/* =========================================================
   ROCKWALL HIP PRESERVATION INSTITUTE
   Single-file CSS system for the static microsite.
   Companion explanation: docs/CSS_ARCHITECTURE_FOR_AI.md
========================================================= */
/* ===========================
   Local Fonts
=========================== */

@font-face {
    font-family: "Inter";
    src: url("../fonts/inter/inter-v20-latin-regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Inter";
    src: url("../fonts/inter/inter-v20-latin-500.woff2") format("woff2");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Inter";
    src: url("../fonts/inter/inter-v20-latin-600.woff2") format("woff2");
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Inter";
    src: url("../fonts/inter/inter-v20-latin-700.woff2") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Inter";
    src: url("../fonts/inter/inter-v20-latin-800.woff2") format("woff2");
    font-weight: 800;
    font-style: normal;
    font-display: swap;
}

/* ---------- Sora ---------- */

@font-face {
    font-family: "Sora";
    src: url("../fonts/sora/sora-v17-latin-500.woff2") format("woff2");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Sora";
    src: url("../fonts/sora/sora-v17-latin-600.woff2") format("woff2");
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Sora";
    src: url("../fonts/sora/sora-v17-latin-700.woff2") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Sora";
    src: url("../fonts/sora/sora-v17-latin-800.woff2") format("woff2");
    font-weight: 800;
    font-style: normal;
    font-display: swap;
}
/* =========================================================
   01. DESIGN TOKENS
========================================================= */
:root {
  --color-midnight: #0b1220;
  --color-midnight-2: #111827;
  --color-white: #ffffff;
  --color-warm: #fafaf8;
  --color-ice: #f6fbff;
  --color-soft-blue: #eef7fc;
  --color-text: #1e293b;
  --color-muted: #64748b;
  --color-muted-2: #94a3b8;
  --color-blue: #2563eb;
  --color-blue-dark: #1d4ed8;
  --color-teal: #0d9488;
  --color-teal-soft: #e7fbf7;
  --color-amber: #f59e0b;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  --color-danger-soft: #fff7ed;

  --font-heading: "Sora", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1180px;
  --section-y: clamp(4.5rem, 8vw, 7.5rem);
  --header-offset: 1rem;

  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --radius-sm: 0.75rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  --radius-pill: 999px;

  --shadow-soft: 0 18px 55px rgba(15, 23, 42, 0.08);
  --shadow-card: 0 16px 40px rgba(15, 23, 42, 0.10);
  --shadow-deep: 0 28px 80px rgba(2, 6, 23, 0.18);
  --shadow-blue: 0 18px 40px rgba(37, 99, 235, 0.23);

  --ease: cubic-bezier(.2, .8, .2, 1);
  --duration: 260ms;
  --duration-slow: 560ms;

  --z-header: 50;
  --z-menu: 49;
  --z-sticky: 45;
}

/* =========================================================
   02. RESET & BASE
========================================================= */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 7rem;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

body.nav-open { overflow: hidden; }

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

a {
  color: inherit;
  text-decoration: none;
}

button, input {
  font: inherit;
}

button { cursor: pointer; }

p, h1, h2, h3, h4 { margin-top: 0; }

p { margin-bottom: 0; color: var(--color-muted); }

::selection {
  color: var(--color-white);
  background: var(--color-blue);
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 1000;
  transform: translateY(-150%);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--color-white);
  color: var(--color-midnight);
  box-shadow: var(--shadow-card);
  transition: transform var(--duration) var(--ease);
}

.skip-link:focus { transform: translateY(0); }

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

:focus-visible {
  outline: 3px solid rgba(37, 99, 235, .45);
  outline-offset: 3px;
}

/* =========================================================
   03. TYPOGRAPHY
========================================================= */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-text);
  letter-spacing: -0.04em;
  line-height: 1.04;
}

h1 {
  font-size: clamp(3.25rem, 8vw, 6.9rem);
  max-width: 10ch;
  margin-bottom: 1.4rem;
}

h2 {
  font-size: clamp(2.1rem, 4.8vw, 4.5rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  margin-bottom: 0.7rem;
}

