/* ==========================================================================
   TXT File Maker — shared styles
   Mobile-first. Tokens → base → layout → components → sections.
   ========================================================================== */

/* ---------- Fonts ---------- */
/* Poppins, self-hosted (Latin subset). One file per weight. */
@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/poppins-latin-400.woff2") format("woff2");
}
@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("/assets/fonts/poppins-latin-500.woff2") format("woff2");
}
@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/assets/fonts/poppins-latin-600.woff2") format("woff2");
}
@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/assets/fonts/poppins-latin-700.woff2") format("woff2");
}
@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("/assets/fonts/poppins-latin-800.woff2") format("woff2");
}

/* Metric-matched fallback so the swap to Poppins causes minimal layout shift */
@font-face {
  font-family: "Poppins Fallback";
  src: local("Arial");
  ascent-override: 93.62%;
  descent-override: 31.21%;
  line-gap-override: 8.92%;
  size-adjust: 112.16%;
}

/* ---------- Design tokens ---------- */
:root {
  /* Colour */
  --c-bg: #ffffff;
  --c-surface: #F7F8FF;
  --c-surface-2: #EEF2FF;
  --c-border: #E4E7F2;
  --c-border-strong: #CDD3E6;
  --c-accent: #6366F1;
  --c-accent-soft: #C7D2FE;
  --c-primary: #4F46E5;
  --c-primary-hover: #4338CA;
  --c-text: #0F172A;
  --c-text-muted: #475569;
  --c-success: #15803d;
  --c-danger: #b91c1c;

  /* Type */
  --font-sans: "Poppins", "Poppins Fallback", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", Consolas, "SF Mono", Menlo, monospace;
  --fs-h1: clamp(2rem, 5vw + 0.5rem, 3rem);
  --fs-h2: clamp(1.5rem, 2.5vw + 0.75rem, 2rem);
  --fs-h3: 1.125rem;
  --fs-lead: clamp(1.0625rem, 0.6vw + 0.95rem, 1.25rem);
  --fs-small: 0.875rem;

  /* Spacing (8px scale) */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
  --s-8: 64px;
  --s-9: 96px;

  /* Shape & depth */
  --r-card: 12px;
  --r-control: 10px;
  --r-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(79, 70, 229, 0.06);
  --shadow-lg: 0 2px 4px rgba(15, 23, 42, 0.04), 0 16px 40px rgba(79, 70, 229, 0.1);

  /* Layout */
  --container: 1120px;
  --container-narrow: 960px;
  --gutter: 16px;
  --header-h: 64px;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --t-fast: 150ms;
  --t-base: 220ms;
}

@media (min-width: 640px) {
  :root { --gutter: 24px; }
}

/* ---------- Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + var(--s-4));
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

main { flex: 1; }

img,
svg { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  margin: 0 0 var(--s-3);
  line-height: 1.2;
  color: var(--c-text);
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; }
h2 { font-size: var(--fs-h2); font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: var(--fs-h3); font-weight: 600; letter-spacing: -0.01em; }

p { margin: 0 0 var(--s-4); }
p:last-child { margin-bottom: 0; }

a {
  color: var(--c-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--t-fast) var(--ease);
}
a:hover { color: var(--c-primary-hover); }

strong { font-weight: 600; }

:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--c-accent-soft); color: var(--c-text); }

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

.skip-link {
  position: absolute;
  top: var(--s-2);
  left: var(--s-2);
  z-index: 100;
  padding: var(--s-2) var(--s-4);
  background: var(--c-primary);
  color: #fff;
  font-weight: 600;
  border-radius: var(--r-control);
  transform: translateY(-150%);
  transition: transform var(--t-fast) var(--ease);
}
.skip-link:focus { transform: translateY(0); color: #fff; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: calc(var(--container-narrow) + var(--gutter) * 2); }

.section { padding-block: var(--s-8); }
.section--surface { background: var(--c-surface); }

@media (min-width: 900px) {
  .section { padding-block: var(--s-9); }
}

.section__header {
  max-width: 680px;
  margin: 0 auto var(--s-6);
  text-align: center;
}
.section__header p { color: var(--c-text-muted); font-size: var(--fs-lead); }
.section__header h2 { font-size: clamp(1.875rem, 3.5vw + 0.75rem, 2.5rem); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  margin: 0 0 var(--s-4);
  padding: 6px 14px;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--c-primary);
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-sm);
}
.eyebrow__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.18);
}

