/* ============================================
   MasqueradeProtocol.com - Styles
   Graffiti-Palazzo Collision / Urban Ritual
   ============================================ */

/* CSS Custom Properties */
:root {
    --deep-soil: #1C1410;
    --wet-clay: #3B2820;
    --raw-umber: #5C4033;
    --burnt-sienna: #A0522D;
    --dried-sage: #6B7F5E;
    --parchment: #E8DCC4;
    --canal-water: #3D6B5E;
    --bone-dust: #F2E8D5;
    --oxidized-copper: #4A7C6F;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Lora', Georgia, serif;
    --font-typewriter: 'Special Elite', 'Courier New', monospace;
    --font-mono: 'Courier Prime', 'Courier New', monospace;
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--deep-soil);
}

body {
    font-family: var(--font-body);
    color: var(--parchment);
    background-color: var(--deep-soil);
    overflow-x: hidden;
    position: relative;
}

/* ============================================
   Noise Texture Overlay
   ============================================ */
#noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.04;
    background-image:
        repeating-radial-gradient(circle at 17% 32%, var(--wet-clay) 0px, transparent 1px),
        repeating-radial-gradient(circle at 62% 78%, var(--raw-umber) 0px, transparent 1px),
        repeating-radial-gradient(circle at 45% 15%, var(--wet-clay) 0px, transparent 1px),
        repeating-radial-gradient(circle at 83% 55%, var(--raw-umber) 0px, transparent 1px);
    background-size: 3px 3px, 4px 4px, 5px 5px, 2px 2px;
}

/* ============================================
   Vignette Overlay
   ============================================ */
#vignette-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
    background: radial-gradient(ellipse at center, transparent 50%, rgba(28, 20, 16, 0.4) 100%);
}

/* ============================================
   Water Bubbles
   ============================================ */
#bubbles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 998;
    overflow: hidden;
}

.bubble {
    position: absolute;
    border-radius: 47% 53% 44% 56% / 52% 48% 55% 45%;
    background: radial-gradient(ellipse at 30% 30%, rgba(74, 124, 111, 0.2), rgba(61, 107, 94, 0.1) 60%, transparent 100%);
    border: 1px solid rgba(74, 124, 111, 0.15);
    animation: bubbleRise var(--rise-duration, 14s) linear infinite, bubbleWobble var(--wobble-duration, 6s) ease-in-out infinite;
    opacity: 0;
}

@keyframes bubbleRise {
    0% {
        transform: translateY(110vh);
        opacity: 0;
    }
    5% {
        opacity: var(--bubble-opacity, 0.6);
    }
    90% {
        opacity: var(--bubble-opacity, 0.6);
    }
    100% {
        transform: translateY(-10vh);
        opacity: 0;
    }
}

@keyframes bubbleWobble {
    0%, 100% {
        margin-left: 0;
    }
    25% {
        margin-left: var(--wobble-x, 8px);
    }
    75% {
        margin-left: calc(var(--wobble-x, 8px) * -1);
    }
}

/* ============================================
   Sidebar Navigation
   ============================================ */
#sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 40px;
    height: 100vh;
    z-index: 1001;
    background: linear-gradient(180deg, var(--wet-clay) 0%, var(--deep-soil) 100%);
    border-right: 1px solid rgba(92, 64, 51, 0.3);
    transition: width 600ms ease-in-out;
    overflow: hidden;
    display: flex;
    align-items: center;
    /* Diamond/argyle sidebar texture */
    background-image:
        repeating-linear-gradient(45deg, transparent, transparent 8px, rgba(107, 127, 94, 0.08) 8px, rgba(107, 127, 94, 0.08) 9px),
        repeating-linear-gradient(-45deg, transparent, transparent 8px, rgba(107, 127, 94, 0.08) 8px, rgba(107, 127, 94, 0.08) 9px),
        linear-gradient(180deg, var(--wet-clay) 0%, var(--deep-soil) 100%);
}

#sidebar:hover {
    width: 200px;
}

.sidebar-inner {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding: 20px 8px;
    width: 200px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--parchment);
    opacity: 0.5;
    transition: opacity 600ms ease-in-out;
    white-space: nowrap;
    padding: 4px 0;
}

.nav-item:hover {
    opacity: 1;
}

.nav-item.active {
    opacity: 1;
    color: var(--burnt-sienna);
}

.nav-mask-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    color: var(--parchment);
    transition: color 600ms ease-in-out;
}

