/* checkbeforeyou.app — shared styles. No framework, no build step. */

:root {
  --bg: #fbfbf9;
  --surface: #ffffff;
  --text: #1c1f23;
  --muted: #5b6168;
  --border: #e3e3de;
  --accent: #0e7c66;
  --accent-text: #ffffff;
  --accent-soft: #e6f3ef;
  --warn-soft: #fff6e0;
  --no-soft: #fdecea;
  --radius: 12px;
  --max: 72rem;
  --measure: 42rem;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121416;
    --surface: #1b1e21;
    --text: #e8e9ea;
    --muted: #a3a9b0;
    --border: #2c3135;
    --accent: #3fc4a6;
    --accent-text: #0b1210;
    --accent-soft: #17302a;
    --warn-soft: #33290f;
    --no-soft: #3a1d1b;
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 1.0625rem/1.6 var(--font);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

img, svg { max-width: 100%; height: auto; }

a { color: var(--accent); text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

h1, h2, h3 { line-height: 1.25; margin: 0 0 0.6em; }
h1 { font-size: clamp(1.75rem, 1.3rem + 2vw, 2.5rem); letter-spacing: -0.01em; }
h2 { font-size: 1.4rem; margin-top: 2em; }
h3 { font-size: 1.1rem; margin-top: 1.5em; }
p, ul, ol { margin: 0 0 1em; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--accent-text);
  padding: 0.5rem 1rem; z-index: 10;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 1rem; }

/* Header */
.site-header { border-bottom: 1px solid var(--border); background: var(--surface); }
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-top: 0.75rem; padding-bottom: 0.75rem; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 0.55rem; text-decoration: none; color: var(--text); }
.brand svg { width: 2rem; height: 2rem; flex: none; }
.brand-name { font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; }
.brand-name span { color: var(--accent); }
.tagline { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* Main layout */
main { flex: 1; padding: 2rem 0 3rem; }
.page-grid { display: grid; gap: 2rem; }
@media (min-width: 70rem) {
  .page-grid.has-sidebar { grid-template-columns: minmax(0, 1fr) 18.75rem; }
}
.content { min-width: 0; }
.prose { max-width: var(--measure); }
.lead { font-size: 1.15rem; color: var(--muted); max-width: var(--measure); }

/* Tool area */
.tool {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem; margin: 1.5rem 0;
}
@media (min-width: 40rem) { .tool { padding: 1.75rem; } }
.tool-coming {
  text-align: center; padding: 2.5rem 1.25rem; background: var(--accent-soft);
  border-color: transparent;
}
.tool-coming p { margin: 0; }

/* Buttons and forms (for tools) */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  font: inherit; font-weight: 600; padding: 0.7rem 1.2rem; min-height: 2.75rem;
  border-radius: 8px; border: 2px solid var(--accent);
  background: var(--accent); color: var(--accent-text); cursor: pointer; text-decoration: none;
}
.btn:hover { filter: brightness(1.08); }
.btn-secondary { background: transparent; color: var(--accent); }
label { font-weight: 600; display: block; margin-bottom: 0.3rem; }
input, select, textarea {
  font: inherit; color: inherit; background: var(--bg);
  border: 1px solid var(--border); border-radius: 8px; padding: 0.6rem 0.75rem; width: 100%;
}
textarea, code, pre { font-family: var(--mono); }
code { font-size: 0.92em; background: var(--accent-soft); padding: 0.1em 0.35em; border-radius: 4px; }

