.reader-body.reader-theme-white {
    --reader-page-bg: #efede9;
    --reader-surface-bg: #F8F6F2;
    --reader-content-text: #454340;
    --reader-muted-text: #716e69;
    --reader-chrome-bg: rgba(248, 246, 242, 0.96);
    --reader-chrome-border: rgba(69, 67, 64, 0.14);
    --reader-panel-bg: #F8F6F2;
    --reader-panel-text: #454340;
    --reader-panel-muted: #716e69;
    --reader-panel-border: rgba(69, 67, 64, 0.18);
    --reader-panel-hover: rgba(69, 67, 64, 0.07);
    --reader-panel-current-bg: #7f2b3a;
    --reader-panel-current-text: #ffffff;
    --reader-chrome-text: #454340;
    --reader-control-bg: rgba(255,255,255,0.56);
    --reader-control-hover: rgba(69,67,64,0.10);
    --reader-accent: #7f2b3a;
    --reader-accent-hover: #96384a;
    --reader-on-accent: #ffffff;
}

.reader-body.reader-theme-sepia {
    --reader-page-bg: #dfd0ae;
    --reader-surface-bg: #EDE0C0;
    --reader-content-text: #4A3826;
    --reader-muted-text: #75634f;
    --reader-chrome-bg: rgba(237, 224, 192, 0.96);
    --reader-chrome-border: rgba(74, 56, 38, 0.16);
    --reader-panel-bg: #EDE0C0;
    --reader-panel-text: #4A3826;
    --reader-panel-muted: #75634f;
    --reader-panel-border: rgba(74, 56, 38, 0.20);
    --reader-panel-hover: rgba(74, 56, 38, 0.08);
    --reader-panel-current-bg: #75452f;
    --reader-panel-current-text: #fff8ea;
    --reader-chrome-text: #4A3826;
    --reader-control-bg: rgba(255,255,255,0.25);
    --reader-control-hover: rgba(74,56,38,0.11);
    --reader-accent: #75452f;
    --reader-accent-hover: #8b563a;
    --reader-on-accent: #fff8ea;
}

.reader-body.reader-theme-paper {
    --reader-page-bg: #aaa69f;
    --reader-surface-bg: #B7B3AB;
    --reader-content-text: #232323;
    --reader-muted-text: #56534f;
    --reader-chrome-bg: rgba(183, 179, 171, 0.96);
    --reader-chrome-border: rgba(35, 35, 35, 0.18);
    --reader-panel-bg: #B7B3AB;
    --reader-panel-text: #232323;
    --reader-panel-muted: #56534f;
    --reader-panel-border: rgba(35, 35, 35, 0.22);
    --reader-panel-hover: rgba(35, 35, 35, 0.08);
    --reader-panel-current-bg: #5f2a34;
    --reader-panel-current-text: #ffffff;
    --reader-chrome-text: #232323;
    --reader-control-bg: rgba(255,255,255,0.20);
    --reader-control-hover: rgba(35,35,35,0.11);
    --reader-accent: #5f2a34;
    --reader-accent-hover: #763743;
    --reader-on-accent: #ffffff;
}

.reader-body.reader-theme-dim {
    --reader-page-bg: #323232;
    --reader-surface-bg: #3B3B3B;
    --reader-content-text: #D2D2D2;
    --reader-muted-text: #a9a9a9;
    --reader-chrome-bg: rgba(59, 59, 59, 0.96);
    --reader-chrome-border: rgba(210, 210, 210, 0.14);
    --reader-panel-bg: #3B3B3B;
    --reader-panel-text: #D2D2D2;
    --reader-panel-muted: #a9a9a9;
    --reader-panel-border: rgba(210, 210, 210, 0.18);
    --reader-panel-hover: rgba(255,255,255,0.08);
    --reader-panel-current-bg: #b97848;
    --reader-panel-current-text: #171717;
    --reader-chrome-text: #D2D2D2;
    --reader-control-bg: rgba(255,255,255,0.06);
    --reader-control-hover: rgba(255,255,255,0.11);
    --reader-accent: #d19a66;
    --reader-accent-hover: #dfaa75;
    --reader-on-accent: #1a1a1a;
}

