/* ==========================================================================
   INTELLIGENT ASTRONOMICAL CITY-VIEW WEBSITE LOADER
   Rupak Biswas - Senior UX Designer Portfolio
   - 100vw × 100vh Full-screen living vector city environment
   - Real-time astronomical sky: Solar elevation, Lunar phase & NASA eclipse
   - Foreground street, sidewalk, streetlights, trees, traffic & architecture
   - 3-Layer parallax clouds, daytime flocking birds, night stars
   - Responsive recomposition (Desktop, Tablet, Mobile)
   - Seamless cinematic camera transition into portfolio (Light / Dark mode)
   ========================================================================== */

/* Fast instant-skip for repeat visits */
html.skip-loader-instant #astro-city-loader {
    display: none !important;
}

#astro-city-loader {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: 999999;
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
    perspective: 1200px;
    background-color: #080811;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.6s ease;
}

body.astro-loader-active {
    overflow: hidden !important;
    height: 100vh !important;
}

/* --------------------------------------------------------------------------
   Top HUD Bar & Telemetry Controls
   -------------------------------------------------------------------------- */
.astro-top-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    gap: 1rem;
    flex-wrap: wrap;
    pointer-events: none;
}

.astro-telemetry-badge {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    background: rgba(13, 13, 18, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #F5F5F5;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    transition: all 0.3s ease;
}

.astro-status-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #6D4AFF;
    box-shadow: 0 0 12px rgba(109, 74, 255, 0.8);
    animation: astroPulse 1.4s ease-in-out infinite alternate;
}

@keyframes astroPulse {
    0% { transform: scale(0.85); opacity: 0.6; }
    100% { transform: scale(1.25); opacity: 1; }
}

.astro-city-label {
    font-weight: 700;
    text-transform: uppercase;
    color: #FFFFFF;
}

.astro-phase-tag {
    font-size: 0.625rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    background: rgba(109, 74, 255, 0.25);
    border: 1px solid rgba(109, 74, 255, 0.5);
    color: #C9B8FF;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* Top Right Actions */
.astro-actions {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.astro-debug-toggle-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 0.45rem 0.95rem;
    border-radius: 9999px;
    cursor: pointer;
    background: rgba(21, 21, 28, 0.8);
    border: 1px solid rgba(139, 117, 255, 0.4);
    color: #C9B8FF;
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.2s ease;
}

.astro-debug-toggle-btn:hover {
    background: rgba(109, 74, 255, 0.2);
    border-color: #8B75FF;
    color: #FFFFFF;
    transform: translateY(-1px);
}

.astro-skip-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 0.45rem 1.1rem;
    border-radius: 9999px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #171717;
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.2s ease;
}

.astro-skip-btn:hover {
    background: #FFFFFF;
    color: #6D4AFF;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(109, 74, 255, 0.25);
}

/* --------------------------------------------------------------------------
   Full-Screen Viewport Stage & Camera Dolly
   -------------------------------------------------------------------------- */
.city-viewport-stage {
    position: absolute;
    inset: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    transform-origin: 50% 75%;
    will-change: transform, opacity;
    transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s ease;
}

/* Transition to portfolio: Forward cinematic camera dolly */
.city-camera-dolly-out {
    transform: scale(2.4) translateY(-8%);
    opacity: 0;
}

/* --------------------------------------------------------------------------
   Atmospheric Sky Layer (Continuous Astronomical Gradients)
   -------------------------------------------------------------------------- */
.city-sky-backdrop {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    transition: background 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Sky Themes based on Solar Elevation & Twilight */
.sky-night {
    background: linear-gradient(180deg, #05050C 0%, #0D0E1A 50%, #17182E 85%, #241D38 100%);
}

.sky-astronomical-twilight {
    background: linear-gradient(180deg, #090B19 0%, #13172E 45%, #231C42 80%, #352554 100%);
}

.sky-nautical-dawn, .sky-nautical-dusk {
    background: linear-gradient(180deg, #101633 0%, #201D48 45%, #462557 75%, #6B345E 100%);
}

.sky-civil-dawn, .sky-civil-dusk {
    background: linear-gradient(180deg, #1A2352 0%, #3E2B63 40%, #7E3E64 70%, #B8585D 90%, #E88358 100%);
}

.sky-sunrise, .sky-sunset {
    background: linear-gradient(180deg, #27376D 0%, #5C3D6D 35%, #A8495E 65%, #DE6849 85%, #F7A855 100%);
}

.sky-daylight {
    background: linear-gradient(180deg, #3D82C4 0%, #5DA3DC 35%, #88C4EE 70%, #C3E2F8 90%, #EAF5FC 100%);
}