.text-accent { color: var(--c-primary); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  min-height: 44px;
  padding: 10px 18px;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: var(--r-control);
  cursor: pointer;
  transition: background-color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn:active { transform: translateY(1px); }
.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.btn--primary {
  background: var(--c-primary);
  color: #fff;
  box-shadow: 0 1px 2px rgba(67, 56, 202, 0.2), 0 4px 12px rgba(79, 70, 229, 0.2);
}
.btn--primary:not(:disabled):hover { background: var(--c-primary-hover); color: #fff; }

.btn--secondary {
  background: var(--c-bg);
  color: var(--c-text);
  border-color: var(--c-border-strong);
  box-shadow: var(--shadow-sm);
}
.btn--secondary svg { color: var(--c-accent); }
.btn--secondary:not(:disabled):hover { background: var(--c-surface); border-color: var(--c-accent-soft); color: var(--c-text); }

.btn--light {
  background: #fff;
  color: var(--c-primary);
}
.btn--light:hover { background: var(--c-surface-2); color: var(--c-primary-hover); }

.btn--lg { min-height: 52px; padding: 14px 24px; font-size: 1rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--c-border);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--s-4);
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--c-text);
  text-decoration: none;
}
.brand:hover { color: var(--c-text); }
.brand__logo { width: 32px; height: 32px; }
.brand__name span { color: var(--c-primary); }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-right: calc(var(--s-2) * -1);
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: var(--r-control);
  color: var(--c-text);
  cursor: pointer;
}
.nav-toggle:hover { background: var(--c-surface); }
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--t-base) var(--ease), background-color var(--t-fast) var(--ease);
}
.nav-toggle__bars { position: relative; }
.nav-toggle__bars::before,
.nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

.site-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav__link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 var(--s-3);
  font-weight: 500;
  color: var(--c-text-muted);
  text-decoration: none;
  border-radius: var(--r-control);
  transition: color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}
.site-nav__link:hover { color: var(--c-text); background: var(--c-surface); }
.site-nav__link[aria-current="page"] { color: var(--c-primary); }

.site-nav__cta { margin-top: var(--s-3); }
.site-nav__cta .btn { width: 100%; }

/* Mobile: dropdown panel under the header */
@media (max-width: 767.98px) {
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: var(--s-3) var(--gutter) var(--s-5);
    background: var(--c-bg);
    border-bottom: 1px solid var(--c-border);
    box-shadow: var(--shadow-lg);
  }
  /* Only hide when JS is available to open it again */
  .js .site-nav:not(.is-open) { display: none; }
  .site-nav.is-open { animation: nav-in var(--t-base) var(--ease); }
  .no-js .nav-toggle { display: none; }
}

@keyframes nav-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Desktop: inline nav */
@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .site-nav {
    display: flex;
    align-items: center;
    gap: var(--s-4);
  }
  .site-nav__list { flex-direction: row; gap: var(--s-1); }
  .site-nav__link { min-height: 40px; font-size: 0.9375rem; }
  .site-nav__cta { margin: 0; }
  .site-nav__cta .btn { width: auto; min-height: 40px; padding: 8px 16px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: var(--s-7) var(--s-6);
  text-align: center;
  isolation: isolate;
}
.hero::before {
  /* Warm glow */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: radial-gradient(55% 60% at 50% 55%, rgba(99, 102, 241, 0.13), rgba(99, 102, 241, 0) 70%);
}
.hero::after {
  /* Dotted grid, faded toward the edges */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(rgba(79, 70, 229, 0.14) 1px, transparent 1px);
  background-size: 22px 22px;
  -webkit-mask-image: radial-gradient(60% 70% at 50% 40%, #000 20%, transparent 75%);
  mask-image: radial-gradient(60% 70% at 50% 40%, #000 20%, transparent 75%);
}
.hero__inner { max-width: 760px; }
.hero__lead {
  max-width: 600px;
  margin-inline: auto;
  font-size: var(--fs-lead);
  color: var(--c-text-muted);
  text-wrap: pretty;
}

