/* ═══════════════════════════════════════════════════════════════
   itsmepotato · tools — design system
   Professional and vivid: white panels on a neutral ground, one
   confident accent, colour used to mean something. No decoration.
   Monospace is for values only — never for UI chrome.
═══════════════════════════════════════════════════════════════ */

:root{
  /* ── surfaces: real separation between layers ── */
  --bg:#f4f5f8;          /* page ground        */
  --panel:#ffffff;       /* cards and panels   */
  --sunken:#f7f8fa;      /* headers, footers   */
  --field:#ffffff;       /* inputs             */
  --well:#f4f5f8;        /* inset / code       */
  --line:#e3e6ed;        /* hairline           */
  --line-str:#cbd1dd;    /* stronger hairline  */

  /* ── accent: one confident indigo ── */
  --a1:#4f46e5;
  --a1-hi:#4338ca;
  --a1-soft:#eef0fe;
  --brand:linear-gradient(135deg,#4f46e5,#7c3aed);

  /* ── vivid category colours, used for meaning ── */
  --c-text:#4f46e5;
  --c-encode:#0284c7;
  --c-format:#ea580c;
  --c-colour:#db2777;
  --c-generate:#7c3aed;
  --c-crypto:#059669;

  /* ── state ── */
  --ok:#047857;
  --ok-soft:#ecfdf5;
  --warn:#b45309;
  --warn-soft:#fffbeb;
  --bad:#dc2626;
  --bad-soft:#fef2f2;
  --info:#0369a1;
  --info-soft:#f0f9ff;

  /* ── ink ── */
  --ink:#111827;
  --ink-2:#4b5563;
  --ink-3:#6b7280;
  --ink-4:#9ca3af;

  /* ── code tokens ── */
  --tk-key:#0369a1;
  --tk-str:#047857;
  --tk-num:#c2410c;
  --tk-bool:#6d28d9;
  --tk-null:#be123c;
  --tk-com:#94a3b8;
  --tk-tag:#0369a1;
  --tk-attr:#c2410c;
  --tk-val:#047857;

  --shadow-sm:0 1px 2px rgba(17,24,39,.06);
  --shadow:0 4px 12px -2px rgba(17,24,39,.10),0 2px 6px -2px rgba(17,24,39,.06);
  --shadow-lg:0 16px 36px -12px rgba(17,24,39,.22);

  --f-sans:'Instrument Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --f-disp:'Space Grotesk','Instrument Sans',sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;

  --r-sm:8px; --r-md:10px; --r-lg:14px;
  --e-out:cubic-bezier(.22,1,.36,1);

  --nav-h:58px;
  --side-w:244px;
  --maxw:1560px;

  /* kept so existing pages that reference --grad get the solid accent */
  --grad:#4f46e5;
  --surface:var(--panel);
  --surface-2:var(--sunken);
  --card:var(--panel);
  --track:#e3e6ed;
  --r-xs:6px;
  --e-spring:cubic-bezier(.34,1.4,.64,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:var(--f-sans);
  background:var(--bg);
  color:var(--ink);
  line-height:1.55;
  font-size:15px;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
img,svg{display:block;max-width:100%}
::selection{background:#ddd9fe;color:var(--ink)}
:focus-visible{outline:2px solid var(--a1);outline-offset:2px;border-radius:5px}

::-webkit-scrollbar{width:12px;height:12px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#cbd1dd;border-radius:99px;border:3px solid var(--bg)}
::-webkit-scrollbar-thumb:hover{background:#aab2c2}

/* decoration removed — it belonged on the portfolio, not on a tools app */
.ambient,.grain{display:none}

/* ═══════════════════════════════════════════════════════════════
   TOP BAR
═══════════════════════════════════════════════════════════════ */
.topbar{
  position:sticky;top:0;z-index:60;height:var(--nav-h);
  display:flex;align-items:center;gap:14px;padding:0 20px;
  background:var(--panel);border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;font-family:var(--f-disp);letter-spacing:-.02em}
.brand-mark{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;flex-shrink:0;
  background:var(--brand);box-shadow:0 2px 8px rgba(79,70,229,.35);
}
.brand-mark svg{width:16px;height:16px;stroke:#fff;stroke-width:2;fill:none}
.brand b{font-size:1rem;font-weight:700;color:var(--ink)}
.brand span{font-size:1rem;font-weight:400;color:var(--ink-4)}
@media(max-width:560px){.brand span{display:none}}

.search{position:relative;flex:1;max-width:430px;margin-left:auto}
.search svg{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;stroke:var(--ink-4);stroke-width:1.9;fill:none;pointer-events:none;
}
.search input{
  width:100%;height:38px;padding:0 68px 0 36px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);
  font-size:.9rem;transition:border-color .18s,background .18s,box-shadow .18s;
}
.search input::placeholder{color:var(--ink-4)}
.search input:focus{outline:none;border-color:var(--a1);background:var(--panel);box-shadow:0 0 0 3px var(--a1-soft)}
.search kbd{
  position:absolute;right:9px;top:50%;transform:translateY(-50%);
  font-family:var(--f-mono);font-size:.7rem;color:var(--ink-4);
  padding:2px 7px;border:1px solid var(--line);border-radius:5px;pointer-events:none;
}
.search-pop{
  position:absolute;top:44px;left:0;right:0;z-index:70;
  max-height:min(58vh,420px);overflow-y:auto;padding:6px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-lg);display:none;
}
.search-pop.open{display:block}
.search-pop a{
  display:flex;align-items:center;gap:11px;padding:9px 11px;border-radius:var(--r-sm);
  font-size:.9rem;font-weight:500;transition:background .14s;
}
.search-pop a:hover,.search-pop a.cursor{background:var(--bg)}
.search-pop .sp-ico{width:16px;height:16px;stroke-width:1.8;fill:none;flex-shrink:0;color:var(--a1)}
.search-pop .sp-cat{margin-left:auto;font-size:.78rem;color:var(--ink-4)}
.search-pop .sp-empty{padding:18px 12px;font-size:.9rem;color:var(--ink-3);text-align:center}

.nav-home{
  flex-shrink:0;padding:8px 15px;border-radius:var(--r-md);font-size:.88rem;font-weight:600;
  color:var(--ink-2);border:1px solid var(--line);background:var(--panel);
  transition:color .18s,border-color .18s,background .18s;
}
.nav-home:hover{color:var(--a1);border-color:var(--a1);background:var(--a1-soft)}
@media(max-width:760px){.nav-home{display:none}}

.side-toggle{
  display:none;width:38px;height:38px;flex-shrink:0;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--panel);place-items:center;cursor:pointer;
}
.side-toggle svg{width:18px;height:18px;stroke:var(--ink);stroke-width:2;fill:none}
@media(max-width:1040px){.side-toggle{display:grid}}

/* ═══════════════════════════════════════════════════════════════
   SHELL
═══════════════════════════════════════════════════════════════ */
.shell{position:relative;z-index:2;display:grid;grid-template-columns:var(--side-w) 1fr;align-items:start}
@media(max-width:1040px){.shell{grid-template-columns:1fr}}

.sidebar{
  position:sticky;top:var(--nav-h);height:calc(100vh - var(--nav-h));
  overflow-y:auto;padding:20px 12px 40px;
  background:var(--panel);border-right:1px solid var(--line);
}
@media(max-width:1040px){
  .sidebar{
    position:fixed;top:var(--nav-h);left:0;bottom:0;width:min(290px,86vw);z-index:65;
    box-shadow:var(--shadow-lg);height:auto;
    transform:translateX(-102%);transition:transform .3s var(--e-out);
  }
  .sidebar.open{transform:none}
  .side-scrim{
    position:fixed;inset:var(--nav-h) 0 0;z-index:64;background:rgba(17,24,39,.36);
    opacity:0;visibility:hidden;transition:opacity .24s,visibility .24s;
  }
  .side-scrim.open{opacity:1;visibility:visible}
}
.side-group{margin-bottom:20px}
.side-group h4{
  font-size:.75rem;font-weight:700;letter-spacing:.01em;
  color:var(--ink-4);padding:0 10px;margin-bottom:6px;
}
.side-group a{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:8px 10px;border-radius:var(--r-sm);
  font-size:.9rem;font-weight:500;color:var(--ink-2);
  transition:color .16s,background .16s;
}
.side-group a svg{width:16px;height:16px;stroke-width:1.8;fill:none;flex-shrink:0;color:var(--ink-4);transition:color .16s}
.side-group a:hover{color:var(--ink);background:var(--bg)}
.side-group a:hover svg{color:var(--a1)}
.side-group a.on{color:var(--a1);background:var(--a1-soft);font-weight:600}
.side-group a.on svg{color:var(--a1)}
.side-group a.on::before{
  content:'';position:absolute;left:-12px;top:8px;bottom:8px;width:3px;
  background:var(--a1);border-radius:0 3px 3px 0;
}

