/* =============================================
   MasqueradeProtocol.com - Styles
   Retro Art-Deco / Monochrome Violet Undertone
   ============================================= */

/* --- CSS Custom Properties --- */
:root {
    --deep-void: #0b0b0f;
    --graphite: #1e1e26;
    --pewter: #3a3a4a;
    --pewter-warm: #3a3a3a;
    --silver-mask: #8a8a9e;
    --pearl: #c8c8d8;
    --bright-linen: #e8e8f0;
    --phantom-white: #f4f4fa;

    --font-display: 'Poiret One', sans-serif;
    --font-secondary: 'Josefin Sans', sans-serif;
    --font-body: 'IBM Plex Sans', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--deep-void);
    color: var(--silver-mask);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
}

/* --- Film Grain Noise Overlay --- */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-size: 256px 256px;
}

/* --- Acts (Full Viewport Sections) --- */
.act {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.act-inner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: clamp(40px, 6vh, 80px) 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* --- Act Titles --- */
.act-title {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(1.5rem, 3vw, 3rem);
    color: var(--pearl);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: clamp(30px, 5vh, 60px);
    text-align: center;
}

/* --- Chevron Dividers --- */
.chevron-divider {
    display: flex;
    justify-content: center;
    padding: clamp(40px, 6vh, 80px) 0;
    animation: chevronBounce 2s ease-in-out infinite;
}

@keyframes chevronBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* --- Cards: Base --- */
.card, .invitation-card {
    position: relative;
    background-color: var(--deep-void);
    border: 1px solid var(--pewter);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 4 / 5;
}

.card-front, .card-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

/* --- Card Front (Masked State) --- */
.card-front {
    z-index: 2;
    background-color: var(--deep-void);
    transition: clip-path 800ms cubic-bezier(0.16, 1, 0.3, 1);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

.card.revealed .card-front,
.invitation-card.revealed .card-front {
    clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
}

/* Diagonal wipe mid-state is handled via JS animation or we use the CSS transition
   which goes through the polygon interpolation naturally */

/* --- Card Back (Revealed State) --- */
.card-back {
    z-index: 1;
    background-color: var(--graphite);
    padding: 24px;
}

/* --- Card Corner Accents --- */
.card-corner-tl, .card-corner-br {
    position: absolute;
    width: 20px;
    height: 20px;
    z-index: 3;
    opacity: 0;
    transition: opacity 200ms ease 800ms;
}

.card.revealed .card-corner-tl,
.card.revealed .card-corner-br,
.invitation-card.revealed .card-corner-tl,
.invitation-card.revealed .card-corner-br {
    opacity: 1;
}

.card-corner-tl {
    top: 6px;
    left: 6px;
    border-top: 1px solid var(--pewter);
    border-left: 1px solid var(--pewter);
}

.card-corner-br {
    bottom: 6px;
    right: 6px;
    border-bottom: 1px solid var(--pewter);
    border-right: 1px solid var(--pewter);
}

/* --- Glyphs --- */
.glyph {
    margin-bottom: 16px;
    opacity: 0.8;
}

/* --- Card Numerals --- */
.card-numeral {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--pearl);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-top: 8px;
}

/* --- Protocol Numbers --- */
.protocol-number {
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 0.75rem;
    color: var(--silver-mask);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: auto;
    padding-top: 12px;
}

/* --- Data Labels (Typewriter Effect) --- */
.data-label {
    font-family: var(--font-mono);
    font-weight: 400;
    font-size: 0.75rem;
    color: var(--pearl);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 12px;
    overflow: hidden;
    white-space: nowrap;
    width: 0;
    border-right: 1px solid var(--silver-mask);
}

.card.revealed .data-label {
    animation: typewriter 1.2s steps(20, end) 0.8s forwards, blinkCaret 0.6s step-end 0.8s 3;
}

@keyframes typewriter {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blinkCaret {
    50% { border-color: transparent; }
}

/* --- Data Visualizations --- */
.dataviz {
    width: 70%;
    height: auto;
    max-height: 60%;
}

.dataviz line, .dataviz polyline, .dataviz polygon, .dataviz rect {
    vector-effect: non-scaling-stroke;
}

