/* ─── Reset ─── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ─── Theme: Gold (current) ─── */
:root, [data-theme="gold"] {
    --topbar-height: clamp(48px, 19vw, 160px);
    --bg-page: #FDB813;
    --bg-topbar: #1a1a1a;
    --bg-sidebar: #1a1a1a;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #c0c0c0;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: #2a2a2a;
    --sidebar-active-border: #FDB813;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.08);
    --sidebar-active-bg: rgba(253, 184, 19, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #888;
    --accent: #FDB813;
    --accent-hover: #c8920a;
    --brand-title: #FDB813;
    --brand-subtitle: #999;
    --hamburger-color: #FDB813;
    --separator: #272727;
    --arrow-color: #666;
    --footer-text: #555;
    --footer-border: rgba(0, 0, 0, 0.1);
    --scrollbar-track: #111;
    --scrollbar-thumb: #444;
}

/* ─── Theme: Parchment ─── */
[data-theme="parchment"] {
    --bg-page: #F5F0E8;
    --bg-topbar: #3B3530;
    --bg-sidebar: #3B3530;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #c4b9a8;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: #4a4239;
    --sidebar-active-border: #FDB813;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.08);
    --sidebar-active-bg: rgba(253, 184, 19, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.2);
    --submenu-text: #9a8e7e;
    --accent: #C8920A;
    --accent-hover: #a6780a;
    --brand-title: #FDB813;
    --brand-subtitle: #9a8e7e;
    --hamburger-color: #FDB813;
    --separator: #4a4239;
    --arrow-color: #7a6e5e;
    --footer-text: #6b6052;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #2e2924;
    --scrollbar-thumb: #5a4e42;
}

/* ─── Theme: Burgundy ─── */
[data-theme="burgundy"] {
    --bg-page: #4A1C2B;
    --bg-topbar: #2E1018;
    --bg-sidebar: #361520;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #d4a8b0;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: #4a1c2b;
    --sidebar-active-border: #FDB813;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.1);
    --sidebar-active-bg: rgba(253, 184, 19, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.2);
    --submenu-text: #b08890;
    --accent: #FDB813;
    --accent-hover: #c8920a;
    --brand-title: #FDB813;
    --brand-subtitle: #b08890;
    --hamburger-color: #FDB813;
    --separator: #4a1c2b;
    --arrow-color: #9a6070;
    --footer-text: #d4a8b0;
    --footer-border: rgba(255, 255, 255, 0.1);
    --scrollbar-track: #2a1018;
    --scrollbar-thumb: #7a3545;
}

/* ─── Theme: Forest Green ─── */
[data-theme="forest"] {
    --bg-page: #1E3A2F;
    --bg-topbar: #121F1A;
    --bg-sidebar: #152A22;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #a8c4b4;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: #1e3a2f;
    --sidebar-active-border: #FDB813;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.08);
    --sidebar-active-bg: rgba(253, 184, 19, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.2);
    --submenu-text: #7a9e8a;
    --accent: #FDB813;
    --accent-hover: #c8920a;
    --brand-title: #FDB813;
    --brand-subtitle: #7a9e8a;
    --hamburger-color: #FDB813;
    --separator: #1e3a2f;
    --arrow-color: #5a8a6a;
    --footer-text: #a8c4b4;
    --footer-border: rgba(255, 255, 255, 0.1);
    --scrollbar-track: #0e1e16;
    --scrollbar-thumb: #3a6a4a;
}

/* ─── Theme: Charcoal + Gold accents ─── */
[data-theme="charcoal"] {
    --bg-page: #FAF7F2;
    --bg-topbar: #1a1a1a;
    --bg-sidebar: #1a1a1a;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #c0c0c0;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: #2a2a2a;
    --sidebar-active-border: #FDB813;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.08);
    --sidebar-active-bg: rgba(253, 184, 19, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #888;
    --accent: #C8920A;
    --accent-hover: #a6780a;
    --brand-title: #FDB813;
    --brand-subtitle: #999;
    --hamburger-color: #FDB813;
    --separator: #272727;
    --arrow-color: #666;
    --footer-text: #6b6052;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #111;
    --scrollbar-thumb: #444;
}

/* ─── Theme: Flieder (Lilac) ─── */
[data-theme="flieder"] {
    --bg-page: #C8A2D4;
    --bg-topbar: #2D1F33;
    --bg-sidebar: #352440;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #cdb8d8;
    --text-sidebar-hover: #F5E6AB;
    --text-sidebar-active: #F5E6AB;
    --sidebar-border: #4a3558;
    --sidebar-active-border: #F5E6AB;
    --sidebar-hover-bg: rgba(245, 230, 171, 0.1);
    --sidebar-active-bg: rgba(245, 230, 171, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.2);
    --submenu-text: #a88cb8;
    --accent: #7B4F8A;
    --accent-hover: #5e3a6a;
    --brand-title: #F5E6AB;
    --brand-subtitle: #a88cb8;
    --hamburger-color: #F5E6AB;
    --separator: #4a3558;
    --arrow-color: #8a6a9a;
    --footer-text: #5e4568;
    --footer-border: rgba(0, 0, 0, 0.1);
    --scrollbar-track: #2a1a32;
    --scrollbar-thumb: #6a4a7a;
}

/* ─── Theme: Deep Plum ─── */
[data-theme="plum"] {
    --bg-page: #352440;
    --bg-topbar: #1E1528;
    --bg-sidebar: #2A1A34;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #cdb8d8;
    --text-sidebar-hover: #F5E6AB;
    --text-sidebar-active: #F5E6AB;
    --sidebar-border: #3d2a4e;
    --sidebar-active-border: #F5E6AB;
    --sidebar-hover-bg: rgba(245, 230, 171, 0.08);
    --sidebar-active-bg: rgba(245, 230, 171, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #9a7eaa;
    --accent: #C8A2D4;
    --accent-hover: #a07ab0;
    --brand-title: #F5E6AB;
    --brand-subtitle: #9a7eaa;
    --hamburger-color: #F5E6AB;
    --separator: #3d2a4e;
    --arrow-color: #7a5a8e;
    --footer-text: #b8a0c4;
    --footer-border: rgba(255, 255, 255, 0.1);
    --scrollbar-track: #1a1228;
    --scrollbar-thumb: #5a3a6e;
}

/* ─── Theme: Lavender Gray ─── */
[data-theme="lavender"] {
    --bg-page: #E0D8E8;
    --bg-topbar: #2D2636;
    --bg-sidebar: #342C3E;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #c4b8d0;
    --text-sidebar-hover: #F5E6AB;
    --text-sidebar-active: #F5E6AB;
    --sidebar-border: #443a50;
    --sidebar-active-border: #F5E6AB;
    --sidebar-hover-bg: rgba(245, 230, 171, 0.08);
    --sidebar-active-bg: rgba(245, 230, 171, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.2);
    --submenu-text: #968aaa;
    --accent: #6B4F7A;
    --accent-hover: #523a60;
    --brand-title: #F5E6AB;
    --brand-subtitle: #968aaa;
    --hamburger-color: #F5E6AB;
    --separator: #443a50;
    --arrow-color: #7a6a8e;
    --footer-text: #5a4e66;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #2a2232;
    --scrollbar-thumb: #5a4a6a;
}