.eyebrow,
.mini-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
  color: var(--color-blue);
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow::before,
.mini-label::before {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 0.35rem rgba(37, 99, 235, .09);
}

.eyebrow--light { color: #93c5fd; }

.section-heading {
  max-width: 760px;
  margin: 0 auto 3rem;
  text-align: center;
}

.section-heading p:not(.eyebrow) {
  max-width: 62ch;
  margin: 0 auto;
  font-size: 1.08rem;
}

/* =========================================================
   04. GLOBAL LAYOUT
========================================================= */
.container {
  width: min(calc(100% - 2rem), var(--container));
  margin-inline: auto;
}

.section {
  position: relative;
  padding: var(--section-y) 0;
}

.image-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-deep);
  background: var(--color-ice);
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 85% center;
}

.image-frame--soft {
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(226, 232, 240, .75);
}


.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid rgba(37, 99, 235, .18);
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.75rem;
  background: rgba(37, 99, 235, .07);
  color: var(--color-blue-dark);
  font-size: 0.82rem;
  font-weight: 800;
}

/* =========================================================
   05. COMPONENTS
========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3.15rem;
  padding: 0.9rem 1.35rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-weight: 800;
  line-height: 1;
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), background var(--duration) var(--ease), border-color var(--duration) var(--ease), color var(--duration) var(--ease);
}

.btn:not(:disabled):hover { transform: translateY(-2px); }

.btn:disabled {
  cursor: not-allowed;
  opacity: .58;
  box-shadow: none;
}

.btn--primary {
  color: var(--color-white);
  background: var(--color-blue);
  box-shadow: var(--shadow-blue);
}

.btn--primary:not(:disabled):hover { background: var(--color-blue-dark); }

.btn--secondary {
  color: var(--color-text);
  background: var(--color-white);
  border-color: var(--color-border);
  box-shadow: 0 10px 26px rgba(15, 23, 42, .06);
}

.btn--ghost {
  color: var(--color-text);
  border-color: rgba(30, 41, 59, .14);
  background: rgba(255, 255, 255, .72);
  backdrop-filter: blur(16px);
}

.btn--light {
  color: var(--color-midnight);
  background: var(--color-white);
  box-shadow: 0 14px 35px rgba(255, 255, 255, .12);
}

.btn--small {
  min-height: 2.6rem;
  padding: 0.72rem 1rem;
  font-size: 0.9rem;
}

.round-btn {
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid rgba(226, 232, 240, .88);
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-text);
  box-shadow: 0 10px 22px rgba(15, 23, 42, .08);
  transition: transform var(--duration) var(--ease), background var(--duration) var(--ease);
}

.round-btn:hover {
  transform: translateY(-2px);
  background: var(--color-ice);
}

.notice-card {
  display: grid;
  gap: 0.25rem;
  border: 1px solid rgba(245, 158, 11, .25);
  border-radius: var(--radius-lg);
  padding: 1.1rem;
  background: var(--color-danger-soft);
}

.notice-card strong { color: #9a4c00; }
.notice-card span { color: #7c4a1d; }

.progress {
  width: 10rem;
  height: 0.45rem;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background: rgba(37, 99, 235, .12);
}

.progress span {
  display: block;
  width: 33%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-blue), var(--color-teal));
  transition: width var(--duration-slow) var(--ease);
}

/* =========================================================
   06. HEADER & NAVIGATION
========================================================= */
.site-header {
  position: fixed;
  inset: var(--header-offset) 0 auto;
  z-index: var(--z-header);
  pointer-events: none;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 5rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: var(--radius-pill);
  background: rgba(11, 18, 32, .91);
  box-shadow: 0 24px 70px rgba(2, 6, 23, .22);
  backdrop-filter: blur(18px);
  pointer-events: auto;
  transition: min-height var(--duration) var(--ease), background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.site-header.is-scrolled .site-header__inner {
  min-height: 4.2rem;
  background: rgba(11, 18, 32, .97);
  box-shadow: 0 18px 55px rgba(2, 6, 23, .20);
}

