:root {
    --primary: #679176;
    --primary-dark: #386B4E;
    --dark: #0F172A;
    --dark-green: #06140C;
    --text: #222222;
    --text-light: #454F5E;

    --surface: #FFFFFF;
    --background: #EDF6EE;
    --highlight: #D4F3D7;
    --border: #dbe7dc;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100%;
}

body {
    font-family: Segoe UI, Arial, sans-serif;
    background: var(--background);
    color: var(--text);
}

/* =========================
   READER HEADER
   ========================= */

.reader-header {
    height: 72px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 0 28px;

    background: var(--dark);
    color: white;

    box-shadow: 0 2px 12px rgba(0,0,0,.18);
}

.reader-brand {
    display: flex;
    align-items: center;
    gap: 14px;

    color: white;
    text-decoration: none;
}

.reader-brand img {
    width: 46px;
    height: 46px;
    object-fit: contain;
}

.reader-brand strong {
    display: block;
    font-size: 15px;
    letter-spacing: .4px;
}

.reader-brand span {
    display: block;
    margin-top: 3px;

    color: var(--highlight);
    font-size: 13px;
}

.back-link {
    color: var(--highlight);
    text-decoration: none;

    padding: 9px 14px;
    border-radius: 8px;

    transition: .2s;
}

.back-link:hover {
    background: var(--primary-dark);
    color: white;
}

/* =========================
   BOOK INFO
   ========================= */

.reader-info {
    max-width: 1500px;
    margin: 20px auto 0;
    padding: 0 24px;
}

.reader-info-inner {
    background: var(--surface);

    border: 1px solid var(--border);
    border-radius: 12px;

    padding: 18px 22px;

    box-shadow: 0 4px 15px rgba(15,23,42,.07);
}

.reader-title {
    margin: 0;

    font-size: 22px;
    line-height: 1.35;

    color: var(--dark-green);
}

.reader-author {
    margin-top: 5px;

    font-size: 14px;
    color: var(--text-light);
}

/* =========================
   READER
   ========================= */

.reader-container {
    max-width: 1500px;

    margin: 20px auto 30px;
    padding: 0 24px;
}

.reader-frame {
    overflow: hidden;

    background: #111;

    border: 1px solid var(--border);
    border-radius: 14px;

    box-shadow: 0 10px 35px rgba(15,23,42,.20);
}

.theater {
    width: 100%;
    overflow: hidden;

    background: #111;
}

/* =========================
   FOOTER
   ========================= */

.reader-footer {
    padding: 15px;

    text-align: center;

    color: var(--text-light);
    font-size: 13px;
}

.reader-footer a {
    color: inherit;
    text-decoration: underline;
}

.reader-footer a:hover {
    color: var(--primary-dark);
}

.reader-credits {
    margin-left: 8px;
    opacity: 0.85;
}

@media (max-width: 700px) {
    .reader-credits {
        display: block;
        margin-left: 0;
        margin-top: 4px;
    }
}

@media (max-width: 700px) {

    .reader-header {
        height: 64px;
        padding: 0 14px;
    }

    .reader-brand img {
        width: 38px;
        height: 38px;
    }

    .reader-brand strong {
        font-size: 12px;
    }

    .reader-brand span {
        font-size: 11px;
    }

    .back-link {
        font-size: 13px;
        padding: 7px 9px;
    }

    .reader-info,
    .reader-container {
        padding: 0 10px;
    }

    .reader-info-inner {
        padding: 14px;
    }

    .reader-title {
        font-size: 18px;
    }

    .reader-container {
        margin-top: 10px;
    }

    .reader-frame {
        border-radius: 8px;
    }
}

/* Custom Reader Overrides */
.BookReader .BRcontainer {
  padding: 0 !important;
}
.BRmode1up .BRpageview {
  margin: 0 auto !important;
}
/* If in 2-up mode, completely collapse leaf edges */
/*
.br-mode-2up__leafs {
  display: none !important;
  width: 0 !important;
  min-width: 0 !important;
  max-width: 0 !important;
}
*/

.br-mode-2up__leafs:not(.br-mode-2up__leafs--flipping) {
  opacity: 0 !important;
  pointer-events: none;
}