.sky-solar-noon {
    background: linear-gradient(180deg, #2E78C2 0%, #519DE0 35%, #82C2F0 70%, #C8E5FA 90%, #F5FBFF 100%);
}

/* Solar Eclipse Sky State */
.sky-solar-eclipse {
    background: linear-gradient(180deg, #04050A 0%, #0F111D 40%, #1F192E 75%, #382436 100%) !important;
}

/* Lunar Eclipse Sky State */
.sky-lunar-eclipse {
    background: linear-gradient(180deg, #070409 0%, #140C18 50%, #251220 85%, #3B1A24 100%) !important;
}

/* --------------------------------------------------------------------------
   Celestial Sphere: Sun, Moon, Stars
   -------------------------------------------------------------------------- */
.city-celestial-canvas {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
}

/* Night Stars */
.celestial-stars-layer {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1.5s ease;
}

.sky-night .celestial-stars-layer,
.sky-astronomical-twilight .celestial-stars-layer,
.sky-nautical-dawn .celestial-stars-layer,
.sky-nautical-dusk .celestial-stars-layer,
.sky-solar-eclipse .celestial-stars-layer,
.sky-lunar-eclipse .celestial-stars-layer {
    opacity: 1;
}

.city-star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #FFFFFF;
    border-radius: 50%;
    animation: starPulse 2.5s infinite alternate ease-in-out;
}

@keyframes starPulse {
    0% { opacity: 0.2; transform: scale(0.7); }
    100% { opacity: 1; transform: scale(1.3); }
}

/* Sun Body */
.celestial-sun-body {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #FFF5D0;
    box-shadow: 
        0 0 35px rgba(255, 235, 150, 0.8),
        0 0 80px rgba(255, 195, 80, 0.45),
        0 0 160px rgba(255, 170, 50, 0.2);
    transform: translate(-50%, -50%);
    will-change: left, top, opacity;
    transition: left 0.8s ease, top 0.8s ease, opacity 0.8s ease;
}

/* Sun Rays / Atmospheric Flare */
.celestial-sun-corona {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.35) 0%, rgba(255, 235, 170, 0.15) 50%, transparent 70%);
}

/* Total Solar Eclipse Corona Ring */
.solar-eclipse-active .celestial-sun-body {
    background: #0D0D12 !important;
    box-shadow: 
        0 0 20px rgba(255, 255, 255, 0.9),
        0 0 50px rgba(180, 200, 255, 0.6),
        0 0 100px rgba(109, 74, 255, 0.4) !important;
}

/* Moon Body & Precise Mathematical Vector SVG Phase */
.celestial-moon-body {
    position: absolute;
    width: 56px;
    height: 56px;
    transform: translate(-50%, -50%);
    will-change: left, top, opacity;
    transition: left 0.8s ease, top 0.8s ease, opacity 0.8s ease;
    filter: drop-shadow(0 0 16px rgba(240, 240, 255, 0.45)) drop-shadow(0 0 45px rgba(139, 117, 255, 0.25));
}

#moon-svg {
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
}

#moon-lit-path {
    transition: d 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), fill 0.4s ease;
}

/* Total Lunar Eclipse Blood Moon */
.lunar-eclipse-active .celestial-moon-body {
    filter: drop-shadow(0 0 25px rgba(230, 70, 50, 0.8)) drop-shadow(0 0 60px rgba(180, 40, 30, 0.5)) !important;
}

.lunar-eclipse-active #moon-lit-path {
    fill: #D63031 !important;
}

/* --------------------------------------------------------------------------
   3-Layer Parallax Clouds System
   -------------------------------------------------------------------------- */
.city-clouds-layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.clouds-bg { z-index: 3; opacity: 0.65; }
.clouds-mid { z-index: 5; opacity: 0.8; }
.clouds-fg { z-index: 8; opacity: 0.95; }

.cloud-cluster {
    position: absolute;
    display: flex;
    align-items: center;
    will-change: transform;
}

.cloud-bubble {
    background: rgba(255, 255, 255, 0.75);
    border-radius: 50%;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}

/* Night cloud tint */
.sky-night .cloud-bubble,
.sky-astronomical-twilight .cloud-bubble {
    background: rgba(36, 38, 56, 0.55);
    box-shadow: none;
}

/* Parallax Cloud Drifts */
.cloud-drift-slow {
    animation: cloudDrift 95s linear infinite;
}

.cloud-drift-medium {
    animation: cloudDrift 60s linear infinite;
}

.cloud-drift-fast {
    animation: cloudDrift 38s linear infinite;
}

@keyframes cloudDrift {
    0% { transform: translateX(-35vw); }
    100% { transform: translateX(115vw); }
}