.brand {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 0.75rem;
  color: var(--color-white);
}

.brand__logo {
  width: 4.15rem;
  height: 4.15rem;
  object-fit: contain;
  flex: 0 0 auto;
  transition: width var(--duration) var(--ease), height var(--duration) var(--ease);
}

.site-header.is-scrolled .brand__logo {
  width: 3.55rem;
  height: 3.55rem;
}

.brand__text {
  display: grid;
  min-width: 0;
  line-height: 1.08;
}

.brand__text strong {
  max-width: 19rem;
  overflow: hidden;
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: clamp(0.78rem, 1.2vw, 0.95rem);
  letter-spacing: -0.03em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand__text span {
  margin-top: 0.2rem;
  color: rgba(255, 255, 255, .62);
  font-size: 0.72rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  color: rgba(255,255,255,.72);
  font-size: 0.9rem;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  transition: color var(--duration) var(--ease);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.45rem;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration) var(--ease);
}

.site-nav a:hover,
.site-nav a.is-active { color: var(--color-white); }
.site-nav a.is-active::after { transform: scaleX(1); }

.site-nav__cta { display: none; }
.site-nav__cta::after { display: none; }

.nav-toggle {
  display: none;
  width: 2.7rem;
  height: 2.7rem;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 50%;
  background: rgba(255,255,255,.08);
}

.nav-toggle__line {
  display: block;
  width: 1.05rem;
  height: 2px;
  margin: 0.22rem auto;
  border-radius: var(--radius-pill);
  background: var(--color-white);
  transition: transform var(--duration) var(--ease), opacity var(--duration) var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* =========================================================
   07. PAGE SECTIONS
========================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding-top: 8.5rem;
  background:
    radial-gradient(circle at 20% 20%, rgba(37, 99, 235, .13), transparent 28rem),
    linear-gradient(135deg, var(--color-white) 0%, var(--color-ice) 52%, var(--color-warm) 100%);
  overflow: hidden;
}

/* Ultra-wide / 4K hero control: keep the opening section premium without becoming oversized on very tall displays. */
@media (min-width: 1800px) and (min-height: 1100px) {
  .hero {
    min-height: min(86svh, 980px);
    padding-top: 7.25rem;
  }

  .hero__grid {
    align-content: center;
  }

  .hero__lead {
    font-size: 1.18rem;
  }
}

.hero__orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(8px);
  opacity: .6;
  pointer-events: none;
}

.hero__orb--one {
  width: 22rem;
  height: 22rem;
  right: 4vw;
  top: 12vh;
  background: rgba(37, 99, 235, .10);
}

.hero__orb--two {
  width: 17rem;
  height: 17rem;
  left: 1vw;
  bottom: 8vh;
  background: rgba(13, 148, 136, .10);
}

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, .96fr) minmax(320px, .82fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}

.hero__lead {
  max-width: 42rem;
  margin-bottom: 2rem;
  font-size: clamp(1.05rem, 1.5vw, 1.28rem);
  color: #475569;
}

.hero__actions,
.doctor__actions,
.final-cta__actions,
.checker-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2rem;
}

.trust-row span {
  border: 1px solid rgba(30, 41, 59, .10);
  border-radius: var(--radius-pill);
  padding: 0.55rem 0.8rem;
  background: rgba(255,255,255,.65);
  color: #475569;
  font-weight: 800;
  font-size: 0.84rem;
}

