/* ============================================
   munju.club - Art Deco + Circuit Board Fusion
   ============================================ */

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

:root {
    --oxidized-black: #1A1714;
    --patina-green: #4A6D5C;
    --faded-gold: #B8A47E;
    --aged-ivory: #E8DFD0;
    --rust-copper: #8B5E3C;
    --soot-gray: #3D3833;
    --signal-red: #A0413A;
    --dust-rose: #C4A4A0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', sans-serif;
    font-weight: 400;
    font-size: clamp(0.95rem, 1.3vw, 1.15rem);
    color: var(--aged-ivory);
    background-color: var(--oxidized-black);
    overflow-x: hidden;
    line-height: 1.7;
}

/* --- Full-Surface Noise Texture --- */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: var(--noise-opacity, 0.05);
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
}

/* --- Typography --- */
h1, h2, h3 {
    font-family: 'Libre Baskerville', serif;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* ============================================
   ENTRANCE SECTION (0-100vh)
   ============================================ */
.entrance {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* --- Sunburst --- */
.sunburst {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    transform: translate(-50%, -50%);
}

.sunburst-ray {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1px;
    height: 120%;
    transform-origin: center top;
    transform: translate(-50%, -50%) rotate(var(--angle));
    background: linear-gradient(
        to bottom,
        transparent 0%,
        var(--rust-copper) 20%,
        var(--faded-gold) 50%,
        var(--rust-copper) 80%,
        transparent 100%
    );
    opacity: 0.15;
}

.sunburst-ray::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--faded-gold) 30%, var(--rust-copper) 70%, transparent 100%);
    opacity: 0.6;
}

.sunburst-ray::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--faded-gold) 30%, var(--rust-copper) 70%, transparent 100%);
    opacity: 0.6;
}

/* --- Solder Points (Entrance) --- */
.solder-points-entrance {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.solder-dot {
    position: absolute;
    top: var(--y);
    left: var(--x);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--faded-gold) 20%, var(--rust-copper) 60%, transparent 100%);
    animation: solderPulse 3s ease-in-out infinite;
    animation-delay: calc(var(--x, 0) * 10ms);
}

@keyframes solderPulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.3); }
}

/* --- Entrance Content --- */
.entrance-content {
    position: relative;
    z-index: 10;
    text-align: center;
}

.logotype {
    font-size: clamp(2.5rem, 8vw, 6rem);
    color: var(--aged-ivory);
    margin-bottom: 1.5rem;
    text-shadow: 0 0 40px rgba(184, 164, 126, 0.15);
}

.logotype-dot {
    color: var(--faded-gold);
}

.tagline {
    font-family: 'Libre Baskerville', serif;
    font-style: italic;
    font-weight: 400;
    font-size: clamp(1rem, 2vw, 1.4rem);
    color: var(--dust-rose);
    letter-spacing: 0.05em;
}

/* --- Scroll Indicator --- */
.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.scroll-trace {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--rust-copper), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; height: 50px; }
    50% { opacity: 0.8; height: 70px; }
}

/* ============================================
   GALLERY SECTION (100-250vh)
   ============================================ */
.gallery {
    position: relative;
    min-height: 200vh;
    padding: 8rem 5% 8rem 5%;
}

/* --- Circuit Traces (SVG) --- */
.circuit-traces {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.trace-path {
    fill: none;
    stroke: var(--rust-copper);
    stroke-width: 1;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    transition: stroke-dashoffset 0.1s linear;
}

.via-hole {
    fill: var(--oxidized-black);
    stroke: var(--rust-copper);
    stroke-width: 2;
    animation: viaPulse 4s ease-in-out infinite;
}

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

.signal-dot {
    fill: var(--faded-gold);
    opacity: 0.8;
}

/* --- Panels --- */
.panel {
    position: relative;
    z-index: 5;
    width: clamp(280px, 38%, 480px);
    padding: 2.5rem 2rem;
    background-color: var(--soot-gray);
    margin-bottom: 6rem;
    clip-path: polygon(
        8px 0%,
        calc(100% - 8px) 0%,
        100% 8px,
        100% calc(100% - 8px),
        calc(100% - 8px) 100%,
        8px 100%,
        0% calc(100% - 8px),
        0% 8px
    );
    will-change: transform;
    transition: transform 400ms cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 400ms ease;
}

.panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.04;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
    pointer-events: none;
    transition: opacity 400ms ease;
}

.panel:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.panel:hover::before {
    opacity: 0.08;
}

.panel-left {
    margin-left: 8%;
    margin-right: auto;
}

.panel-right {
    margin-left: auto;
    margin-right: 8%;
}

/* --- Panel Border (Deco double-line) --- */
.panel-border {
    position: absolute;
    top: 6px;
    left: 6px;
    right: 6px;
    bottom: 6px;
    border: 1px solid var(--rust-copper);
    pointer-events: none;
    transition: border-color 400ms ease;
}

