/* 00-base :: style.css - a clean, minimal design system that proves the kernel contract.
   Layout/typography here; per-section background + text COLOR is set inline by each
   sections/*.php via isrx_role()/isrx_on() so the WCAG contrast guarantee holds mechanically. */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  overflow-x: hidden;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--ink);
  background: var(--surface);
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: var(--lh-tight); margin: 0; font-weight: 800; }
p { margin: 0 0 1rem; }
em { font-style: normal; color: var(--accent); }

.isrx-wrap { width: min(100% - 2 * var(--gutter), var(--wrap)); margin-inline: auto; }
.isrx-sec { padding-block: var(--sec-y); }
.isrx-eyebrow { display: inline-block; font-size: var(--fs-small); font-weight: 700; letter-spacing: 0.04em; text-transform: none; opacity: 0.85; margin-bottom: 0.6rem; }
.isrx-h2 { font-size: var(--fs-h2); margin-bottom: 0.6rem; }
.isrx-lead { font-size: 1.06rem; max-width: 60ch; }
.isrx-center { text-align: center; }
.isrx-center .isrx-lead { margin-inline: auto; }

/* buttons */
.isrx-btn { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.8rem 1.5rem; border-radius: 999px; font-weight: 700; font-family: var(--font-display); border: 1.5px solid transparent; cursor: pointer; transition: transform 0.2s var(--ease), filter 0.2s var(--ease); }
.isrx-btn:hover { transform: translateY(-1px); filter: brightness(0.97); }
.isrx-btn--primary { background: var(--accent); color: var(--accent-ink); }
.isrx-btn--ghost { background: transparent; border-color: currentColor; }
.isrx-btns { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.4rem; }

/* header / nav */
.isrx-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--line); backdrop-filter: saturate(1.2) blur(6px); }
.isrx-nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 0.75rem; }
.isrx-brand { display: flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-weight: 800; }
.isrx-brand img { height: 42px; width: auto; }
.isrx-brand small { display: block; font-size: 0.72rem; font-weight: 600; opacity: 0.7; }
.isrx-menu { display: flex; align-items: center; gap: 1.1rem; }
.isrx-menu a { font-size: 0.94rem; font-weight: 600; }
.isrx-menu a:hover { color: var(--accent); }
.isrx-drop { position: relative; }
.isrx-drop > .isrx-drop-panel { position: absolute; top: 130%; inset-inline-end: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 0.5rem; min-width: 200px; box-shadow: var(--shadow); display: none; }
.isrx-drop:hover > .isrx-drop-panel, .isrx-drop:focus-within > .isrx-drop-panel { display: block; }
.isrx-drop-panel a { display: block; padding: 0.45rem 0.6rem; border-radius: 8px; }
.isrx-drop-panel a:hover { background: var(--surface-2); }
.isrx-burger { display: none; flex-direction: column; gap: 4px; background: none; border: 0; cursor: pointer; padding: 6px; }
.isrx-burger span { width: 24px; height: 2px; background: currentColor; }

/* hero */
.isrx-hero { position: relative; min-height: 78vh; display: flex; align-items: flex-end; overflow: hidden; }
.isrx-hero__img { position: absolute; inset: 0; }
.isrx-hero__img img { width: 100%; height: 100%; object-fit: cover; }
.isrx-hero__scrim { position: absolute; inset: 0; }
.isrx-hero__in { position: relative; padding-block: clamp(2.5rem, 6vw, 6rem); }
.isrx-hero h1 { font-size: var(--fs-hero); max-width: 18ch; }
.isrx-hero .isrx-lead { margin-top: 1.1rem; }
.isrx-hero__trust { margin-top: 1.3rem; font-size: 0.92rem; opacity: 0.92; }
.isrx-ihero { min-height: 44vh; }

/* generic grids / cards */
.isrx-grid { display: grid; gap: clamp(1rem, 2.5vw, 1.6rem); }
.isrx-grid--2 { grid-template-columns: repeat(2, 1fr); }
.isrx-grid--3 { grid-template-columns: repeat(3, 1fr); }
.isrx-grid--4 { grid-template-columns: repeat(4, 1fr); }
.isrx-card { background: var(--surface); color: var(--ink); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow); }
.isrx-card h3 { font-size: var(--fs-h3); margin-bottom: 0.4rem; }
.isrx-card p { margin: 0; color: var(--ink-soft); }
.isrx-tag { display: inline-block; font-size: 0.74rem; font-weight: 700; padding: 0.2rem 0.6rem; border-radius: 999px; background: var(--accent); color: var(--accent-ink); }

/* about split */
.isrx-split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; }
.isrx-split img { border-radius: var(--radius-lg); width: 100%; }
.isrx-sig { margin-top: 1.2rem; font-family: var(--font-display); font-weight: 800; }
.isrx-sig small { display: block; font-weight: 600; opacity: 0.7; }

