:root {
  --navy: #0c4a8a;
  --navy-dark: #082c52;
  --ocean: #0288d1;
  --sand: #f4f8fc;
  --gold: #ffc107;
  --ink: #16222e;
  --muted: #5b6b7c;
  --line: #dce6f0;
  --card: #ffffff;
  --shadow-1: 0 1px 3px rgba(8,44,82,.08), 0 4px 14px rgba(8,44,82,.06);
  --shadow-2: 0 6px 18px rgba(8,44,82,.14), 0 2px 6px rgba(8,44,82,.08);
  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --body: "Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.55 var(--body); background: var(--sand); color: var(--ink); }
h1, h2, h3, .brand, strong { font-family: var(--display); }
:focus-visible { outline: 3px solid #29b6f6; outline-offset: 2px; border-radius: 4px; }

/* ---------- Top bar ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 18px;
  background: linear-gradient(135deg, var(--navy-dark), var(--navy) 55%, var(--ocean));
  color: #fff; position: sticky; top: 0; z-index: 50;
  box-shadow: 0 2px 16px rgba(8,44,82,.35);
}
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none;
  font-weight: 800; letter-spacing: .4px; font-size: 16px; }
.brand em { font-style: normal; color: var(--gold); }
#lang-select {
  width: auto; margin-top: 0; flex: none;
  padding: 7px 9px; border: 1px solid rgba(255,255,255,.4); border-radius: 999px;
  background: rgba(255,255,255,.14); color: #fff; font: inherit; font-size: 13px;
  font-weight: 700; cursor: pointer;
}
.brand { white-space: nowrap; }
#lang-select option { color: var(--ink); }

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 46px 18px 10px; max-width: 760px; margin: 0 auto; }
.hero h1 { font-size: clamp(30px, 5vw, 44px); color: var(--navy); margin: 0 0 10px; text-wrap: balance; }
.hero p { color: var(--muted); font-size: 17px; margin: 0 0 10px; }
.privacy-badge {
  display: inline-block; font-size: 13px !important; font-weight: 700; color: #14713d !important;
  background: #ddf3e4; border: 1px solid #b4e3c4; border-radius: 999px; padding: 7px 16px;
}

/* ---------- Tool grid ---------- */
.tool-cards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 16px; max-width: 1060px; margin: 28px auto 60px; padding: 0 18px;
}
.tool-card {
  text-align: left; border: 1px solid var(--line); border-radius: 16px; background: var(--card);
  padding: 20px 18px; cursor: pointer; font: inherit; color: var(--ink);
  box-shadow: var(--shadow-1);
  transition: transform .18s, box-shadow .18s;
  border-top: 4px solid var(--ocean);
}
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.tool-card .tc-ico {
  display: inline-grid; place-items: center; width: 46px; height: 46px;
  border-radius: 13px; font-size: 24px; margin-bottom: 10px; background: #e3f2fd;
}
.tool-card strong { display: block; font-size: 17px; color: var(--navy); margin-bottom: 4px; }
.tool-card p { margin: 0; font-size: 13px; color: var(--muted); }
/* per-tool accent colors */
.c1 { border-top-color: #0288d1; } .c1 .tc-ico { background: #e1f2fc; }
.c2 { border-top-color: #e53935; } .c2 .tc-ico { background: #fde5e4; }
.c3 { border-top-color: #2e9e5b; } .c3 .tc-ico { background: #def3e5; }
.c4 { border-top-color: #8e24aa; } .c4 .tc-ico { background: #f3e5f7; }
.c5 { border-top-color: #00acc1; } .c5 .tc-ico { background: #dff6f9; }
.c6 { border-top-color: #f4511e; } .c6 .tc-ico { background: #fde9e2; }
.c7 { border-top-color: #ffb300; } .c7 .tc-ico { background: #fdf3d8; }
.c8 { border-top-color: #3949ab; } .c8 .tc-ico { background: #e6e9f7; }
.c9 { border-top-color: #546e7a; } .c9 .tc-ico { background: #e8eef1; }

