/* ============================================
   continu.ax - Fairycore Cartographic Atlas
   Horizontal Scroll Narrative
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    --parchment: #F5EDE3;
    --deep-loam: #2C1E14;
    --deep-umber: #3D2E1F;
    --warm-stone: #6B5B4E;
    --terracotta: #C2703E;
    --dusty-rose: #D4A08C;
    --gilded-ochre: #D4A44C;
    --alpine-mist: #E8DFD4;
    --basalt: #1A120B;
    --topo-line: #B8977E;

    --font-display: 'Schibsted Grotesk', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --font-accent: 'Cormorant Garamond', serif;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: var(--parchment);
    color: var(--deep-umber);
}

/* --- Scroll Container --- */
.scroll-container {
    width: 100vw;
    height: 100vh;
    overflow-x: scroll;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.scroll-container::-webkit-scrollbar {
    display: none;
}

.horizontal-track {
    display: flex;
    flex-direction: row;
    height: 100vh;
    touch-action: pan-x;
}

/* --- Panels --- */
.panel {
    flex: 0 0 100vw;
    width: 100vw;
    height: 100vh;
    scroll-snap-align: start;
    position: relative;
    overflow: hidden;
}

.panel-light {
    background: var(--parchment);
}

.panel-dark {
    background: var(--deep-loam);
}

.panel-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* --- Topographic Line Texture (Panels 2, 4, 7) --- */
.panel-topo::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse 700px 700px at 25% 35%, transparent 42%, rgba(184, 151, 126, 0.08) 42.3%, transparent 42.6%),
        radial-gradient(ellipse 620px 620px at 25% 35%, transparent 47%, rgba(184, 151, 126, 0.06) 47.3%, transparent 47.6%),
        radial-gradient(ellipse 540px 540px at 25% 35%, transparent 52%, rgba(184, 151, 126, 0.08) 52.3%, transparent 52.6%),
        radial-gradient(ellipse 460px 460px at 25% 35%, transparent 57%, rgba(184, 151, 126, 0.06) 57.3%, transparent 57.6%),
        radial-gradient(ellipse 380px 380px at 25% 35%, transparent 62%, rgba(184, 151, 126, 0.07) 62.3%, transparent 62.6%),
        radial-gradient(ellipse 300px 300px at 25% 35%, transparent 67%, rgba(184, 151, 126, 0.06) 67.3%, transparent 67.6%),
        radial-gradient(ellipse 800px 600px at 72% 62%, transparent 38%, rgba(184, 151, 126, 0.07) 38.3%, transparent 38.6%),
        radial-gradient(ellipse 680px 520px at 72% 62%, transparent 44%, rgba(184, 151, 126, 0.06) 44.3%, transparent 44.6%),
        radial-gradient(ellipse 560px 440px at 72% 62%, transparent 50%, rgba(184, 151, 126, 0.08) 50.3%, transparent 50.6%),
        radial-gradient(ellipse 440px 360px at 72% 62%, transparent 56%, rgba(184, 151, 126, 0.06) 56.3%, transparent 56.6%),
        radial-gradient(ellipse 320px 280px at 72% 62%, transparent 62%, rgba(184, 151, 126, 0.07) 62.3%, transparent 62.6%),
        radial-gradient(ellipse 500px 400px at 50% 80%, transparent 45%, rgba(184, 151, 126, 0.05) 45.3%, transparent 45.6%),
        radial-gradient(ellipse 400px 320px at 50% 80%, transparent 52%, rgba(184, 151, 126, 0.06) 52.3%, transparent 52.6%);
    pointer-events: none;
    z-index: 1;
}

/* --- Ravine Gaps --- */
.ravine-gap {
    flex: 0 0 40px;
    width: 40px;
    height: 100vh;
    background: var(--alpine-mist);
    position: relative;
    overflow: hidden;
}

.ravine-gap::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 18px,
        rgba(184, 151, 126, 0.15) 18px,
        rgba(184, 151, 126, 0.15) 19px
    );
}

/* --- Panel Atmosphere (upper 60%) --- */
.panel-atmosphere {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 60%;
    z-index: 2;
    pointer-events: none;
}

/* --- Panel Bedrock (lower 40%) --- */
.panel-bedrock {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40%;
    z-index: 3;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 8vw;
    gap: 16px;
}

.panel-bedrock-dark {
    padding: 0 8vw;
}

.panel-bedrock-columns {
    flex-direction: row;
    gap: 48px;
    padding: 0 8vw;
}

