/* ==========================================
   MasqueradeProtocol.com — Styles
   Chrome-metallic generative masquerade
   ========================================== */

:root {
    --void: #0A0A0A;
    --chrome-shadow: #1A1A1A;
    --chrome-light: #C0C0C0;
    --chrome-mid: #808080;
    --chrome-dark: #3D3D3D;
    --rebellion: #FF003C;
    --disruption: #00FFE0;
    --text-primary: #E8E8E8;
    --text-muted: #A8A8A8;
    --particle-glow: #FFFFFF;
}

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

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

body {
    background: var(--void);
    color: var(--text-primary);
    font-family: 'Kalam', cursive;
    font-weight: 400;
    overflow-x: hidden;
    cursor: default;
}

/* ---- Typography ---- */
.heading-primary {
    font-family: 'Caveat', cursive;
    font-weight: 700;
    font-size: clamp(3rem, 8vw, 7rem);
    letter-spacing: -0.01em;
    line-height: 1.1;
    color: var(--text-primary);
    text-shadow: 0 0 20px rgba(192, 192, 192, 0.3);
}

.body-text {
    font-family: 'Kalam', cursive;
    font-weight: 400;
    font-size: clamp(1rem, 1.8vw, 1.25rem);
    line-height: 1.7;
    max-width: 38ch;
    color: var(--text-muted);
}

.accent-text {
    font-family: 'Permanent Marker', cursive;
    font-weight: 400;
    font-size: clamp(1.2rem, 3vw, 2rem);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--chrome-light);
}

/* ---- Particle Canvas ---- */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
}

/* ---- Chrome Thread ---- */
#chrome-thread {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    pointer-events: none;
}

.thread-branch {
    transition: opacity 1s ease;
}

/* ---- Scroll Indicator ---- */
#scroll-indicator {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    opacity: 0;
    animation: pulse-indicator 2s ease-in-out infinite;
    transition: opacity 0.8s ease;
}

#scroll-indicator.visible {
    opacity: 1;
}

#scroll-indicator.hidden {
    opacity: 0;
}

@keyframes pulse-indicator {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.6; }
    50% { transform: translateX(-50%) translateY(8px); opacity: 1; }
}

/* ---- Scroll Reveal ---- */
[data-scroll-reveal] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-scroll-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ---- Mask Shard Inline SVG ---- */
.mask-shard {
    display: inline-block;
    margin-right: 12px;
    vertical-align: middle;
    opacity: 0.6;
    filter: drop-shadow(0 0 6px rgba(192, 192, 192, 0.3));
}

/* ================================================================
   SECTION 1: THE INVITATION (0–100vh)
   ================================================================ */
.section-invitation {
    position: relative;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 2;
    overflow: hidden;
}

/* Chrome Mask — Serene */
.chrome-mask {
    position: relative;
    width: 180px;
    height: 240px;
    z-index: 3;
}

.chrome-mask-bg {
    opacity: 0.35;
    filter: blur(1px);
}

.mask-face {
    position: relative;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        160deg,
        #E8E8E8 0%,
        #C0C0C0 20%,
        #808080 45%,
        #3D3D3D 70%,
        #1A1A1A 100%
    );
    border-radius: 50% 50% 42% 42% / 60% 60% 40% 40%;
    box-shadow:
        inset 0 0 40px rgba(255, 255, 255, 0.08),
        inset 0 -20px 40px rgba(0, 0, 0, 0.5),
        0 0 60px rgba(192, 192, 192, 0.15),
        0 0 120px rgba(192, 192, 192, 0.05);
    animation: mask-rotate 45s linear infinite;
    overflow: hidden;
}

.mask-face::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        110deg,
        transparent 30%,
        rgba(255, 255, 255, 0.12) 45%,
        transparent 55%
    );
    border-radius: inherit;
}