/* ---------- Tool view ---------- */
#tool-view { max-width: 720px; margin: 26px auto 70px; padding: 0 18px; }
#back { margin-bottom: 14px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 24px; box-shadow: var(--shadow-1);
}
.tool-panel h1 { color: var(--navy); margin: 0 0 4px; font-size: 26px; }
.lead { color: var(--muted); margin: 0 0 18px; }

#dropzone {
  border: 2px dashed #b3c8dc; border-radius: 14px; text-align: center;
  padding: 34px 16px; cursor: pointer; transition: border-color .15s, background .15s;
  background: #fbfdff;
}
#dropzone:hover, #dropzone.over { border-color: var(--ocean); background: #eef7fd; }
.dz-ico { font-size: 38px; }
#dropzone p { margin: 6px 0 0; }

#file-list { list-style: none; margin: 12px 0 0; padding: 0; }
#file-list li {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px; margin-top: 6px;
  background: #fff; font-size: 14px;
}
.f-name { font-weight: 600; color: var(--navy); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.f-size { color: var(--muted); font-size: 12px; margin-left: auto; white-space: nowrap; }
#file-list button { border: 1px solid var(--line); background: #fff; border-radius: 7px;
  cursor: pointer; padding: 3px 8px; font: inherit; font-size: 12px; }
#file-list .rm:hover { color: #e53935; border-color: #e53935; }
#file-list .mv:hover:not(:disabled) { color: var(--ocean); border-color: var(--ocean); }
#file-list .mv:disabled { opacity: .35; cursor: default; }

.opts { margin-top: 16px; }
label { display: block; font-size: 13px; font-weight: 600; margin: 12px 0 4px; }
label.check { display: flex; align-items: center; gap: 8px; font-weight: 400; font-size: 14px; }
input[type="text"], input[type="number"], select {
  width: 100%; padding: 10px 12px; border: 1.5px solid #c6d4e2; border-radius: 10px;
  font: inherit; background: #fff; margin-top: 4px;
}
input[type="range"] { width: 100%; accent-color: var(--ocean); }
input:focus, select:focus { border-color: var(--ocean); box-shadow: 0 0 0 3px rgba(2,136,209,.15); outline: none; }
output { font-weight: 700; color: var(--ocean); margin-left: 6px; }
.note { font-size: 12px; color: var(--muted); }

button.primary {
  width: 100%; margin-top: 18px; padding: 14px; border: none; border-radius: 12px;
  background: linear-gradient(135deg, var(--ocean), var(--navy)); color: #fff;
  font: inherit; font-weight: 700; font-size: 16px; cursor: pointer;
  box-shadow: 0 4px 14px rgba(2,136,209,.35); transition: transform .15s, opacity .15s;
}
button.primary:hover:not(:disabled) { transform: translateY(-1px); }
button.primary:disabled { opacity: .45; cursor: not-allowed; }
button.ghost {
  padding: 8px 16px; border: 1.5px solid #c6d4e2; border-radius: 10px; background: #fff;
  color: var(--navy); font: inherit; font-weight: 600; cursor: pointer;
}
button.ghost:hover { border-color: var(--ocean); }

#status { margin-top: 14px; font-weight: 600; color: var(--navy); min-height: 1.4em; }
#results { display: grid; gap: 8px; margin-top: 8px; }
.dl-item {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; border-radius: 10px; text-decoration: none;
  background: #ddf3e4; border: 1px solid #b4e3c4; color: #14713d; font-weight: 700;
}
.dl-item:hover { background: #cdedd8; }

footer {
  text-align: center; padding: 26px 18px 42px; border-top: 1px solid var(--line);
  background: var(--card); color: var(--muted);
}
footer p { margin: 4px 0; }
footer strong { color: var(--navy); letter-spacing: 1px; }
footer a { color: var(--ocean); font-weight: 600; text-decoration: none; }
footer a:hover { text-decoration: underline; }

@media (max-width: 560px) {
  .brand span { font-size: 14px; }
  .tool-cards { grid-template-columns: 1fr 1fr; }
  .tool-card p { display: none; }
}