/* ============================================
   EXODUS · Sala de Leitura — temas + tipografia ajustável
   Usado por leitura.html e futuros capítulos em prosa.
   ============================================ */

:root {
    --reader-font-scale: 1;
    /* Tema padrão: Imersivo */
    --rd-bg: #050505;
    --rd-surface: #0a0a0c;
    --rd-border: #222222;
    --rd-text: #d4d4d4;
    --rd-h1: #c0392b;
    --rd-h2: #7f8c8d;
    --rd-epi: #888888;
    --rd-shadow: rgba(192, 57, 43, 0.1);
    --rd-accent-hover: rgba(192, 57, 43, 0.08);
}

html[data-reader-theme="noturno"] {
    --rd-bg: #000000;
    --rd-surface: #0d0d0d;
    --rd-border: #1c1c1c;
    --rd-text: #b9b9b9;
    --rd-h1: #8f3b34;
    --rd-h2: #6c6c6c;
    --rd-epi: #767676;
    --rd-shadow: rgba(0, 0, 0, 0);
    --rd-accent-hover: rgba(143, 59, 52, 0.1);
}

html[data-reader-theme="sono"] {
    --rd-bg: #140f0a;
    --rd-surface: #1c1610;
    --rd-border: #2c2216;
    --rd-text: #cdb896;
    --rd-h1: #a8623a;
    --rd-h2: #8a7458;
    --rd-epi: #8a7458;
    --rd-shadow: rgba(168, 98, 58, 0.12);
    --rd-accent-hover: rgba(168, 98, 58, 0.12);
}

html[data-reader-theme="dia"] {
    --rd-bg: #f2ede2;
    --rd-surface: #fbf8f1;
    --rd-border: #ddd2ba;
    --rd-text: #2c2620;
    --rd-h1: #a5281c;
    --rd-h2: #746a58;
    --rd-epi: #5c5344;
    --rd-shadow: rgba(0, 0, 0, 0.08);
    --rd-accent-hover: rgba(165, 40, 28, 0.08);
}

/* Reset e Fundo */
body {
    background-color: var(--rd-bg);
    color: var(--rd-text);
    font-family: 'Palatino Linotype', 'Book Antiqua', Palatino, serif;
    font-size: calc(16px * var(--reader-font-scale));
    line-height: 1.7;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    transition: background-color 0.25s ease, color 0.25s ease;
}

.book-container {
    max-width: 750px;
    margin: 50px 20px;
    padding: 60px;
    background-color: var(--rd-surface);
    border: 1px solid var(--rd-border);
    box-shadow: 0 0 30px var(--rd-shadow);
    transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

h1 {
    font-family: 'Courier New', Courier, monospace;
    color: var(--rd-h1);
    text-transform: uppercase;
    text-align: center;
    font-size: calc(24px * var(--reader-font-scale));
    letter-spacing: 4px;
    margin-bottom: 10px;
}

h2 {
    font-family: 'Courier New', Courier, monospace;
    color: var(--rd-h2);
    text-transform: uppercase;
    text-align: center;
    font-size: calc(16px * var(--reader-font-scale));
    letter-spacing: 2px;
    margin-bottom: 40px;
}

.epigraph {
    font-style: italic;
    color: var(--rd-epi);
    border-left: 4px solid var(--rd-h1);
    padding-left: 20px;
    margin-bottom: 50px;
    font-size: 0.95em;
}

p {
    margin-bottom: 20px;
    text-indent: 30px;
    font-size: calc(18px * var(--reader-font-scale));
}

/* Bloco de Terminal Hacker — sempre "tela escura", independente do tema de leitura */
.terminal-block {
    background-color: #000000;
    color: #00ff41;
    font-family: 'Courier New', Courier, monospace;
    padding: 20px;
    border: 1px solid #00ff41;
    border-radius: 4px;
    margin: 30px 0;
    font-size: calc(15px * var(--reader-font-scale));
    text-indent: 0;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.2);
}