.panel-bedrock-center {
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 100%;
    bottom: auto;
    top: 0;
}

.panel-bedrock-right {
    left: auto;
    right: 0;
    width: 36%;
    height: 100%;
    bottom: auto;
    top: 0;
    padding: 0 5vw;
}

.panel-bedrock-center-right {
    left: auto;
    right: 0;
    width: 50%;
    height: 100%;
    bottom: auto;
    top: 0;
    justify-content: center;
    align-items: center;
    text-align: center;
}

/* --- Typography --- */
.title-display {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(3.5rem, 5vw, 5rem);
    letter-spacing: -0.02em;
    color: var(--deep-umber);
    line-height: 1.05;
}

.title-terminus {
    color: var(--terracotta);
}

.heading-display {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2.5rem, 4vw, 4rem);
    letter-spacing: -0.02em;
    color: var(--deep-umber);
    line-height: 1.1;
}

.heading-light {
    color: var(--parchment);
}

.subheading {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: clamp(1.4rem, 2vw, 1.75rem);
    letter-spacing: 0em;
    color: var(--deep-umber);
    line-height: 1.2;
    margin-bottom: 8px;
}

.body-text {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(0.9rem, 1.1vw, 1.125rem);
    line-height: 1.65;
    color: var(--warm-stone);
    max-width: 52ch;
}

.body-text-light {
    color: var(--alpine-mist);
}

.caption-accent {
    font-family: var(--font-accent);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(1rem, 1.3vw, 1.25rem);
    color: var(--terracotta);
    margin-top: 8px;
}

.caption-terminus {
    font-size: clamp(1.1rem, 1.5vw, 1.4rem);
}

.pullquote {
    font-family: var(--font-accent);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(1.5rem, 2.6vw, 2.5rem);
    color: var(--parchment);
    line-height: 1.5;
    max-width: 64ch;
    text-align: center;
    padding: 0 4vw;
}

/* --- Survey Columns --- */
.survey-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* --- Strata Blocks --- */
.strata-block {
    margin-bottom: 4px;
}

/* --- Geometric Divider --- */
.geometric-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 24px;
    position: relative;
    margin: 8px 0;
}

.geometric-divider::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    height: 1px;
    background: var(--terracotta);
}

.geometric-divider::after {
    content: '';
    position: relative;
    z-index: 1;
    width: 12px;
    height: 12px;
    background: var(--gilded-ochre);
    transform: rotate(45deg);
    border: none;
    flex-shrink: 0;
    box-shadow:
        -20px 0 0 -3px var(--dusty-rose),
        20px 0 0 -3px var(--dusty-rose);
}

/* --- Mountain Forms --- */

/* Background Mountains (light, atmospheric) - Origin Panel */
.mountain-bg {
    position: absolute;
    bottom: 20%;
    z-index: 1;
}

.mountain-bg-1 {
    left: 5%;
    width: 0;
    height: 0;
    border-left: 100px solid transparent;
    border-right: 80px solid transparent;
    border-bottom: 200px solid var(--alpine-mist);
    opacity: 0.5;
    bottom: 28%;
}

.mountain-bg-2 {
    left: 20%;
    width: 0;
    height: 0;
    border-left: 160px solid transparent;
    border-right: 140px solid transparent;
    border-bottom: 320px solid var(--dusty-rose);
    opacity: 0.35;
    bottom: 20%;
}

.mountain-bg-3 {
    left: 42%;
    width: 0;
    height: 0;
    border-left: 130px solid transparent;
    border-right: 110px solid transparent;
    border-bottom: 280px solid var(--terracotta);
    opacity: 0.2;
    bottom: 24%;
}

.mountain-bg-4 {
    right: 20%;
    width: 0;
    height: 0;
    border-left: 100px solid transparent;
    border-right: 130px solid transparent;
    border-bottom: 250px solid var(--alpine-mist);
    opacity: 0.45;
    bottom: 22%;
}

.mountain-bg-5 {
    right: 5%;
    width: 0;
    height: 0;
    border-left: 90px solid transparent;
    border-right: 70px solid transparent;
    border-bottom: 180px solid var(--warm-stone);
    opacity: 0.15;
    bottom: 30%;
}

/* Terminus mountains (lower, converging to plateau) */
.mountain-bg-terminus-1 {
    left: 3%;
    width: 0;
    height: 0;
    border-left: 140px solid transparent;
    border-right: 120px solid transparent;
    border-bottom: 140px solid var(--alpine-mist);
    opacity: 0.4;
    bottom: 32%;
}

