/* leben-de — bpb-civic palette, light + dark, responsive * Tokens via CSS custom properties; theme switches via data-theme on */ :root, [data-theme="light"]{ --red:#c91c1c; --red-hover:#b01818; --ink:#0f0f10; --ink-2:#26262a; --ink-3:#5a5d62; --ink-4:#8a8d92; --ink-5:#b8babd; --paper:#ffffff; --paper-2:#f6f5f1; --paper-3:#ecebe5; --rule:#e6e4dc; --rule-2:#f0eee7; --correct:#1f6b1f; --correct-bg:#eef5ee; --wrong:#b62525; --wrong-bg:#fbeaea; --info-rim:#c89a18; --info-bg:#fbf5e1; --info-rim-2:#8a6a0a; --info-fg:#8a6a0a; --shadow-card:0 1px 2px rgba(0,0,0,.08), 0 1px 1px rgba(0,0,0,.04); --shadow-sticky:0 6px 24px rgba(0,0,0,.08); --sidebar-bg:#fafaf6; --sidebar-active:#ffffff; --frame-bg:#f6f5f1; } [data-theme="dark"]{ --red:#e83a3a; --red-hover:#c92c2c; --ink:#f0efea; --ink-2:#dad9d4; --ink-3:#9c9d9f; --ink-4:#6d6f73; --ink-5:#3d3f43; --paper:#141416; --paper-2:#1c1c1f; --paper-3:#26262a; --rule:#2c2c30; --rule-2:#26262a; --correct:#4caf50; --correct-bg:#1c2c1d; --wrong:#ef5350; --wrong-bg:#2c1717; --info-rim:#d4ad4a; --info-bg:#2a2316; --info-rim-2:#f0d488; --info-fg:#f0d488; --shadow-card:0 1px 2px rgba(0,0,0,.4), 0 1px 1px rgba(0,0,0,.2); --shadow-sticky:0 6px 24px rgba(0,0,0,.3); --sidebar-bg:#181819; --sidebar-active:#26262a; --frame-bg:#141416; } /* Auto-default if user has no manual pick yet */ @media (prefers-color-scheme: dark){ :root:not([data-theme]){ color-scheme: dark; --red:#e83a3a; --red-hover:#c92c2c; --ink:#f0efea; --ink-2:#dad9d4; --ink-3:#9c9d9f; --ink-4:#6d6f73; --ink-5:#3d3f43; --paper:#141416; --paper-2:#1c1c1f; --paper-3:#26262a; --rule:#2c2c30; --rule-2:#26262a; --correct:#4caf50; --correct-bg:#1c2c1d; --wrong:#ef5350; --wrong-bg:#2c1717; --info-rim:#d4ad4a; --info-bg:#2a2316; --info-rim-2:#f0d488; --info-fg:#f0d488; --shadow-card:0 1px 2px rgba(0,0,0,.4), 0 1px 1px rgba(0,0,0,.2); --shadow-sticky:0 6px 24px rgba(0,0,0,.3); --sidebar-bg:#181819; --sidebar-active:#26262a; --frame-bg:#141416; } } *,*::before,*::after{box-sizing:border-box} html,body{ margin:0;padding:0;background:var(--frame-bg);color:var(--ink); font-family:"IBM Plex Sans",system-ui,-apple-system,sans-serif; line-height:1.5;font-size:14px; -webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%; color-scheme:light dark; } html[data-theme="light"]{color-scheme:light} html[data-theme="dark"]{color-scheme:dark} button,input,select{font-family:inherit;font-size:inherit;color:inherit} h1,h2,h3{margin:0;font-weight:inherit;font-size:inherit;line-height:inherit} button{cursor:pointer;background:none;border:0;padding:0} a{color:inherit} /* ============= App shell ============= */ .shell{display:flex;min-height:100vh;background:var(--paper)} .sidebar{display:none} .main{flex:1;display:flex;flex-direction:column;min-width:0} /* ============= App bar ============= */ .appbar{background:var(--red);color:#fff;display:flex;align-items:center; justify-content:space-between;padding:env(safe-area-inset-top) 0 0 0; position:sticky;top:0;z-index:10;transition:background .2s ease,color .2s ease} .appbar-row{height:52px;width:100%;display:flex;align-items:center; justify-content:space-between;padding:0 14px;gap:8px} .appbar .nav-l{display:flex;align-items:center;min-width:40px} .appbar .back{width:36px;height:36px;display:flex;align-items:center; justify-content:center;font-size:18px;color:#fff;border-radius:8px;line-height:1} .appbar .back:hover{background:rgba(255,255,255,.14)} .appbar .title{font-size:16px;font-weight:600;letter-spacing:-.005em;flex:1;text-align:center} .appbar .nav-r{display:flex;gap:6px;align-items:center;justify-content:flex-end;min-width:40px} .appbar .ic{height:32px;min-width:38px;padding:0 9px;display:flex; align-items:center;justify-content:center;font-size:12.5px;font-weight:600; border-radius:8px;background:rgba(255,255,255,.18);color:#fff;letter-spacing:.02em;line-height:1} .appbar .ic:hover{background:rgba(255,255,255,.26)} .appbar .ic.on{background:#fff;color:var(--red)} .appbar .ic.heart,.appbar .ic.theme{font-size:16px;min-width:32px;padding:0} .appbar .ic.heart.on{color:var(--red)} /* Daily strip */ .daily{background:var(--info-bg);padding:10px 18px;display:flex; justify-content:space-between;align-items:center;font-size:12.5px;color:var(--info-fg); line-height:1.2;border-bottom:1px solid var(--info-rim);border-color:color-mix(in srgb, var(--info-rim) 30%, var(--rule))} .daily-label{font-weight:500;display:flex;align-items:center;gap:8px} .daily-label .star{color:var(--info-rim);font-size:13px} .daily-cta{font-weight:600;font-size:12px;letter-spacing:.02em;color:var(--info-rim-2)} /* Sub-tabs */ .seg-wrap{padding:12px 16px 8px;background:var(--paper)} .seg{background:var(--paper-3);border-radius:9px;padding:3px;display:flex;height:36px} .stab{flex:1;display:flex;align-items:center;justify-content:center;gap:6px; border-radius:7px;font-size:13px;font-weight:500;color:var(--ink-3);line-height:1} .stab.active{background:var(--paper);color:var(--ink);font-weight:600; box-shadow:var(--shadow-card)} .stab .ct{font-family:"IBM Plex Mono",monospace;font-size:11.5px;font-weight:500;color:var(--ink-4)} .stab.active .ct{color:var(--red)} /* Content */ .content{flex:1;display:flex;flex-direction:column;background:var(--paper);min-width:0} .qhead{padding:14px 22px 0;display:flex;justify-content:space-between;align-items:baseline} .qhead .cnt{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--ink-2);font-weight:500} .qhead .cnt .of{color:var(--ink-4);font-weight:400} .qhead .report{font-size:11.5px;color:var(--ink-4);font-style:italic; font-weight:400;padding:6px 0} .qhead .report:hover{color:var(--ink-3)} .pbar{height:2px;background:var(--rule);margin:10px 22px 0;border-radius:1px;overflow:hidden} .pbar-fill{height:100%;background:var(--ink-2);transition:width .3s ease;border-radius:1px} .qmeta{padding:18px 22px 6px;font-size:11px;letter-spacing:.06em;color:var(--ink-4);font-weight:500} .qmeta strong{color:var(--ink-2);font-weight:600;letter-spacing:.08em; text-transform:uppercase;font-size:11px;margin-left:2px} .qde{padding:0 22px 6px;font-size:16px;font-weight:500;line-height:1.45; color:var(--ink);letter-spacing:-.005em} .qtr{padding:0 22px 18px;font-size:13px;color:var(--ink-3); line-height:1.45;font-weight:400;font-style:italic} /* Options */ .opts{padding:0 16px;display:flex;flex-direction:column;gap:8px} .opt{background:var(--paper-2);border-radius:10px;padding:13px 16px; display:flex;align-items:flex-start;gap:12px;min-height:52px; transition:background .15s ease,box-shadow .15s ease; border:1px solid transparent;position:relative;text-align:left;width:100%;color:inherit} .opt:hover:not(.locked){background:color-mix(in srgb, var(--paper-2) 80%, var(--paper-3))} .opt:disabled{cursor:default} .opt .l{font-family:"IBM Plex Mono",monospace;font-size:13.5px;font-weight:500; color:var(--ink-3);min-width:20px;flex-shrink:0;padding-top:1px;line-height:1.4} .opt.sel{background:var(--paper);box-shadow:inset 0 0 0 1.5px var(--ink),0 1px 3px rgba(0,0,0,.06)} .opt.sel .l{color:var(--ink);font-weight:600} .opt.correct{background:var(--correct-bg);box-shadow:inset 0 0 0 1.5px var(--correct)} .opt.correct .l{color:var(--correct);font-weight:600} .opt.wrong{background:var(--wrong-bg);box-shadow:inset 0 0 0 1.5px var(--wrong)} .opt.wrong .l{color:var(--wrong);font-weight:600} .opt-body{flex:1;min-width:0} .opt-body .de{font-size:14px;color:var(--ink);line-height:1.4;font-weight:400} .opt.sel .opt-body .de,.opt.correct .opt-body .de,.opt.wrong .opt-body .de{font-weight:500} .opt-body .tr{font-size:11.5px;color:var(--ink-4);margin-top:3px;line-height:1.35;font-style:italic} .opt .ic-r{align-self:center;margin-left:auto;font-size:16px;color:var(--correct); width:20px;text-align:center;flex-shrink:0;font-weight:700} .opt.wrong .ic-r{color:var(--wrong)} /* Lernhilfe */ .learn{margin:16px 16px 0;padding:14px 16px;background:var(--info-bg); border-left:3px solid var(--info-rim);border-radius:0 8px 8px 0} .learn .label{font-size:10px;font-weight:700;letter-spacing:.1em; text-transform:uppercase;color:var(--info-fg);margin-bottom:7px;display:flex; justify-content:space-between;align-items:baseline} .learn .meta-x{font-size:10px;color:var(--info-rim);font-weight:500;letter-spacing:.01em; text-transform:none;font-style:italic} .learn .de{font-size:13.5px;color:var(--ink);line-height:1.5;font-weight:400} .learn .tr{font-size:11.5px;color:var(--ink-3);margin-top:6px;line-height:1.4;font-style:italic} /* Footer */ .footer{padding:14px 16px calc(14px + env(safe-area-inset-bottom)); background:var(--paper);border-top:1px solid var(--rule-2);position:sticky;bottom:0} .btn-primary{height:48px;width:100%;display:flex;align-items:center; justify-content:center;font-size:15px;font-weight:600;letter-spacing:.005em; border-radius:10px;background:var(--ink);color:var(--paper); transition:background .12s ease} .btn-primary:hover:not(.disabled){background:var(--ink-2)} .btn-primary.disabled{background:var(--ink-5);cursor:not-allowed} .btn-primary.success{background:var(--correct);color:#fff} [data-theme="dark"] .btn-primary{background:var(--paper-3);color:var(--ink)} [data-theme="dark"] .btn-primary:hover:not(.disabled){background:color-mix(in srgb,var(--paper-3) 60%, var(--ink-5))} [data-theme="dark"] .btn-primary.success{background:var(--correct);color:#fff} /* Empty / status states */ .empty{padding:48px 22px;text-align:center;color:var(--ink-3);font-size:14px;line-height:1.55} .empty .ic{font-size:32px;color:var(--ink-4);margin-bottom:8px;display:block} .empty .ttl{font-size:16px;font-weight:600;color:var(--ink-2);margin-bottom:6px} /* Language picker overlay */ .picker-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.4); display:flex;align-items:flex-end;z-index:50;opacity:0;pointer-events:none; transition:opacity .2s ease} .picker-backdrop.open{opacity:1;pointer-events:auto} .picker-sheet{background:var(--paper);width:100%;max-height:80vh; border-radius:14px 14px 0 0;display:flex;flex-direction:column; padding:16px 0 calc(16px + env(safe-area-inset-bottom)); transform:translateY(100%);transition:transform .25s ease} .picker-backdrop.open .picker-sheet{transform:translateY(0)} .picker-handle{width:36px;height:3px;background:var(--ink-5);border-radius:99px; margin:0 auto 14px;flex-shrink:0} .picker-title{padding:0 22px 4px;font-size:16px;font-weight:600;color:var(--ink)} .picker-sub{padding:0 22px 12px;font-size:11.5px;color:var(--ink-4);letter-spacing:.02em} .picker-list{flex:1;overflow-y:auto;padding:0 12px} .picker-item{display:flex;align-items:center;padding:11px 12px;border-radius:8px; font-size:14px;gap:10px;width:100%;text-align:left;color:inherit} .picker-item:hover{background:var(--paper-2)} .picker-item.sel{background:var(--paper-2);color:var(--red);font-weight:600} .picker-item .flag{font-size:16px;width:22px;text-align:center} .picker-item .name{flex:1} .picker-item .code{font-family:"IBM Plex Mono",monospace;font-size:10.5px; color:var(--ink-4);letter-spacing:.06em;text-transform:uppercase;font-weight:600} /* ============= TABLET ≥640px ============= */ @media (min-width:640px){ body{padding:16px;background:var(--frame-bg)} .shell{max-width:680px;margin:0 auto;border-radius:14px;overflow:hidden; box-shadow:var(--shadow-sticky);min-height:calc(100vh - 32px)} .appbar-row{padding:0 18px} .seg-wrap{padding:14px 20px 10px} .qhead{padding:16px 24px 0} .pbar{margin:10px 24px 0} .qmeta{padding:20px 24px 6px} .qde{padding:0 24px 8px;font-size:17px} .qtr{padding:0 24px 20px;font-size:13.5px} .opts{padding:0 20px} .opt{padding:14px 18px} .learn{margin:18px 20px 0} .footer{padding:16px 20px} .btn-primary{max-width:340px;margin:0 auto} } /* ============= DESKTOP ≥1024px ============= */ @media (min-width:1024px){ body{padding:0;background:var(--frame-bg)} .shell{max-width:1200px;margin:0 auto;display:grid; grid-template-columns:240px 1fr;border-radius:0;box-shadow:none; min-height:100vh;background:transparent} .sidebar{display:flex;flex-direction:column;background:var(--sidebar-bg); border-right:1px solid var(--rule);padding:24px 16px;gap:6px; position:sticky;top:0;height:100vh;overflow-y:auto} .sb-brand{font-size:10.5px;font-weight:700;letter-spacing:.14em; text-transform:uppercase;color:var(--red);margin-bottom:8px;padding:0 8px} .sb-section{font-size:10px;font-weight:600;letter-spacing:.1em; text-transform:uppercase;color:var(--ink-4);margin:14px 8px 4px} .sb-item{padding:9px 10px;border-radius:8px;font-size:13px;color:var(--ink-2); font-weight:500;display:flex;align-items:center;gap:10px;line-height:1; width:100%;text-align:left;font-family:inherit} .sb-item:hover{background:var(--paper-3)} .sb-item.active{background:var(--sidebar-active);color:var(--ink);font-weight:600; box-shadow:0 1px 2px rgba(0,0,0,.06)} .sb-item .sb-ic{width:18px;height:18px;display:inline-flex;align-items:center; justify-content:center;color:var(--ink-3);font-size:14px} .sb-item.active .sb-ic{color:var(--red)} .sb-item .sb-ct{margin-left:auto;font-family:"IBM Plex Mono",monospace; font-size:11px;color:var(--ink-4);font-weight:500} .sb-item.active .sb-ct{color:var(--red)} .sb-spacer{flex:1} .sb-footer{padding:12px 8px;border-top:1px solid var(--rule); font-size:11.5px;color:var(--ink-4);line-height:1.4} .sb-footer .pill{display:inline-block;background:var(--paper-3);padding:2px 7px; border-radius:99px;font-size:10px;font-weight:600;letter-spacing:.04em; color:var(--ink-3);margin-right:5px} .main{background:var(--paper);min-height:100vh} .appbar{background:var(--paper);color:var(--ink);border-bottom:1px solid var(--rule); position:sticky;top:0} .appbar-row{padding:0 32px;height:60px} .appbar .back{display:none} .appbar .title{font-size:16px;color:var(--ink);font-weight:600;text-align:left;flex:0 1 auto} .appbar .ic{background:var(--paper-3);color:var(--ink-2)} .appbar .ic:hover{background:color-mix(in srgb,var(--paper-3) 60%, var(--ink-5))} .appbar .ic.on{background:var(--ink);color:var(--paper)} .daily{padding:12px 32px} .seg-wrap{display:none} .content{padding:0;max-width:760px;width:100%;margin:0 auto} .qhead{padding:28px 36px 0} .qhead .cnt{font-size:13px} .qhead .report{font-size:12px} .pbar{margin:14px 36px 0;height:3px} .qmeta{padding:24px 36px 8px;font-size:12px} .qmeta strong{font-size:12px} .qde{padding:0 36px 10px;font-size:19px;line-height:1.5;letter-spacing:-.005em} .qtr{padding:0 36px 24px;font-size:14.5px;line-height:1.5} .opts{padding:0 28px;gap:10px} .opt{padding:16px 20px;min-height:60px;border-radius:12px} .opt .l{font-size:14px} .opt-body .de{font-size:15px;line-height:1.45} .opt-body .tr{font-size:12.5px;line-height:1.4} .learn{margin:20px 28px 0;padding:18px 22px;border-radius:0 10px 10px 0} .learn .label{font-size:11px;margin-bottom:8px} .learn .de{font-size:14.5px;line-height:1.5} .learn .tr{font-size:12.5px;margin-top:7px} .footer{padding:20px 28px 28px;border-top:none;position:static;background:transparent} .btn-primary{height:52px;font-size:15.5px;border-radius:10px;max-width:280px; margin:0 auto;width:100%} /* Picker: desktop = centered modal */ .picker-backdrop{align-items:center;justify-content:center} .picker-sheet{max-width:440px;width:90%;max-height:70vh;border-radius:14px; transform:scale(.95)} .picker-backdrop.open .picker-sheet{transform:scale(1)} } @media (min-width:1440px){ .shell{max-width:1320px;grid-template-columns:280px 1fr} .content{max-width:820px} } /* Reduced motion */ @media (prefers-reduced-motion: reduce){ *,*::before,*::after{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; } }