/* ============================================================
   gabs.report - Glass Briefing Room
   Warm-Earthy Glassmorphism / Asymmetric Panel Architecture
   ============================================================ */

/* --- Custom Properties --- */
:root {
    --raw-umber: #2C1A0E;
    --kiln-clay: #3D2415;
    --sandstone-frost: #B47848;
    --parchment-glow: #F5E6D2;
    --dried-clay: #C4A882;
    --burnt-amber: #D4883C;
    --terracotta-signal: #B85C2A;
    --desert-sun: #E8A830;
    --frost-edge: rgba(255, 255, 255, 0.08);
    --secondary-text: #E8D5BE;
    --glass-white: #FFFFFF;
    --panel-glass-light: rgba(180, 120, 72, 0.12);
    --panel-glass-mid: rgba(180, 120, 72, 0.15);
    --panel-glass-heavy: rgba(245, 230, 210, 0.25);
    --panel-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
    --trace-primary: rgba(212, 136, 60, 0.4);
    --trace-secondary: rgba(212, 136, 60, 0.2);
    --trace-glow: 0 0 6px rgba(232, 168, 48, 0.2);
    --trace-glow-strong: 0 0 12px rgba(232, 168, 48, 0.3);
    --vw-unit: 1vw;
}

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

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

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--raw-umber);
    background: radial-gradient(ellipse at 30% 25%, var(--raw-umber) 0%, var(--kiln-clay) 100%);
    color: var(--parchment-glow);
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Noise Overlay --- */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.03;
    background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAYAAAAeP4ixAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAA3ElEQVRoge2YQQ6AIBAEN/7/z3rxYBQddneK2LkSYJihUIgAAAAAAAD8iV3bfNr2XD9q+t7kfddaRfHI1FrvzAjStXbXdVe7AiJdvJ4pLSIjQ+lsa56+l9Z8V3pkVWc+U+aJ7N3zzLzHlOXrSFfX+6Ij2kUi3e9K/axU64nvJKRhVIqOkJiNlBaRkaF0tsXsNaN41Fo9p3Y986CxegZZxCJWsYhVLGIVi1jFIlaxiFUsYhWLWMUiVrGIVSxiFYtYxSJWsYhVLGIVi1jFIlaxiFUsYhWL/JoH73UiLEwSNtMAAAAASUVORK5CYII=");
}

/* --- Scanline Overlay --- */
.scanline-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 3px,
        rgba(245, 230, 210, 0.015) 3px,
        rgba(245, 230, 210, 0.015) 4px
    );
    animation: scanlineDrift 8s linear infinite;
}

@keyframes scanlineDrift {
    0% { transform: translateY(0); }
    100% { transform: translateY(4px); }
}

/* --- Typography --- */
.hero-title {
    font-family: 'Instrument Serif', serif;
    font-size: clamp(2.4rem, 5vw + 1rem, 6rem);
    font-weight: 400;
    color: var(--parchment-glow);
    letter-spacing: -0.02em;
    line-height: 1.05;
}

.hero-title .accent-dot {
    color: var(--burnt-amber);
}

.hero-subtitle {
    font-family: 'DM Sans', sans-serif;
    font-size: clamp(0.95rem, 1.2vw + 0.5rem, 1.25rem);
    font-weight: 400;
    color: #E8D5BE;
    opacity: 0.9;
    line-height: 1.65;
    max-width: 62ch;
    margin-top: 1.2rem;
}

.section-title {
    font-family: 'Instrument Serif', serif;
    font-size: clamp(2rem, 4vw + 0.5rem, 4.5rem);
    font-weight: 400;
    color: var(--parchment-glow);
    letter-spacing: -0.02em;
    line-height: 1.05;
    margin-bottom: 1.5rem;
}

.subsection-title {
    font-family: 'Instrument Serif', serif;
    font-size: clamp(1.4rem, 2.5vw + 0.5rem, 2.5rem);
    font-weight: 400;
    color: var(--burnt-amber);
    letter-spacing: -0.01em;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.final-title {
    font-family: 'Instrument Serif', serif;
    font-size: clamp(2.8rem, 6vw + 1rem, 7rem);
    font-weight: 400;
    color: var(--parchment-glow);
    letter-spacing: -0.02em;
    line-height: 1.05;
    margin-bottom: 1.5rem;
}