/* service cards (link) */
.isrx-svc { overflow: hidden; padding: 0; }
.isrx-svc__img { position: relative; aspect-ratio: 16/10; }
.isrx-svc__img img { width: 100%; height: 100%; object-fit: cover; }
.isrx-svc__img .isrx-tag { position: absolute; inset-block-start: 0.75rem; inset-inline-start: 0.75rem; }
.isrx-svc__b { padding: 1.25rem; }

/* method steps */
.isrx-step { display: flex; gap: 1rem; align-items: flex-start; }
.isrx-step__n { font-family: var(--font-display); font-weight: 900; font-size: 1.6rem; color: var(--accent-strong); min-width: 2.4ch; }

/* checklist / bullets */
.isrx-check { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: 0.55rem; }
.isrx-check li { display: flex; gap: 0.55rem; align-items: flex-start; }
.isrx-check li::before { content: "✓"; color: var(--accent-strong); font-weight: 800; }

/* faq */
.isrx-faq { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.isrx-faq details { border-bottom: 1px solid var(--line); }
.isrx-faq details:last-child { border-bottom: 0; }
.isrx-faq summary { cursor: pointer; padding: 1.05rem 1.25rem; font-weight: 700; font-family: var(--font-display); list-style: none; color: var(--ink); }
.isrx-faq summary::-webkit-details-marker { display: none; }
.isrx-faq .isrx-faq__a { padding: 0 1.25rem 1.1rem; color: var(--ink-soft); }

/* gallery */
.isrx-gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem; }
.isrx-gallery img { aspect-ratio: 1; object-fit: cover; border-radius: 12px; }

/* testimonials */
.isrx-quote { background: var(--surface); color: var(--ink); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.isrx-quote .isrx-stars { color: var(--accent-strong); letter-spacing: 2px; }
.isrx-quote cite { display: block; margin-top: 0.9rem; font-style: normal; font-weight: 700; }
.isrx-quote cite small { display: block; font-weight: 600; opacity: 0.7; }

/* success / story */
.isrx-story { display: grid; grid-template-columns: 0.7fr 1.3fr; gap: 1.4rem; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.isrx-story img { width: 100%; height: 100%; object-fit: cover; min-height: 220px; }
.isrx-story__b { padding: 1.4rem; }
.isrx-ba { display: flex; gap: 0.6rem; flex-wrap: wrap; font-size: 0.85rem; margin-bottom: 0.6rem; }
.isrx-ba span { padding: 0.2rem 0.6rem; border-radius: 999px; border: 1px solid var(--line); }

/* pricing */
.isrx-price { text-align: center; }
.isrx-price .isrx-amt { font-family: var(--font-display); font-weight: 900; font-size: 2rem; color: var(--accent-strong); }
.isrx-price ul { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: 0.45rem; text-align: start; }
.isrx-price li::before { content: "✓ "; color: var(--accent-strong); font-weight: 800; }

/* contact / form */
.isrx-contact-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.isrx-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1.2rem 0; }
.isrx-chip { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.35rem 0.8rem; border: 1px solid currentColor; border-radius: 999px; font-size: 0.85rem; }
.isrx-form { background: var(--surface); color: var(--ink); border-radius: var(--radius-lg); padding: 1.6rem; box-shadow: var(--shadow); }
.isrx-form h3 { font-size: var(--fs-h3); margin-bottom: 0.2rem; }
.isrx-form input, .isrx-form select, .isrx-form textarea { width: 100%; margin-top: 0.7rem; padding: 0.85rem 1rem; border: 1px solid var(--line); border-radius: 12px; font: inherit; background: var(--surface); color: var(--ink); }
.isrx-form textarea { min-height: 96px; resize: vertical; }
.isrx-form .isrx-btn { margin-top: 0.9rem; width: 100%; justify-content: center; }

/* legal */
.isrx-legal { max-width: 74ch; }
.isrx-legal p { margin-bottom: 1.1rem; }

/* footer */
.isrx-footer { padding-block: clamp(2.5rem, 4vw, 4rem) 1.5rem; }
.isrx-footer__cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2rem; }
.isrx-footer h4 { font-size: 0.95rem; margin-bottom: 0.6rem; }
.isrx-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.35rem; font-size: 0.9rem; opacity: 0.9; }
.isrx-footer__bar { margin-top: 2rem; padding-top: 1.2rem; border-top: 1px solid rgba(255,255,255,0.15); display: flex; flex-wrap: wrap; gap: 0.6rem; justify-content: space-between; font-size: 0.82rem; opacity: 0.85; }
.isrx-credit a { font-weight: 700; }

/* mobile */
@media (max-width: 900px) {
  .isrx-grid--3, .isrx-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .isrx-split, .isrx-contact-grid, .isrx-story { grid-template-columns: 1fr; }
  .isrx-gallery { grid-template-columns: repeat(2, 1fr); }
  .isrx-footer__cols { grid-template-columns: 1fr 1fr; }
  .isrx-menu { display: none; }
  .isrx-burger { display: flex; }
}
@media (max-width: 560px) {
  .isrx-grid--2, .isrx-grid--3, .isrx-grid--4 { grid-template-columns: 1fr; }
  .isrx-footer__cols { grid-template-columns: 1fr; }
}