@media (min-width: 900px) {
  .hero { padding-block: var(--s-8) var(--s-7); }
}

/* ---------- Tool ---------- */
.tool-section { padding-bottom: var(--s-8); }

.tool-card {
  overflow: hidden;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: calc(var(--r-card) + 4px);
  box-shadow: var(--shadow-lg);
}

/* File name bar */
.tool-head {
  padding: var(--s-4);
  background: linear-gradient(135deg, var(--c-surface-2), var(--c-surface) 55%, var(--c-bg));
  border-bottom: 1px solid var(--c-border);
}

.filename__field {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  min-height: 58px;
  padding: 6px 6px 6px 8px;
  background: var(--c-bg);
  border: 2px solid var(--c-accent-soft);
  border-radius: var(--r-card);
  box-shadow: 0 2px 10px rgba(79, 70, 229, 0.07);
  cursor: text;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.filename__field:hover { border-color: #A5B4FC; }
.filename__field:focus-within {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.18);
}

.filename__icon {
  display: grid;
  flex-shrink: 0;
  place-items: center;
  width: 40px;
  height: 40px;
  color: #fff;
  background: var(--c-accent);
  border-radius: var(--r-control);
}
.filename__icon svg { width: 22px; height: 22px; }

.filename__input {
  flex: 1;
  width: 100%;
  min-width: 0;
  padding: 0;
  font: inherit;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--c-text);
  text-overflow: ellipsis;
  background: transparent;
  border: 0;
  outline: none;
}
.filename__input:focus-visible { outline: none; }
.filename__input::placeholder { font-weight: 500; color: #94A3B8; }

.filename__ext {
  flex-shrink: 0;
  padding: 8px 14px;
  font-weight: 700;
  color: var(--c-primary);
  background: var(--c-surface-2);
  border-radius: 8px;
  user-select: none;
}

@media (max-width: 479.98px) {
  .filename__field { gap: var(--s-2); min-height: 54px; }
  .filename__icon { width: 36px; height: 36px; }
  .filename__input { font-size: 1.0625rem; }
  .filename__ext { padding: 7px 10px; }
}

/* Toolbar */
.tool-toolbar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-2);
  padding: var(--s-3) var(--s-4);
  border-top: 1px solid var(--c-border);
}
.tool-toolbar .btn--primary { grid-column: 1 / -1; }

@media (min-width: 640px) {
  .tool-toolbar { display: flex; flex-wrap: wrap; }
  .tool-toolbar .btn { min-height: 40px; padding: 8px 14px; }
  .tool-toolbar .btn--primary { margin-left: auto; padding-inline: 18px; }
}

/* Editor */
.editor {
  position: relative;
  transition: box-shadow var(--t-fast) var(--ease);
}
.editor:focus-within { box-shadow: inset 3px 0 0 var(--c-accent); }

.editor__textarea {
  display: block;
  width: 100%;
  height: clamp(280px, 48vh, 460px);
  min-height: 200px;
  margin: 0;
  padding: var(--s-5) var(--s-5) var(--s-5) calc(var(--s-5) + 3px);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-text);
  tab-size: 4;
  background: var(--c-bg);
  border: 0;
  border-radius: 0;
  outline: none;
  resize: vertical;
}
.editor__textarea:focus-visible { outline: none; }
.editor__textarea::placeholder { color: #64748B; }

@media (max-width: 479.98px) {
  .editor__textarea { padding: var(--s-4); font-size: 1rem; } /* 16px stops iOS zoom */
}

.editor__drop {
  position: absolute;
  inset: var(--s-2);
  display: none;
  place-content: center;
  justify-items: center;
  gap: var(--s-2);
  font-weight: 600;
  color: var(--c-primary);
  background: rgba(247, 248, 255, 0.94);
  border: 2px dashed var(--c-accent);
  border-radius: var(--r-card);
  pointer-events: none;
}
.editor__drop svg { width: 32px; height: 32px; }
.editor.is-dragging .editor__drop { display: grid; }

/* Stats (compact chips above the editor) */
.tool-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: var(--s-2) var(--s-4);
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
}
.stat {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 2px 10px;
  font-size: 0.75rem;
  line-height: 1.6;
  white-space: nowrap;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-pill);
}
.stat dt { font-weight: 500; color: var(--c-text-muted); }
.stat dd {
  margin: 0;
  font-weight: 700;
  color: var(--c-text);
  font-variant-numeric: tabular-nums;
}