/* ─── Theme: Wien 1790 (historical) ─── */
[data-theme="wien1790"] {
    --bg-page: #E8E2D8;
    --bg-topbar: #2B2622;
    --bg-sidebar: #2B2622;
    --bg-content: #FDFCFA;
    --text-body: #1E1B18;
    --text-sidebar: #bfb5a5;
    --text-sidebar-hover: #B8941F;
    --text-sidebar-active: #B8941F;
    --sidebar-border: #3d362f;
    --sidebar-active-border: #B8941F;
    --sidebar-hover-bg: rgba(184, 148, 31, 0.08);
    --sidebar-active-bg: rgba(184, 148, 31, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.2);
    --submenu-text: #918578;
    --accent: #B8941F;
    --accent-hover: #96780f;
    --brand-title: #B8941F;
    --brand-subtitle: #918578;
    --hamburger-color: #B8941F;
    --separator: #3d362f;
    --arrow-color: #7a6e60;
    --footer-text: #6b6052;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #221e1a;
    --scrollbar-thumb: #5a4e42;
}

/* ─── Theme: Golden Impresario ─── */
[data-theme="impresario"] {
    --bg-page: #FBF9F5;
    --bg-topbar: #1E2229;
    --bg-sidebar: #1E2229;
    --bg-content: #ffffff;
    --text-body: #2B2B2B;
    --text-sidebar: #b0aaa0;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: #2e323a;
    --sidebar-active-border: #FDB813;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.08);
    --sidebar-active-bg: rgba(253, 184, 19, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #888;
    --accent: #FDB813;
    --accent-hover: #d49a0e;
    --brand-title: #FDB813;
    --brand-subtitle: #888;
    --hamburger-color: #FDB813;
    --separator: #2e323a;
    --arrow-color: #666;
    --footer-text: #6b6b6b;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #161a20;
    --scrollbar-thumb: #444;
}

/* ─── Theme: Enlightenment Manuscript ─── */
[data-theme="manuscript"] {
    --bg-page: #F5F2EB;
    --bg-topbar: #1E1E1E;
    --bg-sidebar: #1E1E1E;
    --bg-content: #ffffff;
    --text-body: #3C3530;
    --text-sidebar: #b5a998;
    --text-sidebar-hover: #B2545B;
    --text-sidebar-active: #B2545B;
    --sidebar-border: #2e2e2e;
    --sidebar-active-border: #B2545B;
    --sidebar-hover-bg: rgba(178, 84, 91, 0.08);
    --sidebar-active-bg: rgba(178, 84, 91, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #8a7e72;
    --accent: #B2545B;
    --accent-hover: #8e4048;
    --brand-title: #B2545B;
    --brand-subtitle: #8a7e72;
    --hamburger-color: #B2545B;
    --separator: #2e2e2e;
    --arrow-color: #6a6058;
    --footer-text: #6b6052;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #141414;
    --scrollbar-thumb: #4a4a4a;
}

/* ─── Theme: Magic Flute ─── */
[data-theme="magicflute"] {
    --bg-page: #14161D;
    --bg-topbar: #0D0E12;
    --bg-sidebar: #1C202C;
    --bg-content: #1E2230;
    --text-body: #E2E8F0;
    --text-sidebar: #8898b0;
    --text-sidebar-hover: #009EC2;
    --text-sidebar-active: #009EC2;
    --sidebar-border: #2a3040;
    --sidebar-active-border: #009EC2;
    --sidebar-hover-bg: rgba(0, 158, 194, 0.08);
    --sidebar-active-bg: rgba(0, 158, 194, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.3);
    --submenu-text: #6a7a90;
    --accent: #009EC2;
    --accent-hover: #007a98;
    --brand-title: #009EC2;
    --brand-subtitle: #6a7a90;
    --hamburger-color: #009EC2;
    --separator: #2a3040;
    --arrow-color: #5a6a80;
    --footer-text: #6a7a90;
    --footer-border: rgba(255, 255, 255, 0.06);
    --scrollbar-track: #0a0c12;
    --scrollbar-thumb: #3a4a5a;
}

/* ─── Theme: Viennese Classic ─── */
[data-theme="viennese"] {
    --bg-page: #FBF9F6;
    --bg-topbar: #5C1D24;
    --bg-sidebar: #5C1D24;
    --bg-content: #ffffff;
    --text-body: #2C2A29;
    --text-sidebar: #d4a8a8;
    --text-sidebar-hover: #C5A059;
    --text-sidebar-active: #C5A059;
    --sidebar-border: #722530;
    --sidebar-active-border: #C5A059;
    --sidebar-hover-bg: rgba(197, 160, 89, 0.1);
    --sidebar-active-bg: rgba(197, 160, 89, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.2);
    --submenu-text: #b08080;
    --accent: #C5A059;
    --accent-hover: #a68040;
    --brand-title: #C5A059;
    --brand-subtitle: #b08080;
    --hamburger-color: #C5A059;
    --separator: #722530;
    --arrow-color: #9a6868;
    --footer-text: #6b5858;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #3a1018;
    --scrollbar-thumb: #8a3040;
}

/* ─── Theme: Habsburg Velvet (deep upholstery blue) ─── */
[data-theme="habsburg-velvet"] {
    --bg-page: #2E4A6B;
    --bg-topbar: #1a2a40;
    --bg-sidebar: #22384F;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #a0b8d0;
    --text-sidebar-hover: #C5A059;
    --text-sidebar-active: #C5A059;
    --sidebar-border: #3a5470;
    --sidebar-active-border: #C5A059;
    --sidebar-hover-bg: rgba(197, 160, 89, 0.1);
    --sidebar-active-bg: rgba(197, 160, 89, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #7a98b8;
    --accent: #C5A059;
    --accent-hover: #a68040;
    --brand-title: #C5A059;
    --brand-subtitle: #7a98b8;
    --hamburger-color: #C5A059;
    --separator: #3a5470;
    --arrow-color: #6a8aaa;
    --footer-text: #a0b8d0;
    --footer-border: rgba(255, 255, 255, 0.1);
    --scrollbar-track: #1a2a3e;
    --scrollbar-thumb: #4a6a8a;
}

/* ─── Theme: Habsburg Panel (ceiling/panel blue) ─── */
[data-theme="habsburg-panel"] {
    --bg-page: #F5F7FA;
    --bg-topbar: #4A6A8A;
    --bg-sidebar: #4A6A8A;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #dce6f0;
    --text-sidebar-hover: #C5A059;
    --text-sidebar-active: #C5A059;
    --sidebar-border: #5a7a9a;
    --sidebar-active-border: #C5A059;
    --sidebar-hover-bg: rgba(197, 160, 89, 0.1);
    --sidebar-active-bg: rgba(197, 160, 89, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.15);
    --submenu-text: #b0c8e0;
    --accent: #C5A059;
    --accent-hover: #a68040;
    --brand-title: #C5A059;
    --brand-subtitle: #b0c8e0;
    --hamburger-color: #C5A059;
    --separator: #5a7a9a;
    --arrow-color: #90aac4;
    --footer-text: #5a6a7a;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #3a5a7a;
    --scrollbar-thumb: #6a8aaa;
}