.reader-body.reader-theme-oled {
    --reader-page-bg: #0b0b0b;
    --reader-surface-bg: #121212;
    --reader-content-text: #AEAEAE;
    --reader-muted-text: #858585;
    --reader-chrome-bg: rgba(18, 18, 18, 0.97);
    --reader-chrome-border: rgba(174, 174, 174, 0.14);
    --reader-panel-bg: #181818;
    --reader-panel-text: #c8c8c8;
    --reader-panel-muted: #8f8f8f;
    --reader-panel-border: rgba(174, 174, 174, 0.18);
    --reader-panel-hover: rgba(255,255,255,0.07);
    --reader-panel-current-bg: #c98b56;
    --reader-panel-current-text: #111111;
    --reader-chrome-text: #AEAEAE;
    --reader-control-bg: rgba(255,255,255,0.05);
    --reader-control-hover: rgba(255,255,255,0.10);
    --reader-accent: #d09a69;
    --reader-accent-hover: #deb07f;
    --reader-on-accent: #111111;
}

.reader-body.reader-theme-cream {
    --reader-page-bg: #e9dfcb;
    --reader-surface-bg: #F6EEDD;
    --reader-content-text: #4A4032;
    --reader-muted-text: #756958;
    --reader-chrome-bg: rgba(246, 238, 221, 0.96);
    --reader-chrome-border: rgba(74, 64, 50, 0.16);
    --reader-panel-bg: #F6EEDD;
    --reader-panel-text: #4A4032;
    --reader-panel-muted: #756958;
    --reader-panel-border: rgba(74, 64, 50, 0.20);
    --reader-panel-hover: rgba(74, 64, 50, 0.08);
    --reader-panel-current-bg: #8a5942;
    --reader-panel-current-text: #fff8ed;
    --reader-chrome-text: #4A4032;
    --reader-control-bg: rgba(255,255,255,0.30);
    --reader-control-hover: rgba(74,64,50,0.11);
    --reader-accent: #8a5942;
    --reader-accent-hover: #9c684f;
    --reader-on-accent: #fff8ed;
}

.reader-body.reader-theme-mint {
    --reader-page-bg: #cbd9c8;
    --reader-surface-bg: #DCE8DA;
    --reader-content-text: #2E4A3A;
    --reader-muted-text: #5b7062;
    --reader-chrome-bg: rgba(220, 232, 218, 0.96);
    --reader-chrome-border: rgba(46, 74, 58, 0.16);
    --reader-panel-bg: #DCE8DA;
    --reader-panel-text: #2E4A3A;
    --reader-panel-muted: #5b7062;
    --reader-panel-border: rgba(46, 74, 58, 0.20);
    --reader-panel-hover: rgba(46, 74, 58, 0.08);
    --reader-panel-current-bg: #406b58;
    --reader-panel-current-text: #f5fff8;
    --reader-chrome-text: #2E4A3A;
    --reader-control-bg: rgba(255,255,255,0.30);
    --reader-control-hover: rgba(46,74,58,0.10);
    --reader-accent: #487862;
    --reader-accent-hover: #568a72;
    --reader-on-accent: #f5fff8;
}

.reader-body.reader-theme-sky {
    --reader-page-bg: #b8ccd9;
    --reader-surface-bg: #C9DCE8;
    --reader-content-text: #20374A;
    --reader-muted-text: #536c7e;
    --reader-chrome-bg: rgba(201, 220, 232, 0.96);
    --reader-chrome-border: rgba(32, 55, 74, 0.16);
    --reader-panel-bg: #C9DCE8;
    --reader-panel-text: #20374A;
    --reader-panel-muted: #536c7e;
    --reader-panel-border: rgba(32, 55, 74, 0.20);
    --reader-panel-hover: rgba(32, 55, 74, 0.08);
    --reader-panel-current-bg: #355f7d;
    --reader-panel-current-text: #f5fbff;
    --reader-chrome-text: #20374A;
    --reader-control-bg: rgba(255,255,255,0.28);
    --reader-control-hover: rgba(32,55,74,0.10);
    --reader-accent: #3f6f91;
    --reader-accent-hover: #4d809f;
    --reader-on-accent: #f5fbff;
}

