/* ==========================================================
   mujun.work — Pop-Art Horizontal Scroll Gallery
   Lichtenstein-inspired lateral experience with honeyed neutrals,
   water-bubble decorations, and floral line-art accents
   ========================================================== */

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

:root {
    --deep-warm-brown: #2A2418;
    --warm-olive: #5A5440;
    --honeyed-grey: #8A8060;
    --honey-cream: #F8F4E8;
    --bubble-border: #B0A880;
    --pop-coral: #E06050;
    --panel-warm: #F0ECD8;
}

html {
    overflow: hidden;
    height: 100%;
}

body {
    font-family: 'Nunito', sans-serif;
    font-weight: 400;
    color: var(--warm-olive);
    background: var(--honey-cream);
    overflow: hidden;
    height: 100%;
    cursor: grab;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.is-grabbing {
    cursor: grabbing;
    user-select: none;
}

/* ---- Horizontal Track ---- */
.horizontal-track {
    display: flex;
    height: 100vh;
    width: max-content;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.horizontal-track::-webkit-scrollbar {
    display: none;
}

/* ---- Panel Base ---- */
.panel {
    flex: 0 0 100vw;
    width: 100vw;
    height: 100vh;
    scroll-snap-align: start;
    position: relative;
    overflow: hidden;
}

.panel-inner {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ---- Halftone Overlay (Ben-Day dots) ---- */
.halftone-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.04;
    background-image: radial-gradient(circle, var(--deep-warm-brown) 1px, transparent 1px);
    background-size: 12px 12px;
    z-index: 1;
}

/* ---- Hero Panel ---- */
.panel-hero {
    background: var(--honey-cream);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.hero-title {
    font-family: 'Bebas Neue', sans-serif;
    font-weight: 400;
    font-size: clamp(4rem, 12vw, 10rem);
    color: var(--deep-warm-brown);
    text-transform: uppercase;
    line-height: 0.95;
    letter-spacing: 0.04em;
    display: flex;
    align-items: baseline;
    gap: 0;
    opacity: 0;
    transform: translateY(30px);
    animation: heroReveal 0.8s ease-out 0.3s forwards;
}

.title-dot {
    color: var(--pop-coral);
    font-size: 1.2em;
    margin: 0 -0.02em;
}

.hero-subtitle {
    font-family: 'Nunito', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.5vw, 1.3rem);
    color: var(--honeyed-grey);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out 0.9s forwards;
}

/* ---- Scroll Indicator ---- */
.scroll-indicator {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out 1.3s forwards;
    transition: opacity 0.5s ease-out;
}

.scroll-text {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--honeyed-grey);
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.scroll-arrow {
    width: 40px;
    height: 20px;
    animation: arrowBounce 1.4s ease-in-out infinite 2s;
}

/* ---- Panel Project Styles ---- */
.panel-project {
    background: var(--honey-cream);
    border-left: 3px solid var(--bubble-border);
}

.panel-project.panel-alt {
    background: var(--panel-warm);
}

/* ---- Pop-Art Comic Border Accents ---- */
.panel-project::before {
    content: '';
    position: absolute;
    top: 3vh;
    left: 3vw;
    right: 3vw;
    bottom: 3vh;
    border: 3px solid var(--deep-warm-brown);
    border-radius: 4px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.06;
}

/* ---- Halftone dot pattern for project panels ---- */
.panel-project::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.03;
    background-image: radial-gradient(circle, var(--deep-warm-brown) 1px, transparent 1px);
    background-size: 16px 16px;
    z-index: 0;
}

/* ---- Skeleton Loading ---- */
.skeleton-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 10vh 12vw;
    gap: 1.5rem;
    z-index: 5;
    background: inherit;
    transition: opacity 0.4s ease-out, visibility 0.4s ease-out;
}

.skeleton-layer.revealed {
    opacity: 0;
    visibility: hidden;
}

.skeleton-block {
    border-radius: 6px;
    background: linear-gradient(90deg, var(--bubble-border) 25%, var(--panel-warm) 50%, var(--bubble-border) 75%);
    background-size: 200% 100%;
    animation: skeletonPulse 1.5s ease-in-out infinite;
}

.skeleton-title {
    width: 45%;
    height: 3.5rem;
}

.skeleton-text {
    width: 70%;
    height: 1.2rem;
}

.skeleton-text.short {
    width: 40%;
}

.skeleton-image {
    width: 80%;
    height: 30vh;
    margin-top: 1rem;
}

/* ---- Panel Content ---- */
.panel-content {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 8vh 10vw;
    opacity: 0;
    transition: opacity 0.5s ease-out;
}

.panel-content.visible {
    opacity: 1;
}

.panel-label {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    font-size: clamp(4rem, 8vw, 7rem);
    color: var(--honeyed-grey);
    opacity: 0.12;
    position: absolute;
    top: 4vh;
    right: 6vw;
    line-height: 1;
    z-index: 0;
    user-select: none;
}