/* ─── Theme: Habsburg Theater (balanced theater blue) ─── */
[data-theme="habsburg-theater"] {
    --bg-page: #3B5575;
    --bg-topbar: #1E3250;
    --bg-sidebar: #2A4262;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #a8c0d8;
    --text-sidebar-hover: #C5A059;
    --text-sidebar-active: #C5A059;
    --sidebar-border: #3f5a78;
    --sidebar-active-border: #C5A059;
    --sidebar-hover-bg: rgba(197, 160, 89, 0.1);
    --sidebar-active-bg: rgba(197, 160, 89, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #7a9ab8;
    --accent: #C5A059;
    --accent-hover: #a68040;
    --brand-title: #C5A059;
    --brand-subtitle: #7a9ab8;
    --hamburger-color: #C5A059;
    --separator: #3f5a78;
    --arrow-color: #6a8aa8;
    --footer-text: #a8c0d8;
    --footer-border: rgba(255, 255, 255, 0.1);
    --scrollbar-track: #182a42;
    --scrollbar-thumb: #4a6a88;
}

/* ─── Theme: Habsburg Ivory (blue-gray sidebar, ivory page) ─── */
[data-theme="habsburg-ivory"] {
    --bg-page: #FDFAF3;
    --bg-topbar: #3a5a78;
    --bg-sidebar: #4A6A8A;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #dce6f0;
    --text-sidebar-hover: #C5A059;
    --text-sidebar-active: #C5A059;
    --sidebar-border: #5a7a9a;
    --sidebar-active-border: #C5A059;
    --sidebar-hover-bg: rgba(197, 160, 89, 0.1);
    --sidebar-active-bg: rgba(197, 160, 89, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.15);
    --submenu-text: #b0c8e0;
    --accent: #C5A059;
    --accent-hover: #a68040;
    --brand-title: #C5A059;
    --brand-subtitle: #b0c8e0;
    --hamburger-color: #C5A059;
    --separator: #5a7a9a;
    --arrow-color: #90aac4;
    --footer-text: #5a6a7a;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #3a5a7a;
    --scrollbar-thumb: #6a8aaa;
}

/* ─── Theme: Habsburg Ivory Light (lighter blue sidebar, ivory page) ─── */
[data-theme="habsburg-ivory-light"] {
    --bg-page: #FDFAF3;
    --bg-topbar: #5E8AAC;
    --bg-sidebar: #6A96B8;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #e8f0f6;
    --text-sidebar-hover: #C5A059;
    --text-sidebar-active: #C5A059;
    --sidebar-border: #7aa6c8;
    --sidebar-active-border: #C5A059;
    --sidebar-hover-bg: rgba(197, 160, 89, 0.12);
    --sidebar-active-bg: rgba(197, 160, 89, 0.15);
    --submenu-bg: rgba(0, 0, 0, 0.1);
    --submenu-text: #c8dce8;
    --accent: #C5A059;
    --accent-hover: #a68040;
    --brand-title: #C5A059;
    --brand-subtitle: #c8dce8;
    --hamburger-color: #C5A059;
    --separator: #7aa6c8;
    --arrow-color: #a0c0d8;
    --footer-text: #5a6a7a;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #5080a0;
    --scrollbar-thumb: #8ab0cc;
}

/* ─── Theme: Habsburg Silver (silvery blue sidebar, ivory page) ─── */
[data-theme="habsburg-silver"] {
    --bg-page: #FDFAF3;
    --bg-topbar: #5A6A78;
    --bg-sidebar: #6B7D8E;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #e4eaf0;
    --text-sidebar-hover: #C5A059;
    --text-sidebar-active: #C5A059;
    --sidebar-border: #7e90a0;
    --sidebar-active-border: #C5A059;
    --sidebar-hover-bg: rgba(197, 160, 89, 0.12);
    --sidebar-active-bg: rgba(197, 160, 89, 0.15);
    --submenu-bg: rgba(0, 0, 0, 0.1);
    --submenu-text: #c4d0dc;
    --accent: #C5A059;
    --accent-hover: #a68040;
    --brand-title: #C5A059;
    --brand-subtitle: #c4d0dc;
    --hamburger-color: #C5A059;
    --separator: #7e90a0;
    --arrow-color: #a0b4c4;
    --footer-text: #5a6470;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #4e5e6e;
    --scrollbar-thumb: #8a9aaa;
}

/* ─── Theme: Habsburg Ivory Inverted (blue page, ivory sidebar) ─── */
[data-theme="habsburg-ivory-inv"] {
    --bg-page: #4A6A8A;
    --bg-topbar: #FDFAF3;
    --bg-sidebar: #FDFAF3;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #4a5a6a;
    --text-sidebar-hover: #C5A059;
    --text-sidebar-active: #C5A059;
    --sidebar-border: #e8e2d8;
    --sidebar-active-border: #C5A059;
    --sidebar-hover-bg: rgba(197, 160, 89, 0.1);
    --sidebar-active-bg: rgba(197, 160, 89, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.04);
    --submenu-text: #6a7a8a;
    --accent: #C5A059;
    --accent-hover: #a68040;
    --brand-title: #C5A059;
    --brand-subtitle: #6a7a8a;
    --hamburger-color: #C5A059;
    --separator: #e0d8cc;
    --arrow-color: #8a8070;
    --footer-text: #dce6f0;
    --footer-border: rgba(255, 255, 255, 0.12);
    --scrollbar-track: #e8e2d8;
    --scrollbar-thumb: #c0b8a8;
}

/* ─── Theme: Habsburg Ivory Light Inverted (lighter blue page, light ivory sidebar) ─── */
[data-theme="habsburg-ivory-light-inv"] {
    --bg-page: #6A96B8;
    --bg-topbar: #FDFAF3;
    --bg-sidebar: #FDFAF3;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #4a5a6a;
    --text-sidebar-hover: #C5A059;
    --text-sidebar-active: #C5A059;
    --sidebar-border: #e8e2d8;
    --sidebar-active-border: #C5A059;
    --sidebar-hover-bg: rgba(197, 160, 89, 0.1);
    --sidebar-active-bg: rgba(197, 160, 89, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.04);
    --submenu-text: #6a7a8a;
    --accent: #C5A059;
    --accent-hover: #a68040;
    --brand-title: #C5A059;
    --brand-subtitle: #6a7a8a;
    --hamburger-color: #C5A059;
    --separator: #e0d8cc;
    --arrow-color: #8a8070;
    --footer-text: #e8f0f6;
    --footer-border: rgba(255, 255, 255, 0.12);
    --scrollbar-track: #e8e2d8;
    --scrollbar-thumb: #c0b8a8;
}

/* ─── Theme: Theatrical Velvet ─── */
[data-theme="theatrical-velvet"] {
    --bg-page: #895AA8;
    --bg-topbar: #895AA8;
    --bg-sidebar: #C8A2D4;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #1B0228;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: transparent;
    --sidebar-active-border: #895AA8;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.12);
    --sidebar-active-bg: #895AA8;
    --submenu-bg: rgba(0, 0, 0, 0.08);
    --submenu-text: #3a1848;
    --accent: #FDB813;
    --accent-hover: #c8920a;
    --brand-title: #1B0228;
    --brand-subtitle: #3a1848;
    --hamburger-color: #FDB813;
    --separator: #b090c0;
    --arrow-color: #4a2858;
    --footer-text: #2a1038;
    --footer-border: rgba(0, 0, 0, 0.1);
    --scrollbar-track: #a888c0;
    --scrollbar-thumb: #6a3a88;
}

/* Theatrical Velvet: Placard effect for active menu items */
[data-theme="theatrical-velvet"] .sidebar {
    border-right: none;
    overflow-y: overlay;
}

[data-theme="theatrical-velvet"] .menu-link:hover,
[data-theme="theatrical-velvet"] .menu-toggle:hover,
[data-theme="theatrical-velvet"] .menu-link-parent:hover {
    background-color: rgba(137, 90, 168, 0.3);
    color: #FDB813;
    font-weight: bold;
}

[data-theme="theatrical-velvet"] .menu-link-with-toggle:hover {
    background-color: rgba(137, 90, 168, 0.3);
}

[data-theme="theatrical-velvet"] .menu-link-with-toggle:hover .menu-link-parent {
    background-color: transparent;
    color: #FDB813;
    font-weight: bold;
}

[data-theme="theatrical-velvet"] .menu-link-with-toggle:hover .menu-toggle-arrow {
    background-color: transparent;
}

[data-theme="theatrical-velvet"] .menu-link-with-toggle:hover .menu-arrow {
    color: #FDB813;
}

[data-theme="theatrical-velvet"] .submenu {
    background-color: transparent;
}

[data-theme="theatrical-velvet"] .submenu-link {
    font-size: 0.93em;
}

[data-theme="theatrical-velvet"] .submenu-link:hover {
    background-color: rgba(137, 90, 168, 0.3);
    color: #FDB813;
    border-left-color: transparent;
    font-weight: bold;
}

[data-theme="theatrical-velvet"] .menu-link.active,
[data-theme="theatrical-velvet"] .menu-toggle.active,
[data-theme="theatrical-velvet"] .menu-link-parent.active {
    background-color: #895AA8;
    color: #FDB813;
    border-left: 3px solid #FDB813;
    border-radius: 0;
    margin: 0 -4px 0 0;
    padding: 13px 22px 13px 18px;
    font-weight: bold;
    font-size: 0.97em;
    box-shadow: 4px 0 0 0 #895AA8;
}

[data-theme="theatrical-velvet"] .submenu-link.active {
    background-color: #895AA8;
    color: #FDB813;
    border-left: 3px solid #FDB813;
    border-radius: 0;
    margin: 0 -4px 0 0;
    padding: 11px 22px 11px 32px;
    font-weight: bold;
    font-size: 0.9em;
    box-shadow: 4px 0 0 0 #895AA8;
}

[data-theme="theatrical-velvet"] .menu-link-with-toggle:has(.menu-link-parent.active) {
    background-color: #895AA8;
    margin: 0 -4px 0 0;
    box-shadow: 4px 0 0 0 #895AA8;
    border-left: 3px solid #FDB813;
}

[data-theme="theatrical-velvet"] .menu-link-with-toggle:has(.menu-link-parent.active) .menu-link-parent {
    border-left: none;
    background-color: transparent;
}

[data-theme="theatrical-velvet"] .menu-link-with-toggle:has(.menu-link-parent.active) .menu-toggle-arrow {
    background-color: transparent;
    border-left-color: rgba(253, 184, 19, 0.3);
}

[data-theme="theatrical-velvet"] .menu-link-with-toggle:has(.menu-link-parent.active) .menu-arrow {
    color: #FDB813;
}

/* ─── Theme: Inkunabel & Schiller (Archival Monochromatic) ─── */
[data-theme="inkunabel"] {
    --bg-page: #2E3136;
    --bg-topbar: #1A1C1E;
    --bg-sidebar: #1A1C1E;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #ECEFF1;
    --text-sidebar-hover: #8C2D38;
    --text-sidebar-active: #8C2D38;
    --sidebar-border: #2a2c2e;
    --sidebar-active-border: #8C2D38;
    --sidebar-hover-bg: rgba(140, 45, 56, 0.1);
    --sidebar-active-bg: rgba(140, 45, 56, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.25);
    --submenu-text: #a0a4a8;
    --accent: #8C2D38;
    --accent-hover: #6e2028;
    --brand-title: #ECEFF1;
    --brand-subtitle: #a0a4a8;
    --hamburger-color: #ECEFF1;
    --separator: #2a2c2e;
    --arrow-color: #6a6e72;
    --footer-text: #b0b4b8;
    --footer-border: rgba(255, 255, 255, 0.08);
    --scrollbar-track: #141618;
    --scrollbar-thumb: #3a3e42;
}

/* ─── Theme: Bibliothek (Academic Prestige Green) ─── */
[data-theme="bibliothek"] {
    --bg-page: #2A3631;
    --bg-topbar: #191F1D;
    --bg-sidebar: #191F1D;
    --bg-content: #ffffff;
    --text-body: #1C1A17;
    --text-sidebar: #c4d0c8;
    --text-sidebar-hover: #D1A153;
    --text-sidebar-active: #D1A153;
    --sidebar-border: #2a3430;
    --sidebar-active-border: #D1A153;
    --sidebar-hover-bg: rgba(209, 161, 83, 0.1);
    --sidebar-active-bg: rgba(209, 161, 83, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #8a9e90;
    --accent: #D1A153;
    --accent-hover: #b08838;
    --brand-title: #D1A153;
    --brand-subtitle: #8a9e90;
    --hamburger-color: #D1A153;
    --separator: #2a3430;
    --arrow-color: #6a8070;
    --footer-text: #8a9e90;
    --footer-border: rgba(255, 255, 255, 0.08);
    --scrollbar-track: #121816;
    --scrollbar-thumb: #3a4e42;
}

/* ─── Theme: Suhrkamp Editorial (Modern Light Minimalist) ─── */
[data-theme="suhrkamp"] {
    --bg-page: #EFECE6;
    --bg-topbar: #24211E;
    --bg-sidebar: #24211E;
    --bg-content: #ffffff;
    --text-body: #2B2B2B;
    --text-sidebar: #d4cec4;
    --text-sidebar-hover: #2C4A5E;
    --text-sidebar-active: #2C4A5E;
    --sidebar-border: #342f2a;
    --sidebar-active-border: #2C4A5E;
    --sidebar-hover-bg: rgba(44, 74, 94, 0.1);
    --sidebar-active-bg: rgba(44, 74, 94, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.2);
    --submenu-text: #9a9488;
    --accent: #2C4A5E;
    --accent-hover: #1e3440;
    --brand-title: #d4cec4;
    --brand-subtitle: #9a9488;
    --hamburger-color: #d4cec4;
    --separator: #342f2a;
    --arrow-color: #7a7468;
    --footer-text: #5a5448;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #1a1816;
    --scrollbar-thumb: #4a4438;
}