/* Fit all four chips on one row on phones */
@media (max-width: 479.98px) {
  .tool-stats { gap: 4px; padding-inline: var(--s-3); }
  .stat { gap: 4px; padding: 1px 8px; font-size: 0.6875rem; }
  .stat__long { display: none; } /* "Characters" → "Chars" */
}

/* Privacy note */
.tool-privacy {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0;
  padding: var(--s-3) var(--s-4);
  font-size: var(--fs-small);
  color: var(--c-text-muted);
  border-top: 1px solid var(--c-border);
}
.tool-privacy svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  color: var(--c-success);
}
.tool-privacy strong { color: var(--c-text); }

/* Toasts */
.toast-region {
  position: fixed;
  left: 50%;
  bottom: max(var(--s-4), env(safe-area-inset-bottom));
  z-index: 200;
  width: max-content;
  max-width: calc(100% - var(--s-6));
  transform: translateX(-50%);
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px 10px 14px;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.4;
  color: #fff;
  background: var(--c-text);
  border-radius: var(--r-card);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.24);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: auto;
  transition: opacity var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}
.toast.is-visible { opacity: 1; transform: none; }
.toast svg { flex-shrink: 0; width: 18px; height: 18px; }
.toast--success svg { color: #4ade80; }
.toast--error svg { color: #f87171; }
.toast--info svg { color: #A5B4FC; }
.toast__action {
  min-height: 36px;
  margin-left: var(--s-1);
  padding: 6px 12px;
  font: inherit;
  font-weight: 700;
  color: #A5B4FC;
  background: rgba(255, 255, 255, 0.1);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}
.toast__action:hover { background: rgba(255, 255, 255, 0.18); }

/* ---------- Cookie banner (created by ga.js) ---------- */
.cookie-banner {
  position: fixed;
  right: var(--s-4);
  bottom: var(--s-4);
  left: var(--s-4);
  z-index: 150;
  display: grid;
  gap: var(--s-3);
  max-width: 420px;
  padding: var(--s-4) var(--s-4) var(--s-4) 18px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.18);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}
.cookie-banner.is-visible { opacity: 1; transform: none; }
.cookie-banner[hidden] { display: none; }
.cookie-banner__body { display: flex; gap: var(--s-3); align-items: flex-start; }
.cookie-banner__body .icon-badge { width: 36px; height: 36px; border-radius: var(--r-control); }
.cookie-banner__body .icon-badge svg { width: 20px; height: 20px; }
.cookie-banner__text { margin: 0; font-size: var(--fs-small); line-height: 1.55; color: var(--c-text-muted); }
.cookie-banner__text strong { display: block; margin-bottom: 2px; font-size: 0.9375rem; color: var(--c-text); }
.cookie-banner__actions { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-2); }
.cookie-banner__actions .btn { min-height: 42px; padding: 8px 14px; font-size: 0.875rem; }

@media (min-width: 640px) {
  .cookie-banner { right: auto; bottom: var(--s-5); left: var(--s-5); }
}

/* Text-style button (footer "Cookie settings") */
.link-button {
  padding: 4px 0;
  font: inherit;
  color: var(--c-text-muted);
  text-align: left;
  background: none;
  border: 0;
  cursor: pointer;
}
.link-button:hover { color: var(--c-primary); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Content sections ---------- */
.section__kicker {
  margin-bottom: var(--s-2);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-primary);
}
.section__header .section__kicker { font-size: 0.8125rem; color: var(--c-primary); }
.section__header strong { color: var(--c-text); }

.icon-badge {
  display: grid;
  flex-shrink: 0;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--c-primary);
  background: var(--c-surface-2);
  border-radius: var(--r-card);
}
.icon-badge svg { width: 22px; height: 22px; }
.icon-badge--sm { width: 36px; height: 36px; border-radius: var(--r-control); }
.icon-badge--sm svg { width: 18px; height: 18px; }