@keyframes mask-rotate {
    0% { transform: rotateY(0deg) rotateZ(0deg); }
    25% { transform: rotateY(5deg) rotateZ(1deg); }
    50% { transform: rotateY(0deg) rotateZ(0deg); }
    75% { transform: rotateY(-5deg) rotateZ(-1deg); }
    100% { transform: rotateY(0deg) rotateZ(0deg); }
}

.mask-forehead {
    position: absolute;
    top: 5%;
    left: 15%;
    right: 15%;
    height: 20%;
    background: linear-gradient(180deg, rgba(232, 232, 232, 0.15) 0%, transparent 100%);
    border-radius: 50% 50% 0 0;
}

.mask-eye {
    position: absolute;
    top: 35%;
    width: 22%;
    height: 14%;
}

.mask-eye-left { left: 18%; }
.mask-eye-right { right: 18%; }

.mask-eye-hole {
    width: 100%;
    height: 100%;
    background: var(--void);
    border-radius: 50% 50% 45% 45% / 60% 60% 40% 40%;
    box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.8), 0 0 12px rgba(0, 0, 0, 0.4);
}

.mask-eye-squint {
    border-radius: 50%;
    height: 60%;
    margin-top: 4%;
}

.mask-eye-wide {
    height: 120%;
    border-radius: 50%;
}

.mask-nose {
    position: absolute;
    top: 48%;
    left: 50%;
    transform: translateX(-50%);
    width: 12%;
    height: 18%;
    background: linear-gradient(180deg, rgba(192, 192, 192, 0.1) 0%, rgba(61, 61, 61, 0.2) 100%);
    border-radius: 30% 30% 50% 50%;
}

.mask-mouth-serene {
    position: absolute;
    top: 70%;
    left: 50%;
    transform: translateX(-50%);
    width: 30%;
    height: 3%;
    background: var(--void);
    border-radius: 0 0 50% 50%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

.mask-mouth-laughing {
    position: absolute;
    top: 68%;
    left: 50%;
    transform: translateX(-50%);
    width: 35%;
    height: 10%;
    background: var(--void);
    border-radius: 0 0 50% 50%;
    box-shadow: inset 0 -3px 8px rgba(0, 0, 0, 0.6);
}

.mask-mouth-screaming {
    position: absolute;
    top: 65%;
    left: 50%;
    transform: translateX(-50%);
    width: 28%;
    height: 16%;
    background: var(--void);
    border-radius: 50%;
    box-shadow: inset 0 0 12px rgba(0, 0, 0, 0.8);
}

.mask-cheek {
    position: absolute;
    top: 55%;
    width: 18%;
    height: 20%;
    background: linear-gradient(180deg, transparent, rgba(61, 61, 61, 0.15));
    border-radius: 50%;
}

.mask-cheek-left { left: 8%; }
.mask-cheek-right { right: 8%; }

.mask-crack {
    position: absolute;
    background: linear-gradient(90deg, var(--void), rgba(10, 10, 10, 0.5));
    z-index: 2;
}

.mask-crack-1 {
    top: 20%;
    left: 55%;
    width: 2px;
    height: 45%;
    transform: rotate(15deg);
}

.mask-crack-2 {
    top: 40%;
    left: 30%;
    width: 2px;
    height: 30%;
    transform: rotate(-20deg);
}

/* Invitation mask entrance */
#mask-serene {
    opacity: 0;
    transform: scale(0.5);
    transition: opacity 2s cubic-bezier(0.16, 1, 0.3, 1), transform 2s cubic-bezier(0.16, 1, 0.3, 1);
}

#mask-serene.materialized {
    opacity: 1;
    transform: scale(1);
}

.invitation-heading {
    position: absolute;
    bottom: 20vh;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1.5s cubic-bezier(0.16, 1, 0.3, 1), transform 1.5s cubic-bezier(0.16, 1, 0.3, 1);
    padding: 0 20px;
}

