:root {
    --bg-pure: #000000;
    --panel-bg: #000000;
    --card-bg: #000000;
    --border-subtle: #111111;
    --border-hover: #333333;
    --text-main: #ffffff;
    --text-secondary: #888888;
    --text-muted: #444444;
    --accent: #ffffff;
    --easing: cubic-bezier(0.16, 1, 0.3, 1);
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-pure);
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-pure);
    color: var(--text-main);
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    
    /* Security Layer: Disable highlight across the app */
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Apple-inspired Immersive Floating Glass Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    padding: 14px 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    border-bottom: 1px solid var(--border-subtle);
}

.header-content {
    width: 100%;
    max-width: 1100px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    position: relative;
}

/* Vercel-style Monochromatic Action Control */
.nav-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    font-family: 'Roboto', sans-serif;
    transition: all 0.25s var(--easing);
    position: absolute;
    left: 24px;
}

.nav-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-main);
    background: #0a0a0a;
}

#header-title {
    margin: 0 auto;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-main);
    max-width: 50%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
}

/* Vercel Status Badge Pill */
.page-counter-pill {
    position: absolute;
    right: 24px;
    background: #0a0a0a;
    border: 1px solid var(--border-subtle);
    padding: 5px 12px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.8px;
    color: var(--text-secondary);
    transition: opacity 0.3s var(--easing);
}

.page-counter-pill span {
    color: var(--text-main);
    font-weight: 700;
}

/* Screens Framing Content Sections */
.screen {
    max-width: 1100px;
    margin: 110px auto 60px auto;
    padding: 0 24px;
    box-sizing: border-box;
    animation: premiumFadeIn 0.5s var(--easing);
}

.hidden { display: none !important; }

h2 {
    font-weight: 500;
    letter-spacing: 2px;
    margin-bottom: 32px;
    text-transform: uppercase;
    font-size: 11px;
    color: var(--text-secondary);
}

/* Vercel Clean Sharp Geometry Grids */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 24px;
}

.media-card {
    background: var(--card-bg);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.4s var(--easing), border-color 0.4s var(--easing), box-shadow 0.4s var(--easing);
    display: flex;
    flex-direction: column;
}

.media-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(255, 255, 255, 0.03);
}

.thumb-wrapper {
    width: 100%;
    aspect-ratio: 3 / 4;
    background: #020202;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--border-subtle);
}

.thumb-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--easing);
    pointer-events: none; /* Prevents dragging covers */
}

.media-card:hover .thumb-wrapper img {
    transform: scale(1.02);
}

.media-card:hover .thumb-wrapper {
    border-bottom-color: var(--border-hover);
}

.card-info {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.card-info h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-main);
    letter-spacing: -0.1px;
}

.card-info span {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 500;
}

.media-card:hover .card-info span {
    color: var(--text-secondary);
}

/* Seamless High-Contrast Media Strip Reader */
#viewer-screen {
    max-width: 760px;
    padding: 0;
    margin-top: 53px;
}

#image-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    background: #000000;
}

/* Security Canvas Elements instead of standard <img> tags */
.manga-page-canvas {
    width: 100%;
    height: auto;
    display: block;
    margin-bottom: -1px;
    background-color: #000000;
    image-rendering: -webkit-optimize-contrast;
    animation: panelFadeIn 0.6s var(--easing);
    pointer-events: none; /* Makes surface completely non-interactable */
}

/* Apple-Inspired Bottom Sticky Action Bridge */
.bottom-nav-bar {
    width: 100%;
    background: #000000;
    border-top: 1px solid var(--border-subtle);
    padding: 48px 24px;
    display: flex;
    justify-content: center;
    box-sizing: border-box;
}

/* Premium Stark Vercel Monolithic Button */
.next-chapter-btn {
    background: #ffffff;
    color: #000000;
    border: 1px solid #ffffff;
    padding: 12px 40px;
    font-size: 13px;
    font-weight: 500;
    font-family: 'Roboto', sans-serif;
    border-radius: 6px;
    cursor: pointer;
    letter-spacing: 0.5px;
    transition: all 0.25s var(--easing);
}

.next-chapter-btn:hover {
    background: transparent;
    color: #ffffff;
    border-color: #ffffff;
}

.next-chapter-btn:disabled {
    background: transparent;
    color: var(--text-muted);
    border-color: var(--border-subtle);
    cursor: not-allowed;
}

.loader {
    text-align: center;
    padding: 100px 24px;
    font-size: 11px;
    color: var(--text-secondary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

/* Motion System Transitions */
@keyframes premiumFadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes panelFadeIn {
    from { opacity: 0.85; }
    to { opacity: 1; }
}