/* --------------------------------------------------------------------------
   Daytime Birds Flocking System
   -------------------------------------------------------------------------- */
.city-birds-flock {
    position: absolute;
    top: 20%;
    left: -10vw;
    z-index: 6;
    pointer-events: none;
    opacity: 0;
    transition: opacity 1s ease;
}

.sky-daylight .city-birds-flock,
.sky-solar-noon .city-birds-flock,
.sky-sunrise .city-birds-flock,
.sky-civil-dawn .city-birds-flock {
    opacity: 1;
}

.bird-flight-path {
    animation: birdFlight 24s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes birdFlight {
    0% { transform: translate(-10vw, 40px) scale(0.7); }
    50% { transform: translate(60vw, -30px) scale(0.9); }
    100% { transform: translate(115vw, 20px) scale(1.1); }
}

.bird-wing-flap {
    display: inline-block;
    animation: birdWing 0.45s ease-in-out infinite alternate;
}

@keyframes birdWing {
    0% { transform: scaleY(0.7) rotate(-10deg); }
    100% { transform: scaleY(1.3) rotate(10deg); }
}

/* --------------------------------------------------------------------------
   Vector Architecture Skyline (Background, Midground, Hero Towers)
   -------------------------------------------------------------------------- */
.city-skyline-container {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 75%;
    z-index: 10;
    pointer-events: none;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

/* Background Skyline (Silhouettes) */
.skyline-layer-bg {
    position: absolute;
    bottom: 18%;
    left: 0;
    right: 0;
    width: 100%;
    height: 60%;
    z-index: 11;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 0 2vw;
    opacity: 0.55;
    filter: blur(0.5px);
}

.bg-tower {
    background: #181E38;
    border-radius: 4px 4px 0 0;
    position: relative;
    transition: background 1.2s ease;
}

.sky-daylight .bg-tower,
.sky-solar-noon .bg-tower {
    background: #9DBFD8;
}

.sky-sunrise .bg-tower,
.sky-sunset .bg-tower {
    background: #734563;
}

/* Midground Modern Towers & Architecture */
.skyline-layer-mid {
    position: absolute;
    bottom: 12%;
    left: 0;
    right: 0;
    width: 100%;
    height: 70%;
    z-index: 14;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 1.5vw;
}

.mid-building {
    background: #151829;
    border-radius: 6px 6px 0 0;
    border-top: 2px solid rgba(255, 255, 255, 0.15);
    position: relative;
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.35);
    transition: background 1.2s ease, border-color 1.2s ease;
}

.sky-daylight .mid-building,
.sky-solar-noon .mid-building {
    background: #DEE8F0;
    border-top-color: #FFFFFF;
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.08);
}

.sky-sunrise .mid-building,
.sky-sunset .mid-building {
    background: #87516F;
    border-top-color: #FFB085;
}

/* Antenna with Red Blinking Aviation Light */
.tower-spire-antenna {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 38px;
    background: #888899;
}

.aviation-blinker {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #FF3344;
    box-shadow: 0 0 10px #FF3344;
    animation: aviationBlink 1.2s infinite steps(1);
}

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

/* Glowing Window Matrices */
.window-grid {
    display: grid;
    gap: 4px;
    padding: 8px 6px;
    width: 100%;
}

.city-window {
    height: 6px;
    border-radius: 1px;
    background: rgba(255, 255, 255, 0.06);
    transition: background 0.8s ease, box-shadow 0.8s ease;
}

/* Daytime Windows: Subtle Glass Reflection */
.sky-daylight .city-window,
.sky-solar-noon .city-window {
    background: #BED1E2;
}

/* Nighttime Windows: Warm Illuminations */
.sky-night .city-window.lit-warm,
.sky-astronomical-twilight .city-window.lit-warm,
.sky-nautical-dusk .city-window.lit-warm,
.sky-solar-eclipse .city-window.lit-warm {
    background: #FFEAA7;
    box-shadow: 0 0 8px rgba(255, 234, 167, 0.8);
}

.sky-night .city-window.lit-violet,
.sky-astronomical-twilight .city-window.lit-violet {
    background: #C9B8FF;
    box-shadow: 0 0 8px rgba(201, 184, 255, 0.8);
}

/* --------------------------------------------------------------------------
   Foreground Street, Sidewalk, Streetlights & Traffic
   -------------------------------------------------------------------------- */
.city-foreground-street {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 18%;
    z-index: 20;
    background: #10121C;
    border-top: 3px solid #282C40;
    transition: background 1.2s ease, border-color 1.2s ease;
}

