/* yongzoon.com - Dreamy Ethereal Luxury Portfolio */
/* Colors: #1a1a2e (deep base), #4a90d9 (primary blue), #f5f0e8 (warm off-white), #e8b84b (accent gold), #6c757d (muted gray) */
/* Fonts: Space Grotesk (display), Inter (body) */

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

:root {
    --deep-base: #1a1a2e;
    --primary-blue: #4a90d9;
    --warm-white: #f5f0e8;
    --accent-gold: #e8b84b;
    --muted-gray: #6c757d;
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--deep-base);
    color: var(--warm-white);
    font-family: var(--font-body);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Watercolor Canvas */
#watercolor-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.3;
}

/* Glitch Overlay */
#glitch-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(74, 144, 217, 0.03) 2px,
        rgba(74, 144, 217, 0.03) 4px
    );
}

#glitch-overlay.active {
    opacity: 1;
    animation: glitchFlicker 0.15s ease-in-out;
}

@keyframes glitchFlicker {
    0% { opacity: 0; transform: translateX(0); }
    20% { opacity: 1; transform: translateX(-3px); }
    40% { opacity: 0.5; transform: translateX(3px); }
    60% { opacity: 1; transform: translateX(-1px); }
    80% { opacity: 0.7; transform: translateX(2px); }
    100% { opacity: 0; transform: translateX(0); }
}

/* ===== HUD Navigation ===== */
#hud-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 2rem;
    background: linear-gradient(180deg, rgba(26, 26, 46, 0.95) 0%, rgba(26, 26, 46, 0) 100%);
}

.hud-nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.hud-frame-corner {
    position: absolute;
    width: 20px;
    height: 20px;
    border-color: var(--primary-blue);
    border-style: solid;
    opacity: 0.5;
}

.hud-tl { top: 0.5rem; left: 0.5rem; border-width: 1px 0 0 1px; }
.hud-tr { top: 0.5rem; right: 0.5rem; border-width: 1px 1px 0 0; }
.hud-bl { bottom: 0.5rem; left: 0.5rem; border-width: 0 0 1px 1px; }
.hud-br { bottom: 0.5rem; right: 0.5rem; border-width: 0 1px 1px 0; }

.hud-logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    color: var(--warm-white);
}

.hud-links {
    display: flex;
    gap: 2.5rem;
}

.hud-link {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--muted-gray);
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.hud-link::before {
    content: attr(data-index);
    font-size: 0.6rem;
    color: var(--primary-blue);
    position: absolute;
    top: -0.8rem;
    left: 0;
    opacity: 0.6;
}

.hud-link:hover {
    color: var(--accent-gold);
}

.hud-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hud-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-gold);
    animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hud-status-text {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--muted-gray);
}

/* ===== Hero Section ===== */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    overflow: hidden;
}

.hero-content {
    position: relative;
    text-align: center;
    padding: 2rem;
}

.hero-hud-frame {
    position: absolute;
    top: -2rem;
    left: -4rem;
    right: -4rem;
    bottom: -2rem;
    pointer-events: none;
}

.hud-line {
    position: absolute;
    background: var(--primary-blue);
    opacity: 0.2;
}

.hud-line-top {
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
}

.hud-line-bottom {
    bottom: 0;
    left: 10%;
    right: 10%;
    height: 1px;
}

.hud-line-left {
    left: 0;
    top: 10%;
    bottom: 10%;
    width: 1px;
}

.hud-line-right {
    right: 0;
    top: 10%;
    bottom: 10%;
    width: 1px;
}

.hero-overline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.4em;
    color: var(--muted-gray);
}

.hero-overline-dash {
    width: 40px;
    height: 1px;
    background: var(--accent-gold);
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 0.9;
    margin-bottom: 1.5rem;
}

.hero-title-line {
    display: block;
    font-size: clamp(6rem, 15vw, 15rem);
    color: var(--warm-white);
    position: relative;
}

.hero-title-line.hero-title-accent {
    color: var(--accent-gold);
    text-shadow: 0 0 80px rgba(232, 184, 75, 0.3);
}

/* Glitch effect on title */
.hero-title-line::before,
.hero-title-line::after {
    content: attr(data-glitch);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

.hero-title-line::before {
    color: var(--primary-blue);
    z-index: -1;
}

.hero-title-line::after {
    color: var(--accent-gold);
    z-index: -1;
}

.hero-title-line.glitching::before {
    animation: glitchText1 0.3s ease-in-out;
    opacity: 0.8;
}