/* ---- Project Card ---- */
.project-card {
    max-width: 600px;
    position: relative;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.project-title {
    font-family: 'Bebas Neue', sans-serif;
    font-weight: 400;
    font-size: clamp(2.5rem, 6vw, 5rem);
    color: var(--deep-warm-brown);
    text-transform: uppercase;
    line-height: 1;
    letter-spacing: 0.02em;
}

.pop-badge {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    padding: 0.3em 0.8em;
    border: 2.5px solid var(--deep-warm-brown);
    color: var(--deep-warm-brown);
    background: var(--honey-cream);
    border-radius: 2px;
    transform: rotate(-3deg);
    white-space: nowrap;
    position: relative;
    top: -0.2em;
}

.pop-badge.accent {
    border-color: var(--pop-coral);
    color: var(--pop-coral);
    background: #fff;
    transform: rotate(2deg);
}

.project-desc {
    font-family: 'Nunito', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.2vw, 1.1rem);
    line-height: 1.8;
    color: var(--warm-olive);
    margin-bottom: 2rem;
    max-width: 520px;
}

/* ---- Tags ---- */
.project-tags {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.tag {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 500;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--honeyed-grey);
    border: 1.5px solid var(--bubble-border);
    padding: 0.35em 0.9em;
    border-radius: 20px;
    transition: color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.tag:hover {
    color: var(--pop-coral);
    border-color: var(--pop-coral);
    transform: translateY(-2px);
}

/* ---- Water Bubbles ---- */
.bubbles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
    z-index: 1;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    border: 2px solid var(--bubble-border);
    background: transparent;
    opacity: 0;
    animation: bubbleFloat linear forwards;
}

/* ---- Floral Accents ---- */
.floral-accent {
    position: absolute;
    pointer-events: none;
    z-index: 1;
    opacity: 0;
    transition: opacity 1s ease-out;
}

.floral-accent.visible {
    opacity: 1;
}

.floral-top-right {
    top: 6vh;
    right: 6vw;
    width: 100px;
    height: 100px;
}

.floral-bottom-left {
    bottom: 6vh;
    left: 6vw;
    width: 90px;
    height: 90px;
}

.floral-top-left {
    top: 8vh;
    left: 5vw;
    width: 80px;
    height: 80px;
}

.floral-bottom-right {
    bottom: 8vh;
    right: 5vw;
    width: 100px;
    height: 100px;
}

.floral-center-right {
    top: 50%;
    right: 5vw;
    transform: translateY(-50%);
    width: 70px;
    height: 140px;
}

/* ---- Closing Panel ---- */
.panel-closing {
    background: var(--panel-warm);
    border-left: 3px solid var(--bubble-border);
}

.closing-content {
    position: relative;
    z-index: 2;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.closing-title {
    font-family: 'Bebas Neue', sans-serif;
    font-weight: 400;
    font-size: clamp(3rem, 8vw, 7rem);
    color: var(--deep-warm-brown);
    text-transform: uppercase;
    line-height: 0.95;
    letter-spacing: 0.03em;
}

.closing-text {
    font-family: 'Nunito', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.2vw, 1.1rem);
    line-height: 1.8;
    color: var(--warm-olive);
    max-width: 400px;
}

.closing-decoration {
    margin-top: 1rem;
    width: 200px;
}

.closing-decoration svg {
    width: 100%;
    height: auto;
}

/* ---- Panel Navigation Dots ---- */
.panel-nav {
    position: fixed;
    bottom: 2.5vh;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 100;
    padding: 0.5rem 1rem;
    background: rgba(248, 244, 232, 0.85);
    border-radius: 20px;
    border: 1.5px solid var(--bubble-border);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.nav-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid var(--bubble-border);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.nav-dot:hover {
    border-color: var(--pop-coral);
}

.nav-dot.active {
    background: var(--pop-coral);
    border-color: var(--pop-coral);
    transform: scale(1.2);
}

/* ---- Animations ---- */
@keyframes heroReveal {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes arrowBounce {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(8px);
    }
}

@keyframes skeletonPulse {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

@keyframes bubbleFloat {
    0% {
        opacity: 0;
        transform: translateY(0) scale(0.7);
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        opacity: 0;
        transform: translateY(-110vh) scale(1);
    }
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .panel {
        flex: 0 0 100vw;
    }

    .panel-content {
        padding: 6vh 8vw;
    }

    .panel-label {
        font-size: clamp(3rem, 15vw, 5rem);
        top: 3vh;
        right: 4vw;
    }

    .project-card {
        max-width: 100%;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .floral-accent {
        transform: scale(0.7);
    }

    .floral-center-right {
        transform: translateY(-50%) scale(0.7);
    }

    .panel-nav {
        bottom: 1.5vh;
        gap: 7px;
    }

    .nav-dot {
        width: 8px;
        height: 8px;
    }

    .skeleton-layer {
        padding: 8vh 8vw;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: clamp(3rem, 16vw, 5rem);
    }

    .project-title {
        font-size: clamp(2rem, 10vw, 3rem);
    }

    .panel-content {
        padding: 5vh 6vw;
    }

    .pop-badge {
        font-size: 0.6rem;
    }
}