/* === Lokalne variable fonts (zero zewnętrznych zależności) === */
@font-face {
  font-family: 'Inter';
  src: url('fonts/Inter-VariableFont_opsz,wght.ttf') format('truetype-variations');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('fonts/Inter-Italic-VariableFont_opsz,wght.ttf') format('truetype-variations');
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('fonts/JetBrainsMono-VariableFont_wght.ttf') format('truetype-variations');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('fonts/JetBrainsMono-Italic-VariableFont_wght.ttf') format('truetype-variations');
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

:root {
  --bg: #ffffff;
  --bg-soft: #f8f7f4;
  --bg-dark: #0b1220;
  --ink: #0f172a;
  --ink-2: #1e293b;
  --muted: #64748b;
  --line: #e7e5e0;
  --line-strong: #d4d2cb;
  --accent: #c1272d;
  --accent-dark: #9c1f24;
  --accent-soft: #fef2f2;
  --success: #16a34a;
  --success-soft: #f0fdf4;
  --warn: #d97706;
  --warn-soft: #fffbeb;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 10px 20px -5px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 24px -8px rgba(15, 23, 42, 0.12), 0 24px 48px -12px rgba(15, 23, 42, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-soft);
  color: var(--ink);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; font-weight: 700; }
h1 { font-size: clamp(28px, 4vw, 38px); letter-spacing: -0.03em; font-weight: 800; }
h2 { font-size: 22px; }
h3 { font-size: 17px; font-weight: 600; }
p { color: var(--ink-2); }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); }
code, .mono { font-family: 'JetBrains Mono', monospace; }

/* HEADER */
header.site {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
header.site .wrap {
  max-width: 800px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; color: var(--ink); font-size: 15px;
}
.brand .logo {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px;
}
header.site .back {
  font-size: 14px; color: var(--muted); font-weight: 500;
}

/* MAIN */
main {
  flex: 1;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  padding: 50px 24px 70px;
}
.intro {
  text-align: center;
  margin-bottom: 32px;
}
.intro .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--success-soft);
  color: var(--success);
  padding: 6px 14px; border-radius: 100px;
  font-size: 13px; font-weight: 600;
  margin-bottom: 18px;
}
.intro .eyebrow svg { width: 14px; height: 14px; }
.intro p {
  color: var(--muted);
  font-size: 17px;
  max-width: 520px;
  margin: 14px auto 0;
}

/* CARD */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-md);
}
.card.card-center { text-align: center; }

/* FORM */
textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 15px;
  font-family: 'JetBrains Mono', monospace;
  line-height: 1.5;
  background: var(--bg-soft);
  color: var(--ink);
  resize: vertical;
  min-height: 160px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
textarea:focus, select:focus, input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(193, 39, 45, 0.12);
  background: #fff;
}
.field-label {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; font-weight: 600; color: var(--ink-2);
  margin-bottom: 8px;
}
.field-label .counter { color: var(--muted); font-weight: 500; font-family: 'JetBrains Mono', monospace; }
.options-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 18px;
}
.options-row label {
  font-size: 13px; font-weight: 600; color: var(--ink-2);
  margin-bottom: 6px; display: block;
}
select, input[type="text"] {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

/* BUTTON */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  font-family: inherit;
  letter-spacing: -0.01em;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  width: 100%;
}
.btn-primary {
  background: var(--accent); color: #fff !important;
  box-shadow: 0 1px 2px rgba(193, 39, 45, 0.25), 0 4px 12px -2px rgba(193, 39, 45, 0.35);
}
.btn-primary:hover:not(:disabled) { background: var(--accent-dark); transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-outline {
  background: #fff; color: var(--ink) !important;
  border-color: var(--line-strong);
}
.btn-outline:hover { border-color: var(--ink); background: var(--bg-soft); }
.btn-dark {
  background: var(--ink); color: #fff !important;
}
.btn-dark:hover { background: var(--ink-2); }

/* Modyfikatory szerokości przycisku — używane zamiast inline style="" */
.btn.btn-narrow { max-width: 300px; margin: 0 auto; }
.btn.btn-auto { width: auto; }

.submit-wrap { margin-top: 24px; }

/* Drobne pomocnicze klasy zamiast inline style="" */
.muted-note { margin-top: 16px; font-size: 13px; color: var(--muted); }
.error-actions { margin-top: 20px; }
.footer-fine { margin-top: 6px; font-size: 12px; }

/* RESULT */
.result-box {
  background: var(--success-soft);
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 20px;
}
.result-box .title {
  display: flex; align-items: center; gap: 8px;
  color: var(--success); font-weight: 700; font-size: 15px;
  margin-bottom: 8px;
}
.link-display {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--ink);
  word-break: break-all;
  line-height: 1.5;
  margin: 14px 0;
  user-select: all;
}
.copy-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}

/* VIEW MODE */
.secret-display {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.6;
  max-height: 400px;
  overflow-y: auto;
}
.warning-box {
  background: var(--warn-soft);
  border-left: 3px solid var(--warn);
  border-radius: 6px;
  padding: 14px 16px;
  margin-top: 20px;
  font-size: 14px;
  color: #92400e;
}
.error-box {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 18px 20px;
  color: var(--accent-dark);
}
.error-box h2 { color: var(--accent-dark); margin-bottom: 8px; }

/* TRUST FOOTER */
.trust-strip {
  max-width: 720px; margin: 30px auto 0; padding: 0 24px;
}
.trust-strip ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  list-style: none;
}
.trust-strip li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 13px;
  color: var(--ink-2);
  display: flex; align-items: flex-start; gap: 10px;
}
.trust-strip svg {
  width: 18px; height: 18px;
  color: var(--success);
  flex-shrink: 0;
  margin-top: 1px;
}

/* FOOTER */
footer.site {
  text-align: center;
  padding: 30px 24px;
  color: var(--muted);
  font-size: 13px;
}
footer.site a { color: var(--muted); }

/* UTIL */
[hidden] { display: none !important; }
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: #fff;
  padding: 12px 20px; border-radius: 100px;
  font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow-lg);
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 100;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }

@media (max-width: 600px) {
  main { padding: 30px 16px 50px; }
  .card { padding: 22px; }
  .options-row { grid-template-columns: 1fr; }
  .copy-row { grid-template-columns: 1fr; }
}