/* Features */
.feature-grid {
  display: grid;
  gap: var(--s-4);
  margin: 0;
  padding: 0;
  list-style: none;
}
.feature {
  padding: var(--s-5);
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease),
    border-color var(--t-base) var(--ease);
}
.feature:hover {
  border-color: var(--c-accent-soft);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.feature .icon-badge { margin-bottom: var(--s-4); }
.feature h3 { margin-bottom: 6px; }
.feature p { font-size: 0.9375rem; color: var(--c-text-muted); }

@media (min-width: 640px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); gap: var(--s-5); }
}

/* Steps */
.steps {
  display: grid;
  gap: var(--s-4);
  margin: 0;
  padding: 0;
  list-style: none;
}
.step {
  position: relative;
  padding: var(--s-5);
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
}
.step__num {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: var(--s-4);
  font-weight: 700;
  color: #fff;
  background: var(--c-primary);
  border-radius: 50%;
  box-shadow: 0 0 0 5px var(--c-surface-2);
}
.step h3 { margin-bottom: 6px; }
.step p { font-size: 0.9375rem; color: var(--c-text-muted); }
.step p strong { color: var(--c-text); }

@media (min-width: 640px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .steps { grid-template-columns: repeat(4, 1fr); }
  /* Dashed connector between step numbers */
  .step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: calc(var(--s-5) + 17px);
    left: calc(var(--s-5) + 36px + var(--s-3));
    right: calc(var(--s-4) * -1);
    border-top: 2px dashed var(--c-accent-soft);
  }
}

.steps-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-4);
  margin-top: var(--s-6);
  text-align: center;
}
.steps-footer__tip { font-size: var(--fs-small); color: var(--c-text-muted); }

kbd {
  display: inline-block;
  min-width: 1.6em;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--c-text);
  text-align: center;
  background: var(--c-bg);
  border: 1px solid var(--c-border-strong);
  border-bottom-width: 2px;
  border-radius: 6px;
}

/* What is a TXT file */
.txt-info {
  display: grid;
  gap: var(--s-6);
  align-items: start;
}
@media (min-width: 900px) {
  .txt-info { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: var(--s-7); }
  .open-card { position: sticky; top: calc(var(--header-h) + var(--s-5)); }
}

.prose { max-width: 70ch; }
.prose h3 { margin-top: var(--s-6); font-size: 1.25rem; }
.prose code {
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--c-surface-2);
  border-radius: 6px;
}

.check-list {
  display: grid;
  gap: var(--s-2);
  margin: 0;
  padding: 0;
  list-style: none;
}
.check-list li {
  position: relative;
  padding-left: 30px;
}
.check-list li::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 0;
  width: 20px;
  height: 20px;
  background: var(--c-surface-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234F46E5' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center / 12px no-repeat;
  border-radius: 50%;
}

.txt-sample {
  margin: var(--s-5) 0;
  overflow: hidden;
  background: var(--c-bg);
  border: 1px solid var(--c-border-strong);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-md);
}
.txt-sample figcaption {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: 8px 14px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--c-text-muted);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
}
.txt-sample__dots { display: inline-flex; gap: 5px; }
.txt-sample__dots i {
  width: 9px;
  height: 9px;
  background: var(--c-border-strong);
  border-radius: 50%;
}
.txt-sample__dots i:first-child { background: var(--c-accent); }
.txt-sample pre {
  margin: 0;
  padding: var(--s-4);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
}

.open-card {
  padding: var(--s-5);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 16px;
}
.open-card h3 { margin-bottom: var(--s-4); font-size: 1.25rem; }
.open-list {
  display: grid;
  gap: var(--s-4);
  margin: 0 0 var(--s-5);
  padding: 0;
  list-style: none;
}
.open-list li { display: flex; gap: var(--s-3); align-items: flex-start; }
.open-list .icon-badge { background: var(--c-bg); }
.open-list li > div > strong,
.open-list li > div > span { display: block; }
.open-list li > div > span { font-size: 0.9375rem; color: var(--c-text-muted); }
.open-card__note {
  padding-top: var(--s-4);
  font-size: var(--fs-small);
  color: var(--c-text-muted);
  border-top: 1px solid var(--c-border);
}

