/* Shared design system for the whole wiki.
   Monochrome base, one red accent, flat surfaces, no card shadows. */

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

:root{
  --bg:#fff;--surface:#fff;--surface2:#f5f6f8;--border:#e2e4e9;
  --text:#111318;--text2:#6b7085;
  --accent:#dc2626;--accent2:#b91c1c;--accent-light:#fef2f2;
  --green:#059669;--green-light:#ecfdf5;
  --yellow:#d97706;--yellow-light:#fffbeb;
  --shell:900px;
}

html{font-size:15px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;min-height:100vh}
h3{font-size:.88rem;font-weight:750;letter-spacing:-.01em;margin:16px 0 8px}
a{color:var(--accent)}

/* ---------- TOP BAR ---------- */
.topbar{position:sticky;top:0;z-index:100;display:flex;align-items:center;gap:12px;padding:14px 16px;background:rgba(255,255,255,.92);border-bottom:1px solid var(--border);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.topbar h1{font-size:1.05rem;font-weight:750;letter-spacing:-.02em;white-space:nowrap}
.topbar .subtitle{display:none;color:var(--text2);font-size:.8rem;font-weight:500}
.topbar-actions{display:flex;align-items:center;gap:6px;margin-left:auto}
.home-link{display:inline-flex;align-items:center;gap:6px;color:var(--text2);font-size:.8rem;font-weight:700;text-decoration:none;white-space:nowrap}
.home-link:hover{color:var(--accent)}
.home-link svg{width:14px;height:14px}

/* One button look for every chrome action: links, print, logout. */
.chip,button.chip{display:inline-flex;align-items:center;justify-content:center;height:28px;padding:0 10px;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--text2);font:inherit;font-size:.74rem;font-weight:700;text-decoration:none;white-space:nowrap;cursor:pointer;transition:color .12s,border-color .12s,background .12s}
.chip:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-light)}

/* ---------- TABS ---------- */
.tab-bar{display:flex;overflow-x:auto;background:var(--surface2);scrollbar-width:none;-webkit-overflow-scrolling:touch}
.tab-bar::-webkit-scrollbar{display:none}
.tab-btn{flex-shrink:0;padding:10px 18px;border:0;border-bottom:2px solid transparent;background:transparent;color:var(--text2);font:inherit;font-size:.82rem;font-weight:650;cursor:pointer;white-space:nowrap;transition:color .12s,background .12s}
.tab-btn:hover{color:var(--text);background:rgba(0,0,0,.03)}
.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);background:var(--bg)}

/* ---------- LAYOUT ---------- */
.tab-panel{display:none;max-width:var(--shell);margin:0 auto;padding:16px}
.tab-panel.active{display:block}
.page{max-width:var(--shell);margin:0 auto;padding:16px}

/* ---------- SECTIONS ---------- */
.section{border-bottom:1px solid var(--border)}
.section:last-child{border-bottom:0}
.section-header{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 0;cursor:pointer;user-select:none}
.section-header h2{flex:1;font-size:.92rem;font-weight:750;letter-spacing:-.01em;transition:color .12s}
.section-header:hover h2{color:var(--accent)}
.chevron{width:14px;height:14px;flex-shrink:0;color:var(--text2);opacity:.45;transition:transform .2s}
.section.open .chevron{transform:rotate(180deg);opacity:.65}
.section-body{display:none;padding:0 0 16px;font-size:.87rem}
.section.open .section-body{display:block}

/* ---------- BADGES ---------- */
.badge{display:inline-block;margin-left:8px;padding:2px 8px;border-radius:3px;font-size:.68rem;font-weight:750;text-transform:uppercase;letter-spacing:.4px;vertical-align:middle}
.badge-check{color:var(--green);background:var(--green-light)}
.badge-info{color:var(--accent);background:var(--accent-light)}
.badge-warn{color:var(--yellow);background:var(--yellow-light)}
.severity-label{display:inline-block;margin-right:8px;padding:3px 10px;border-radius:3px;font-size:.72rem;font-weight:750;text-transform:uppercase;letter-spacing:.5px}
.severity-critical{color:var(--accent);background:var(--accent-light)}
.severity-high{color:var(--yellow);background:var(--yellow-light)}
.severity-medium{color:var(--text2);background:var(--surface2)}