.body-text {
    font-family: 'DM Sans', sans-serif;
    font-size: clamp(0.95rem, 1.2vw + 0.5rem, 1.25rem);
    font-weight: 400;
    color: rgba(232, 213, 190, 0.9);
    line-height: 1.65;
    max-width: 62ch;
    margin-bottom: 1.2rem;
}

.body-text:last-of-type {
    margin-bottom: 0;
}

.meta-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(0.7rem, 0.8vw + 0.3rem, 0.85rem);
    font-weight: 300;
    color: rgba(212, 136, 60, 0.7);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 1rem;
}

.final-text {
    font-family: 'DM Sans', sans-serif;
    font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.5rem);
    font-weight: 400;
    color: var(--dried-clay);
    line-height: 1.65;
    margin-top: 1.5rem;
}

.meta-timestamp {
    margin-top: 2rem;
    opacity: 0.5;
}

/* --- Accent Line --- */
.accent-line {
    width: 0;
    height: 2px;
    background: var(--burnt-amber);
    box-shadow: var(--trace-glow-strong);
    margin-top: 1.5rem;
    transition: width 1.2s ease-out;
}

.accent-line.revealed {
    width: 120px;
}

/* --- Chamber Base --- */
.chamber {
    position: relative;
    min-height: 100vh;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: auto;
    gap: 0;
    padding: clamp(2rem, 5vw, 6rem);
    overflow: hidden;
}

.chamber-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* Vignette */
.chamber-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 40%, rgba(20, 10, 5, 0.5) 100%);
    pointer-events: none;
}

/* --- Glass Panel Base --- */
.panel-mid {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: var(--panel-glass-mid);
    border: 1px solid var(--frost-edge);
    border-radius: 2px;
    z-index: 1;
}

.panel-content {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: var(--panel-glass-heavy);
    border: 1px solid var(--frost-edge);
    border-radius: 2px;
    box-shadow: var(--panel-shadow);
    padding: clamp(1.5rem, 3vw, 3rem);
    z-index: 2;
    position: relative;
}

.panel-accent {
    height: 2px;
    background: rgba(212, 136, 60, 0.6);
    box-shadow: var(--trace-glow-strong);
    z-index: 3;
}

/* --- Reveal Animations --- */
.reveal-panel {
    opacity: 0;
    transform: scale(0.96);
    transition: opacity 800ms ease-out, transform 800ms ease-out;
    will-change: transform, opacity;
}

.reveal-panel.revealed {
    opacity: 1;
    transform: scale(1);
}

.reveal-text {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 600ms ease-out, transform 600ms ease-out;
    will-change: transform, opacity;
}

.reveal-text.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-trace {
    width: 0;
    transition: width 1200ms ease-out;
}

.reveal-trace.revealed {
    width: 120px;
}

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

.trace {
    position: absolute;
    background: var(--trace-primary);
}

.trace-h {
    height: 1px;
}

.trace-v {
    width: 1px;
}

.trace-node {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(212, 136, 60, 0.6);
    z-index: 2;
}

/* Chamber 1 Traces */
.circuit-traces-1 .trace-h-1 { top: 20%; left: 5%; width: 0; transition: width 1.2s ease-out 0.2s; }
.circuit-traces-1 .trace-v-1 { top: 20%; left: 35%; height: 0; transition: height 0.8s ease-out 0.6s; }
.circuit-traces-1 .node-1 { top: calc(20% - 2px); left: calc(35% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1s; }
.circuit-traces-1 .trace-h-2 { top: 40%; left: 35%; width: 0; transition: width 1s ease-out 0.8s; }
.circuit-traces-1 .trace-v-2 { top: 40%; left: 55%; height: 0; transition: height 0.6s ease-out 1.2s; }
.circuit-traces-1 .node-2 { top: calc(40% - 2px); left: calc(55% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1.5s; }
.circuit-traces-1 .trace-h-3 { top: 75%; left: 10%; width: 0; transition: width 1.4s ease-out 0.4s; }
.circuit-traces-1 .node-3 { top: calc(75% - 2px); left: calc(50% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1.2s; }

.circuit-traces-1.traced .trace-h-1 { width: 30%; }
.circuit-traces-1.traced .trace-v-1 { height: 20%; }
.circuit-traces-1.traced .node-1 { opacity: 1; }
.circuit-traces-1.traced .trace-h-2 { width: 20%; }
.circuit-traces-1.traced .trace-v-2 { height: 15%; }
.circuit-traces-1.traced .node-2 { opacity: 1; }
.circuit-traces-1.traced .trace-h-3 { width: 40%; }
.circuit-traces-1.traced .node-3 { opacity: 1; }