.invitation-heading.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================================================================
   SECTION 2: THE PROTOCOL (100vh–350vh)
   ================================================================ */
.section-protocol {
    position: relative;
    min-height: 250vh;
    z-index: 2;
    padding: 10vh 0;
}

.protocol-fragment {
    position: relative;
    padding: 8vh 0;
}

.fragment-1 {
    margin-left: 15vw;
    margin-top: 15vh;
}

.fragment-2 {
    margin-left: 55vw;
    margin-top: 20vh;
}

.fragment-3 {
    margin-left: 12vw;
    margin-top: 25vh;
}

.fragment-4 {
    margin-left: 50vw;
    margin-top: 30vh;
}

.fragment-5 {
    margin-left: 25vw;
    margin-top: 20vh;
}

#mask-laughing {
    position: relative;
    width: 140px;
    height: 190px;
    margin-left: 70vw;
    margin-top: 10vh;
}

/* ================================================================
   SECTION 3: THE DISRUPTION (350vh–500vh)
   ================================================================ */
.section-disruption {
    position: relative;
    min-height: 150vh;
    z-index: 2;
    overflow: hidden;
}

.disruption-content {
    position: relative;
    z-index: 2;
}

.disruption-fragment {
    position: relative;
    padding: 6vh 0;
}

.frag-d1 {
    margin-left: 20vw;
    margin-top: 10vh;
}

#mask-screaming {
    width: 200px;
    height: 270px;
    margin-left: 55vw;
    margin-top: 8vh;
}

.mask-face-screaming {
    animation: mask-rotate 30s linear infinite;
}

.frag-d2 {
    margin-left: 10vw;
    margin-top: 12vh;
}

.frag-d3 {
    margin-left: 60vw;
    margin-top: 15vh;
}

.frag-d4 {
    margin-left: 18vw;
    margin-top: 10vh;
    margin-bottom: 10vh;
}

/* Noise Overlay */
.noise-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0;
    transition: opacity 0.5s ease;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.15'/%3E%3C/svg%3E");
    mix-blend-mode: overlay;
}

.noise-overlay.active {
    opacity: 1;
}

/* Shake / Glitch Animation */
@keyframes protocol-glitch {
    0%, 100% { transform: translate(0, 0) skewX(0deg); }
    10% { transform: translate(-4px, 0) skewX(-0.5deg); }
    20% { transform: translate(6px, 0) skewX(0.8deg); }
    30% { transform: translate(-2px, 0) skewX(-0.3deg); }
    40% { transform: translate(4px, 0) skewX(0.5deg); }
    50% { transform: translate(-6px, 0) skewX(-0.8deg); }
    60% { transform: translate(2px, 0) skewX(0.3deg); }
    70% { transform: translate(-3px, 0) skewX(-0.4deg); }
    80% { transform: translate(5px, 0) skewX(0.6deg); }
    90% { transform: translate(-1px, 0) skewX(-0.2deg); }
}

@keyframes protocol-glitch-intense {
    0%, 100% { transform: translate(0, 0) skewX(0deg); }
    10% { transform: translate(-8px, 0) skewX(-1.2deg); }
    20% { transform: translate(10px, 0) skewX(1.5deg); }
    30% { transform: translate(-5px, 0) skewX(-0.8deg); }
    40% { transform: translate(8px, 0) skewX(1deg); }
    50% { transform: translate(-10px, 0) skewX(-1.5deg); }
    60% { transform: translate(4px, 0) skewX(0.6deg); }
    70% { transform: translate(-7px, 0) skewX(-1deg); }
    80% { transform: translate(9px, 0) skewX(1.2deg); }
    90% { transform: translate(-3px, 0) skewX(-0.5deg); }
}

.disrupted {
    animation: protocol-glitch 0.4s ease-in-out;
}

.disrupted-intense {
    animation: protocol-glitch-intense 0.5s ease-in-out;
    box-shadow: 0 0 30px rgba(255, 0, 60, 0.4);
}