.hero__media {
  position: relative;
}

.image-frame--hero {
  aspect-ratio: 1 / 1.12;
  transform: rotate(1.5deg);
}

.hero-card {
  position: absolute;
  display: grid;
  gap: 0.15rem;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 1.35rem;
  padding: 0.95rem 1rem;
  background: rgba(255,255,255,.82);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
}

.hero-card strong { color: var(--color-text); }
.hero-card span { color: var(--color-muted); font-size: 0.85rem; }
.hero-card .pill {
  width: fit-content;
  color: var(--color-blue-dark);
  font-size: 0.74rem;
}

.hero-card--rating {
  left: -1.3rem;
  bottom: 8%;
  max-width: 15rem;
}

.hero-card--location {
  right: -1.4rem;
  top: 12%;
  max-width: 13rem;
}

.intro-strip {
  padding: 2.2rem 0;
  background: var(--color-midnight);
}

.intro-strip__grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  gap: 2rem;
}

.intro-strip h2 {
  margin-bottom: 0;
  color: var(--color-white);
  font-size: clamp(1.65rem, 3vw, 3rem);
}

.intro-strip p {
  color: rgba(255,255,255,.72);
  font-size: 1.05rem;
}

.intro-strip .mini-label { color: #93c5fd; }

.too-young {
  background:
    radial-gradient(circle at 85% 12%, rgba(37, 99, 235, .08), transparent 24rem),
    var(--color-white);
}

.too-young__grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4.5rem);
}

.too-young__content > p:not(.eyebrow) {
  max-width: 58ch;
  margin-bottom: 1.6rem;
  font-size: 1.08rem;
}

.too-young__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
}

.too-young__cards {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.too-young-card {
  border: 1px solid rgba(226, 232, 240, .9);
  border-radius: var(--radius-xl);
  padding: 1.35rem;
  background: rgba(255, 255, 255, .88);
  box-shadow: var(--shadow-soft);
}

.too-young-card span {
  display: inline-flex;
  margin-bottom: 1rem;
  color: var(--color-blue);
  font-family: var(--font-heading);
  font-weight: 800;
}

.too-young-card h3 {
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
}

.too-young-card p {
  color: var(--color-muted);
}

.symptoms { background: var(--color-white); }

.symptom-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.symptom-card {
  min-height: 17rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.35rem;
  background: linear-gradient(180deg, #fff, #fbfdff);
  box-shadow: 0 10px 28px rgba(15, 23, 42, .05);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), border-color var(--duration) var(--ease);
}

.symptom-card:hover {
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, .25);
  box-shadow: var(--shadow-card);
}

.symptom-card__icon {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  margin-bottom: auto;
  border-radius: 50%;
  background: var(--color-ice);
  color: var(--color-blue);
  font-size: 1.4rem;
  font-weight: 800;
}

.checker-section {
  background:
    radial-gradient(circle at 78% 20%, rgba(13, 148, 136, .16), transparent 24rem),
    linear-gradient(180deg, var(--color-ice), var(--color-white));
}

.checker-layout {
  display: grid;
  grid-template-columns: .86fr 1.14fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}

.checker-copy p:not(.eyebrow) {
  margin-bottom: 1.5rem;
  font-size: 1.08rem;
}

.checker-card {
  min-height: 31rem;
  border: 1px solid rgba(226, 232, 240, .85);
  border-radius: 2rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  background: rgba(255,255,255,.86);
  box-shadow: var(--shadow-deep);
  backdrop-filter: blur(18px);
}

.checker-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.checker-step {
  display: none;
  animation: stepIn 360ms var(--ease);
}

.checker-step.is-active { display: block; }

.choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1.2rem;
}

.choice {
  min-height: 4.4rem;
  border: 1px solid var(--color-border);
  border-radius: 1.1rem;
  padding: 1rem;
  background: #fff;
  color: var(--color-text);
  font-weight: 800;
  text-align: left;
  transition: transform var(--duration) var(--ease), border-color var(--duration) var(--ease), background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.choice:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 99, 235, .35);
  box-shadow: 0 10px 24px rgba(15, 23, 42, .07);
}