.hero-title-line.glitching::after {
    animation: glitchText2 0.3s ease-in-out;
    opacity: 0.8;
}

@keyframes glitchText1 {
    0% { transform: translate(0); opacity: 0; }
    20% { transform: translate(-3px, 2px); opacity: 0.8; }
    40% { transform: translate(3px, -1px); opacity: 0.4; }
    60% { transform: translate(-2px, 1px); opacity: 0.8; }
    80% { transform: translate(1px, -2px); opacity: 0.4; }
    100% { transform: translate(0); opacity: 0; }
}

@keyframes glitchText2 {
    0% { transform: translate(0); opacity: 0; }
    20% { transform: translate(2px, -2px); opacity: 0.6; }
    40% { transform: translate(-3px, 1px); opacity: 0.8; }
    60% { transform: translate(2px, -1px); opacity: 0.4; }
    80% { transform: translate(-1px, 2px); opacity: 0.6; }
    100% { transform: translate(0); opacity: 0; }
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--muted-gray);
    letter-spacing: 0.15em;
    margin-bottom: 3rem;
}

.hero-cta {
    margin-bottom: 4rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2.5rem;
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 0.3em;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent-gold);
    transition: left 0.4s ease;
    z-index: -1;
}

.btn-primary:hover {
    color: var(--deep-base);
}

.btn-primary:hover::before {
    left: 0;
}

.btn-arrow {
    transition: transform 0.3s ease;
}

.btn-primary:hover .btn-arrow {
    transform: translateX(5px);
}

.hero-coordinates {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    color: var(--muted-gray);
    opacity: 0.5;
}

.coord-label {
    color: var(--primary-blue);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(180deg, var(--primary-blue), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.3; transform: scaleY(0.6); }
}

.scroll-text {
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.3em;
    color: var(--muted-gray);
}

/* ===== Sections Common ===== */
section {
    position: relative;
    z-index: 1;
    padding: 8rem 4rem;
}

.section-hud-frame {
    position: absolute;
    top: 2rem;
    left: 2rem;
    right: 2rem;
    bottom: 2rem;
    pointer-events: none;
}

.hud-bracket {
    position: absolute;
    width: 30px;
    height: 30px;
}

.hud-bracket-tl {
    top: 0;
    left: 0;
    border-top: 1px solid var(--primary-blue);
    border-left: 1px solid var(--primary-blue);
    opacity: 0.3;
}

.hud-bracket-tr {
    top: 0;
    right: 0;
    border-top: 1px solid var(--primary-blue);
    border-right: 1px solid var(--primary-blue);
    opacity: 0.3;
}

.hud-bracket-bl {
    bottom: 0;
    left: 0;
    border-bottom: 1px solid var(--primary-blue);
    border-left: 1px solid var(--primary-blue);
    opacity: 0.3;
}

.hud-bracket-br {
    bottom: 0;
    right: 0;
    border-bottom: 1px solid var(--primary-blue);
    border-right: 1px solid var(--primary-blue);
    opacity: 0.3;
}

.section-header {
    margin-bottom: 5rem;
}

.section-index {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: var(--primary-blue);
    display: block;
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--warm-white);
    margin-bottom: 1rem;
}

.section-line {
    width: 60px;
    height: 1px;
    background: var(--accent-gold);
}

/* ===== Portfolio Grid ===== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.5s ease;
}

.portfolio-item:hover {
    transform: translateY(-8px);
}

.portfolio-item-featured {
    grid-column: span 2;
    grid-row: span 2;
}

.portfolio-item-wide {
    grid-column: span 2;
}

.portfolio-hud-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 1rem 1.2rem;
    display: flex;
    justify-content: space-between;
    z-index: 3;
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-hud-overlay {
    opacity: 1;
}

.portfolio-hud-id {
    color: var(--primary-blue);
}

.portfolio-hud-status {
    color: var(--accent-gold);
}

.portfolio-image {
    width: 100%;
    height: 0;
    padding-bottom: 75%;
    position: relative;
    overflow: hidden;
}

.portfolio-item-featured .portfolio-image {
    padding-bottom: 100%;
}

.portfolio-glitch-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 3px,
        rgba(74, 144, 217, 0.1) 3px,
        rgba(74, 144, 217, 0.1) 4px
    );
    transition: opacity 0.3s ease;
    z-index: 2;
}