.main{min-width:0;max-width:var(--maxw);padding:24px clamp(18px,2.4vw,34px) 60px}

/* ═══════════════════════════════════════════════════════════════
   PAGE HEADER
═══════════════════════════════════════════════════════════════ */
.crumbs{
  display:flex;align-items:center;gap:7px;margin-bottom:10px;
  font-size:.82rem;color:var(--ink-4);
}
.crumbs a{font-weight:500;transition:color .18s}
.crumbs a:hover{color:var(--a1)}
.crumbs i{font-style:normal;opacity:.6}

.page-head{margin-bottom:20px;max-width:780px}
.page-head h1{
  font-family:var(--f-disp);font-weight:700;letter-spacing:-.025em;line-height:1.15;
  font-size:clamp(1.55rem,2.6vw,2.05rem);margin-bottom:7px;color:var(--ink);
}
.page-head h1 .g{color:var(--a1);-webkit-text-fill-color:currentColor}
.page-head p{color:var(--ink-2);font-size:.95rem;line-height:1.65}

/* ═══════════════════════════════════════════════════════════════
   PANELS
═══════════════════════════════════════════════════════════════ */
.workspace{display:grid;gap:16px}
.workspace.split{grid-template-columns:1fr 1fr}
@media(max-width:980px){.workspace.split{grid-template-columns:1fr}}

.panel{
  position:relative;display:flex;flex-direction:column;min-width:0;
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--panel);
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.panel:focus-within{border-color:var(--a1);box-shadow:0 0 0 3px var(--a1-soft)}
.panel-head{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:11px 16px;border-bottom:1px solid var(--line);min-height:48px;background:var(--panel);
}
/* sentence case, real size, sans — this is a label, not a nameplate */
.panel-head h2,.panel-head h3{
  font-size:.92rem;font-weight:600;letter-spacing:-.01em;color:var(--ink);
}
.panel-head .spacer{flex:1}
.panel-body{padding:16px;display:flex;flex-direction:column;gap:14px;flex:1;min-width:0}
.panel-body.flush{padding:0}
.panel-foot{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:9px 16px;border-top:1px solid var(--line);background:var(--sunken);
  font-size:.82rem;color:var(--ink-3);
}

/* ═══════════════════════════════════════════════════════════════
   CONTROLS
═══════════════════════════════════════════════════════════════ */
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field > label,.lbl{font-size:.84rem;font-weight:600;color:var(--ink-2)}
.hint{font-size:.8rem;color:var(--ink-3);line-height:1.5}

.input,.select,.area{
  width:100%;background:var(--field);border:1px solid var(--line-str);border-radius:var(--r-sm);
  padding:9px 12px;font-size:.9rem;color:var(--ink);
  transition:border-color .16s,box-shadow .16s;
}
.input::placeholder,.area::placeholder{color:var(--ink-4)}
.input:focus,.select:focus,.area:focus{outline:none;border-color:var(--a1);box-shadow:0 0 0 3px var(--a1-soft)}
.input:disabled,.area:disabled,.select:disabled{opacity:.6;cursor:not-allowed;background:var(--bg)}

.area{
  font-family:var(--f-mono);font-size:.855rem;line-height:1.65;
  resize:vertical;min-height:230px;tab-size:2;white-space:pre;overflow:auto;
}
.area.wrap{white-space:pre-wrap;word-break:break-word}
.area.flush{border:none;border-radius:0;background:var(--panel);padding:14px 16px;min-height:290px;box-shadow:none}
.area.flush:focus{box-shadow:none}