.choice.is-selected {
  border-color: rgba(37, 99, 235, .72);
  background: rgba(37, 99, 235, .08);
  color: var(--color-blue-dark);
  box-shadow: 0 12px 28px rgba(37, 99, 235, .12);
}

.result-panel {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
  border: 1px solid rgba(13, 148, 136, .22);
  border-radius: 1.4rem;
  padding: 1.2rem;
  background: var(--color-teal-soft);
}

.result-panel ul {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding-left: 1.2rem;
  color: #115e59;
}

.result-panel strong { color: #0f766e; }

.checker-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.4rem;
}

.preservation { background: var(--color-warm); }

.preservation__grid,
.philosophy__grid,
.doctor__grid,
.evaluation-layout,
.faq__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
}

.preservation__media .image-frame { aspect-ratio: 4 / 3; }

.principle-list {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.principle-list div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.15rem 1rem;
  border-top: 1px solid rgba(30, 41, 59, .10);
  padding-top: 1rem;
}

.principle-list span {
  grid-row: span 2;
  color: var(--color-blue);
  font-family: var(--font-heading);
  font-weight: 800;
}

.principle-list strong { color: var(--color-text); }

.conditions { background: var(--color-white); }

.conditions__top {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  align-items: end;
  gap: 2rem;
  margin-bottom: 2.4rem;
}

.condition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.condition-card {
  position: relative;
  overflow: hidden;
  min-height: 18rem;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.45rem;
  background: #fff;
  box-shadow: 0 10px 24px rgba(15, 23, 42, .04);
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), border-color var(--duration) var(--ease);
}

.condition-card::before {
  content: "";
  position: absolute;
  inset: auto -2rem -2rem auto;
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  background: rgba(37, 99, 235, .06);
  pointer-events: none;
  transition: transform var(--duration-slow) var(--ease);
}

.condition-card > * {
  position: relative;
  z-index: 1;
}

.condition-card:hover {
  transform: translateY(-7px);
  border-color: rgba(37, 99, 235, .28);
  box-shadow: var(--shadow-card);
}

.condition-card:hover::before { transform: scale(1.4); }

.condition-card span {
  margin-bottom: 1rem;
  color: var(--color-blue);
  font-family: var(--font-heading);
  font-weight: 800;
}

.condition-card a {
  width: fit-content;
  margin-top: auto;
  padding-top: 1rem;
  color: var(--color-blue);
  font-weight: 800;
}

.condition-card a::after { content: " →"; }

.philosophy {
  overflow: hidden;
  background: var(--color-midnight);
}

.philosophy h2,
.philosophy h3 { color: var(--color-white); }
.philosophy p { color: rgba(255,255,255,.70); }

.journey {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
  margin-top: 2rem;
}

.journey div {
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 1.1rem;
  padding: 1rem;
  background: rgba(255,255,255,.06);
}

.journey span {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  margin-bottom: 1.2rem;
  border-radius: 50%;
  background: var(--color-blue);
  color: #fff;
  font-weight: 800;
}

.journey strong {
  display: block;
  color: var(--color-white);
}

.journey small { color: rgba(255,255,255,.56); }

.philosophy__media img {
  aspect-ratio: 4 / 5;
  width: 100%;
  object-fit: cover;
  border-radius: 2rem;
  box-shadow: var(--shadow-deep);
}

.evaluation-section {
  background:
    radial-gradient(circle at 15% 12%, rgba(37,99,235,.08), transparent 22rem),
    var(--color-ice);
}

.evaluation-content > p:not(.eyebrow) {
  margin-bottom: 1.6rem;
  font-size: 1.08rem;
}

.evaluation-steps {
  display: grid;
  gap: 0.85rem;
  margin: 2rem 0;
}

.evaluation-steps article {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  border: 1px solid rgba(226,232,240,.82);
  border-radius: 1.25rem;
  padding: 1rem;
  background: rgba(255,255,255,.86);
  box-shadow: 0 10px 28px rgba(15, 23, 42, .04);
}