/* ─── Theme: Photo Background (blurred images) ─── */
[data-theme="photo-bg"] {
    --bg-page: #2a2a2a;
    --bg-topbar: rgba(26, 26, 26, 0.7);
    --bg-sidebar: rgba(26, 26, 26, 0.7);
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #d0d0d0;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: rgba(255, 255, 255, 0.1);
    --sidebar-active-border: #FDB813;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.1);
    --sidebar-active-bg: rgba(253, 184, 19, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.3);
    --submenu-text: #999;
    --accent: #FDB813;
    --accent-hover: #c8920a;
    --brand-title: #FDB813;
    --brand-subtitle: #999;
    --hamburger-color: #FDB813;
    --separator: rgba(255, 255, 255, 0.12);
    --arrow-color: #777;
    --footer-text: #ccc;
    --footer-border: rgba(255, 255, 255, 0.1);
    --scrollbar-track: rgba(0, 0, 0, 0.3);
    --scrollbar-thumb: rgba(255, 255, 255, 0.2);
}

/* ─── Theme: Schikaneder Autograph – Wax Seal Crimson ─── */
[data-theme="autograph-crimson"] {
    --bg-page: #542521;
    --bg-topbar: #1C1C1C;
    --bg-sidebar: #1C1C1C;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #c0b0a8;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: #2a2a2a;
    --sidebar-active-border: #FDB813;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.1);
    --sidebar-active-bg: rgba(253, 184, 19, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #8a7a72;
    --accent: #FDB813;
    --accent-hover: #c8920a;
    --brand-title: #FDB813;
    --brand-subtitle: #8a7a72;
    --hamburger-color: #FDB813;
    --separator: #2a2a2a;
    --arrow-color: #6a5a52;
    --footer-text: #d4b8a8;
    --footer-border: rgba(255, 255, 255, 0.1);
    --scrollbar-track: #141010;
    --scrollbar-thumb: #5a3a38;
}

/* ─── Theme: Schikaneder Autograph – Aged Parchment ─── */
[data-theme="autograph-parchment"] {
    --bg-page: #EAE6DF;
    --bg-topbar: #1C1C1C;
    --bg-sidebar: #1C1C1C;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #b8b0a4;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: #2a2a2a;
    --sidebar-active-border: #FDB813;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.08);
    --sidebar-active-bg: rgba(253, 184, 19, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #888078;
    --accent: #FDB813;
    --accent-hover: #c8920a;
    --brand-title: #FDB813;
    --brand-subtitle: #888078;
    --hamburger-color: #FDB813;
    --separator: #2a2a2a;
    --arrow-color: #6a6258;
    --footer-text: #5a5448;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #121212;
    --scrollbar-thumb: #444038;
}

/* ─── Theme: Schikaneder Autograph – Museum Grey ─── */
[data-theme="autograph-museum"] {
    --bg-page: #E5E2DA;
    --bg-topbar: #1C1C1C;
    --bg-sidebar: #1C1C1C;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #b4b0a8;
    --text-sidebar-hover: #FDB813;
    --text-sidebar-active: #FDB813;
    --sidebar-border: #2a2a2a;
    --sidebar-active-border: #FDB813;
    --sidebar-hover-bg: rgba(253, 184, 19, 0.08);
    --sidebar-active-bg: rgba(253, 184, 19, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #86807a;
    --accent: #FDB813;
    --accent-hover: #c8920a;
    --brand-title: #FDB813;
    --brand-subtitle: #86807a;
    --hamburger-color: #FDB813;
    --separator: #2a2a2a;
    --arrow-color: #686058;
    --footer-text: #58524a;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #121212;
    --scrollbar-thumb: #44403a;
}

/* ─── Theme: Heidelberg Summer (Lilac, Rose & Soft Cream) ─── */
[data-theme="heidelberg-summer"] {
    --bg-page: #F5EFF6;
    --bg-topbar: #ffffff;
    --bg-sidebar: #ffffff;
    --bg-content: #ffffff;
    --text-body: #2D2522;
    --text-sidebar: #4a4048;
    --text-sidebar-hover: #C58B95;
    --text-sidebar-active: #C58B95;
    --sidebar-border: #e8dce8;
    --sidebar-active-border: #C58B95;
    --sidebar-hover-bg: rgba(197, 139, 149, 0.08);
    --sidebar-active-bg: rgba(197, 139, 149, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.03);
    --submenu-text: #7a6a72;
    --accent: #C58B95;
    --accent-hover: #a06a74;
    --brand-title: #C58B95;
    --brand-subtitle: #7a6a72;
    --hamburger-color: #C58B95;
    --separator: #e8dce8;
    --arrow-color: #a090a0;
    --footer-text: #5a4e54;
    --footer-border: rgba(0, 0, 0, 0.06);
    --scrollbar-track: #f0e8f0;
    --scrollbar-thumb: #c8b8c8;
}

/* ─── Theme: Imperial Schikaneder Gold ─── */
[data-theme="imperial-gold"] {
    --bg-page: #E5A823;
    --bg-topbar: #1C1A1A;
    --bg-sidebar: #1C1A1A;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #c0b8a8;
    --text-sidebar-hover: #E5A823;
    --text-sidebar-active: #E5A823;
    --sidebar-border: #2e2a28;
    --sidebar-active-border: #E5A823;
    --sidebar-hover-bg: rgba(229, 168, 35, 0.1);
    --sidebar-active-bg: rgba(229, 168, 35, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #8a8070;
    --accent: #E5A823;
    --accent-hover: #c08a10;
    --brand-title: #E5A823;
    --brand-subtitle: #8a8070;
    --hamburger-color: #E5A823;
    --separator: #2e2a28;
    --arrow-color: #6a6050;
    --footer-text: #3a3530;
    --footer-border: rgba(0, 0, 0, 0.12);
    --scrollbar-track: #141212;
    --scrollbar-thumb: #4a4238;
}

/* ─── Theme: Austrian Biedermeier Rose ─── */
[data-theme="biedermeier-rose"] {
    --bg-page: #D06A6B;
    --bg-topbar: #1C1A1A;
    --bg-sidebar: #1C1A1A;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #d4b0b0;
    --text-sidebar-hover: #F5D0C0;
    --text-sidebar-active: #F5D0C0;
    --sidebar-border: #2e2424;
    --sidebar-active-border: #F5D0C0;
    --sidebar-hover-bg: rgba(245, 208, 192, 0.1);
    --sidebar-active-bg: rgba(245, 208, 192, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #a08080;
    --accent: #D06A6B;
    --accent-hover: #a84a4b;
    --brand-title: #F5D0C0;
    --brand-subtitle: #a08080;
    --hamburger-color: #F5D0C0;
    --separator: #2e2424;
    --arrow-color: #8a6060;
    --footer-text: #2a1818;
    --footer-border: rgba(0, 0, 0, 0.12);
    --scrollbar-track: #141010;
    --scrollbar-thumb: #5a3838;
}