/* Chamber 2 Traces */
.circuit-traces-2 .trace-h-4 { top: 15%; left: 60%; width: 0; transition: width 1.2s ease-out 0.3s; }
.circuit-traces-2 .trace-v-3 { top: 15%; left: 85%; height: 0; transition: height 0.9s ease-out 0.8s; }
.circuit-traces-2 .node-4 { top: calc(15% - 2px); left: calc(85% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1.2s; }
.circuit-traces-2 .trace-h-5 { top: 55%; left: 3%; width: 0; transition: width 1.5s ease-out 0.5s; }
.circuit-traces-2 .node-5 { top: calc(55% - 2px); left: calc(40% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1.4s; }

.circuit-traces-2.traced .trace-h-4 { width: 25%; }
.circuit-traces-2.traced .trace-v-3 { height: 25%; }
.circuit-traces-2.traced .node-4 { opacity: 1; }
.circuit-traces-2.traced .trace-h-5 { width: 37%; }
.circuit-traces-2.traced .node-5 { opacity: 1; }

/* Chamber 3 Traces */
.circuit-traces-3 .trace-h-6 { top: 10%; left: 8%; width: 0; transition: width 1s ease-out 0.2s; }
.circuit-traces-3 .trace-v-4 { top: 10%; left: 45%; height: 0; transition: height 0.7s ease-out 0.5s; }
.circuit-traces-3 .trace-h-7 { top: 30%; left: 45%; width: 0; transition: width 0.8s ease-out 0.8s; }
.circuit-traces-3 .node-6 { top: calc(30% - 2px); left: calc(65% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1.1s; }
.circuit-traces-3 .trace-v-5 { top: 60%; left: 70%; height: 0; transition: height 0.6s ease-out 0.9s; }
.circuit-traces-3 .node-7 { top: calc(60% - 2px); left: calc(70% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1.2s; }
.circuit-traces-3 .trace-h-8 { top: 80%; left: 20%; width: 0; transition: width 1.3s ease-out 0.4s; }
.circuit-traces-3 .node-8 { top: calc(80% - 2px); left: calc(60% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1.3s; }

.circuit-traces-3.traced .trace-h-6 { width: 37%; }
.circuit-traces-3.traced .trace-v-4 { height: 20%; }
.circuit-traces-3.traced .trace-h-7 { width: 20%; }
.circuit-traces-3.traced .node-6 { opacity: 1; }
.circuit-traces-3.traced .trace-v-5 { height: 15%; }
.circuit-traces-3.traced .node-7 { opacity: 1; }
.circuit-traces-3.traced .trace-h-8 { width: 40%; }
.circuit-traces-3.traced .node-8 { opacity: 1; }

/* Chamber 4 Traces */
.circuit-traces-4 .trace-h-9 { top: 8%; left: 5%; width: 0; transition: width 1.2s ease-out 0.2s; }
.circuit-traces-4 .trace-v-6 { top: 8%; left: 50%; height: 0; transition: height 0.8s ease-out 0.6s; }
.circuit-traces-4 .node-9 { top: calc(8% - 2px); left: calc(50% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1s; }
.circuit-traces-4 .trace-h-10 { top: 35%; left: 50%; width: 0; transition: width 1s ease-out 0.8s; }
.circuit-traces-4 .trace-v-7 { top: 35%; left: 90%; height: 0; transition: height 0.6s ease-out 1.2s; }
.circuit-traces-4 .node-10 { top: calc(35% - 2px); left: calc(90% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1.5s; }
.circuit-traces-4 .trace-h-11 { top: 70%; left: 10%; width: 0; transition: width 1.5s ease-out 0.3s; }
.circuit-traces-4 .trace-v-8 { top: 70%; left: 60%; height: 0; transition: height 0.5s ease-out 1s; }
.circuit-traces-4 .node-11 { top: calc(70% - 2px); left: calc(60% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1.3s; }
.circuit-traces-4 .trace-h-12 { top: 90%; left: 30%; width: 0; transition: width 1.2s ease-out 0.6s; }
.circuit-traces-4 .node-12 { top: calc(90% - 2px); left: calc(55% - 2px); opacity: 0; transition: opacity 0.3s ease-out 1.4s; }