/* ---------- CHECKLISTS ---------- */
.progress-bar{height:2px;margin:2px 0 8px;background:var(--surface2);overflow:hidden}
.progress-fill{height:100%;width:0;background:var(--accent);transition:width .3s}
.checklist{list-style:none}
.checklist li{display:flex;align-items:flex-start;gap:10px;padding:8px 0;border-bottom:1px solid var(--surface2)}
.checklist li:last-child{border-bottom:0}
.checklist input{width:18px;height:18px;margin-top:2px;accent-color:var(--accent);cursor:pointer;flex-shrink:0}
.checklist label{flex:1;cursor:pointer}
.checklist li.checked label{color:var(--text2);text-decoration:line-through}
.clear-btn{display:inline-flex;margin-top:10px;padding:5px 12px;border:1px solid var(--border);border-radius:4px;background:transparent;color:var(--accent);font:inherit;font-size:.78rem;font-weight:650;cursor:pointer;transition:background .12s,border-color .12s}
.clear-btn:hover{background:var(--accent-light);border-color:var(--accent)}

/* ---------- INFO BLOCKS ---------- */
.info-block{margin:10px 0;padding:12px 14px;border-radius:4px;font-size:.84rem;line-height:1.6}
.info-block.tip{background:var(--surface2);border-left:3px solid var(--text2)}
.info-block.warn{background:var(--yellow-light);border-left:3px solid var(--yellow)}
.info-block.danger{background:var(--accent-light);border-left:3px solid var(--accent)}
.info-block strong{display:block;margin-bottom:4px;font-size:.85rem}
.info-block ul{margin:6px 0 0 18px}
.info-block ul li{margin-bottom:4px}

/* ---------- LISTS ---------- */
.key-rules{list-style:none}
.key-rules li{display:flex;gap:10px;padding:7px 0;border-bottom:1px solid var(--surface2);font-size:.85rem}
.key-rules li:last-child{border-bottom:0}
.key-rules li::before{content:"";width:5px;height:5px;margin-top:9px;border-radius:50%;background:var(--accent);opacity:.55;flex-shrink:0}
.steps{list-style:none;counter-reset:steps}
.steps>li{position:relative;padding:9px 0 9px 34px;border-bottom:1px solid var(--surface2);counter-increment:steps}
.steps>li:last-child{border-bottom:0}
.steps>li::before{content:counter(steps);position:absolute;left:0;top:9px;display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--accent-light);color:var(--accent);font-size:.72rem;font-weight:800}
.substep{display:block;margin-top:2px;color:var(--text2);font-size:.8rem}
.lede{margin-bottom:14px;font-size:.85rem}

/* ---------- TABLES ---------- */
.data-table{width:100%;margin:10px 0;border-collapse:collapse;font-size:.82rem}
.data-table th,.data-table td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--border);vertical-align:top}
.data-table th{background:var(--surface2);color:var(--text2);font-size:.73rem;font-weight:700;text-transform:uppercase;letter-spacing:.45px}
.data-table tr:last-child td{border-bottom:0}
.data-table td:first-child{font-weight:700}
.data-table.nowrap-first td:first-child{white-space:nowrap}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.data-table .muted{color:var(--text2);font-weight:400;font-size:.78rem}
.data-table .strong{white-space:nowrap;font-weight:700}
.freq-high{color:var(--accent);font-weight:700}
.freq-mid{color:var(--yellow)}
.freq-low{color:var(--text2)}

/* ---------- TRACK CARDS ---------- */
.track-card{margin:8px 0 18px;overflow:hidden;border:1px solid var(--border);border-radius:6px;background:var(--surface)}
.track-map{display:grid;place-items:center;padding:20px;background:var(--surface2)}
.track-map img{display:block;width:100%;height:auto;max-height:560px;object-fit:contain;mix-blend-mode:multiply}
.track-copy{padding:15px 16px;border-top:1px solid var(--border)}
.track-name{font-size:1rem;font-weight:750;color:var(--accent)}
.track-meta{margin-top:2px;color:var(--text2);font-size:.8rem}
.source-link{color:var(--text2);text-underline-offset:2px}
.source-link:hover{color:var(--accent)}
.corner-card{margin:6px 0;padding:12px 14px;border-radius:4px;background:var(--surface2)}
.corner-card h4{margin-bottom:3px;font-size:.84rem;font-weight:750}
.corner-card p{font-size:.84rem;line-height:1.55}