/* --- SVG Stroke Drawing Animation --- */
.dataviz .radar-data,
.dataviz .radar-data-2,
.dataviz .area-data,
.dataviz .burst-data,
.dataviz .area-data-2,
.dataviz .radar-inset-data,
.panoramic-line-1,
.panoramic-line-2,
.panoramic-line-3,
.final-data,
.final-poly-outer,
.final-poly-mid,
.final-poly-inner {
    stroke-dasharray: 2000;
    stroke-dashoffset: 2000;
    transition: stroke-dashoffset 1500ms ease;
}

.card.revealed .dataviz .radar-data,
.card.revealed .dataviz .radar-data-2,
.card.revealed .dataviz .area-data,
.card.revealed .dataviz .burst-data,
.card.revealed .dataviz .area-data-2,
.card.revealed .dataviz .radar-inset-data {
    stroke-dashoffset: 0;
}

.panoramic-chart.draw-in .panoramic-line-1 {
    stroke-dashoffset: 0;
    transition-delay: 0ms;
}

.panoramic-chart.draw-in .panoramic-line-2 {
    stroke-dashoffset: 0;
    transition-delay: 100ms;
}

.panoramic-chart.draw-in .panoramic-line-3 {
    stroke-dashoffset: 0;
    transition-delay: 200ms;
}

.panoramic-chart.draw-in .radar-inset-data {
    stroke-dashoffset: 0;
    transition-delay: 400ms;
}

.final-constellation.draw-in .final-poly-outer {
    stroke-dashoffset: 0;
    transition-delay: 0ms;
}

.final-constellation.draw-in .final-poly-mid {
    stroke-dashoffset: 0;
    transition-delay: 200ms;
}

.final-constellation.draw-in .final-poly-inner {
    stroke-dashoffset: 0;
    transition-delay: 400ms;
}

.final-constellation.draw-in .final-data {
    stroke-dashoffset: 0;
    transition-delay: 600ms;
}

/* --- Act 1: The Invitation --- */
.act-invitation {
    min-height: 100vh;
}

.invitation-card {
    width: clamp(280px, 40vw, 500px);
    height: 40vh;
    min-height: 300px;
    aspect-ratio: auto;
}

.invitation-card.masked {
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0px var(--pewter); }
    50% { box-shadow: 0 0 30px var(--pewter); }
}

.invitation-card.revealed {
    animation: none;
    box-shadow: none;
}

.invitation-text {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(2rem, 8vw, 5rem);
    color: var(--pearl);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    text-align: center;
    line-height: 1.2;
}

.invitation-card .card-back .card-content {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 1rem;
    color: var(--silver-mask);
    text-align: center;
    line-height: 1.7;
    max-width: 400px;
}

/* --- Act 2: The Antechamber --- */
.grid-3x2 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    width: 100%;
    max-width: 900px;
}

/* --- Act 3: The Grand Hall --- */
.panoramic-viz {
    width: 100%;
    overflow: hidden;
    padding: 20px 0;
}

.panoramic-chart {
    width: 100%;
    height: auto;
}

.hall-description {
    font-family: var(--font-secondary);
    font-weight: 300;
    font-size: clamp(0.9rem, 1.5vw, 1.1rem);
    color: var(--silver-mask);
    text-align: center;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: clamp(20px, 4vh, 50px);
    max-width: 700px;
    line-height: 1.8;
}

/* --- Act 4: The Inner Circle --- */
.grid-2x2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    width: 100%;
    max-width: 600px;
}

.protocol-gate-message {
    font-family: var(--font-secondary);
    font-weight: 300;
    font-size: 0.9rem;
    color: var(--silver-mask);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 30px;
    text-align: center;
    transition: opacity 600ms ease;
}

.protocol-gate-message.hidden {
    opacity: 0;
}

/* Protocol Locked State */
.protocol-locked {
    opacity: 0.4;
    pointer-events: none;
    position: relative;
}

.protocol-locked::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        30deg,
        transparent,
        transparent 10px,
        rgba(58, 58, 74, 0.15) 10px,
        rgba(58, 58, 74, 0.15) 11px
    );
    z-index: 4;
    pointer-events: none;
}

.protocol-unlocked {
    opacity: 1;
    pointer-events: auto;
    transition: opacity 600ms ease;
}

.protocol-unlocked::after {
    display: none;
}

/* --- Act 5: The Unmasking --- */
.act-unmasking {
    min-height: 100vh;
}

.unmasking-text {
    font-family: var(--font-secondary);
    font-weight: 300;
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--silver-mask);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: clamp(30px, 5vh, 60px);
    text-align: center;
}