/* ─── Theme: Schloss Theater Teal ─── */
[data-theme="schloss-teal"] {
    --bg-page: #206A73;
    --bg-topbar: #1C1A1A;
    --bg-sidebar: #1C1A1A;
    --bg-content: #ffffff;
    --text-body: #2c2c2c;
    --text-sidebar: #a0c4c8;
    --text-sidebar-hover: #60D4D8;
    --text-sidebar-active: #60D4D8;
    --sidebar-border: #2a2e2e;
    --sidebar-active-border: #60D4D8;
    --sidebar-hover-bg: rgba(96, 212, 216, 0.08);
    --sidebar-active-bg: rgba(96, 212, 216, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #7a9ea0;
    --accent: #60D4D8;
    --accent-hover: #40b0b4;
    --brand-title: #60D4D8;
    --brand-subtitle: #7a9ea0;
    --hamburger-color: #60D4D8;
    --separator: #2a2e2e;
    --arrow-color: #5a8a8e;
    --footer-text: #c8e8ea;
    --footer-border: rgba(255, 255, 255, 0.1);
    --scrollbar-track: #121616;
    --scrollbar-thumb: #3a5a5e;
}

/* ─── Theme: Expressionist Yellow ─── */
[data-theme="expressionist"] {
    --bg-page: #FDFDFB;
    --bg-topbar: #232B32;
    --bg-sidebar: #232B32;
    --bg-content: #ffffff;
    --text-body: #232B32;
    --text-sidebar: #b0b8c0;
    --text-sidebar-hover: #F1A208;
    --text-sidebar-active: #F1A208;
    --sidebar-border: #2e363e;
    --sidebar-active-border: #F1A208;
    --sidebar-hover-bg: rgba(241, 162, 8, 0.08);
    --sidebar-active-bg: rgba(241, 162, 8, 0.1);
    --submenu-bg: rgba(0, 0, 0, 0.22);
    --submenu-text: #8090a0;
    --accent: #F1A208;
    --accent-hover: #c88506;
    --brand-title: #F1A208;
    --brand-subtitle: #8090a0;
    --hamburger-color: #F1A208;
    --separator: #2e363e;
    --arrow-color: #6a7a8a;
    --footer-text: #5a6068;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #1a2028;
    --scrollbar-thumb: #3e4a54;
}

/* ─── Theme: Heidelberg Romantic ─── */
[data-theme="heidelberg"] {
    --bg-page: #FAF6F8;
    --bg-topbar: #3A3042;
    --bg-sidebar: #3A3042;
    --bg-content: #ffffff;
    --text-body: #3A3042;
    --text-sidebar: #c4b8cc;
    --text-sidebar-hover: #D19CA4;
    --text-sidebar-active: #D19CA4;
    --sidebar-border: #4a3e54;
    --sidebar-active-border: #D19CA4;
    --sidebar-hover-bg: rgba(209, 156, 164, 0.1);
    --sidebar-active-bg: rgba(209, 156, 164, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.2);
    --submenu-text: #9a8aa4;
    --accent: #D19CA4;
    --accent-hover: #b07a82;
    --brand-title: #D19CA4;
    --brand-subtitle: #9a8aa4;
    --hamburger-color: #D19CA4;
    --separator: #4a3e54;
    --arrow-color: #7a6e88;
    --footer-text: #5a4e60;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #2e2438;
    --scrollbar-thumb: #5a4e66;
}

/* ─── Theme: Contemporary Culture ─── */
[data-theme="contemporary"] {
    --bg-page: #F7F5F0;
    --bg-topbar: #6B5E7B;
    --bg-sidebar: #6B5E7B;
    --bg-content: #ffffff;
    --text-body: #3a3540;
    --text-sidebar: #dcd4e4;
    --text-sidebar-hover: #EAA816;
    --text-sidebar-active: #EAA816;
    --sidebar-border: #7e7090;
    --sidebar-active-border: #EAA816;
    --sidebar-hover-bg: rgba(234, 168, 22, 0.1);
    --sidebar-active-bg: rgba(234, 168, 22, 0.12);
    --submenu-bg: rgba(0, 0, 0, 0.15);
    --submenu-text: #b8a8c8;
    --accent: #EAA816;
    --accent-hover: #c08a0e;
    --brand-title: #EAA816;
    --brand-subtitle: #b8a8c8;
    --hamburger-color: #EAA816;
    --separator: #7e7090;
    --arrow-color: #a090b4;
    --footer-text: #5a5060;
    --footer-border: rgba(0, 0, 0, 0.08);
    --scrollbar-track: #5a4e6a;
    --scrollbar-thumb: #8a7e9a;
}

/* ─── Base ─── */
body {
    font-family: Georgia, 'Times New Roman', serif;
    background-color: var(--bg-page);
    color: var(--text-body);
    line-height: 1.6;
}

/* ─── Topbar ─── */

.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topbar-height);
    background-color: var(--bg-topbar);
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
    overflow: hidden;
}

.topbar-logo {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(calc(-50% + 115px));
    height: 100%;
    width: auto;
    display: block;
    mask-image: linear-gradient(to right,
        transparent 0%,
        rgba(0,0,0,0.05) 5%,
        rgba(0,0,0,0.2) 9%,
        rgba(0,0,0,0.5) 12%,
        rgba(0,0,0,0.85) 14%,
        black 16%,
        black 84%,
        rgba(0,0,0,0.85) 86%,
        rgba(0,0,0,0.5) 88%,
        rgba(0,0,0,0.2) 91%,
        rgba(0,0,0,0.05) 95%,
        transparent 100%
    );
    -webkit-mask-image: linear-gradient(to right,
        transparent 0%,
        rgba(0,0,0,0.05) 5%,
        rgba(0,0,0,0.2) 9%,
        rgba(0,0,0,0.5) 12%,
        rgba(0,0,0,0.85) 14%,
        black 16%,
        black 84%,
        rgba(0,0,0,0.85) 86%,
        rgba(0,0,0,0.5) 88%,
        rgba(0,0,0,0.2) 91%,
        rgba(0,0,0,0.05) 95%,
        transparent 100%
    );
}

[data-theme="photo-bg"] .topbar-logo {
    display: none;
}

[data-theme="photo-bg"] .topbar::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/img/background_side.jpg');
    background-size: cover;
    background-position: center;
    filter: blur(6px);
    -webkit-filter: blur(6px);
    z-index: -1;
    mask-image: none;
    -webkit-mask-image: none;
}

.topbar::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.topbar-inner {
    height: 100%;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

/* Seal — pinned to left */
.seal-link {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
}

/* Hamburger — hidden on desktop, shown on mobile/tablet */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background-color 0.15s;
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
}

.hamburger:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--hamburger-color);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.2s ease;
    transform-origin: center;
}

.hamburger.is-active span:nth-child(1) { transform: translateY(7px)  rotate(45deg); }
.hamburger.is-active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.seal {
    width: 52px;
    height: 52px;
    flex-shrink: 0;
    border-radius: 50%;
    object-fit: cover;
}

.brand-title {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 2em;
    font-weight: normal;
    color: #f0e6d3;
    letter-spacing: 1.5px;
    line-height: 1.2;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.brand-subtitle {
    display: none;
}

/* ─── Sidebar ─── */

.sidebar {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    width: 230px;
    height: calc(100vh - var(--topbar-height));
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--sidebar-border);
    overflow-y: auto;
    z-index: 90;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