.mountain-bg-terminus-2 {
    left: 25%;
    width: 0;
    height: 0;
    border-left: 100px solid transparent;
    border-right: 110px solid transparent;
    border-bottom: 110px solid var(--dusty-rose);
    opacity: 0.3;
    bottom: 34%;
}

.mountain-bg-terminus-3 {
    left: 45%;
    width: 0;
    height: 0;
    border-left: 80px solid transparent;
    border-right: 90px solid transparent;
    border-bottom: 90px solid var(--alpine-mist);
    opacity: 0.35;
    bottom: 36%;
}

.mountain-bg-terminus-4 {
    left: 60%;
    width: 0;
    height: 0;
    border-left: 70px solid transparent;
    border-right: 80px solid transparent;
    border-bottom: 75px solid var(--warm-stone);
    opacity: 0.2;
    bottom: 38%;
}

/* Foreground Mountains (Panel 2 - Strata) */
.mountain-fg {
    position: absolute;
    z-index: 0;
}

.mountain-fg-left {
    left: -5%;
    bottom: 0;
    width: 0;
    height: 0;
    border-left: 180px solid transparent;
    border-right: 140px solid transparent;
    border-bottom: 380px solid var(--deep-umber);
    opacity: 0.12;
}

.mountain-fg-left-2 {
    left: 3%;
    bottom: 0;
    width: 0;
    height: 0;
    border-left: 120px solid transparent;
    border-right: 160px solid transparent;
    border-bottom: 300px solid var(--warm-stone);
    opacity: 0.08;
}

/* Center Mountain Form (Panel 3 - Fault Line) */
.mountain-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60vw;
    height: 70vh;
    z-index: 2;
}

.mountain-form-large {
    position: relative;
    width: 100%;
    height: 100%;
}

.mountain-layer {
    position: absolute;
    bottom: 0;
}

.ml-1 {
    left: 10%;
    width: 0;
    height: 0;
    border-left: 18vw solid transparent;
    border-right: 14vw solid transparent;
    border-bottom: 55vh solid var(--terracotta);
    opacity: 0.8;
}

.ml-2 {
    left: 25%;
    width: 0;
    height: 0;
    border-left: 14vw solid transparent;
    border-right: 16vw solid transparent;
    border-bottom: 48vh solid var(--dusty-rose);
    opacity: 0.7;
}

.ml-3 {
    left: 5%;
    width: 0;
    height: 0;
    border-left: 12vw solid transparent;
    border-right: 10vw solid transparent;
    border-bottom: 40vh solid var(--warm-stone);
    opacity: 0.6;
}

.ml-4 {
    left: 35%;
    width: 0;
    height: 0;
    border-left: 10vw solid transparent;
    border-right: 12vw solid transparent;
    border-bottom: 35vh solid var(--alpine-mist);
    opacity: 0.4;
}

.ml-5 {
    left: 0;
    width: 0;
    height: 0;
    border-left: 20vw solid transparent;
    border-right: 15vw solid transparent;
    border-bottom: 60vh solid var(--deep-umber);
    opacity: 0.25;
}

/* Ridge Mountains (Panel 5 - full bleed) */
.mountain-fullbleed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.ridge-mountain {
    position: absolute;
    bottom: 0;
}

.ridge-m1 {
    left: 0;
    width: 0;
    height: 0;
    border-left: 14vw solid transparent;
    border-right: 10vw solid transparent;
    border-bottom: 90vh solid var(--deep-umber);
    opacity: 0.12;
}

.ridge-m2 {
    left: 8%;
    width: 0;
    height: 0;
    border-left: 12vw solid transparent;
    border-right: 14vw solid transparent;
    border-bottom: 80vh solid var(--terracotta);
    opacity: 0.2;
}

.ridge-m3 {
    left: 18%;
    width: 0;
    height: 0;
    border-left: 10vw solid transparent;
    border-right: 12vw solid transparent;
    border-bottom: 95vh solid var(--dusty-rose);
    opacity: 0.25;
}

.ridge-m4 {
    left: 28%;
    width: 0;
    height: 0;
    border-left: 16vw solid transparent;
    border-right: 10vw solid transparent;
    border-bottom: 70vh solid var(--warm-stone);
    opacity: 0.18;
}

.ridge-m5 {
    left: 38%;
    width: 0;
    height: 0;
    border-left: 8vw solid transparent;
    border-right: 12vw solid transparent;
    border-bottom: 85vh solid var(--alpine-mist);
    opacity: 0.3;
}