.final-viz {
    width: 100%;
    max-width: 800px;
    overflow: hidden;
}

.final-constellation {
    width: 100%;
    height: auto;
}

/* --- Protocol Complete: Mass Unmasking --- */
body.protocol-complete .card.masked .card-front {
    clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
    transition: clip-path 800ms cubic-bezier(0.16, 1, 0.3, 1);
}

body.protocol-complete .card.masked .card-corner-tl,
body.protocol-complete .card.masked .card-corner-br {
    opacity: 1;
    transition: opacity 200ms ease 800ms;
}

body.protocol-complete .card.masked .data-label {
    animation: typewriter 1.2s steps(20, end) 0.8s forwards, blinkCaret 0.6s step-end 0.8s 3;
}

body.protocol-complete .card.masked .dataviz .radar-data,
body.protocol-complete .card.masked .dataviz .radar-data-2,
body.protocol-complete .card.masked .dataviz .area-data,
body.protocol-complete .card.masked .dataviz .burst-data,
body.protocol-complete .card.masked .dataviz .area-data-2,
body.protocol-complete .card.masked .dataviz .radar-inset-data {
    stroke-dashoffset: 0;
}

/* Staggered unmasking delays */
body.protocol-complete .card.masked:nth-child(1) .card-front { transition-delay: 0ms; }
body.protocol-complete .card.masked:nth-child(2) .card-front { transition-delay: 50ms; }
body.protocol-complete .card.masked:nth-child(3) .card-front { transition-delay: 100ms; }
body.protocol-complete .card.masked:nth-child(4) .card-front { transition-delay: 150ms; }
body.protocol-complete .card.masked:nth-child(5) .card-front { transition-delay: 200ms; }
body.protocol-complete .card.masked:nth-child(6) .card-front { transition-delay: 250ms; }

/* --- Footer --- */
.site-footer {
    padding: 40px 24px;
    text-align: center;
    border-top: 1px solid var(--pewter);
}

.site-footer .protocol-number {
    margin-top: 0;
    padding-top: 0;
}

/* --- Diagonal Scan Line on Reveal --- */
.card.revealing::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        30deg,
        transparent 0%,
        rgba(232, 232, 240, 0.05) 45%,
        rgba(232, 232, 240, 0.12) 50%,
        rgba(232, 232, 240, 0.05) 55%,
        transparent 100%
    );
    z-index: 5;
    animation: scanLine 800ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
    pointer-events: none;
}

@keyframes scanLine {
    from { left: -100%; }
    to { left: 200%; }
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .grid-3x2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-2x2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .invitation-card {
        width: clamp(250px, 70vw, 400px);
        height: 60vh;
    }

    .card, .invitation-card {
        aspect-ratio: 3 / 4;
    }
}

@media (max-width: 480px) {
    .grid-3x2 {
        grid-template-columns: 1fr;
    }

    .grid-2x2 {
        grid-template-columns: 1fr;
    }

    .invitation-card {
        width: 85vw;
        height: 60vh;
    }
}

/* --- Hover States (Desktop) --- */
@media (hover: hover) {
    .card:not(.protocol-locked):not(.revealed):hover {
        border-color: var(--silver-mask);
    }

    .card:not(.protocol-locked):not(.revealed):hover .card-numeral,
    .card:not(.protocol-locked):not(.revealed):hover .glyph line {
        stroke: var(--bright-linen);
        color: var(--bright-linen);
    }
}

/* --- Concentric Polygon Stroke Animations --- */
.dataviz .poly-outer,
.dataviz .poly-mid,
.dataviz .poly-inner {
    stroke-dasharray: 2000;
    stroke-dashoffset: 2000;
    transition: stroke-dashoffset 1500ms ease;
}

.card.revealed .dataviz .poly-outer {
    stroke-dashoffset: 0;
    transition-delay: 0ms;
}

.card.revealed .dataviz .poly-mid {
    stroke-dashoffset: 0;
    transition-delay: 200ms;
}

.card.revealed .dataviz .poly-inner {
    stroke-dashoffset: 0;
    transition-delay: 400ms;
}

body.protocol-complete .card.masked .dataviz .poly-outer,
body.protocol-complete .card.masked .dataviz .poly-mid,
body.protocol-complete .card.masked .dataviz .poly-inner {
    stroke-dashoffset: 0;
}

/* --- Selection color --- */
::selection {
    background-color: var(--pewter);
    color: var(--phantom-white);
}