.circuit-traces-4.traced .trace-h-9 { width: 45%; }
.circuit-traces-4.traced .trace-v-6 { height: 27%; }
.circuit-traces-4.traced .node-9 { opacity: 1; }
.circuit-traces-4.traced .trace-h-10 { width: 40%; }
.circuit-traces-4.traced .trace-v-7 { height: 20%; }
.circuit-traces-4.traced .node-10 { opacity: 1; }
.circuit-traces-4.traced .trace-h-11 { width: 50%; }
.circuit-traces-4.traced .trace-v-8 { height: 15%; }
.circuit-traces-4.traced .node-11 { opacity: 1; }
.circuit-traces-4.traced .trace-h-12 { width: 25%; }
.circuit-traces-4.traced .node-12 { opacity: 1; }

/* Trace hover glow */
.trace:hover {
    box-shadow: var(--trace-glow);
}

.trace-node:hover {
    box-shadow: var(--trace-glow-strong);
}

/* ============================================================
   CHAMBER 1 — Signal Acquisition
   ============================================================ */
.chamber-1 {
    align-items: center;
    min-height: 100vh;
}

.chamber-1 .panel-mid-1 {
    grid-column: 1 / 8;
    grid-row: 1 / 2;
    min-height: 70vh;
    transform: rotate(-2deg) scale(0.96);
    z-index: 1;
    align-self: center;
}

.chamber-1 .panel-mid-1.revealed {
    transform: rotate(-2deg) scale(1);
}

.chamber-1 .panel-hero {
    grid-column: 2 / 9;
    grid-row: 1 / 2;
    align-self: center;
    z-index: 3;
    padding: clamp(2rem, 5vw, 5rem);
    transform: rotate(1deg) scale(0.96);
}

.chamber-1 .panel-hero.revealed {
    transform: rotate(1deg) scale(1);
}

.chamber-1 .panel-accent-1 {
    grid-column: 3 / 11;
    grid-row: 1 / 2;
    align-self: end;
    margin-bottom: 15vh;
    z-index: 4;
}

/* ============================================================
   CHAMBER 2 — Data Stratification
   ============================================================ */
.chamber-2 {
    align-items: start;
    padding-top: clamp(4rem, 8vw, 10rem);
}

.chamber-2 .panel-strat-bg {
    grid-column: 1 / 13;
    grid-row: 1 / 4;
    min-height: 80vh;
    transform: rotate(1deg) scale(0.96);
    z-index: 0;
}

.chamber-2 .panel-strat-bg.revealed {
    transform: rotate(1deg) scale(1);
}

.chamber-2 .panel-strat-1 {
    grid-column: 1 / 8;
    grid-row: 1 / 2;
    margin-top: clamp(3rem, 5vw, 6rem);
    margin-left: clamp(1rem, 3vw, 4rem);
    transform: rotate(-1.5deg) scale(0.96);
    z-index: 2;
}

.chamber-2 .panel-strat-1.revealed {
    transform: rotate(-1.5deg) scale(1);
}

.chamber-2 .panel-strat-2 {
    grid-column: 5 / 12;
    grid-row: 2 / 3;
    margin-top: clamp(2rem, 4vw, 5rem);
    transform: rotate(2deg) scale(0.96);
    z-index: 3;
}

.chamber-2 .panel-strat-2.revealed {
    transform: rotate(2deg) scale(1);
}

.chamber-2 .panel-strat-3 {
    grid-column: 2 / 6;
    grid-row: 3 / 4;
    margin-top: clamp(2rem, 3vw, 4rem);
    transform: rotate(-0.5deg) scale(0.96);
    z-index: 2;
}

.chamber-2 .panel-strat-3.revealed {
    transform: rotate(-0.5deg) scale(1);
}

/* ============================================================
   CHAMBER 3 — Signal Analysis
   ============================================================ */
.chamber-3 {
    align-items: start;
    padding-top: clamp(3rem, 6vw, 8rem);
    min-height: 120vh;
}

.chamber-3 .panel-analysis-bg {
    grid-column: 1 / 13;
    grid-row: 1 / 5;
    min-height: 90vh;
    z-index: 0;
    transform: scale(0.96);
}

.chamber-3 .panel-analysis-bg.revealed {
    transform: scale(1);
}

.chamber-3 .panel-analysis-1 {
    grid-column: 1 / 7;
    grid-row: 1 / 2;
    margin-top: clamp(2rem, 4vw, 5rem);
    margin-left: clamp(0.5rem, 2vw, 3rem);
    transform: rotate(1.5deg) scale(0.96);
    z-index: 2;
}

.chamber-3 .panel-analysis-1.revealed {
    transform: rotate(1.5deg) scale(1);
}