/* FAQ */
.faq-list {
  display: grid;
  gap: var(--s-3);
  max-width: 800px;
  margin: 0 auto;
}
.faq {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
  transition: border-color var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease);
}
.faq[open] { border-color: var(--c-accent-soft); box-shadow: var(--shadow-md); }
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  min-height: 56px;
  padding: var(--s-3) var(--s-5);
  list-style: none;
  cursor: pointer;
  border-radius: var(--r-card);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover h3 { color: var(--c-primary); }
.faq summary h3 {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.4;
  transition: color var(--t-fast) var(--ease);
}
.faq summary::after {
  content: "";
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  margin-top: -5px;
  border-right: 2px solid var(--c-primary);
  border-bottom: 2px solid var(--c-primary);
  transform: rotate(45deg);
  transition: transform var(--t-base) var(--ease), margin var(--t-base) var(--ease);
}
.faq[open] summary::after { margin-top: 5px; transform: rotate(-135deg); }
.faq__answer {
  padding: 0 var(--s-5) var(--s-5);
  color: var(--c-text-muted);
}

.faq-more {
  margin-top: var(--s-6);
  text-align: center;
  color: var(--c-text-muted);
}
.faq-more a { font-weight: 600; }

/* ---------- Inner pages ---------- */
.btn--sm { min-height: 40px; padding: 8px 14px; font-size: 0.875rem; }

.page-hero {
  padding-block: var(--s-6) var(--s-7);
  background: linear-gradient(var(--c-surface), var(--c-bg));
  border-bottom: 1px solid var(--c-border);
}
.page-hero__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  margin-bottom: var(--s-6);
}
.page-hero h1 { margin-bottom: var(--s-3); font-size: clamp(1.875rem, 4vw + 0.5rem, 2.625rem); }
.page-hero__lead { max-width: 640px; margin: 0; font-size: var(--fs-lead); color: var(--c-text-muted); }
.page-hero__meta { margin-top: var(--s-3); font-size: var(--fs-small); color: var(--c-text-muted); }

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  font-size: var(--fs-small);
  color: var(--c-text-muted);
  list-style: none;
}
.breadcrumb li + li::before { content: "/"; margin-right: 6px; color: var(--c-border-strong); }
.breadcrumb a { color: var(--c-text-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--c-primary); text-decoration: underline; }
.breadcrumb [aria-current] { font-weight: 600; color: var(--c-text); }

.page-body { padding-block: var(--s-7) var(--s-6); }

.prose--page { max-width: 72ch; }
.prose--page > :first-child { margin-top: 0; }
.prose--page h2 { margin-top: var(--s-7); font-size: 1.5rem; scroll-margin-top: calc(var(--header-h) + var(--s-4)); }
.prose--page h3 { margin-top: var(--s-5); font-size: 1.125rem; }
.prose ul:not([class]),
.prose ol:not([class]) { margin: 0 0 var(--s-4); padding-left: 1.25rem; }
.prose ul:not([class]) li + li,
.prose ol:not([class]) li + li { margin-top: 6px; }
.prose li::marker { color: var(--c-accent); }

.callout {
  display: flex;
  gap: var(--s-3);
  margin-bottom: var(--s-6);
  padding: var(--s-4) var(--s-5);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-accent);
  border-radius: var(--r-card);
}
.callout svg { flex-shrink: 0; width: 22px; height: 22px; margin-top: 2px; color: var(--c-success); }
.callout ul { margin: var(--s-2) 0 0; }

.toc {
  margin-bottom: var(--s-6);
  padding: var(--s-4) var(--s-5);
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
}
.prose .toc h2 {
  margin: 0 0 var(--s-2);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text-muted);
}
.toc ol { margin: 0; padding-left: 1.25rem; }
.toc li { padding-block: 2px; }
@media (min-width: 640px) {
  .toc ol { columns: 2; column-gap: var(--s-6); }
}

/* Contact */
.contact-card {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  margin-bottom: var(--s-6);
  padding: var(--s-5);
  background: var(--c-bg);
  border: 2px solid var(--c-accent-soft);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
}
.prose .contact-card h2 { margin: 0 0 var(--s-1); font-size: 1.25rem; }
.contact-card p { color: var(--c-text-muted); }
.contact-card__email {
  display: inline-block;
  margin: var(--s-2) 0 var(--s-4);
  font-size: clamp(1.0625rem, 2.5vw + 0.5rem, 1.375rem);
  font-weight: 700;
  overflow-wrap: anywhere;
}
.contact-card__actions { display: flex; flex-wrap: wrap; gap: var(--s-2); }
@media (min-width: 640px) {
  .contact-card { flex-direction: row; padding: var(--s-6); }
}