.panel:hover .panel-border {
    border-color: var(--faded-gold);
}

.panel-border::after {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    right: 4px;
    bottom: 4px;
    border: 1px solid var(--rust-copper);
    opacity: 0.4;
    transition: border-color 400ms ease;
}

.panel:hover .panel-border::after {
    border-color: var(--faded-gold);
}

/* --- Chevron Corners --- */
.chevron-corner {
    position: absolute;
    width: 16px;
    height: 16px;
}

.chevron-corner::before,
.chevron-corner::after {
    content: '';
    position: absolute;
    background-color: var(--rust-copper);
    transition: background-color 400ms ease;
}

.panel:hover .chevron-corner::before,
.panel:hover .chevron-corner::after {
    background-color: var(--faded-gold);
}

.chevron-tl { top: -2px; left: -2px; }
.chevron-tl::before { top: 0; left: 0; width: 16px; height: 1px; }
.chevron-tl::after { top: 0; left: 0; width: 1px; height: 16px; }

.chevron-tr { top: -2px; right: -2px; }
.chevron-tr::before { top: 0; right: 0; width: 16px; height: 1px; }
.chevron-tr::after { top: 0; right: 0; width: 1px; height: 16px; }

.chevron-bl { bottom: -2px; left: -2px; }
.chevron-bl::before { bottom: 0; left: 0; width: 16px; height: 1px; }
.chevron-bl::after { bottom: 0; left: 0; width: 1px; height: 16px; }

.chevron-br { bottom: -2px; right: -2px; }
.chevron-br::before { bottom: 0; right: 0; width: 16px; height: 1px; }
.chevron-br::after { bottom: 0; right: 0; width: 1px; height: 16px; }

/* --- Panel Content --- */
.panel-heading {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    color: var(--faded-gold);
    margin-bottom: 1rem;
}

.panel-text {
    color: var(--aged-ivory);
    line-height: 1.8;
}

/* --- IC Tabs --- */
.ic-tabs {
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
}

.ic-tab {
    width: 10px;
    height: 16px;
    background-color: var(--rust-copper);
    border-radius: 0 0 2px 2px;
    opacity: 0.6;
}

/* --- Panel Animation (scroll reveal) --- */
.panel-animate {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 600ms ease, transform 600ms cubic-bezier(0.34, 1.56, 0.64, 1);
    transition-delay: var(--delay, 0ms);
}

.panel-animate.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* ============================================
   VAULT SECTION (250-350vh)
   ============================================ */
.vault {
    position: relative;
    min-height: 120vh;
    padding: 6rem 5%;
}

.vault-cluster {
    position: relative;
    z-index: 5;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.vault-panel {
    position: relative;
    padding: 2rem 1.8rem;
    background-color: var(--soot-gray);
    clip-path: polygon(
        8px 0%,
        calc(100% - 8px) 0%,
        100% 8px,
        100% calc(100% - 8px),
        calc(100% - 8px) 100%,
        8px 100%,
        0% calc(100% - 8px),
        0% 8px
    );
    will-change: transform;
    transition: transform 400ms cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 400ms ease;
}

.vault-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.04;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
    pointer-events: none;
    transition: opacity 400ms ease;
}

.vault-panel:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.vault-panel:hover::before {
    opacity: 0.08;
}

.vault-panel:hover .panel-border {
    border-color: var(--faded-gold);
}

.vault-panel:hover .panel-border::after {
    border-color: var(--faded-gold);
}

.vault-panel:hover .chevron-corner::before,
.vault-panel:hover .chevron-corner::after {
    background-color: var(--faded-gold);
}

/* Staggered layout for scattered desk effect */
.vault-panel-1 {
    grid-column: 1;
    grid-row: 1;
    transform: rotate(-1deg);
    z-index: 3;
}

.vault-panel-2 {
    grid-column: 2;
    grid-row: 1;
    transform: rotate(0.5deg);
    margin-top: 2rem;
    z-index: 4;
}

.vault-panel-3 {
    grid-column: 1 / span 2;
    grid-row: 2;
    max-width: 500px;
    margin: 0 auto;
    transform: rotate(0.3deg);
    z-index: 5;
}

.vault-panel-4 {
    grid-column: 1;
    grid-row: 3;
    transform: rotate(0.8deg);
    margin-top: -1rem;
    z-index: 2;
}

.vault-panel-5 {
    grid-column: 2;
    grid-row: 3;
    transform: rotate(-0.5deg);
    z-index: 3;
}