/* ---------- PILLS / SELECTOR ---------- */
.selector-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.selector-row>label{min-width:70px;color:var(--text2);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.45px}
.selector-pills{display:flex;gap:4px;flex-wrap:wrap}
.pill{padding:6px 14px;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--text2);font:inherit;font-size:.82rem;font-weight:650;cursor:pointer;white-space:nowrap;transition:all .12s}
.pill:hover{color:var(--text);background:var(--surface2)}
.pill.active{color:#fff;background:var(--accent);border-color:var(--accent)}
.result-panel{margin-top:12px;padding:18px 20px;border-radius:4px;background:var(--surface2);text-align:center}
.result-values{display:flex;justify-content:center;gap:32px;flex-wrap:wrap}
.result-block{min-width:120px}
.result-block .label{color:var(--text2);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.45px}
.result-block .val{font-size:1.6rem;font-weight:800;line-height:1.25;color:var(--accent)}
.result-block .val-label{margin-top:2px;color:var(--text2);font-size:.74rem}
.result-note{margin-top:12px;padding:10px 14px;border-radius:4px;background:var(--surface);color:var(--text2);font-size:.8rem;line-height:1.5;text-align:left}
.result-warn{margin-top:10px;padding:10px 14px;border-left:3px solid var(--yellow);border-radius:4px;background:var(--yellow-light);font-size:.8rem;text-align:left}

/* ---------- FORMS ---------- */
.field{display:flex;flex-direction:column;gap:4px}
.field label{color:var(--text2);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.4px}
.field input,.field select{width:100%;height:38px;padding:7px 9px;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--text);font:inherit;font-size:.84rem}
.field input:focus,.field select:focus{outline:2px solid var(--accent-light);border-color:var(--accent)}
.primary-btn{height:38px;padding:0 15px;border:1px solid var(--accent);border-radius:4px;background:var(--accent);color:#fff;font:inherit;font-size:.8rem;font-weight:700;cursor:pointer;white-space:nowrap;transition:background .12s}
.primary-btn:hover{background:var(--accent2)}
.primary-btn:disabled{opacity:.6;cursor:default}
.form-grid{display:grid;gap:8px;align-items:end;margin:10px 0 14px}
.form-grid.fuel{grid-template-columns:140px 140px 1fr auto}
.form-grid.note{grid-template-columns:140px 160px 1fr auto}

/* ---------- ENTRY LISTS ---------- */
.entry-list{margin-top:8px;border-top:1px solid var(--border)}
.entry-row{display:grid;gap:10px;align-items:center;padding:9px 0;border-bottom:1px solid var(--surface2)}
.entry-row.fuel{grid-template-columns:90px 90px 1fr auto}
.entry-row.note{grid-template-columns:90px 110px 1fr auto}
.entry-date{color:var(--text2);font-size:.78rem}
.entry-primary{font-weight:750}
.entry-text{min-width:0;overflow-wrap:anywhere;font-size:.82rem}
.entry-status{width:max-content;padding:3px 7px;border-radius:999px;background:var(--surface2);color:var(--text2);font-size:.68rem;font-weight:750;text-transform:uppercase;letter-spacing:.3px}
.entry-status.done{color:var(--green);background:var(--green-light)}
.entry-status.todo{color:var(--yellow);background:var(--yellow-light)}
.delete-entry{padding:4px 8px;border:1px solid transparent;border-radius:4px;background:transparent;color:var(--text2);font:inherit;font-size:.74rem;cursor:pointer}
.delete-entry:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-light)}
.empty-state{padding:18px 0;color:var(--text2);font-size:.82rem;text-align:center}