.sky-daylight .city-foreground-street,
.sky-solar-noon .city-daylight .city-foreground-street {
    background: #E8E7E3;
    border-top-color: #D4D2CA;
}

/* Sidewalk & Curb */
.city-sidewalk {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 28%;
    background: #171926;
    border-bottom: 2px solid #2D3248;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4vw;
}

.sky-daylight .city-sidewalk,
.sky-solar-noon .city-sidewalk {
    background: #F2F1ED;
    border-bottom-color: #DDD9CF;
}

/* Streetlights with Nighttime Volumetric Light Beams */
.street-lamp-post {
    position: relative;
    width: 6px;
    height: 48px;
    background: #44475A;
    border-radius: 2px 2px 0 0;
    margin-top: -38px;
}

.lamp-head {
    position: absolute;
    top: -4px;
    left: -6px;
    width: 18px;
    height: 6px;
    background: #252838;
    border-radius: 3px;
}

.lamp-bulb {
    position: absolute;
    bottom: -2px;
    left: 3px;
    width: 12px;
    height: 3px;
    border-radius: 2px;
    background: #666;
    transition: background 0.8s ease, box-shadow 0.8s ease;
}

.lamp-light-cone {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    height: 80px;
    clip-path: polygon(45% 0%, 55% 0%, 100% 100%, 0% 100%);
    background: linear-gradient(180deg, rgba(255, 235, 160, 0.45) 0%, rgba(255, 235, 160, 0.02) 85%, transparent 100%);
    opacity: 0;
    pointer-events: none;
    transition: opacity 1s ease;
}

/* Streetlights turn on at Sunset / Night */
.sky-night .lamp-bulb,
.sky-civil-dusk .lamp-bulb,
.sky-nautical-dusk .lamp-bulb,
.sky-astronomical-twilight .lamp-bulb,
.sky-solar-eclipse .lamp-bulb {
    background: #FFEAA7;
    box-shadow: 0 0 16px rgba(255, 234, 167, 0.9);
}

.sky-night .lamp-light-cone,
.sky-civil-dusk .lamp-light-cone,
.sky-nautical-dusk .lamp-light-cone,
.sky-astronomical-twilight .lamp-light-cone,
.sky-solar-eclipse .lamp-light-cone {
    opacity: 1;
}

/* Urban Trees along Sidewalk */
.street-tree {
    position: relative;
    width: 32px;
    height: 52px;
    margin-top: -42px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tree-canopy {
    width: 32px;
    height: 36px;
    border-radius: 50% 50% 45% 45%;
    background: #142820;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    transition: background 1s ease;
}

.sky-daylight .tree-canopy,
.sky-solar-noon .tree-canopy {
    background: #4C8C58;
}

.tree-trunk {
    width: 4px;
    height: 16px;
    background: #3B2A1E;
    border-radius: 1px;
}

/* Road Lane & Crosswalk Markings */
.city-road-surface {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 72%;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.road-centerline-dashes {
    width: 100%;
    height: 3px;
    background: repeating-linear-gradient(
        to right,
        #444963 0px,
        #444963 28px,
        transparent 28px,
        transparent 56px
    );
}

.sky-daylight .road-centerline-dashes,
.sky-solar-noon .road-centerline-dashes {
    background: repeating-linear-gradient(
        to right,
        #FFFFFF 0px,
        #FFFFFF 28px,
        transparent 28px,
        transparent 56px
    );
}

/* Crosswalk Zebra Stripes */
.crosswalk-stripes {
    position: absolute;
    right: 15%;
    width: 80px;
    height: 100%;
    display: flex;
    justify-content: space-between;
}

.crosswalk-stripe {
    width: 8px;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
}

.sky-daylight .crosswalk-stripe,
.sky-solar-noon .crosswalk-stripe {
    background: rgba(255, 255, 255, 0.7);
}

/* Moving Traffic (Car Headlights & Taillights) */
.traffic-vehicle {
    position: absolute;
    bottom: 22%;
    display: flex;
    align-items: center;
    gap: 6px;
    will-change: transform;
}

.car-eastbound {
    animation: trafficEast 16s linear infinite;
}

.car-westbound {
    animation: trafficWest 19s linear infinite;
    bottom: 50%;
}

@keyframes trafficEast {
    0% { transform: translateX(-15vw); }
    100% { transform: translateX(115vw); }
}

@keyframes trafficWest {
    0% { transform: translateX(115vw); }
    100% { transform: translateX(-15vw); }
}

.headlight-beam {
    width: 45px;
    height: 12px;
    clip-path: polygon(0% 40%, 100% 0%, 100% 100%, 0% 60%);
    background: linear-gradient(90deg, rgba(255, 245, 200, 0.8) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 1s ease;
}