.evaluation-steps span {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: var(--color-midnight);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 800;
}

.evaluation-steps h3 {
  margin-bottom: 0.25rem;
  font-size: clamp(1.05rem, 1.7vw, 1.28rem);
}

.evaluation-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
}

.visit-checklist {
  display: grid;
  gap: 0.75rem;
  margin: -0.35rem 0 1.6rem;
  border: 1px solid rgba(13, 148, 136, .20);
  border-radius: 1.25rem;
  padding: 1rem;
  background: rgba(231, 251, 247, .72);
}

.visit-checklist strong {
  color: var(--color-text);
}

.visit-checklist ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem 1rem;
  margin: 0;
  padding-left: 1.1rem;
  color: #115e59;
  font-weight: 700;
}

.evaluation-media {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(226,232,240,.78);
  border-radius: 2rem;
  background: rgba(255,255,255,.86);
  box-shadow: var(--shadow-soft);
}

.evaluation-media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.support-card {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 1.4rem;
  padding: 1rem;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(16px);
}

.support-card strong { color: var(--color-text); }
.support-card p { margin-top: 0.2rem; font-size: .92rem; }

.doctor { background: var(--color-white); }

.doctor__portrait {
  overflow: hidden;
  border-radius: 2.4rem;
  background: var(--color-ice);
  box-shadow: var(--shadow-deep);
}

.doctor__portrait img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.doctor__lead {
  margin-bottom: 1rem;
  color: var(--color-text);
  font-size: 1.22rem;
  font-weight: 800;
}

.credential-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 2rem 0;
}

.credential-grid div {
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: 1rem;
  background: var(--color-ice);
}

.credential-grid strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--color-text);
}

.credential-grid span {
  color: var(--color-muted);
  font-size: 0.88rem;
}

.review-experience {
  background:
    radial-gradient(circle at 10% 20%, rgba(37, 99, 235, .10), transparent 26rem),
    radial-gradient(circle at 92% 18%, rgba(13, 148, 136, .10), transparent 23rem),
    var(--color-ice);
}

.reviews-shell {
  display: grid;
  grid-template-columns: .88fr 1.12fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  margin-bottom: 2rem;
}

.rating-block {
  display: grid;
  width: fit-content;
  gap: 0.2rem;
  margin: 1.5rem 0;
  border: 1px solid rgba(226,232,240,.85);
  border-radius: 1.2rem;
  padding: 1rem;
  background: rgba(255,255,255,.76);
}

.rating-block strong { color: var(--color-text); }
.rating-block small { color: var(--color-muted); }
.rating-block code { color: var(--color-blue); }
.rating-block .pill {
  width: fit-content;
  font-size: 0.74rem;
}

.review-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
}

.review-filter {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 0.6rem 0.85rem;
  background: rgba(255,255,255,.82);
  color: var(--color-muted);
  font-weight: 800;
  transition: color var(--duration) var(--ease), background var(--duration) var(--ease), border-color var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.review-filter:hover { transform: translateY(-2px); }
.review-filter.is-active {
  border-color: rgba(37,99,235,.5);
  background: var(--color-blue);
  color: #fff;
}

.featured-review {
  position: relative;
  min-height: 25rem;
}

.featured-review__stack::before,
.featured-review__stack::after {
  content: "";
  position: absolute;
  inset: 2rem 1rem auto auto;
  width: 78%;
  height: 18rem;
  border-radius: 2rem;
  background: rgba(255,255,255,.58);
  border: 1px solid rgba(255,255,255,.9);
  transform: rotate(4deg);
  box-shadow: var(--shadow-soft);
}

.featured-review__stack::after {
  inset: 3.2rem auto auto 1.2rem;
  transform: rotate(-5deg);
  background: rgba(255,255,255,.42);
}