.portfolio-item:hover .portfolio-glitch-layer {
    opacity: 1;
    animation: portfolioGlitch 0.4s ease-in-out;
}

@keyframes portfolioGlitch {
    0% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    50% { transform: translateX(5px); }
    75% { transform: translateX(-2px); }
    100% { transform: translateX(0); }
}

.portfolio-info {
    padding: 1.5rem 0;
}

.portfolio-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--warm-white);
    margin-bottom: 0.3rem;
}

.portfolio-category {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--muted-gray);
}

/* ===== About Section ===== */
#about {
    background: linear-gradient(180deg, transparent 0%, rgba(74, 144, 217, 0.03) 50%, transparent 100%);
}

.about-layout {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 6rem;
    max-width: 1200px;
    margin: 0 auto;
    align-items: start;
}

.about-portrait {
    margin-top: 2rem;
}

.portrait-hud-frame {
    position: relative;
    border: 1px solid rgba(74, 144, 217, 0.2);
    padding: 1rem;
}

.portrait-hud-frame::before {
    content: 'SCAN_COMPLETE';
    position: absolute;
    top: -0.8rem;
    left: 1rem;
    font-family: var(--font-display);
    font-size: 0.55rem;
    letter-spacing: 0.2em;
    color: var(--primary-blue);
    background: var(--deep-base);
    padding: 0 0.5rem;
}

.portrait-svg {
    width: 100%;
    height: auto;
    display: block;
}

.about-bio {
    margin-bottom: 3rem;
}

.about-bio-lead {
    font-family: var(--font-body);
    font-size: 1.4rem;
    font-weight: 300;
    line-height: 1.8;
    color: var(--warm-white);
    margin-bottom: 1.5rem;
}

.about-bio-text {
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--muted-gray);
}

.about-stats {
    display: flex;
    gap: 3rem;
    margin-bottom: 3rem;
    padding: 2rem 0;
    border-top: 1px solid rgba(74, 144, 217, 0.15);
    border-bottom: 1px solid rgba(74, 144, 217, 0.15);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.stat-label {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--muted-gray);
}

.about-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-tag {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--primary-blue);
    border: 1px solid rgba(74, 144, 217, 0.3);
    padding: 0.5rem 1.2rem;
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: rgba(74, 144, 217, 0.1);
    border-color: var(--primary-blue);
    color: var(--warm-white);
}

/* ===== Contact Section ===== */
#contact {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.contact-heading {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.05em;
    color: var(--warm-white);
    margin-bottom: 4rem;
    margin-top: 2rem;
}

.contact-heading-accent {
    color: var(--accent-gold);
    text-shadow: 0 0 60px rgba(232, 184, 75, 0.3);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.contact-link {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 1rem 2rem;
    border: 1px solid rgba(74, 144, 217, 0.2);
    transition: all 0.4s ease;
    min-width: 350px;
}

.contact-link:hover {
    border-color: var(--accent-gold);
    background: rgba(232, 184, 75, 0.05);
    transform: translateX(10px);
}

.contact-link-label {
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.3em;
    color: var(--primary-blue);
    min-width: 60px;
    text-align: left;
}

.contact-link-value {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--warm-white);
    letter-spacing: 0.05em;
}

/* ===== Footer ===== */
#footer {
    position: relative;
    z-index: 1;
    padding: 2rem 4rem;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1.5rem;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    color: var(--warm-white);
}

.footer-copy {
    font-family: var(--font-display);
    font-size: 0.65rem;
    color: var(--muted-gray);
    letter-spacing: 0.1em;
}

.footer-tagline {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-style: italic;
    color: var(--muted-gray);
    letter-spacing: 0.1em;
}

.footer-hud-line {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-blue), transparent);
    opacity: 0.3;
}

/* ===== Scroll Reveal Animations ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-item-featured {
        grid-column: span 2;
        grid-row: span 1;
    }

    .about-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    section {
        padding: 6rem 2rem;
    }
}

@media (max-width: 768px) {
    .hud-links {
        display: none;
    }

    .hero-title-line {
        font-size: clamp(4rem, 18vw, 8rem);
    }

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

    .portfolio-item-featured,
    .portfolio-item-wide {
        grid-column: span 1;
    }

    .about-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .contact-link {
        min-width: auto;
        width: 100%;
    }

    section {
        padding: 4rem 1.5rem;
    }

    #footer {
        padding: 2rem 1.5rem;
    }

    .contact-heading {
        font-size: clamp(2.5rem, 10vw, 5rem);
    }
}