.select{
  appearance:none;-webkit-appearance:none;cursor:pointer;padding-right:32px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 10px center;background-size:15px;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:8px 14px;border-radius:var(--r-sm);cursor:pointer;
  font-size:.875rem;font-weight:600;white-space:nowrap;
  border:1px solid var(--line-str);background:var(--panel);color:var(--ink-2);
  box-shadow:var(--shadow-sm);
  transition:background .16s,border-color .16s,color .16s,box-shadow .16s;
}
.btn svg{width:15px;height:15px;stroke-width:1.9;fill:none;flex-shrink:0}
.btn:hover{color:var(--a1);border-color:var(--a1);background:var(--a1-soft)}
.btn:active{box-shadow:none}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn:disabled:hover{color:var(--ink-2);border-color:var(--line-str);background:var(--panel)}

.btn.primary{background:var(--a1);border-color:var(--a1);color:#fff;box-shadow:0 1px 2px rgba(79,70,229,.35)}
.btn.primary:hover{background:var(--a1-hi);border-color:var(--a1-hi);color:#fff}

.btn.ghost{background:transparent;border-color:transparent;color:var(--ink-3);box-shadow:none}
.btn.ghost:hover{background:var(--bg);color:var(--a1);border-color:transparent}
.btn.sm{padding:6px 11px;font-size:.82rem}
.btn.icon{padding:6px;width:31px;height:31px}
.btn.icon svg{width:15px;height:15px}
.btn.danger:hover{color:var(--bad);border-color:var(--bad);background:var(--bad-soft)}
.btn.wide{width:100%}

.btn-row{display:flex;flex-wrap:wrap;gap:8px}
.btn-row.end{justify-content:flex-end}

.seg{display:inline-flex;padding:3px;gap:3px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--bg)}
.seg button{
  padding:6px 14px;border-radius:6px;border:none;background:none;cursor:pointer;
  font-size:.855rem;font-weight:600;color:var(--ink-3);transition:color .16s,background .16s,box-shadow .16s;
}
.seg button:hover{color:var(--ink)}
.seg button.on{color:var(--a1);background:var(--panel);box-shadow:var(--shadow-sm)}

.check{display:inline-flex;align-items:center;gap:8px;cursor:pointer;font-size:.875rem;color:var(--ink-2);user-select:none}
.check input{position:absolute;opacity:0;width:0;height:0}
.check .box{
  width:17px;height:17px;border-radius:5px;border:1.5px solid var(--line-str);background:var(--field);
  display:grid;place-items:center;flex-shrink:0;transition:background .16s,border-color .16s;
}
.check .box svg{width:11px;height:11px;stroke:#fff;stroke-width:3.2;fill:none;opacity:0;transition:opacity .14s}
.check input:checked + .box{background:var(--a1);border-color:var(--a1)}
.check input:checked + .box svg{opacity:1}
.check input:focus-visible + .box{outline:2px solid var(--a1);outline-offset:2px}
.check:hover{color:var(--ink)}

/* ═══════════════════════════════════════════════════════════════
   STATS / BADGES / NOTES
═══════════════════════════════════════════════════════════════ */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(104px,1fr));gap:9px}
.stat-cell{
  padding:12px 13px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--sunken);
  transition:border-color .18s,background .18s;
}
.stat-cell:hover{border-color:var(--line-str);background:var(--panel)}
.stat-cell b{
  display:block;font-family:var(--f-disp);font-size:1.4rem;font-weight:700;
  letter-spacing:-.02em;line-height:1.1;color:var(--a1);-webkit-text-fill-color:currentColor;
}
.stat-cell span{display:block;margin-top:4px;font-size:.78rem;color:var(--ink-3)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.79rem;font-weight:600;
  padding:4px 10px;border-radius:99px;border:1px solid var(--line);color:var(--ink-3);background:var(--sunken);
}
.badge::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0}
.badge.ok{color:var(--ok);border-color:#a7f3d0;background:var(--ok-soft)}
.badge.bad{color:var(--bad);border-color:#fecaca;background:var(--bad-soft)}
.badge.warn{color:var(--warn);border-color:#fde68a;background:var(--warn-soft)}
.badge.idle{color:var(--ink-4)}