/* ---------- STATS ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:8px 0 16px}
.stat{padding:14px;border:1px solid var(--border);border-radius:6px;background:var(--surface2)}
.stat .label{color:var(--text2);font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.45px}
.stat .value{margin-top:2px;font-size:1.35rem;font-weight:800;line-height:1.25}
.stat .hint{margin-top:4px;color:var(--text2);font-size:.72rem;line-height:1.4}
.stat-progress{height:5px;margin-top:8px;border-radius:5px;background:var(--border);overflow:hidden}
.stat-progress span{display:block;height:100%;width:0;background:var(--accent);border-radius:5px;transition:width .25s}
.inline-actions{display:flex;gap:8px;flex-wrap:wrap;margin:-4px 0 16px}
.global-clear{padding:28px 16px;text-align:center}
.global-clear button{padding:9px 22px;border:1px solid var(--border);border-radius:4px;background:var(--surface);color:var(--accent);font:inherit;font-size:.84rem;font-weight:650;cursor:pointer;transition:all .12s}
.global-clear button:hover{color:#fff;background:var(--accent);border-color:var(--accent)}

/* ---------- HOME ---------- */
.home-hero{max-width:var(--shell);margin:0 auto;padding:40px 16px 8px}
.home-hero h2{font-size:1.5rem;font-weight:800;letter-spacing:-.03em}
.home-hero p{margin-top:6px;color:var(--text2);font-size:.9rem}
.group-label{max-width:var(--shell);margin:28px auto 0;padding:0 16px;color:var(--text2);font-size:.7rem;font-weight:800;text-transform:uppercase;letter-spacing:1px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px;max-width:var(--shell);margin:10px auto 0;padding:0 16px}
.card{display:flex;flex-direction:column;padding:16px;border:1px solid var(--border);border-radius:6px;background:var(--surface);color:inherit;text-decoration:none;transition:border-color .12s,background .12s}
.card:hover{border-color:var(--accent);background:var(--accent-light)}
.card h3{margin:0;font-size:.98rem;font-weight:750}
.card p{margin-top:4px;color:var(--text2);font-size:.82rem;line-height:1.5}
.card .card-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:14px;color:var(--text2);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.card:hover .card-meta{color:var(--accent)}
.card-arrow{font-size:.9rem}

/* ---------- LOGIN ---------- */
.login-wrap{display:grid;place-items:center;min-height:100vh;padding:24px}
.login-box{width:100%;max-width:340px}
.login-box h1{font-size:1.35rem;font-weight:800;letter-spacing:-.03em}
.login-box p{margin-top:4px;margin-bottom:20px;color:var(--text2);font-size:.85rem}
.login-box .field input{height:42px;font-size:.9rem}
.login-box .primary-btn{width:100%;height:42px;margin-top:14px;font-size:.86rem}
.login-error{margin-top:12px;padding:9px 12px;border-left:3px solid var(--accent);border-radius:4px;background:var(--accent-light);color:var(--accent2);font-size:.82rem}

/* ---------- SYNC STATUS ---------- */
.sync-status{color:var(--text2);font-size:.72rem;font-weight:650;white-space:nowrap}
.sync-status.error{color:var(--accent)}

/* ---------- RESPONSIVE ---------- */
@media(min-width:600px){.topbar .subtitle{display:inline}}
@media(min-width:768px){.topbar{padding:14px 24px}.tab-panel,.page{padding:20px 24px}.tab-btn{padding:10px 20px}.card-grid,.group-label,.home-hero{padding-left:24px;padding-right:24px}}
@media(max-width:700px){
  .stat-grid{grid-template-columns:1fr}
  .form-grid.fuel,.form-grid.note{grid-template-columns:1fr 1fr}
  .form-grid .wide,.form-grid .primary-btn{grid-column:1/-1}
  .entry-row.fuel{grid-template-columns:82px 70px 1fr}
  .entry-row.fuel .entry-text{grid-column:1/4}
  .entry-row.note{grid-template-columns:82px 100px 1fr}
  .entry-row.note .entry-text{grid-column:1/4}
  .entry-row .delete-entry{grid-column:3;grid-row:1;justify-self:end}
}
@media(max-width:500px){
  .topbar{padding:12px}
  .topbar h1{font-size:.95rem}
  .tab-btn{padding:9px 14px;font-size:.76rem}
  .tab-panel,.page{padding:12px}
  .track-map{padding:10px}
  .data-table{font-size:.76rem}
  .data-table th,.data-table td{padding:8px 6px}
  .data-table.nowrap-first td:first-child{white-space:normal}
  .form-grid.fuel,.form-grid.note{grid-template-columns:1fr}
}