.chamber-3 .panel-analysis-2 {
    grid-column: 6 / 13;
    grid-row: 2 / 3;
    margin-top: clamp(1rem, 3vw, 4rem);
    transform: rotate(-2deg) scale(0.96);
    z-index: 3;
}

.chamber-3 .panel-analysis-2.revealed {
    transform: rotate(-2deg) scale(1);
}

.chamber-3 .panel-analysis-3 {
    grid-column: 2 / 7;
    grid-row: 3 / 4;
    margin-top: clamp(1.5rem, 3vw, 4rem);
    transform: rotate(0.8deg) scale(0.96);
    z-index: 2;
}

.chamber-3 .panel-analysis-3.revealed {
    transform: rotate(0.8deg) scale(1);
}

.chamber-3 .panel-analysis-4 {
    grid-column: 7 / 12;
    grid-row: 4 / 5;
    margin-top: clamp(1rem, 2vw, 3rem);
    transform: rotate(-1.2deg) scale(0.96);
    z-index: 2;
}

.chamber-3 .panel-analysis-4.revealed {
    transform: rotate(-1.2deg) scale(1);
}

/* ============================================================
   CHAMBER 4 — Pattern Recognition
   ============================================================ */
.chamber-4 {
    align-items: center;
    min-height: 100vh;
}

.chamber-4 .panel-pattern {
    grid-column: 2 / 12;
    grid-row: 1 / 2;
    padding: clamp(2rem, 5vw, 5rem);
    transform: scale(0.96);
    z-index: 2;
    position: relative;
    overflow: hidden;
}

.chamber-4 .panel-pattern.revealed {
    transform: scale(1);
}

/* Circuit motif inside pattern panel */
.circuit-motif {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.motif-trace {
    position: absolute;
    background: var(--trace-primary);
}

.motif-trace-1 {
    top: 15%;
    left: 0;
    width: 100%;
    height: 1px;
    opacity: 0.3;
}

.motif-trace-2 {
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    opacity: 0.2;
}

.motif-trace-3 {
    top: 85%;
    left: 0;
    width: 100%;
    height: 1px;
    opacity: 0.15;
}

.motif-node {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(212, 136, 60, 0.5);
}

.motif-node-1 { top: calc(15% - 2px); left: 20%; }
.motif-node-2 { top: calc(15% - 2px); left: 70%; }
.motif-node-3 { top: calc(50% - 2px); left: 40%; }
.motif-node-4 { top: calc(85% - 2px); left: 85%; }

/* ============================================================
   CHAMBER 5 — Transmission End
   ============================================================ */
.chamber-5 {
    align-items: center;
    justify-items: center;
    min-height: 100vh;
    background: transparent;
}

.chamber-5 .chamber-bg {
    background: radial-gradient(ellipse at 50% 50%, var(--kiln-clay), var(--raw-umber) 80%);
}

.chamber-5 .panel-final {
    grid-column: 4 / 10;
    grid-row: 1 / 2;
    text-align: center;
    background: rgba(180, 120, 72, 0.08);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transform: scale(0.96);
}

.chamber-5 .panel-final.revealed {
    transform: scale(1);
}

.chamber-5 .accent-line {
    margin-left: auto;
    margin-right: auto;
}

/* ============================================================
   GLITCH EFFECT
   ============================================================ */
@keyframes glitchShift {
    0% { transform: translate(0); filter: none; }
    10% { transform: translate(3px, -1px); filter: hue-rotate(15deg); }
    20% { transform: translate(-2px, 2px); }
    30% { transform: translate(4px, 0); filter: hue-rotate(-10deg); }
    40% { transform: translate(-1px, -3px); }
    50% { transform: translate(2px, 1px); filter: none; }
    60% { transform: translate(-3px, 0); filter: hue-rotate(5deg); }
    70% { transform: translate(0, 2px); }
    80% { transform: translate(1px, -1px); filter: hue-rotate(-5deg); }
    90% { transform: translate(-2px, 0); }
    100% { transform: translate(0); filter: none; }
}

.glitch-active {
    animation: glitchShift 300ms steps(4) forwards;
}

.glitch-target::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
    opacity: 0;
    mix-blend-mode: screen;
}

.glitch-active::before {
    background: linear-gradient(
        90deg,
        rgba(212, 136, 60, 0.1) 0%,
        rgba(232, 168, 48, 0.05) 50%,
        rgba(184, 92, 42, 0.1) 100%
    );
    opacity: 1;
    animation: glitchOverlay 300ms steps(3) forwards;
}