.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;
}

/* File drop zone (shared by file tools) */
.dropzone {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.35rem;
  text-align: center; padding: 2rem 1rem; min-height: 11rem; cursor: pointer;
  border: 2px dashed var(--border); border-radius: var(--radius); background: var(--bg);
  font-weight: 400; margin: 0; transition: border-color 0.15s, background 0.15s;
}
.dropzone:hover, .dropzone.is-dragging { border-color: var(--accent); background: var(--accent-soft); }
.dropzone:focus-within { outline: 3px solid var(--accent); outline-offset: 2px; }
.dropzone-icon { width: 2.5rem; height: 2.5rem; color: var(--accent); }
.dropzone-title { font-weight: 700; font-size: 1.15rem; color: var(--accent); }
.dropzone-hint { color: var(--muted); font-size: 0.93rem; }
.tool-note { display: flex; gap: 0.4rem; align-items: center; justify-content: center; color: var(--muted); font-size: 0.93rem; margin: 0.9rem 0 0; text-align: center; }
.tool-note svg { width: 1rem; height: 1rem; flex: none; }

/* Results (shared by file tools) */
.results:not(:empty) { margin-top: 1.25rem; display: grid; gap: 1rem; }
.result {
  display: grid; gap: 1rem; padding: 1rem; border: 1px solid var(--border);
  border-radius: var(--radius); background: var(--bg);
}
@media (min-width: 36rem) { .result { grid-template-columns: 8rem minmax(0, 1fr); align-items: start; } }
.result-thumb { width: 100%; max-height: 12rem; object-fit: contain; border-radius: 8px; background: var(--border); }
@media (min-width: 36rem) { .result-thumb { width: 8rem; height: 8rem; object-fit: cover; } }
.result-body { min-width: 0; grid-column: -2; }
.result-name { margin: 0 0 0.5rem; font-size: 1rem; overflow-wrap: anywhere; }
.findings { list-style: none; padding: 0; margin: 0 0 0.75rem; font-size: 0.97rem; }
.findings li { padding: 0.15rem 0; }
.findings .is-warn { background: var(--warn-soft); border-radius: 6px; padding: 0.4rem 0.6rem; margin-bottom: 0.3rem; }
.result-status { margin: 0 0 0.75rem; font-weight: 600; }
.result-status.is-ok { color: var(--accent); }
.result-status.is-error { color: #b42318; }
@media (prefers-color-scheme: dark) { .result-status.is-error { color: #ff8a80; } }
.result-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; }

/* Measurement forms (shared by calculator tools) */
.calc-form fieldset { border: 0; padding: 0; margin: 0 0 1.25rem; min-width: 0; }
.calc-form legend { font-weight: 700; font-size: 1.05rem; margin-bottom: 0.6rem; padding: 0; }
.field-grid { display: grid; gap: 0.9rem 1rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 44rem) { .field-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.field label { font-size: 0.95rem; margin-bottom: 0.25rem; }
.field small { display: block; color: var(--muted); font-size: 0.82rem; line-height: 1.35; margin-top: 0.25rem; }
.input-unit { position: relative; }
.input-unit input { padding-right: 2.6rem; font-variant-numeric: tabular-nums; }
.input-unit .unit { position: absolute; right: 0.7rem; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 0.9rem; pointer-events: none; }
input[type="number"] { -moz-appearance: textfield; }
input[type="number"]::-webkit-inner-spin-button, input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.calc-form .form-top { display: flex; justify-content: flex-end; margin-bottom: 0.5rem; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 999px; padding: 3px; gap: 2px; background: var(--bg); margin: 0; }
.seg label { margin: 0; font-weight: 600; font-size: 0.9rem; cursor: pointer; }
.seg input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.seg span { display: block; padding: 0.3rem 0.9rem; border-radius: 999px; color: var(--muted); }
.seg input:checked + span { background: var(--accent); color: var(--accent-text); }
.seg input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 1px; }
.choice-row { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; margin: 0.4rem 0 0.9rem; }
.choice-row label { font-weight: 400; display: inline-flex; align-items: center; gap: 0.4rem; margin: 0; cursor: pointer; }
.choice-row input { width: auto; accent-color: var(--accent); }
.choice-label { font-weight: 600; font-size: 0.95rem; margin: 1rem 0 0; }
.hall-field { max-width: 14rem; }