.reader-body.reader-theme-rose {
    --reader-page-bg: #b99384;
    --reader-surface-bg: #C9A99A;
    --reader-content-text: #3A241B;
    --reader-muted-text: #6b5146;
    --reader-chrome-bg: rgba(201, 169, 154, 0.96);
    --reader-chrome-border: rgba(58, 36, 27, 0.17);
    --reader-panel-bg: #C9A99A;
    --reader-panel-text: #3A241B;
    --reader-panel-muted: #6b5146;
    --reader-panel-border: rgba(58, 36, 27, 0.21);
    --reader-panel-hover: rgba(58, 36, 27, 0.09);
    --reader-panel-current-bg: #713f34;
    --reader-panel-current-text: #fff6f1;
    --reader-chrome-text: #3A241B;
    --reader-control-bg: rgba(255,255,255,0.19);
    --reader-control-hover: rgba(58,36,27,0.11);
    --reader-accent: #7d4639;
    --reader-accent-hover: #925448;
    --reader-on-accent: #fff6f1;
}

.reader-body.reader-theme-navy {
    --reader-page-bg: #0e151d;
    --reader-surface-bg: #141B24;
    --reader-content-text: #A6B4BF;
    --reader-muted-text: #7d8d99;
    --reader-chrome-bg: rgba(20, 27, 36, 0.97);
    --reader-chrome-border: rgba(166, 180, 191, 0.15);
    --reader-panel-bg: #18212b;
    --reader-panel-text: #b8c4cd;
    --reader-panel-muted: #83929d;
    --reader-panel-border: rgba(166, 180, 191, 0.19);
    --reader-panel-hover: rgba(255,255,255,0.07);
    --reader-panel-current-bg: #7d9aaa;
    --reader-panel-current-text: #111820;
    --reader-chrome-text: #A6B4BF;
    --reader-control-bg: rgba(255,255,255,0.05);
    --reader-control-hover: rgba(255,255,255,0.10);
    --reader-accent: #91aab8;
    --reader-accent-hover: #a4bac6;
    --reader-on-accent: #111820;
}

/* Additional reading palettes. Kept distinct from the original presets and ordered in the UI by surface luminance. */
.reader-body.reader-theme-ivory {
    --reader-page-bg: #E5E9E2;
    --reader-surface-bg: #F2F4EE;
    --reader-content-text: #303A35;
    --reader-muted-text: #66716B;
    --reader-chrome-bg: rgba(242, 244, 238, 0.96);
    --reader-chrome-border: rgba(48, 58, 53, 0.15);
    --reader-panel-bg: #F2F4EE;
    --reader-panel-text: #303A35;
    --reader-panel-muted: #66716B;
    --reader-panel-border: rgba(48, 58, 53, 0.19);
    --reader-panel-hover: rgba(48, 58, 53, 0.07);
    --reader-panel-current-bg: #536D62;
    --reader-panel-current-text: #F7FBF8;
    --reader-chrome-text: #303A35;
    --reader-control-bg: rgba(255,255,255,0.42);
    --reader-control-hover: rgba(48,58,53,0.09);
    --reader-accent: #536D62;
    --reader-accent-hover: #647E72;
    --reader-on-accent: #F7FBF8;
}