.terminal-alert {
    color: #ff0000;
    border-color: #ff0000;
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.2);
}

/* Navegação de retorno */
.reader-nav {
    position: fixed;
    top: 18px;
    left: 18px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 12px;
    letter-spacing: 0.05em;
    z-index: 20;
}
.reader-nav a {
    color: var(--rd-h2);
    text-decoration: none;
    border: 1px solid var(--rd-border);
    padding: 6px 12px;
    background: var(--rd-surface);
}
.reader-nav a:hover { color: var(--rd-text); border-color: var(--rd-h1); }

/* Botão + painel de preferências de leitura */
.reader-settings {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 20;
    font-family: 'Courier New', Courier, monospace;
}

.reader-settings-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--rd-h2);
    background: var(--rd-surface);
    border: 1px solid var(--rd-border);
    padding: 6px 12px;
    font-family: inherit;
    font-size: 12px;
    letter-spacing: 0.05em;
    cursor: pointer;
}
.reader-settings-toggle:hover { color: var(--rd-text); border-color: var(--rd-h1); }

.reader-settings-panel {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 260px;
    background: var(--rd-surface);
    border: 1px solid var(--rd-border);
    padding: 18px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}
.reader-settings-panel[hidden] { display: none; }

.reader-settings-label {
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--rd-h2);
    margin: 0 0 10px;
}
.reader-settings-label:not(:first-child) { margin-top: 18px; }

.reader-theme-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.reader-theme-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 1px solid var(--rd-border);
    padding: 6px 8px;
    cursor: pointer;
    font-family: inherit;
    font-size: 11px;
    color: var(--rd-text);
    text-align: left;
}
.reader-theme-btn:hover { border-color: var(--rd-h1); }
.reader-theme-btn.active { border-color: var(--rd-h1); box-shadow: inset 0 0 0 1px var(--rd-h1); }

.reader-theme-swatch {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    flex: none;
    border: 1px solid rgba(255, 255, 255, 0.15);
}
.reader-theme-swatch.swatch-imersivo { background: radial-gradient(circle at 30% 30%, #c0392b, #0a0a0c 70%); }
.reader-theme-swatch.swatch-noturno { background: radial-gradient(circle at 30% 30%, #8f3b34, #0d0d0d 70%); }
.reader-theme-swatch.swatch-sono { background: radial-gradient(circle at 30% 30%, #a8623a, #1c1610 70%); }
.reader-theme-swatch.swatch-dia { background: radial-gradient(circle at 30% 30%, #a5281c, #fbf8f1 70%); }

.reader-font-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.reader-font-btn {
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--rd-border);
    color: var(--rd-text);
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
}
.reader-font-btn:hover:not(:disabled) { border-color: var(--rd-h1); }
.reader-font-btn:disabled { opacity: 0.3; cursor: default; }
.reader-font-current {
    flex: 1;
    text-align: center;
    font-size: 11px;
    color: var(--rd-h2);
    letter-spacing: 0.04em;
}

/* Rodapé de conversão */
.reader-cta {
    margin-top: 50px;
    text-indent: 0;
    font-family: 'Courier New', Courier, monospace;
    font-size: calc(14px * var(--reader-font-scale));
    text-align: center;
    color: var(--rd-h2);
}
.reader-cta a {
    display: inline-block;
    margin-top: 16px;
    color: var(--rd-h1);
    border: 1px solid var(--rd-h1);
    padding: 12px 22px;
    text-decoration: none;
    letter-spacing: 0.04em;
}
.reader-cta a:hover { background: var(--rd-accent-hover); }

@media (max-width: 600px) {
    .book-container { padding: 30px; margin: 0; border: none; }
    p { font-size: calc(16px * var(--reader-font-scale)); }
    .reader-nav { top: 10px; left: 10px; }
    .reader-settings { top: 10px; right: 10px; }
    .reader-settings-panel { width: calc(100vw - 40px); right: -10px; }
}

@media (prefers-reduced-motion: reduce) {
    body, .book-container { transition: none; }
}