.nav-item.active .nav-mask-icon {
    color: var(--burnt-sienna);
}

.nav-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--parchment);
    overflow: hidden;
    display: inline-block;
    border-right: 2px solid transparent;
    white-space: nowrap;
}

.nav-item:hover .nav-label {
    border-right-color: var(--parchment);
    animation: navCursorBlink 0.8s step-end infinite;
}

@keyframes navCursorBlink {
    0%, 100% { border-right-color: var(--parchment); }
    50% { border-right-color: transparent; }
}

/* ============================================
   Scene Base Styles
   ============================================ */
.scene {
    position: relative;
    min-height: 90vh;
    overflow: hidden;
}

/* ============================================
   Typography
   ============================================ */
.section-heading {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(2.5rem, 7vw, 7rem);
    letter-spacing: 0.08em;
    text-shadow: 3px 3px 0 var(--raw-umber);
    color: var(--parchment);
    margin-bottom: 0.5em;
    line-height: 1.1;
}

/* Stencil spray effect */
.stencil-text {
    filter: url('#stencil-filter') contrast(1.5);
    -webkit-filter: contrast(1.5);
}

.lora-italic {
    font-family: var(--font-body);
    font-weight: 400;
    font-style: italic;
    font-size: 1.1rem;
    line-height: 1.75;
    color: var(--parchment);
    margin-bottom: 1.5em;
}

.lora-regular {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.1rem;
    line-height: 1.75;
    color: var(--parchment);
    margin-bottom: 1.5em;
}

.special-elite {
    font-family: var(--font-typewriter);
}

.protocol-label {
    font-family: var(--font-typewriter);
    font-size: 0.8rem;
    color: var(--raw-umber);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 1em;
}

.protocol-annotation {
    font-family: var(--font-typewriter);
    font-size: 0.85rem;
    color: var(--dried-sage);
    line-height: 1.6;
    padding: 1em;
    border-left: 2px solid var(--dried-sage);
    margin-top: 1em;
    opacity: 0.8;
}

/* ============================================
   Drip Accents
   ============================================ */
.drip-accent {
    position: absolute;
    width: 100%;
    max-width: 300px;
    height: 60px;
    pointer-events: none;
    opacity: 0.7;
    z-index: 2;
}

.drip-gate {
    top: calc(50% + 14vh);
    left: 50%;
    transform: translateX(-50%);
    max-width: 300px;
}

.drip-corridor {
    position: relative;
    width: 200px;
    height: 50px;
    margin-bottom: 1em;
}

.drip-ballroom {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 60px;
    margin-bottom: 1em;
}

.drip-mirror {
    position: relative;
    width: 300px;
    height: 50px;
    margin-bottom: 1em;
}

/* ============================================
   SCENE 1: THE GATE
   ============================================ */
.scene-gate {
    height: 100vh;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--deep-soil);
    position: relative;
}

.mask-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -55%);
    width: min(60vw, 400px);
    height: min(75vw, 500px);
    z-index: 1;
}

.hero-mask-svg {
    width: 100%;
    height: 100%;
}

#mask-left, #mask-right {
    transition: transform 1200ms ease-in-out;
}

.mask-split #mask-left {
    transform: translateX(-60px);
    opacity: 0.3;
}

.mask-split #mask-right {
    transform: translateX(60px);
    opacity: 0.3;
}

.gate-text {
    position: relative;
    z-index: 3;
    text-align: center;
    /* Golden ratio positioning: ~38.2% from top */
    margin-top: -5vh;
}

.gate-title {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(3rem, 9vw, 9rem);
    letter-spacing: 0.08em;
    text-shadow: 4px 4px 0 var(--raw-umber), 0 0 40px rgba(28, 20, 16, 0.8);
    color: var(--parchment);
    line-height: 1;
    margin-bottom: 0.1em;
}

.gate-protocol {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.typewriter {
    font-family: var(--font-typewriter);
    font-size: clamp(1.2rem, 3vw, 2.5rem);
    letter-spacing: 0.3em;
    color: var(--burnt-sienna);
    overflow: hidden;
    white-space: nowrap;
    display: inline-block;
    width: 0;
    animation: typewriterReveal 3s steps(8) 1s forwards;
}

.typewriter-cursor {
    font-family: var(--font-typewriter);
    font-size: clamp(1.2rem, 3vw, 2.5rem);
    color: var(--parchment);
    animation: cursorBlink 0.8s step-end infinite;
    margin-left: -2px;
}