/* Calculator results */
.calc-result { border-top: 1px solid var(--border); padding-top: 1.25rem; }
.result-empty { color: var(--muted); margin: 0; }
.verdict { border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: 1.25rem; }
.verdict.is-fits { background: var(--accent-soft); }
.verdict.is-tight { background: var(--warn-soft); }
.verdict.is-no { background: var(--no-soft); }
.verdict.is-maybe { background: var(--warn-soft); }
.verdict-head { font-size: 1.35rem; font-weight: 700; margin: 0 0 0.2rem; }
.verdict-sub { margin: 0; }
.methods-title { font-size: 1rem; margin: 1.25rem 0 0.6rem; }
.methods { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.6rem; }
@media (min-width: 44rem) { .methods { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.method { border: 1px solid var(--border); border-radius: 10px; padding: 0.75rem 0.9rem; background: var(--bg); }
.method-top { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.method p { margin: 0.25rem 0 0; font-size: 0.93rem; }
.method-how { color: var(--muted); }
.pill { font-size: 0.75rem; font-weight: 700; padding: 0.15rem 0.55rem; border-radius: 999px; white-space: nowrap; background: var(--border); }
.method.is-fits .pill { background: var(--accent); color: var(--accent-text); }
.method.is-tight .pill { background: var(--warn-soft); outline: 1px solid #c99a06; }
.method.is-maybe .pill { background: var(--warn-soft); outline: 1px dashed #c99a06; }
.method.is-no .pill { background: var(--no-soft); outline: 1px solid #d0473c; }
.tips { margin: 0 0 1rem; padding-left: 1.2rem; font-size: 0.95rem; }
.result-note { color: var(--muted); font-size: 0.88rem; margin: 0.75rem 0 0; }
.figure { margin: 1rem 0 1.5rem; }
.figure svg { display: block; width: 100%; max-width: 26rem; height: auto; }
.figure figcaption { color: var(--muted); font-size: 0.9rem; margin-top: 0.4rem; }

/* Tool cards (homepage, other checks) */
.tool-list { list-style: none; padding: 0; margin: 1.5rem 0; display: grid; gap: 1rem; }
@media (min-width: 48rem) { .tool-list { grid-template-columns: repeat(3, 1fr); } }
.tool-card {
  display: block; height: 100%; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem; text-decoration: none; color: var(--text);
  transition: border-color 0.15s;
}
.tool-card:hover { border-color: var(--accent); }
.tool-card h3 { margin: 0 0 0.35rem; color: var(--accent); }
.tool-card p { margin: 0; color: var(--muted); font-size: 0.97rem; }
.badge {
  display: inline-block; font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.04em; padding: 0.15rem 0.5rem; border-radius: 999px;
  background: var(--warn-soft); color: var(--text); margin-top: 0.75rem;
}

.points { list-style: none; padding: 0; display: grid; gap: 1rem; margin: 1rem 0 0; }
@media (min-width: 48rem) { .points { grid-template-columns: repeat(3, 1fr); } }
.points strong { display: block; margin-bottom: 0.2rem; }
.points li { color: var(--muted); }
.points li strong { color: var(--text); }

/* Explainer and FAQ */
.explainer { max-width: var(--measure); }
.faq details { border-bottom: 1px solid var(--border); padding: 0.8rem 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 0.6rem 0 0; }

.other-checks { margin-top: 2.5rem; }
.other-checks h2 { margin-top: 0; }

/* Ad slots — hidden until an ad is placed inside them */
.ad-slot { margin: 2rem auto; text-align: center; min-height: 100px; }
.ad-slot:empty { display: none; }
.ad-slot--sidebar { position: sticky; top: 1rem; display: none; }
@media (min-width: 70rem) { .ad-slot--sidebar:not(:empty) { display: block; } }

/* Footer */
.site-footer { border-top: 1px solid var(--border); background: var(--surface); font-size: 0.93rem; color: var(--muted); }
.site-footer .wrap {
  display: flex; flex-wrap: wrap; gap: 0.75rem 2rem; justify-content: space-between;
  padding-top: 1.5rem; padding-bottom: 1.5rem;
}
.site-footer nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; }
.site-footer p { margin: 0; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }