/* ==========================================================================
   1970 Dodge Charger — Scroll-Driven Canvas Video Showcase Stylesheet
   Theme: Pitch Black (#000000), Stark White & Mopar Red Accents
   ========================================================================== */

:root {
    --color-black: #000000;
    --color-dark-slate: #0b0c0e;
    --color-silver-light: #ffffff;
    --color-silver-mid: #c4ca8;
    --color-silver-dark: #6e7582;
    --color-mopar-red: #e63946;
    --font-heading: 'Bebas Neue', sans-serif;
    --font-body: 'Outfit', sans-serif;
    --font-mono: 'Space Mono', monospace;
}

/* Lenis Smooth Scroll CSS setup */
html.lenis, html.lenis body {
    height: auto;
}

.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}

.lenis.lenis-stopped {
    overflow: hidden;
}

.lenis.lenis-scrolling iframe {
    pointer-events: none;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    width: 100%;
    min-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    background-color: var(--color-black);
}

body {
    width: 100%;
    min-height: 100vh;
    background-color: var(--color-black);
    color: var(--color-silver-light);
    font-family: var(--font-body);
    overflow-x: hidden;
    overflow-y: auto;
}

/* Top Scroll Progress Line */
.top-scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-mopar-red), #ffffff);
    width: 0%;
    z-index: 1000;
    transition: width 0.05s linear;
    box-shadow: 0 0 10px rgba(230, 57, 70, 0.8);
}

/* Preloader Overlay */
.loader-overlay {
    position: fixed;
    inset: 0;
    background-color: var(--color-black);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: auto;
}

.loader-overlay.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none !important;
}

.loader-content {
    width: 90%;
    max-width: 480px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
}

.loader-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    color: var(--color-mopar-red);
    background: rgba(230, 57, 70, 0.1);
    border: 1px solid rgba(230, 57, 70, 0.3);
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    box-shadow: 0 0 15px rgba(230, 57, 70, 0.2);
}

.loader-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    letter-spacing: 0.05em;
    color: #ffffff;
    line-height: 1;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

.progress-bar-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #e63946, #ffffff);
    transition: width 0.15s ease-out;
    box-shadow: 0 0 12px rgba(230, 57, 70, 0.9);
}

.loader-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-silver-dark);
    letter-spacing: 0.15em;
}

.loader-sub {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.4);
}

/* HUD Header Navigation */
.hud-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.8rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    pointer-events: auto;
}

.brand {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    letter-spacing: 0.08em;
    color: #ffffff;
    line-height: 1;
}

.brand-year {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    color: var(--color-mopar-red);
}

.scroll-indicator {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    background: rgba(15, 15, 18, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
}

.scroll-mouse {
    width: 14px;
    height: 22px;
    border: 2px solid #ffffff;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    padding-top: 4px;
}

.scroll-wheel {
    width: 3px;
    height: 6px;
    background-color: var(--color-mopar-red);
    border-radius: 2px;
    animation: scrollWheel 1.5s infinite;
}

@keyframes scrollWheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(6px); opacity: 0; }
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    color: #e0e4ec;
}

/* HUD Controls */
.hud-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sound-toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.sound-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #ffffff;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.sound-toggle-btn.active {
    background: rgba(230, 57, 70, 0.2);
    border-color: var(--color-mopar-red);
    color: var(--color-mopar-red);
    box-shadow: 0 0 15px rgba(230, 57, 70, 0.4);
}

.nav-switch-btn {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    color: #ffffff;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.6rem 1.4rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
}

.nav-switch-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: #ffffff;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.25);
}

/* Scroll Container & Pinned Canvas */
.scroll-track {
    position: relative;
    width: 100%;
    height: 600vh; /* 6x viewport height for smooth scrolling */
}

.canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background-color: var(--color-black);
    z-index: 10;
    pointer-events: none;
}

.canvas-container::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 40%, rgba(0, 0, 0, 0.7) 100%);
    pointer-events: none;
    z-index: 15;
}

#sequence-canvas {
    width: 100%;
    height: 100%;
    display: block;
    pointer-events: none;
}

/* Phase Badges (Floating on Left HUD) */
.phase-badges {
    position: absolute;
    left: 3rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    z-index: 30;
    pointer-events: auto;
}

.story-badge {
    appearance: none;
    background: transparent;
    border: none;
    border-left: 2px solid rgba(255, 255, 255, 0.15);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.35);
    padding: 0.4rem 0 0.4rem 1rem;
    text-align: left;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.story-badge:hover {
    color: #ffffff;
    border-left-color: rgba(255, 255, 255, 0.6);
    transform: translateX(4px);
}

.story-badge.active {
    color: #ffffff;
    border-left-color: var(--color-mopar-red);
    text-shadow: 0 0 10px rgba(230, 57, 70, 0.8);
    transform: translateX(6px);
}

/* Right-Side Specifications Typography Panel */
.specs-panel {
    position: absolute;
    right: 5vw;
    top: 50%;
    transform: translateY(-50%) translateY(40px);
    width: 90%;
    max-width: 480px;
    z-index: 40;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.specs-panel.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(-50%) translateY(0);
}

.specs-content {
    background: rgba(12, 13, 16, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: blur(20px);
    box-shadow: 
        0 30px 80px rgba(0, 0, 0, 0.95),
        0 0 1px rgba(255, 255, 255, 0.3);
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.specs-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    color: var(--color-mopar-red);
}

.specs-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    line-height: 0.95;
    letter-spacing: 0.04em;
    background: linear-gradient(180deg, #ffffff 0%, #a8b0c0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.specs-lead {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #9da4b2;
    font-weight: 300;
}

.specs-details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2rem;
    margin-top: 0.5rem;
    padding-top: 1.2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.spec-detail-box {
    display: flex;
    flex-direction: column;
}

.spec-num {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: #ffffff;
    line-height: 1;
}

.spec-unit {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--color-mopar-red);
    letter-spacing: 0.15em;
}

.spec-name {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: #7d8494;
    letter-spacing: 0.1em;
    margin-top: 0.2rem;
}

/* Responsive Rules */
@media (max-width: 900px) {
    .hud-header {
        padding: 1.2rem;
    }

    .scroll-indicator {
        display: none;
    }

    .phase-badges {
        display: none;
    }

    .specs-panel {
        right: 50%;
        transform: translate(50%, 40px);
        width: 92%;
        top: auto;
        bottom: 2rem;
    }

    .specs-panel.visible {
        transform: translate(50%, 0);
    }

    .specs-content {
        padding: 1.5rem;
    }

    .specs-title {
        font-size: 2.2rem;
    }
}