@keyframes typewriterReveal {
    0% { width: 0; }
    100% { width: 8ch; }
}

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

.gate-subtitle {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    color: var(--raw-umber);
    margin-top: 2em;
    opacity: 0.7;
}

/* ============================================
   Threshold Strips
   ============================================ */
.threshold {
    width: 100%;
    height: 40px;
    position: relative;
    z-index: 5;
}

.threshold-herringbone {
    background:
        repeating-linear-gradient(
            -45deg,
            var(--burnt-sienna) 0px,
            var(--burnt-sienna) 4px,
            var(--wet-clay) 4px,
            var(--wet-clay) 8px
        );
    opacity: 0.4;
}

.threshold-diamond {
    background:
        repeating-conic-gradient(
            var(--dried-sage) 0% 25%,
            var(--deep-soil) 0% 50%
        )
        0 0 / 20px 20px;
    opacity: 0.3;
}

.threshold-checker {
    background:
        repeating-conic-gradient(
            var(--raw-umber) 0% 25%,
            var(--wet-clay) 0% 50%
        )
        0 0 / 16px 16px;
    opacity: 0.35;
}

.threshold-herringbone-alt {
    background:
        repeating-linear-gradient(
            45deg,
            var(--canal-water) 0px,
            var(--canal-water) 4px,
            var(--wet-clay) 4px,
            var(--wet-clay) 8px
        );
    opacity: 0.3;
}

/* ============================================
   SCENE 2: THE CORRIDOR
   ============================================ */
.scene-corridor {
    min-height: 90vh;
    max-width: 55vw;
    margin: 0 auto;
    padding: 8vh 3vw 0;
    background-color: var(--deep-soil);
    position: relative;
}

.corridor-inner {
    position: relative;
    z-index: 2;
}

.corridor-text {
    padding-left: 5%;
    padding-right: 15%;
}

.corridor-floor {
    position: absolute;
    bottom: 0;
    left: -10vw;
    right: -10vw;
    height: 60px;
    background:
        repeating-linear-gradient(
            -45deg,
            var(--burnt-sienna) 0px,
            var(--burnt-sienna) 5px,
            var(--wet-clay) 5px,
            var(--wet-clay) 10px
        );
    opacity: 0.15;
    z-index: 0;
}

/* ============================================
   SCENE 3: THE BALLROOM
   ============================================ */
.scene-ballroom {
    min-height: 100vh;
    width: 92vw;
    margin-left: 4vw;
    padding: 8vh 4vw 6vh;
    background-color: var(--deep-soil);
    position: relative;
}

.bg-mask {
    position: absolute;
    pointer-events: none;
    z-index: 0;
}

.bg-mask-1 {
    top: 10%;
    right: 5%;
    width: 300px;
    height: 375px;
    opacity: 0.5;
}

.bg-mask-2 {
    bottom: 15%;
    left: 3%;
    width: 250px;
    height: 312px;
    opacity: 0.5;
    transform: rotate(-15deg);
}

.ballroom-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 2rem;
    position: relative;
    z-index: 2;
    margin-top: 2rem;
}

.ballroom-card {
    padding: 2rem 2.5rem;
    background: rgba(59, 40, 32, 0.4);
    border: 1px solid rgba(92, 64, 51, 0.2);
    position: relative;
}

.card-1 {
    grid-column: 1 / 2;
    grid-row: 1;
    margin-top: 2rem;
}

.card-2 {
    grid-column: 2 / 3;
    grid-row: 1;
    margin-top: -1rem;
    margin-left: -1rem;
}

.card-3 {
    grid-column: 3 / 4;
    grid-row: 1;
    margin-top: 3rem;
}

.card-4 {
    grid-column: 1 / 3;
    grid-row: 2;
}

.card-5 {
    grid-column: 3 / 4;
    grid-row: 2;
    margin-top: -2rem;
}

.card-heading {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    letter-spacing: 0.06em;
    text-shadow: 2px 2px 0 var(--raw-umber);
    color: var(--parchment);
    margin-bottom: 0.8em;
}

.ballroom-floor {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100%;
    background:
        repeating-conic-gradient(
            var(--raw-umber) 0% 25%,
            var(--wet-clay) 0% 50%
        )
        0 0 / 8px 8px;
    opacity: 0.04;
    pointer-events: none;
    z-index: 0;
}

