:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent-color: #bb86fc;
    --accent-hover: #9965f4;
    --header-height: 60px;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
}

/* Utilitarios */
.screen {
    display: none;
    min-height: 100vh;
    padding-top: var(--header-height);
}

.screen.active {
    display: block;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(30, 30, 30, 0.95);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    padding: 0 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    z-index: 1000;
}

header h2 {
    font-size: 1.2rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-grow: 1;
    margin-left: 15px;
}

/* Botones */
.btn-primary {
    background-color: var(--accent-color);
    color: #000;
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: bold;
    cursor: pointer;
    border: none;
    transition: background-color 0.2s;
    text-align: center;
    display: inline-block;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
}

.btn-nav {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid #333;
    padding: 5px 15px;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 5px;
}

.btn-nav:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Lista de Mangas (Grid) */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
    padding: 20px;
}

.manga-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 15px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    height: 100%;
    overflow: hidden;
}

.manga-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    background-color: #2a2a2a;
}

.manga-icon {
    font-size: 3rem;
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.manga-cover {
    width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 4px;
    margin-bottom: 10px;
}

.manga-title {
    font-weight: bold;
    font-size: 0.9rem;
    word-break: break-word;
}

/* Lista de Capítulos */
.list-container {
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.chapter-item {
    background-color: var(--card-bg);
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.2s;
}

.chapter-item:hover {
    background-color: #2a2a2a;
}

.chapter-item.read {
    opacity: 0.7;
    background-color: #1a1a1a;
}

.read-badge {
    background-color: #333;
    color: var(--text-secondary);
    font-size: 0.8rem;
    padding: 4px 8px;
    border-radius: 4px;
    margin-left: 10px;
}

.chapter-name {
    font-weight: 500;
}

/* Lector */
#reader-screen {
    padding-top: var(--header-height);
}

.reader-header .chapter-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.8rem;
    flex-grow: 1;
}

#current-manga-name {
    color: var(--text-secondary);
    font-size: 0.7rem;
}

#current-chapter-name {
    font-weight: bold;
}

#reader-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    /* La clave para eliminar espacios blancos entre imágenes */
    line-height: 0;
    font-size: 0;
    background-color: #000;
}

#reader-container img {
    display: block;
    width: 100%;
    height: auto;
    border: none;
    margin: 0;
    padding: 0;
}

.reader-footer {
    padding: 40px 20px;
    text-align: center;
    background-color: var(--bg-color);
}