/* Keep initial rotation on visible state */
.vault-panel.panel-animate.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.vault-panel-1.panel-animate.visible { transform: translateY(0) scale(1) rotate(-1deg); }
.vault-panel-2.panel-animate.visible { transform: translateY(0) scale(1) rotate(0.5deg); }
.vault-panel-3.panel-animate.visible { transform: translateY(0) scale(1) rotate(0.3deg); }
.vault-panel-4.panel-animate.visible { transform: translateY(0) scale(1) rotate(0.8deg); }
.vault-panel-5.panel-animate.visible { transform: translateY(0) scale(1) rotate(-0.5deg); }

.vault-panel-1:hover { transform: scale(1.03) rotate(-1deg); }
.vault-panel-2:hover { transform: scale(1.03) rotate(0.5deg); }
.vault-panel-3:hover { transform: scale(1.03) rotate(0.3deg); }
.vault-panel-4:hover { transform: scale(1.03) rotate(0.8deg); }
.vault-panel-5:hover { transform: scale(1.03) rotate(-0.5deg); }

.vault-panel .panel-heading {
    font-size: clamp(1rem, 2vw, 1.4rem);
    color: var(--patina-green);
    margin-bottom: 0.8rem;
}

/* ============================================
   EXIT SECTION (350-400vh)
   ============================================ */
.exit {
    position: relative;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8rem 5%;
}

.exit-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 3rem 4rem;
    max-width: 600px;
}

.exit-border {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 1px solid var(--rust-copper);
    pointer-events: none;
}

.exit-border::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 6px;
    right: 6px;
    bottom: 6px;
    border: 1px solid var(--rust-copper);
    opacity: 0.4;
}

.exit-statement {
    font-family: 'Libre Baskerville', serif;
    font-style: italic;
    font-weight: 400;
    font-size: clamp(1.3rem, 3vw, 2rem);
    color: var(--aged-ivory);
    line-height: 1.8;
    letter-spacing: 0.05em;
}

/* --- Footer Ornament --- */
.footer {
    position: relative;
    z-index: 10;
    margin-top: 6rem;
    width: 100%;
    display: flex;
    justify-content: center;
    padding-bottom: 3rem;
}

.footer-ornament {
    display: flex;
    align-items: center;
    gap: 0;
}

.footer-chevron {
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 12px solid var(--rust-copper);
    opacity: 0.6;
}

.footer-chevron-flip {
    border-left: none;
    border-right: 12px solid var(--rust-copper);
}

.footer-line {
    width: 80px;
    height: 1px;
    background: linear-gradient(to right, var(--rust-copper), var(--faded-gold), var(--rust-copper));
    opacity: 0.5;
}

.footer-diamond {
    width: 8px;
    height: 8px;
    background-color: var(--faded-gold);
    transform: rotate(45deg);
    opacity: 0.6;
    margin: 0 8px;
}

/* ============================================
   SOLDER POINT HOVER EFFECT (global)
   ============================================ */
.solder-dot {
    cursor: default;
    transition: transform 300ms ease, box-shadow 300ms ease;
}

.solder-dot:hover {
    transform: scale(1.5);
    box-shadow: 0 0 12px rgba(184, 164, 126, 0.4);
}

/* ============================================
   TEXT LINK STYLES
   ============================================ */
a {
    color: var(--aged-ivory);
    text-decoration: none;
    position: relative;
    transition: color 300ms ease, transform 300ms ease;
    display: inline-block;
    will-change: transform;
}

a:hover {
    color: var(--faded-gold);
    transform: scale(1.02);
}

a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--faded-gold);
    transition: width 300ms ease;
}

a:hover::after {
    width: 100%;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .panel {
        width: clamp(260px, 85%, 460px);
    }

    .panel-left,
    .panel-right {
        margin-left: auto;
        margin-right: auto;
    }

    .vault-cluster {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .vault-panel-1,
    .vault-panel-2,
    .vault-panel-3,
    .vault-panel-4,
    .vault-panel-5 {
        grid-column: 1;
        grid-row: auto;
        margin-top: 0;
        transform: none;
    }

    .vault-panel-1.panel-animate.visible,
    .vault-panel-2.panel-animate.visible,
    .vault-panel-3.panel-animate.visible,
    .vault-panel-4.panel-animate.visible,
    .vault-panel-5.panel-animate.visible {
        transform: translateY(0) scale(1);
    }

    .vault-panel-1:hover,
    .vault-panel-2:hover,
    .vault-panel-3:hover,
    .vault-panel-4:hover,
    .vault-panel-5:hover {
        transform: scale(1.03);
    }

    .vault-panel-3 {
        max-width: none;
    }

    .exit-content {
        padding: 2rem;
    }

    .gallery {
        padding: 4rem 5%;
    }

    .gallery-traces,
    .vault-traces,
    .exit-traces {
        display: none;
    }
}