/* ============================================
   SCENE 4: THE MIRROR CHAMBER
   ============================================ */
.scene-mirror {
    min-height: 90vh;
    width: 70vw;
    margin-left: 15vw;
    padding: 8vh 5vw 6vh;
    background-color: var(--deep-soil);
    position: relative;
}

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

.mirror-original {
    padding-bottom: 2rem;
}

.mirror-reflection {
    transform: scaleY(-1);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, transparent 70%);
    mask-image: linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, transparent 70%);
    opacity: 0.3;
    pointer-events: none;
    padding-top: 2rem;
    border-top: 1px solid rgba(74, 124, 111, 0.2);
}

/* ============================================
   SCENE 5: THE UNMASKING
   ============================================ */
.scene-unmasking {
    min-height: 100vh;
    width: 80vw;
    margin-left: 10vw;
    padding: 10vh 5vw 6vh;
    background-color: var(--deep-soil);
    position: relative;
    /* Color shift: Oxidized Copper replaces Burnt Sienna */
    --accent-color: var(--oxidized-copper);
}

.unmasking-heading {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(2rem, 6vw, 5rem);
    letter-spacing: 0.08em;
    text-shadow: 3px 3px 0 var(--raw-umber);
    color: var(--bone-dust);
    margin-bottom: 1em;
    position: relative;
    z-index: 3;
}

.typewriter-line {
    font-family: var(--font-typewriter);
    font-size: clamp(1.5rem, 4vw, 3.5rem);
    letter-spacing: 0.15em;
    color: var(--oxidized-copper);
    overflow: hidden;
    white-space: nowrap;
    display: inline-block;
    width: 0;
}

.typewriter-line.typing {
    animation: unmaskTypewriter 4s steps(24) forwards;
}

.unmask-cursor {
    font-family: var(--font-typewriter);
    font-size: clamp(1.5rem, 4vw, 3.5rem);
    color: var(--parchment);
    animation: cursorBlink 0.8s step-end infinite;
}

@keyframes unmaskTypewriter {
    0% { width: 0; }
    100% { width: 24ch; }
}

.unmasking-body {
    position: relative;
    z-index: 3;
    max-width: 65ch;
    padding-left: 5%;
}

.unmasking-body .protocol-annotation {
    border-left-color: var(--oxidized-copper);
    color: var(--oxidized-copper);
}

.dissolving-mask-svg {
    position: absolute;
    top: 50%;
    right: 5%;
    transform: translateY(-50%);
    width: min(30vw, 300px);
    height: auto;
    z-index: 1;
    opacity: 0.6;
}

.final-timestamp {
    font-size: 0.75rem;
    color: var(--raw-umber);
    letter-spacing: 0.1em;
    margin-top: 4rem;
    opacity: 0.5;
    position: relative;
    z-index: 3;
}

/* ============================================
   Scene Noise Intensity (increases in Unmasking)
   ============================================ */
.scene-unmasking #noise-overlay {
    opacity: 0.07;
}

/* ============================================
   Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .bubble {
        animation: none;
        display: none;
    }

    .typewriter {
        animation: none;
        width: auto;
    }

    .typewriter-line {
        animation: none;
        width: auto;
    }

    .typewriter-cursor,
    .unmask-cursor {
        animation: none;
        display: none;
    }

    #mask-left, #mask-right {
        transition: none;
    }

    .nav-label {
        animation: none;
    }
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 768px) {
    #sidebar {
        width: 32px;
    }

    #sidebar:hover {
        width: 160px;
    }

    .scene-corridor {
        max-width: 90vw;
    }

    .scene-ballroom {
        width: 95vw;
        margin-left: 2.5vw;
    }

    .ballroom-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .card-1, .card-2, .card-3, .card-4, .card-5 {
        grid-column: 1;
        grid-row: auto;
        margin: 0;
    }

    .scene-mirror {
        width: 90vw;
        margin-left: 5vw;
    }

    .scene-unmasking {
        width: 90vw;
        margin-left: 5vw;
    }

    .corridor-text {
        padding-left: 0;
        padding-right: 5%;
    }

    .dissolving-mask-svg {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        width: 50vw;
        margin: 2rem auto;
        display: block;
    }
}

@media (max-width: 480px) {
    .gate-title {
        font-size: clamp(2rem, 12vw, 4rem);
    }

    .section-heading {
        font-size: clamp(1.8rem, 8vw, 3rem);
    }

    .ballroom-card {
        padding: 1.5rem;
    }
}