/* Shared foundation for the tactidome site: design tokens, base elements, buttons,
   and form controls. Linked by index.html (the listing) and offer.html (the gated
   offer page) so the two can never drift apart. Page-specific layout stays in each
   page's own <style> block. */

:root {
  --bg: #ECEDE6; --surface: #F5F6F0; --surface-2: #E1E3D8;
  --ink: #21261D; --ink-soft: #565C4E; --ink-faint: #888D7C;
  --line: rgba(33,38,29,0.14); --line-strong: rgba(33,38,29,0.28);
  --accent: #5E6B4B; --accent-deep: #47512F; --accent-tint: rgba(94,107,75,0.10);
  --amber: #A9772F;
  --shadow-sm: 0 1px 2px rgba(33,38,29,.05);
  --shadow-lg: 0 1px 3px rgba(33,38,29,.06), 0 24px 50px -22px rgba(33,38,29,.28);
  --serif: 'Iowan Old Style', 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, 'Times New Roman', serif;
  --sans: 'Avenir Next', Avenir, 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, 'SF Mono', 'Cascadia Mono', Menlo, Consolas, monospace;
  --wrap: 1180px; --gutter: clamp(1.25rem, 5vw, 4rem);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14170F; --surface: #1C2016; --surface-2: #262B1B;
    --ink: #E9EBE0; --ink-soft: #A8AD9B; --ink-faint: #767C69;
    --line: rgba(233,235,224,0.13); --line-strong: rgba(233,235,224,0.26);
    --accent: #A0B27F; --accent-deep: #B9CB94; --accent-tint: rgba(160,178,127,0.13);
    --amber: #D6A45E;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
    --shadow-lg: 0 1px 3px rgba(0,0,0,.4), 0 28px 56px -22px rgba(0,0,0,.7);
  }
}
:root[data-theme="light"] {
  --bg: #ECEDE6; --surface: #F5F6F0; --surface-2: #E1E3D8;
  --ink: #21261D; --ink-soft: #565C4E; --ink-faint: #888D7C;
  --line: rgba(33,38,29,0.14); --line-strong: rgba(33,38,29,0.28);
  --accent: #5E6B4B; --accent-deep: #47512F; --accent-tint: rgba(94,107,75,0.10);
  --amber: #A9772F; --shadow-sm: 0 1px 2px rgba(33,38,29,.05);
  --shadow-lg: 0 1px 3px rgba(33,38,29,.06), 0 24px 50px -22px rgba(33,38,29,.28);
}
:root[data-theme="dark"] {
  --bg: #14170F; --surface: #1C2016; --surface-2: #262B1B;
  --ink: #E9EBE0; --ink-soft: #A8AD9B; --ink-faint: #767C69;
  --line: rgba(233,235,224,0.13); --line-strong: rgba(233,235,224,0.26);
  --accent: #A0B27F; --accent-deep: #B9CB94; --accent-tint: rgba(160,178,127,0.13);
  --amber: #D6A45E; --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow-lg: 0 1px 3px rgba(0,0,0,.4), 0 28px 56px -22px rgba(0,0,0,.7);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans);
       font-size: 1.0625rem; line-height: 1.7; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.08; margin: 0; text-wrap: balance; letter-spacing: -0.01em; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.eyebrow { font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.22em; color: var(--accent); margin: 0; }

.btn { display: inline-flex; align-items: center; gap: 0.55em; font-family: var(--sans); font-size: 0.86rem; font-weight: 600;
       letter-spacing: 0.02em; padding: 0.85em 1.5em; border-radius: 2px; border: 1px solid transparent; cursor: pointer;
       transition: background .25s ease, color .25s ease, border-color .25s ease, transform .25s ease; }
.btn--solid { background: var(--accent); color: #F7F9F1; }
.btn--solid:hover { background: var(--accent-deep); transform: translateY(-1px); }
@media (prefers-color-scheme: dark) { .btn--solid { color: #171B10; } }
:root[data-theme="dark"] .btn--solid { color: #171B10; }
:root[data-theme="light"] .btn--solid { color: #F7F9F1; }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--ondark { background: rgba(255,255,255,0.10); color: #F4F3EC; border-color: rgba(255,255,255,0.32); backdrop-filter: blur(4px); }
.btn--ondark:hover { background: #F4F3EC; color: #23281B; border-color: #F4F3EC; }
.btn--light { background: #F4F3EC; color: #23281B; }
.btn--light:hover { background: #fff; transform: translateY(-1px); }
.btn[disabled] { opacity: .55; cursor: progress; transform: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 1px; }

/* --- forms (inquire + offer) ------------------------------------------------ */
.sform { display: grid; gap: 1rem; margin-top: 1.5rem; }
/* Grid stretches its children; keep the submit button at its natural width so it
   matches every other button on the site rather than becoming a full-width bar. */
.sform > button { justify-self: start; }
.fgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 560px) { .fgrid { grid-template-columns: 1fr; } }
.fld { display: grid; gap: 0.4rem; min-width: 0; }
.fld.span2 { grid-column: 1 / -1; }
.fld > span { font-family: var(--mono); font-size: 0.62rem; text-transform: uppercase;
  letter-spacing: 0.16em; color: var(--ink-faint); }
.fld > span em { font-style: normal; text-transform: none; letter-spacing: 0.06em; opacity: .8; }
.fld input, .fld select, .fld textarea {
  font-family: var(--sans); font-size: 0.98rem; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line-strong); border-radius: 3px; padding: 0.7em 0.8em; width: 100%;
  transition: border-color .2s ease, background .2s ease; }
.fld textarea { resize: vertical; min-height: 6.5em; line-height: 1.55; }
.fld input:hover, .fld select:hover, .fld textarea:hover { border-color: var(--accent); }
.fld input:invalid:not(:placeholder-shown) { border-color: #b1553c; }

/* Honeypot: off-screen rather than display:none — bots that skip hidden inputs
   still fill this one, and screen readers never reach it (aria-hidden + tabindex). */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.fcheck { display: flex; gap: 0.7rem; align-items: flex-start; font-size: 0.92rem;
  color: var(--ink-soft); line-height: 1.5; }
.fcheck input { margin-top: 0.3rem; flex: none; accent-color: var(--accent); }
.fnote { font-size: 0.9rem; line-height: 1.5; min-height: 1.2em; }
.fnote.ok { color: var(--accent); }
.fnote.err { color: #b1553c; }
@media (prefers-color-scheme: dark) { .fnote.err { color: #e08e73; } }
:root[data-theme="dark"] .fnote.err { color: #e08e73; }
.ffine { font-size: 0.78rem; color: var(--ink-faint); line-height: 1.6; }