/* Bottom CTA card */
.page-cta { padding-bottom: var(--s-8); }
.cta-card {
  padding: var(--s-6) var(--s-5);
  color: #fff;
  text-align: center;
  background:
    radial-gradient(60% 120% at 100% 0%, rgba(99, 102, 241, 0.35), transparent 60%),
    var(--c-primary);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
}
.cta-card h2 { margin-bottom: var(--s-2); color: #fff; }
.cta-card p { max-width: 480px; margin: 0 auto var(--s-5); color: #fff; }

/* 404 */
.error-page {
  display: grid;
  place-items: center;
  min-height: 70vh;
  padding-block: var(--s-7);
  text-align: center;
}
.error-page__code {
  margin: 0;
  font-size: clamp(5rem, 18vw, 8rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--c-accent);
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary-hover));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.error-page h1 { margin-top: var(--s-3); font-size: clamp(1.5rem, 3vw + 0.5rem, 2rem); }
.error-page p { max-width: 460px; margin-inline: auto; color: var(--c-text-muted); }
.error-page__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--s-2);
  margin-top: var(--s-5);
}
.error-page__links { margin-top: var(--s-5); font-size: var(--fs-small); }

/* ---------- Download modal ---------- */
.modal {
  width: calc(100% - var(--s-6));
  max-width: 460px;
  max-height: calc(100dvh - var(--s-6));
  padding: 0;
  overflow: auto;
  color: var(--c-text);
  background: var(--c-bg);
  border: 0;
  border-radius: 20px;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.28);
  overscroll-behavior: contain;
}
.modal[open] { animation: modal-in 260ms var(--ease); }
.modal::backdrop {
  background: rgba(15, 23, 42, 0.45);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.modal[open]::backdrop { animation: fade-in 200ms var(--ease); }

@keyframes modal-in {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to { opacity: 1; transform: none; }
}
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal__body:focus { outline: none; }
.modal__body {
  position: relative;
  padding: var(--s-6) var(--s-5) var(--s-5);
  text-align: center;
  background: radial-gradient(80% 45% at 50% 0%, var(--c-surface-2), transparent 70%);
}
@media (min-width: 480px) {
  .modal__body { padding: var(--s-7) var(--s-6) var(--s-6); }
}

.modal__close {
  position: absolute;
  top: var(--s-3);
  right: var(--s-3);
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  color: var(--c-text-muted);
  background: transparent;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.modal__close:hover { color: var(--c-text); background: var(--c-surface-2); }
.modal__close svg { width: 20px; height: 20px; }

.modal__title {
  margin-bottom: var(--s-2);
  font-size: clamp(1.25rem, 3vw + 0.5rem, 1.5rem);
}
.modal__desc { margin-bottom: 0; color: var(--c-text-muted); }

/* Visual: spinner + writing document → check mark */
.modal__visual {
  position: relative;
  width: 96px;
  height: 96px;
  margin: 0 auto var(--s-5);
}
.modal__ring {
  position: absolute;
  inset: 0;
  border: 4px solid var(--c-surface-2);
  border-top-color: var(--c-accent);
  border-right-color: var(--c-accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
.modal__doc {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 46px;
  height: 46px;
  transform: translate(-50%, -50%);
}
.modal__line {
  fill: var(--c-accent);
  transform-box: fill-box;
  transform-origin: left center;
  animation: write 1.4s var(--ease) infinite;
}
.modal__line:nth-of-type(2) { animation-delay: 0.2s; }
.modal__line:nth-of-type(3) { animation-delay: 0.4s; }

.modal__check {
  position: absolute;
  inset: 0;
  display: none;
  width: 100%;
  height: 100%;
}
.modal__check circle {
  fill: #dcfce7;
  stroke: var(--c-success);
  stroke-width: 2;
  transform-origin: center;
  animation: pop 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.modal__check path {
  fill: none;
  stroke: var(--c-success);
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 32;
  stroke-dashoffset: 32;
  animation: draw 420ms var(--ease) 180ms forwards;
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes write {
  0% { transform: scaleX(0); }
  45%, 100% { transform: scaleX(1); }
}
@keyframes pop {
  from { transform: scale(0.4); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
@keyframes draw { to { stroke-dashoffset: 0; } }