.ridge-m6 {
    left: 12%;
    width: 0;
    height: 0;
    border-left: 18vw solid transparent;
    border-right: 8vw solid transparent;
    border-bottom: 60vh solid var(--terracotta);
    opacity: 0.15;
}

.ridge-m7 {
    left: 5%;
    width: 0;
    height: 0;
    border-left: 6vw solid transparent;
    border-right: 14vw solid transparent;
    border-bottom: 75vh solid var(--deep-umber);
    opacity: 0.08;
}

.ridge-m8 {
    left: 22%;
    width: 0;
    height: 0;
    border-left: 14vw solid transparent;
    border-right: 6vw solid transparent;
    border-bottom: 65vh solid var(--alpine-mist);
    opacity: 0.12;
}

/* Midground Mountains (Panel 6 - Depth - ghostly silhouettes) */
.mountain-midground {
    position: absolute;
    bottom: 10%;
    z-index: 1;
}

.mountain-mid-1 {
    left: 5%;
    width: 0;
    height: 0;
    border-left: 14vw solid transparent;
    border-right: 12vw solid transparent;
    border-bottom: 45vh solid var(--dusty-rose);
    opacity: 0.2;
}

.mountain-mid-2 {
    left: 28%;
    width: 0;
    height: 0;
    border-left: 10vw solid transparent;
    border-right: 14vw solid transparent;
    border-bottom: 38vh solid var(--dusty-rose);
    opacity: 0.15;
}

.mountain-mid-3 {
    right: 15%;
    width: 0;
    height: 0;
    border-left: 12vw solid transparent;
    border-right: 10vw solid transparent;
    border-bottom: 42vh solid var(--dusty-rose);
    opacity: 0.18;
}

.mountain-mid-4 {
    right: 2%;
    width: 0;
    height: 0;
    border-left: 8vw solid transparent;
    border-right: 10vw solid transparent;
    border-bottom: 32vh solid var(--dusty-rose);
    opacity: 0.12;
}

/* --- Fairycore Sigils --- */
.sigil {
    position: absolute;
    width: 32px;
    height: 32px;
    opacity: 0.6;
    pointer-events: all;
    z-index: 10;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.4s ease,
                box-shadow 0.4s ease;
    cursor: default;
}

.sigil:hover {
    transform: scale(1.3);
    opacity: 1;
    box-shadow: 0 0 20px rgba(212, 164, 76, 0.25);
    animation-duration: 15s;
}

/* Hexagon Sigil */
.sigil-hex {
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background: transparent;
    border: none;
    animation: sigil-rotate 30s linear infinite;
}

.sigil-hex::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    background: transparent;
    box-shadow: inset 0 0 0 1.5px var(--gilded-ochre);
}

.sigil-hex:hover {
    box-shadow: 0 0 20px rgba(212, 164, 76, 0.25);
}

/* Diamond Sigil */
.sigil-diamond {
    width: 28px;
    height: 28px;
    background: transparent;
    border: 1.5px solid var(--gilded-ochre);
    transform: rotate(45deg);
    animation: sigil-rotate-diamond 30s linear infinite;
}

.sigil-diamond:hover {
    transform: rotate(45deg) scale(1.3);
    border-color: var(--terracotta);
    opacity: 1;
}

/* Circle-within-circle Sigil */
.sigil-circle {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: transparent;
    border: 1.5px solid var(--gilded-ochre);
    animation: sigil-rotate 30s linear infinite;
}

.sigil-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid var(--gilded-ochre);
    transform: translate(-50%, -50%);
}

.sigil-circle:hover {
    border-color: var(--terracotta);
    opacity: 1;
}

.sigil-circle:hover::before {
    border-color: var(--terracotta);
}

/* Six-pointed Star Sigil */
.sigil-star {
    width: 36px;
    height: 36px;
    background: transparent;
    animation: sigil-rotate 30s linear infinite;
}

.sigil-star::before,
.sigil-star::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
}

.sigil-star::before {
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 18px solid var(--gilded-ochre);
    transform: translate(-50%, -70%);
    opacity: 0.6;
}

.sigil-star::after {
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 18px solid var(--gilded-ochre);
    transform: translate(-50%, -30%);
    opacity: 0.6;
}

.sigil-star:hover::before,
.sigil-star:hover::after {
    opacity: 1;
    border-bottom-color: var(--terracotta);
    border-top-color: var(--terracotta);
}