.note{
  display:flex;gap:10px;padding:12px 14px;border-radius:var(--r-md);
  font-size:.86rem;line-height:1.55;border:1px solid var(--line);background:var(--sunken);color:var(--ink-2);
}
.note svg{width:17px;height:17px;stroke-width:1.9;fill:none;flex-shrink:0;margin-top:1px}
.note.bad{border-color:#fecaca;background:var(--bad-soft);color:#991b1b}
.note.warn{border-color:#fde68a;background:var(--warn-soft);color:#92400e}
.note.info{border-color:#bae6fd;background:var(--info-soft);color:#075985}

/* ═══════════════════════════════════════════════════════════════
   TOOL CARDS
═══════════════════════════════════════════════════════════════ */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(258px,1fr));gap:14px;align-items:stretch}
.tool-card{
  position:relative;display:flex;flex-direction:column;gap:9px;height:100%;
  padding:18px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--panel);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .2s var(--e-out),border-color .2s,box-shadow .2s;
}
.tool-card:hover{transform:translateY(-2px);border-color:var(--line-str);box-shadow:var(--shadow)}
.tc-ico{
  width:38px;height:38px;border-radius:var(--r-md);display:grid;place-items:center;
  background:var(--tc-soft,var(--a1-soft));
}
.tc-ico svg{width:20px;height:20px;stroke-width:1.9;fill:none}
.tool-card h3{font-family:var(--f-disp);font-size:1rem;font-weight:700;letter-spacing:-.015em;color:var(--ink)}
.tool-card p{
  font-size:.855rem;color:var(--ink-2);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.tc-cat{margin-top:auto;padding-top:4px;font-size:.78rem;font-weight:600;color:var(--tc-colour,var(--ink-4))}
.tool-card.gone{display:none}

.sec-head{display:flex;align-items:center;gap:11px;margin:26px 0 12px}
.sec-head:first-of-type{margin-top:0}
.sec-head h2{font-family:var(--f-disp);font-size:1.08rem;font-weight:700;letter-spacing:-.02em}
.sec-head span{font-size:.8rem;color:var(--ink-4)}
.sec-head .rule{flex:1;height:1px;background:var(--line)}

/* ═══════════════════════════════════════════════════════════════
   TOAST
═══════════════════════════════════════════════════════════════ */
.toasts{position:fixed;bottom:20px;right:20px;z-index:200;display:flex;flex-direction:column;gap:8px;pointer-events:none}
@media(max-width:560px){.toasts{left:14px;right:14px;bottom:14px;align-items:stretch}}
.toast{
  display:flex;align-items:center;gap:9px;padding:10px 15px;border-radius:var(--r-md);
  font-size:.875rem;font-weight:500;
  background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow-lg);animation:toastIn .22s var(--e-out);
}
.toast.out{animation:toastOut .18s var(--e-out) forwards}
.toast svg{width:16px;height:16px;stroke-width:2.2;fill:none;flex-shrink:0}
.toast.ok svg{color:var(--ok)}
.toast.bad svg{color:var(--bad)}
.toast.info svg{color:var(--info)}
@keyframes toastIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes toastOut{to{opacity:0;transform:translateY(8px)}}

/* ═══════════════════════════════════════════════════════════════
   MISC
═══════════════════════════════════════════════════════════════ */
.dropzone{
  position:absolute;inset:0;z-index:20;display:none;place-items:center;
  background:rgba(255,255,255,.95);border:2px dashed var(--a1);border-radius:var(--r-lg);
  font-size:.9rem;font-weight:600;color:var(--a1);
}
.panel.dragging .dropzone{display:grid}

.kbd{
  font-family:var(--f-mono);font-size:.78rem;color:var(--ink-2);
  padding:1px 6px;border:1px solid var(--line-str);border-bottom-width:2px;
  border-radius:5px;background:var(--panel);
}

.tool-foot{
  margin-top:34px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:.84rem;color:var(--ink-4);
}
.tool-foot a{font-weight:600;transition:color .18s}
.tool-foot a:hover{color:var(--a1)}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
}