[data-theme="photo-bg"] .sidebar::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('/img/background_side.jpg');
    background-size: cover;
    background-position: center;
    filter: blur(6px);
    -webkit-filter: blur(6px);
    z-index: -1;
}

.sidebar::-webkit-scrollbar        { width: 4px; }
.sidebar::-webkit-scrollbar-track  { background: var(--scrollbar-track); }
.sidebar::-webkit-scrollbar-thumb  { background: var(--scrollbar-thumb); border-radius: 2px; }

.sidebar-menu {
    list-style: none;
    padding: 14px 0;
}

.menu-item {
    /* no position: relative needed */
}

/* Shared base for top-level links and toggle buttons */
.menu-link,
.menu-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 18px;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 0.93em;
    color: var(--text-sidebar);
    text-decoration: none;
    background: none;
    border: none;
    border-left: 3px solid transparent;
    width: 100%;
    text-align: left;
    cursor: pointer;
    letter-spacing: 0.3px;
    transition: background-color 0.15s, color 0.15s, border-left-color 0.15s;
}

.menu-link:hover,
.menu-toggle:hover {
    background-color: var(--sidebar-hover-bg);
    color: var(--text-sidebar-hover);
}

.menu-link.active,
.menu-toggle.active {
    color: var(--text-sidebar-active);
    border-left-color: var(--sidebar-active-border);
    background-color: var(--sidebar-active-bg);
}

/* Expand/collapse arrow */
.menu-arrow {
    font-size: 0.6em;
    color: var(--arrow-color);
    flex-shrink: 0;
    margin-left: 6px;
    transition: transform 0.22s ease, color 0.15s;
    /* Unicode triangle rendered as arrow */
    line-height: 1;
}

.menu-toggle[aria-expanded="true"] .menu-arrow {
    transform: rotate(180deg);
    color: var(--text-sidebar-active);
}

/* ─── Submenu ─── */

.submenu {
    list-style: none;
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.28s ease-out;
    background-color: var(--submenu-bg);
}

.submenu.is-open {
    max-height: 300px;
}

.submenu-link {
    display: block;
    padding: 9px 18px 9px 32px;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 0.86em;
    color: var(--submenu-text);
    text-decoration: none;
    border-left: 3px solid transparent;
    letter-spacing: 0.2px;
    transition: background-color 0.15s, color 0.15s, border-left-color 0.15s;
}

.submenu-link:hover {
    color: var(--text-sidebar-hover);
    background-color: var(--sidebar-hover-bg);
    border-left-color: var(--sidebar-active-border);
}

.submenu-link.active {
    color: var(--text-sidebar-active);
    border-left-color: var(--sidebar-active-border);
    background-color: var(--sidebar-active-bg);
}

/* Thin rule before utility links */
.menu-separator {
    height: 1px;
    background-color: var(--separator);
    margin: 10px 0;
}

/* ─── Split menu item: link + arrow toggle ─── */

.menu-link-with-toggle {
    display: flex;
    align-items: center;
}

.menu-link-with-toggle .menu-link-parent {
    flex: 1;
    border-right: none;
}

.menu-toggle-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    padding: 11px 0;
    background: none;
    border: none;
    border-left: 1px solid var(--separator);
    cursor: pointer;
    transition: background-color 0.15s;
}

.menu-toggle-arrow:hover {
    background-color: var(--sidebar-hover-bg);
}

.menu-toggle-arrow .menu-arrow {
    font-size: 0.6em;
    color: var(--arrow-color);
    transition: transform 0.22s ease, color 0.15s;
    line-height: 1;
}

.menu-toggle-arrow[aria-expanded="true"] .menu-arrow {
    transform: rotate(180deg);
    color: var(--text-sidebar-active);
}

/* ─── Overlay (mobile backdrop) ─── */

.sidebar-overlay {
    display: none;
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 89;
    cursor: pointer;
}

.sidebar-overlay.is-visible {
    display: block;
}

/* ─── Floating Nav mode ─── */

.topbar-img-left .topbar {
    background-position: left center;
}

.floating-nav .sidebar {
    background-color: transparent;
    border-right: none;
}

.floating-nav .main-content {
    margin-left: 0;
}

.floating-nav .site-footer {
    left: 0;
}

.floating-nav .main-content::before {
    left: 0;
}

.floating-nav .sidebar-menu {
    background-color: var(--bg-content, #ffffff);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    margin: 16px 12px;
    padding: 14px 0;
}

.floating-nav .sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.floating-nav .menu-separator {
    background-color: rgba(0, 0, 0, 0.08);
}

.floating-nav .menu-link,
.floating-nav .menu-toggle,
.floating-nav .menu-link-parent {
    color: #2c2c2c;
}

.floating-nav .menu-link:hover,
.floating-nav .menu-toggle:hover,
.floating-nav .menu-link-parent:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: #000;
}

.floating-nav .menu-link.active,
.floating-nav .menu-toggle.active,
.floating-nav .menu-link-parent.active {
    color: var(--accent);
    border-left-color: var(--accent);
    background-color: rgba(0, 0, 0, 0.04);
}

.floating-nav .submenu {
    background-color: rgba(0, 0, 0, 0.03);
}

.floating-nav .submenu-link {
    color: #555;
}

.floating-nav .submenu-link:hover {
    color: var(--accent);
    background-color: rgba(0, 0, 0, 0.04);
    border-left-color: var(--accent);
}

.floating-nav .submenu-link.active {
    color: var(--accent);
    border-left-color: var(--accent);
    background-color: rgba(0, 0, 0, 0.05);
}

.floating-nav .menu-arrow {
    color: #888;
}

.floating-nav .menu-toggle[aria-expanded="true"] .menu-arrow,
.floating-nav .menu-toggle-arrow[aria-expanded="true"] .menu-arrow {
    color: var(--accent);
}

/* ─── Main content ─── */

.main-content {
    margin-left: 230px;
    padding-top: var(--topbar-height);
    min-height: 100vh;
    background-color: var(--bg-page);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.main-content::before {
    content: '';
    position: fixed;
    top: var(--topbar-height);
    left: 230px;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
}

[data-theme="photo-bg"] .main-content::before {
    background-image: url('/img/background3.JPG');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;

}

.main-content > * {
    position: relative;
    z-index: 1;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 24px 80px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.content-box {
    background-color: var(--bg-content);
    padding: 60px 50px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    text-align: center;
    width: 100%;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 30px;
    color: #1a1a1a;
    font-weight: normal;
    letter-spacing: 1px;
}

.subtitle {
    font-size: 1.6em;
    color: #555;
    margin-bottom: 40px;
    font-style: italic;
}

.main-text {
    font-size: 1.1em;
    margin-bottom: 30px;
    text-align: justify;
    line-height: 1.8;
}

.status {
    font-size: 1.05em;
    color: #2c2c2c;
    padding: 20px;
    background-color: #FFF9E6;
    border-left: 4px solid var(--accent);
    margin-top: 30px;
    text-align: justify;
}

.status strong {
    display: block;
    text-align: center;
    margin-bottom: 6px;
}

.footer {
    margin-top: 40px;
    font-size: 0.9em;
    color: #1a1a1a;
}

hr {
    border: none;
    border-top: 2px solid var(--accent);
    margin: 30px auto;
    width: 60%;
}

