0 80% 0);
    }
    40% {
        box-shadow: 2px 0 var(--glitch-green), -2px 0 var(--glitch-cyan);
        clip-path: inset(40% 0 30% 0);
    }
    60% {
        box-shadow: -4px 0 var(--glitch-magenta), 4px 0 var(--glitch-green);
        clip-path: inset(60% 0 10% 0);
    }
    80% {
        box-shadow: 1px 0 var(--glitch-cyan), -1px 0 var(--glitch-magenta);
        clip-path: inset(20% 0 50% 0);
    }
    100% {
        box-shadow: none;
        clip-path: inset(0 0 0 0);
        opacity: 0;
    }
}

/* RGB channel split pseudo-element */
.portfolio-tile::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0;
    z-index: 2;
    mix-blend-mode: screen;
}

.portfolio-tile.glitch-burst::after {
    animation: rgbSplit 300ms steps(4) forwards;
}

@keyframes rgbSplit {
    0% { opacity: 0; background: transparent; }
    25% {
        opacity: 0.6;
        background: linear-gradient(
            90deg,
            rgba(0, 229, 255, 0.2) 0%,
            transparent 33%,
            rgba(255, 0, 110, 0.2) 66%,
            rgba(57, 255, 20, 0.15) 100%
        );
        transform: translateX(3px);
    }
    50% {
        opacity: 0.4;
        background: linear-gradient(
            90deg,
            rgba(57, 255, 20, 0.15) 0%,
            transparent 50%,
            rgba(0, 229, 255, 0.2) 100%
        );
        transform: translateX(-2px);
    }
    75% {
        opacity: 0.3;
        background: linear-gradient(
            90deg,
            rgba(255, 0, 110, 0.15) 0%,
            transparent 40%,
            rgba(57, 255, 20, 0.1) 100%
        );
        transform: translateX(1px);
    }
    100% { opacity: 0; transform: translateX(0); }
}

.portfolio-tile:hover {
    box-shadow: var(--shadow-pressed);
    transform: translateY(1px);
}

.tile-thumbnail {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.tile-art {
    width: 100%;
    height: 100%;
}

.tile-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.4rem;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.tile-desc {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--text-primary);
    opacity: 0.6;
}

/* --- About Section --- */
#about {
    padding: 4rem 2rem;
    display: flex;
    justify-content: center;
}

.about-panel {
    max-width: 700px;
    width: 100%;
    background: var(--substrate);
    box-shadow: var(--shadow-raised-lg);
    border-radius: 20px;
    padding: 3rem;
}

.section-heading {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 2.5rem;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.about-content p {
    margin-bottom: 1rem;
}

.about-content p:last-child {
    margin-bottom: 0;
}

/* --- Footer --- */
footer {
    padding: 2rem;
}

.footer-bar {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--substrate);
    box-shadow: var(--shadow-raised);
    border-radius: 16px;
    padding: 2rem 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.8rem;
    line-height: 1.1;
    color: var(--text-primary);
}

.footer-email {
    font-family: var(--font-accent);
    font-size: 1rem;
    color: var(--text-primary);
    opacity: 0.7;
}

.footer-socials {
    display: flex;
    gap: 1rem;
}

.social-knob {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--substrate);
    box-shadow: var(--shadow-raised);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 250ms ease-out, transform 250ms ease-out;
    text-decoration: none;
}

.social-knob:hover {
    box-shadow: var(--shadow-pressed);
    transform: translateY(1px);
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(214, 228, 240, 0.85);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 300ms ease-out;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    width: 90vw;
    max-width: 800px;
    max-height: 85vh;
    background: var(--substrate);
    box-shadow: var(--shadow-raised-lg);
    border-radius: 24px;
    padding: 3rem;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9);
    transition: transform 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--substrate);
    box-shadow: var(--shadow-raised);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 250ms ease-out, transform 250ms ease-out;
    z-index: 5;
}

.modal-close:hover {
    box-shadow: var(--shadow-pressed);
    transform: translateY(1px);
}

#modal-body {
    padding-top: 1rem;
}

#modal-body .modal-project-art {
    width: 100%;
    max-height: 300px;
    margin-bottom: 2rem;
    border-radius: 12px;
    background: var(--substrate);
    box-shadow: var(--shadow-pressed);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 2rem;
}

#modal-body .modal-project-art svg {
    width: 100%;
    height: 200px;
}

#modal-body .modal-project-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 2.2rem;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

#modal-body .modal-project-subtitle {
    font-family: var(--font-accent);
    font-size: 1rem;
    color: var(--text-primary);
    opacity: 0.6;
    margin-bottom: 1.5rem;
}

#modal-body .modal-project-desc {
    font-family: var(--font-body);
    line-height: 1.7;
    color: var(--text-primary);
}

#modal-body .modal-project-desc p {
    margin-bottom: 1rem;
}

#modal-body .modal-project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

#modal-body .modal-tag {
    font-family: var(--font-accent);
    font-size: 0.85rem;
    padding: 0.3rem 0.8rem;
    background: var(--substrate);
    box-shadow: var(--shadow-pressed);
    border-radius: 20px;
    color: var(--text-primary);
    opacity: 0.7;
}

/* --- Glitch overlay for tiles (block displacement) --- */
.portfolio-tile .glitch-block {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 4;
}

.portfolio-tile .glitch-block span {
    position: absolute;
    background: var(--substrate);
    box-shadow: 2px 0 var(--glitch-cyan), -2px 0 var(--glitch-magenta);
    opacity: 0;
}

.portfolio-tile.glitch-burst .glitch-block span {
    animation: blockDisplace 300ms steps(3) forwards;
}

@keyframes blockDisplace {
    0% { opacity: 0; transform: translateX(0); }
    20% { opacity: 0.7; transform: translateX(4px); }
    50% { opacity: 0.5; transform: translateX(-3px); }
    80% { opacity: 0.3; transform: translateX(2px); }
    100% { opacity: 0; transform: translateX(0); }
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .hero-panel {
        width: 92vw;
        height: 60vh;
    }

    .hero-title {
        font-size: clamp(3rem, 10vw, 5rem);
    }

    .hero-nav {
        bottom: 1rem;
        right: 1rem;
    }

    .nav-knob {
        width: 46px;
        height: 46px;
    }

    .footer-bar {
        flex-direction: column;
        text-align: center;
        padding: 2rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .about-panel {
        padding: 2rem;
    }

    .modal-content {
        padding: 2rem;
        width: 95vw;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}