.taillight-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #FF2A2A;
    box-shadow: 0 0 8px #FF2A2A;
}

.sky-night .headlight-beam,
.sky-astronomical-twilight .headlight-beam,
.sky-civil-dusk .headlight-beam,
.sky-nautical-dusk .headlight-beam,
.sky-solar-eclipse .headlight-beam {
    opacity: 0.85;
}

/* --------------------------------------------------------------------------
   Contextual Status Loading Message (Bottom Center)
   -------------------------------------------------------------------------- */
.astro-status-container {
    position: absolute;
    bottom: 2.2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    pointer-events: none;
}

.astro-context-message {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #F5F5F5;
    background: rgba(13, 13, 18, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.14);
    padding: 0.45rem 1.1rem;
    border-radius: 9999px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.sky-daylight .astro-context-message,
.sky-solar-noon .astro-context-message {
    background: rgba(255, 255, 255, 0.88);
    border-color: rgba(0, 0, 0, 0.08);
    color: #171717;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.astro-progress-bar-track {
    width: 160px;
    height: 3px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 2px;
    overflow: hidden;
}

.sky-daylight .astro-progress-bar-track,
.sky-solar-noon .astro-progress-bar-track {
    background: rgba(0, 0, 0, 0.1);
}

.astro-progress-bar-fill {
    height: 100%;
    width: 0%;
    background: #6D4AFF;
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(109, 74, 255, 0.8);
    transition: width 0.3s ease;
}

/* --------------------------------------------------------------------------
   Developer Astronomical Lab / Debug Drawer
   -------------------------------------------------------------------------- */
.astro-debug-drawer {
    position: absolute;
    top: 5rem;
    right: 2rem;
    width: 320px;
    max-width: calc(100vw - 4rem);
    background: rgba(16, 17, 24, 0.94);
    border: 1px solid rgba(139, 117, 255, 0.35);
    border-radius: 12px;
    padding: 1.25rem;
    color: #F0F0F5;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    z-index: 120;
    backdrop-filter: blur(16px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    display: none;
    flex-direction: column;
    gap: 0.85rem;
    user-select: text;
}

.astro-debug-drawer.is-open {
    display: flex;
}

.debug-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 0.5rem;
    font-weight: 700;
    color: #C9B8FF;
}

.debug-field-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.debug-label {
    font-size: 0.65rem;
    color: #85859E;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.debug-slider {
    width: 100%;
    accent-color: #6D4AFF;
    cursor: pointer;
}

.debug-btn-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.35rem;
}

.debug-preset-btn {
    padding: 0.35rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 4px;
    color: #DDD;
    font-size: 0.65rem;
    cursor: pointer;
    text-align: center;
    transition: all 0.15s ease;
}

.debug-preset-btn:hover {
    background: #6D4AFF;
    color: #FFF;
    border-color: #6D4AFF;
}

.debug-select {
    width: 100%;
    background: #11121A;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #EEE;
    padding: 0.35rem;
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.7rem;
}

.debug-telemetry-readout {
    background: #0A0B10;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    padding: 0.5rem;
    font-size: 0.65rem;
    line-height: 1.4;
    color: #A0A0BA;
}

/* --------------------------------------------------------------------------
   Responsive Viewport Recomposition
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .astro-top-bar {
        padding: 1rem;
    }

    .astro-telemetry-badge {
        font-size: 0.65rem;
        padding: 0.4rem 0.8rem;
    }

    /* Mobile vertical recomposition: Elevate hero tower & clear upper sky */
    .skyline-layer-mid {
        gap: 2.5vw;
        height: 65%;
    }

    .skyline-layer-bg {
        height: 50%;
    }

    .street-lamp-post:nth-child(even) {
        display: none;
    }

    .street-tree:nth-child(3n) {
        display: none;
    }

    .astro-status-container {
        bottom: 1.5rem;
    }

    .astro-context-message {
        font-size: 0.65rem;
        padding: 0.35rem 0.85rem;
    }

    .astro-debug-drawer {
        top: 4.5rem;
        right: 1rem;
        left: 1rem;
        width: auto;
    }
}

/* Reduced Motion Compliance */
@media (prefers-reduced-motion: reduce) {
    #astro-city-loader {
        transition: opacity 0.2s ease;
    }
    .cloud-drift-slow,
    .cloud-drift-medium,
    .cloud-drift-fast,
    .bird-flight-path,
    .bird-wing-flap,
    .car-eastbound,
    .car-westbound,
    .city-star {
        animation: none !important;
    }
}