@keyframes glitchOverlay {
    0% { transform: translateX(0); opacity: 0.8; }
    33% { transform: translateX(-4px); opacity: 0.5; }
    66% { transform: translateX(3px); opacity: 0.7; }
    100% { transform: translateX(0); opacity: 0; }
}

/* Block displacement sub-effect */
.glitch-active::after {
    content: '';
    position: absolute;
    top: 30%;
    left: 0;
    width: 100%;
    height: 8px;
    background: rgba(212, 136, 60, 0.15);
    transform: translateX(6px);
    opacity: 0;
    animation: blockDisplace 150ms ease-out 100ms forwards;
    pointer-events: none;
    z-index: 11;
}

@keyframes blockDisplace {
    0% { opacity: 0.6; transform: translateX(6px); }
    50% { opacity: 0.3; transform: translateX(-4px); }
    100% { opacity: 0; transform: translateX(0); }
}

/* ============================================================
   TOPOGRAPHIC CONTOUR LINES (background texture)
   ============================================================ */
.chamber-1 .chamber-bg::before,
.chamber-2 .chamber-bg::before,
.chamber-3 .chamber-bg::before,
.chamber-4 .chamber-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 30% 40%, transparent 30%, rgba(212, 136, 60, 0.02) 30.5%, transparent 31%),
        radial-gradient(ellipse at 30% 40%, transparent 45%, rgba(212, 136, 60, 0.015) 45.5%, transparent 46%),
        radial-gradient(ellipse at 30% 40%, transparent 60%, rgba(212, 136, 60, 0.012) 60.5%, transparent 61%),
        radial-gradient(ellipse at 70% 60%, transparent 25%, rgba(212, 136, 60, 0.02) 25.5%, transparent 26%),
        radial-gradient(ellipse at 70% 60%, transparent 40%, rgba(212, 136, 60, 0.015) 40.5%, transparent 41%),
        radial-gradient(ellipse at 70% 60%, transparent 55%, rgba(212, 136, 60, 0.012) 55.5%, transparent 56%);
    pointer-events: none;
    z-index: 0;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .chamber {
        grid-template-columns: 1fr;
        padding: clamp(1.5rem, 4vw, 3rem);
    }

    .chamber-1 .panel-mid-1 {
        grid-column: 1;
        min-height: 50vh;
        transform: rotate(-1deg) scale(0.96);
    }
    .chamber-1 .panel-mid-1.revealed {
        transform: rotate(-1deg) scale(1);
    }

    .chamber-1 .panel-hero {
        grid-column: 1;
        transform: rotate(0.5deg) scale(0.96);
    }
    .chamber-1 .panel-hero.revealed {
        transform: rotate(0.5deg) scale(1);
    }

    .chamber-1 .panel-accent-1 {
        grid-column: 1;
        margin-bottom: 10vh;
    }

    .chamber-2 .panel-strat-bg {
        grid-column: 1;
        grid-row: auto;
        display: none;
    }

    .chamber-2 .panel-strat-1,
    .chamber-2 .panel-strat-2,
    .chamber-2 .panel-strat-3 {
        grid-column: 1;
        grid-row: auto;
        margin-left: 0;
        margin-top: 1.5rem;
        transform: rotate(0) scale(0.96);
    }
    .chamber-2 .panel-strat-1.revealed,
    .chamber-2 .panel-strat-2.revealed,
    .chamber-2 .panel-strat-3.revealed {
        transform: rotate(0) scale(1);
    }

    .chamber-3 {
        min-height: auto;
    }

    .chamber-3 .panel-analysis-bg {
        display: none;
    }

    .chamber-3 .panel-analysis-1,
    .chamber-3 .panel-analysis-2,
    .chamber-3 .panel-analysis-3,
    .chamber-3 .panel-analysis-4 {
        grid-column: 1;
        grid-row: auto;
        margin-top: 1.5rem;
        margin-left: 0;
        transform: rotate(0) scale(0.96);
    }
    .chamber-3 .panel-analysis-1.revealed,
    .chamber-3 .panel-analysis-2.revealed,
    .chamber-3 .panel-analysis-3.revealed,
    .chamber-3 .panel-analysis-4.revealed {
        transform: rotate(0) scale(1);
    }

    .chamber-4 .panel-pattern {
        grid-column: 1;
    }

    .chamber-5 .panel-final {
        grid-column: 1;
    }
}