.disrupted .accent-text,
.disrupted-intense .accent-text {
    color: var(--rebellion);
    text-shadow: 0 0 20px rgba(255, 0, 60, 0.6);
}

/* Magenta flash on glitch */
.magenta-flash {
    box-shadow: 0 0 40px rgba(255, 0, 60, 0.3);
}

/* ================================================================
   SECTION 4: THE PERSISTENCE (500vh–650vh)
   ================================================================ */
.section-persistence {
    position: relative;
    min-height: 150vh;
    z-index: 2;
    padding-bottom: 15vh;
}

/* Three parallel chrome threads */
.persistence-thread-left,
.persistence-thread-mid,
.persistence-thread-right {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, transparent 0%, var(--chrome-light) 20%, var(--chrome-dark) 50%, var(--chrome-light) 80%, transparent 100%);
    opacity: 0;
    transition: opacity 2s ease;
}

.persistence-thread-left { left: 6vw; }
.persistence-thread-mid { left: 8vw; }
.persistence-thread-right { left: 10vw; }

.section-persistence.active .persistence-thread-left,
.section-persistence.active .persistence-thread-mid,
.section-persistence.active .persistence-thread-right {
    opacity: 0.4;
}

.persistence-fragment {
    position: relative;
    padding: 8vh 0;
}

.pers-1 {
    margin-left: 20vw;
    margin-top: 12vh;
}

.pers-2 {
    margin-left: 45vw;
    margin-top: 18vh;
}

.pers-3 {
    margin-left: 15vw;
    margin-top: 22vh;
}

.pers-4 {
    margin-left: 55vw;
    margin-top: 18vh;
}

.pers-5 {
    margin-left: 25vw;
    margin-top: 25vh;
    margin-bottom: 10vh;
}

.final-line {
    font-size: clamp(2.5rem, 7vw, 6rem);
    color: var(--text-primary);
    text-shadow: 0 0 30px rgba(192, 192, 192, 0.4);
}

/* Displaced text in persistence — slightly offset */
.section-persistence .body-text {
    transform: translateX(8px);
}

.section-persistence .heading-primary {
    transform: translateX(-5px);
}

/* ================================================================
   RESPONSIVE — Mobile
   ================================================================ */
@media (max-width: 768px) {
    .fragment-1, .fragment-3, .frag-d1, .frag-d2, .frag-d4,
    .pers-1, .pers-3, .pers-5 {
        margin-left: 8vw;
        margin-right: 8vw;
    }

    .fragment-2, .fragment-4, .fragment-5,
    .frag-d3, .pers-2, .pers-4 {
        margin-left: 12vw;
        margin-right: 8vw;
    }

    #mask-laughing {
        margin-left: 50vw;
    }

    #mask-screaming {
        margin-left: 35vw;
    }

    .heading-primary {
        font-size: clamp(2rem, 10vw, 4rem);
    }

    .body-text {
        font-size: clamp(0.95rem, 3.5vw, 1.15rem);
        max-width: 90vw;
    }

    .section-protocol {
        min-height: 200vh;
    }

    .section-disruption {
        min-height: 120vh;
    }

    .section-persistence {
        min-height: 120vh;
    }

    .persistence-thread-left { left: 3vw; }
    .persistence-thread-mid { left: 5vw; }
    .persistence-thread-right { left: 7vw; }

    .chrome-mask {
        width: 130px;
        height: 180px;
    }

    #mask-screaming {
        width: 150px;
        height: 210px;
    }

    .protocol-fragment,
    .disruption-fragment,
    .persistence-fragment {
        padding: 5vh 0;
    }

    .fragment-1 { margin-top: 8vh; }
    .fragment-2 { margin-top: 12vh; }
    .fragment-3 { margin-top: 15vh; }
    .fragment-4 { margin-top: 18vh; }
    .fragment-5 { margin-top: 12vh; }
}