.reader-body.reader-theme-lavender {
    --reader-page-bg: #D8D2E1;
    --reader-surface-bg: #E8E2F0;
    --reader-content-text: #3E3448;
    --reader-muted-text: #70647A;
    --reader-chrome-bg: rgba(232, 226, 240, 0.96);
    --reader-chrome-border: rgba(62, 52, 72, 0.15);
    --reader-panel-bg: #E8E2F0;
    --reader-panel-text: #3E3448;
    --reader-panel-muted: #70647A;
    --reader-panel-border: rgba(62, 52, 72, 0.19);
    --reader-panel-hover: rgba(62, 52, 72, 0.08);
    --reader-panel-current-bg: #6D5B7B;
    --reader-panel-current-text: #FFF9FF;
    --reader-chrome-text: #3E3448;
    --reader-control-bg: rgba(255,255,255,0.32);
    --reader-control-hover: rgba(62,52,72,0.10);
    --reader-accent: #745F83;
    --reader-accent-hover: #866F96;
    --reader-on-accent: #FFF9FF;
}

.reader-body.reader-theme-sage {
    --reader-page-bg: #C8C4AA;
    --reader-surface-bg: #D8D3B8;
    --reader-content-text: #34372A;
    --reader-muted-text: #666957;
    --reader-chrome-bg: rgba(216, 211, 184, 0.96);
    --reader-chrome-border: rgba(52, 55, 42, 0.16);
    --reader-panel-bg: #D8D3B8;
    --reader-panel-text: #34372A;
    --reader-panel-muted: #666957;
    --reader-panel-border: rgba(52, 55, 42, 0.20);
    --reader-panel-hover: rgba(52,55,42,0.08);
    --reader-panel-current-bg: #596044;
    --reader-panel-current-text: #FAFBEF;
    --reader-chrome-text: #34372A;
    --reader-control-bg: rgba(255,255,255,0.24);
    --reader-control-hover: rgba(52,55,42,0.10);
    --reader-accent: #61694B;
    --reader-accent-hover: #727B59;
    --reader-on-accent: #FAFBEF;
}

.reader-body.reader-theme-cocoa {
    --reader-page-bg: #493D39;
    --reader-surface-bg: #5A4A45;
    --reader-content-text: #F1E7E2;
    --reader-muted-text: #C8B7AF;
    --reader-chrome-bg: rgba(90, 74, 69, 0.97);
    --reader-chrome-border: rgba(241, 231, 226, 0.16);
    --reader-panel-bg: #604F49;
    --reader-panel-text: #F1E7E2;
    --reader-panel-muted: #C8B7AF;
    --reader-panel-border: rgba(241,231,226,0.19);
    --reader-panel-hover: rgba(255,255,255,0.07);
    --reader-panel-current-bg: #D8A37E;
    --reader-panel-current-text: #33231E;
    --reader-chrome-text: #F1E7E2;
    --reader-control-bg: rgba(255,255,255,0.07);
    --reader-control-hover: rgba(255,255,255,0.12);
    --reader-accent: #E0AE88;
    --reader-accent-hover: #ECC09E;
    --reader-on-accent: #33231E;
}

.reader-body.reader-theme-plum {
    --reader-page-bg: #1B151F;
    --reader-surface-bg: #241C2B;
    --reader-content-text: #D9CEDF;
    --reader-muted-text: #A99DB0;
    --reader-chrome-bg: rgba(36, 28, 43, 0.97);
    --reader-chrome-border: rgba(217, 206, 223, 0.15);
    --reader-panel-bg: #2A2132;
    --reader-panel-text: #E4D9E9;
    --reader-panel-muted: #AA9DB2;
    --reader-panel-border: rgba(217,206,223,0.18);
    --reader-panel-hover: rgba(255,255,255,0.07);
    --reader-panel-current-bg: #B38BBE;
    --reader-panel-current-text: #231828;
    --reader-chrome-text: #D9CEDF;
    --reader-control-bg: rgba(255,255,255,0.05);
    --reader-control-hover: rgba(255,255,255,0.10);
    --reader-accent: #C19ACB;
    --reader-accent-hover: #D0ADD8;
    --reader-on-accent: #231828;
}