/* Sigil Positions */
#sigil-origin { top: 15%; left: 45%; width: 40px; height: 40px; }
#sigil-strata-1 { top: 20%; right: 20%; }
#sigil-strata-2 { top: 35%; left: 60%; }
#sigil-fault { top: 12%; right: 25%; width: 38px; height: 38px; }
#sigil-survey-1 { top: 10%; left: 30%; }
#sigil-survey-2 { top: 25%; right: 15%; }
#sigil-survey-3 { top: 40%; left: 55%; }
#sigil-ridge-1 { top: 8%; left: 20%; width: 36px; height: 36px; }
#sigil-ridge-2 { top: 22%; left: 40%; }
#sigil-meridian { top: 18%; right: 30%; }
#sigil-meridian-2 { top: 32%; left: 25%; }
#sigil-terminus-1 { top: 12%; left: 25%; }
#sigil-terminus-2 { top: 28%; left: 45%; width: 38px; height: 38px; }

/* --- Sigil Animations --- */
@keyframes sigil-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes sigil-rotate-diamond {
    from { transform: rotate(45deg); }
    to { transform: rotate(405deg); }
}

/* --- Progress Bar (Navigation Spine) --- */
.progress-bar {
    position: fixed;
    bottom: 32px;
    left: 5vw;
    right: 5vw;
    height: 3px;
    z-index: 100;
}

.progress-track {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--parchment);
    border-radius: 2px;
    box-shadow: 0 0 0 1px rgba(184, 151, 126, 0.2);
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--terracotta);
    border-radius: 2px;
    width: 0%;
    transition: width 0.3s ease;
}

.progress-diamond {
    position: absolute;
    top: 50%;
    width: 8px;
    height: 8px;
    background: var(--parchment);
    border: 1.5px solid var(--warm-stone);
    transform: translate(-50%, -50%) rotate(45deg);
    cursor: pointer;
    z-index: 2;
    transition: transform 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
}

.progress-diamond.active {
    background: var(--gilded-ochre);
    border-color: var(--gilded-ochre);
    animation: diamond-pulse 2.4s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.progress-diamond::after {
    content: attr(data-label);
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%) rotate(-45deg);
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--warm-stone);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.progress-diamond:hover::after {
    opacity: 1;
}

.progress-diamond:hover {
    border-color: var(--terracotta);
    background: var(--dusty-rose);
}

/* Position diamonds evenly across the progress track */
.progress-diamond[data-panel="0"] { left: 0%; }
.progress-diamond[data-panel="1"] { left: 14.28%; }
.progress-diamond[data-panel="2"] { left: 28.57%; }
.progress-diamond[data-panel="3"] { left: 42.85%; }
.progress-diamond[data-panel="4"] { left: 57.14%; }
.progress-diamond[data-panel="5"] { left: 71.42%; }
.progress-diamond[data-panel="6"] { left: 85.71%; }
.progress-diamond[data-panel="7"] { left: 100%; }

@keyframes diamond-pulse {
    0%, 100% { transform: translate(-50%, -50%) rotate(45deg) scale(1); }
    50% { transform: translate(-50%, -50%) rotate(45deg) scale(1.4); }
}

/* --- Zoom-Focus Animation States --- */
.panel .zoom-target {
    transform: scale(0.92);
    opacity: 0.4;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.panel .zoom-target-secondary {
    transform: scale(0.92);
    opacity: 0.4;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s,
                opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s;
}

.panel.in-view .zoom-target,
.panel.in-view .zoom-target-secondary {
    transform: scale(1);
    opacity: 1;
}

/* Mountain zoom-focus (surveyor's lens effect) */
.panel .mountain-zoom {
    transform: scale(0.85);
    filter: blur(2px);
    opacity: 0.4;
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1),
                filter 1.2s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.panel.in-view .mountain-zoom {
    transform: scale(1);
    filter: blur(0px);
    opacity: 1;
}

/* Origin panel mountain fade-in (1.8s) */
#panel-origin .mountain-bg {
    opacity: 0;
    transition: opacity 1.8s ease;
}

#panel-origin.in-view .mountain-bg-1 { opacity: 0.5; }
#panel-origin.in-view .mountain-bg-2 { opacity: 0.35; }
#panel-origin.in-view .mountain-bg-3 { opacity: 0.2; }
#panel-origin.in-view .mountain-bg-4 { opacity: 0.45; }
#panel-origin.in-view .mountain-bg-5 { opacity: 0.15; }