/* ─── Termine list ─── */

.termine-list {
    width: 100%;
}

.termin-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 0 24px;
    padding: 20px 16px;
    align-items: start;
    text-align: left;
}

.termin-row:nth-child(odd)  { background-color: #ffffff; }
.termin-row:nth-child(even) { background-color: #ffffff; }

.termin-datum {
    font-weight: bold;
    font-size: 0.93em;
    padding-top: 2px;
}

.termin-info {
    display: flex;
    flex-direction: column;
}

.termin-titel {
    font-weight: bold;
    font-size: 1.02em;
    margin-bottom: 3px;
}

.termin-veranstaltung {
    font-style: italic;
    color: #555;
    font-size: 0.93em;
}

.termin-ort-block {
    margin-top: 14px;
    font-size: 0.9em;
    line-height: 1.6;
    color: #444;
}

.termin-details-link {
    display: inline-block;
    margin-top: 12px;
    font-size: 0.9em;
    color: #1a1a1a;
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.15s;
}

.termin-details-link:hover { color: var(--accent-hover); }

.termin-leer {
    color: #777;
    font-style: italic;
}

/* ─── Event detail ─── */

.back-link {
    display: inline-block;
    font-size: 0.9em;
    color: #666;
    text-decoration: none;
    margin-bottom: 22px;
    transition: color 0.15s;
}

.back-link:hover { color: #1a1a1a; }

.event-meta {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 20px;
    margin-bottom: 28px;
    font-size: 1em;
    line-height: 1.6;
    text-align: left;
}

.event-meta dt {
    font-weight: bold;
    color: #444;
    white-space: nowrap;
    padding-top: 1px;
}

.event-meta dd {
    margin: 0;
}

.impressum-heading {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 1.05em;
    font-weight: bold;
    font-style: normal;
    color: #1a1a1a;
    margin-top: 32px;
    margin-bottom: 12px;
    text-align: left;
}

.impressum-block .event-meta {
    margin-bottom: 0;
}

.impressum-text {
    font-size: 0.95em;
    text-align: left;
    line-height: 1.75;
    color: #2c2c2c;
    margin-top: 12px;
}

.impressum-text a {
    color: #1a1a1a;
    text-underline-offset: 2px;
}

.links-heading {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 1.1em;
    font-weight: bold;
    font-style: normal;
    color: #1a1a1a;
    margin-top: 28px;
    margin-bottom: 10px;
    text-align: left;
}

.links-list {
    list-style: none;
    padding: 0;
    text-align: left;
}

.links-list li {
    margin-bottom: 6px;
}

.links-list a {
    color: #1a1a1a;
    text-decoration: underline;
    text-underline-offset: 2px;
    font-size: 0.95em;
    word-break: break-all;
    transition: color 0.15s;
}

.links-list a:hover { color: var(--accent-hover); }

/* ─── Responsive: tablet and below (≤1024 px) ─── */

@media (max-width: 1024px) {
    :root { --topbar-height: clamp(42px, 12vw, 100px); }

    .topbar-logo {
        height: 100%;
        max-width: calc(100% - 60px);
        object-fit: contain;
        left: 50%;
        transform: translateX(-50%);
    }

    .hamburger {
        display: flex;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar-overlay { }

    .sidebar.is-open {
        transform: translateX(0);
        box-shadow: 4px 0 28px rgba(0, 0, 0, 0.45);
    }

    .main-content {
        margin-left: 0;
    }
}

/* ─── Small mobile ─── */

@media (max-width: 600px) {
    :root { --topbar-height: clamp(36px, 9vw, 55px); }

    .topbar-inner { padding: 0 16px; }

    .seal { width: 42px; height: 42px; }

    .brand-title { font-size: 1.1em; }

    .brand-subtitle { display: none; }

    .content-box { padding: 36px 22px; }

    h1 { font-size: 1.9em; }

    .subtitle { font-size: 1.25em; }

    .termin-row {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .termin-datum {
        font-size: 0.85em;
        color: #555;
    }

    .event-meta {
        gap: 6px 14px;
        font-size: 0.95em;
    }
}

/* ─── Contact form ─── */

.kontakt-form {
    text-align: left;
    margin-top: 10px;
}

.form-group {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 0 20px;
    align-items: start;
    margin-bottom: 20px;
}

.form-group label {
    font-size: 0.95em;
    font-weight: bold;
    color: #1a1a1a;
    text-align: left;
    padding-top: 10px;
}

.form-group-full {
    grid-template-columns: 1fr;
}

.form-input-wrap {
    display: flex;
    flex-direction: column;
}

.required {
    color: #c0392b;
    font-size: 0.7em;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 0.95em;
    border: 2px solid #ddd;
    border-radius: 4px;
    background-color: #fefefe;
    color: #2c2c2c;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(253, 184, 19, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

.input-error {
    border-color: #c0392b !important;
    box-shadow: 0 0 0 2px rgba(192, 57, 43, 0.15) !important;
}

.form-error {
    display: block;
    font-size: 0.82em;
    color: #c0392b;
    margin-top: 4px;
    min-height: 0;
}

.form-error:empty {
    display: none;
}

.form-group-checkbox {
    margin-top: 28px;
    margin-bottom: 28px;
    padding: 16px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-weight: normal !important;
    font-size: 0.88em;
    line-height: 1.6;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 4px;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    accent-color: #FDB813;
    cursor: pointer;
}

.checkbox-label a {
    color: #1a1a1a;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.checkbox-label a:hover {
    color: var(--accent-hover);
}

.btn-submit {
    display: inline-block;
    padding: 12px 36px;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 1em;
    color: #1a1a1a;
    background-color: var(--accent);
    border: 2px solid var(--accent-hover);
    border-radius: 4px;
    cursor: pointer;
    letter-spacing: 0.3px;
    transition: background-color 0.15s, transform 0.1s, opacity 0.15s;
}

.btn-submit:hover:not(:disabled) {
    background-color: var(--accent-hover);
}

.btn-submit:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-submit:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    background-color: #ddd;
    border-color: #ccc;
    color: #888;
}

.form-status {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 4px;
    font-size: 0.95em;
    line-height: 1.5;
}

.form-status:empty {
    display: none;
}

.form-status-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-status-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.cf-turnstile {
    margin-bottom: 4px;
    text-align: center;
}

@media (max-width: 600px) {
    .form-group {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .form-group label {
        padding-top: 0;
    }
}

/* ─── Site footer ─── */

.site-footer {
    position: fixed;
    bottom: 0;
    left: 230px;
    right: 0;
    padding: 12px 24px;
    text-align: center;
    font-size: 0.85em;
    color: var(--footer-text);
    border-top: 1px solid var(--footer-border);
    background-color: var(--bg-page);
    z-index: 2;
    flex-shrink: 0;
}

@media (max-width: 1024px) {
    .site-footer {
        left: 0;
    }
}

.site-footer a {
    color: var(--accent);
    text-decoration: none;
}

.site-footer a:visited {
    color: var(--accent-hover);
}

.site-footer a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.site-footer p + p {
    margin-top: 6px;
}

.topbar-header {
    color: var(--text-sidebar-active);
}