.modal__progress {
  height: 6px;
  margin: var(--s-5) auto 0;
  max-width: 260px;
  overflow: hidden;
  background: var(--c-surface-2);
  border-radius: var(--r-pill);
}
.modal__progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--c-accent), var(--c-primary));
  border-radius: inherit;
  transform-origin: left;
  animation: progress 1.3s var(--ease) forwards;
}
@keyframes progress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* States */
.modal__ready { display: none; }
.modal__body.is-ready .modal__ring,
.modal__body.is-ready .modal__doc,
.modal__body.is-ready .modal__progress { display: none; }
.modal__body.is-ready .modal__check { display: block; }
.modal__body.is-ready .modal__ready {
  display: block;
  animation: fade-up 300ms var(--ease);
}
@keyframes fade-up {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* File details */
.file-details {
  margin: var(--s-5) 0 0;
  padding: var(--s-1) var(--s-4);
  text-align: left;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
}
.file-details__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-1) var(--s-4);
  padding: 10px 0;
  font-size: 0.9375rem;
}
.file-details__row + .file-details__row { border-top: 1px dashed var(--c-border-strong); }
.file-details dt { color: var(--c-text-muted); }
.file-details dd {
  margin: 0 0 0 auto; /* stays right-aligned when it wraps under the label */
  font-weight: 600;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.file-details__name {
  min-width: 0;
  color: var(--c-primary);
  overflow-wrap: anywhere;
}

.file-details__summary span { white-space: nowrap; }


.modal__actions {
  display: grid;
  gap: var(--s-2);
  margin-top: var(--s-5);
}
@media (min-width: 480px) {
  .modal__actions { grid-template-columns: 1fr 1fr; }
}

.modal__disclaimer {
  margin: var(--s-5) 0 0;
  padding-top: var(--s-4);
  font-size: 0.75rem;
  line-height: 1.55;
  color: var(--c-text-muted);
  text-align: left;
  border-top: 1px solid var(--c-border);
}
.modal__disclaimer strong { color: var(--c-text); }

/* ---------- CTA band ---------- */
.cta-band {
  padding-block: var(--s-8);
  color: #fff;
  text-align: center;
  background:
    radial-gradient(60% 120% at 100% 0%, rgba(99, 102, 241, 0.35), transparent 60%),
    var(--c-primary);
}
.cta-band h2 { color: #fff; }
.cta-band p { max-width: 520px; margin: 0 auto var(--s-5); color: #fff; font-size: var(--fs-lead); }

/* ---------- Footer ---------- */
.site-footer {
  padding-block: var(--s-7) var(--s-5);
  font-size: 0.9375rem;
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
}
.site-footer__grid {
  display: grid;
  gap: var(--s-6);
}
.site-footer__about p { max-width: 360px; margin-top: var(--s-3); color: var(--c-text-muted); }

.footer-nav h2 {
  margin-bottom: var(--s-3);
  font-size: var(--fs-small);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-text);
}
.footer-nav ul { margin: 0; padding: 0; list-style: none; }
.footer-nav li + li { margin-top: var(--s-1); }
.footer-nav a {
  display: inline-block;
  padding-block: 4px;
  color: var(--c-text-muted);
  text-decoration: none;
}
.footer-nav a:hover { color: var(--c-primary); text-decoration: underline; }

.privacy-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  margin-top: var(--s-4);
  padding: 6px 12px;
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--c-success);
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-pill);
}
.privacy-pill svg { width: 16px; height: 16px; }

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-2);
  margin-top: var(--s-7);
  padding-top: var(--s-5);
  font-size: var(--fs-small);
  color: var(--c-text-muted);
  border-top: 1px solid var(--c-border);
}
.site-footer__bottom p { margin: 0; }

@media (min-width: 640px) {
  .site-footer__grid { grid-template-columns: repeat(3, 1fr); }
  .site-footer__about { grid-column: 1 / -1; }
}
@media (min-width: 900px) {
  .site-footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .site-footer__about { grid-column: auto; }
}