.featured-review__card,
.review-card {
  border: 1px solid rgba(226,232,240,.85);
  border-radius: 2rem;
  background: rgba(255,255,255,.92);
  box-shadow: var(--shadow-card);
}

.featured-review__card {
  position: relative;
  z-index: 1;
  min-height: 22rem;
  display: grid;
  align-content: center;
  padding: clamp(1.4rem, 4vw, 2.5rem);
  overflow: hidden;
}

.featured-review__card::before {
  content: "“";
  position: absolute;
  right: 1.6rem;
  top: -1.1rem;
  color: rgba(37, 99, 235, .08);
  font-family: Georgia, serif;
  font-size: 10rem;
  line-height: 1;
}

.review-text {
  position: relative;
  z-index: 1;
  margin: 1rem 0 1.3rem;
  color: var(--color-text);
  font-size: clamp(1.12rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.45;
}

.review-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.review-avatar {
  display: grid;
  place-items: center;
  width: 2.7rem;
  height: 2.7rem;
  border-radius: 50%;
  background: var(--color-midnight);
  color: #fff;
  font-weight: 900;
}

.review-meta strong { display: block; color: var(--color-text); }
.review-meta small { color: var(--color-muted); }

.review-tag {
  width: fit-content;
  margin-bottom: 1rem;
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.65rem;
  background: var(--color-teal-soft);
  color: #0f766e;
  font-size: 0.78rem;
  font-weight: 900;
}

.review-controls {
  position: absolute;
  z-index: 2;
  right: 1.3rem;
  bottom: 1.3rem;
  display: flex;
  gap: 0.6rem;
}

.review-wall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.review-card {
  padding: 1.25rem;
  transition: transform var(--duration) var(--ease), box-shadow var(--duration) var(--ease), opacity var(--duration) var(--ease);
}

.review-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-deep);
}

.review-card p {
  margin: 0.75rem 0 1rem;
  color: #334155;
}

.review-card__more {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--color-blue);
  font-weight: 800;
}

.faq { background: var(--color-white); }
.faq__grid { align-items: start; }
.faq__intro { position: sticky; top: 8rem; }

.accordion {
  display: grid;
  gap: 0.75rem;
}

.accordion__item {
  border: 1px solid var(--color-border);
  border-radius: 1.2rem;
  background: #fff;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(15, 23, 42, .04);
}

.accordion__item button {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border: 0;
  padding: 1.15rem;
  background: #fff;
  color: var(--color-text);
  font-weight: 900;
  text-align: left;
}

.accordion__item button::after {
  content: "+";
  display: grid;
  place-items: center;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  background: var(--color-ice);
  color: var(--color-blue);
  flex: 0 0 auto;
}

.accordion__item button[aria-expanded="true"]::after { content: "−"; }

.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration) var(--ease);
}

.accordion__item.is-open .accordion__panel { grid-template-rows: 1fr; }

.accordion__panel p {
  overflow: hidden;
  padding: 0 1.15rem;
}

.accordion__item.is-open .accordion__panel p { padding-bottom: 1.15rem; }

.locations {
  background:
    linear-gradient(180deg, var(--color-warm), var(--color-white));
}

.location-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.location-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(226,232,240,.85);
  border-radius: var(--radius-xl);
  padding: 1.45rem;
  background: rgba(255,255,255,.88);
  box-shadow: var(--shadow-soft);
}

.location-card::after {
  content: "";
  position: absolute;
  inset: -30% auto auto 55%;
  width: 15rem;
  height: 15rem;
  border-radius: 50%;
  background: rgba(37, 99, 235, .06);
  pointer-events: none;
}

.location-card > * {
  position: relative;
  z-index: 1;
}

.location-card__pin {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: 1.2rem;
  border-radius: 50%;
  background: var(--color-midnight);
  color: #fff;
  font-size: 1.2rem;
}

.location-card a {
  display: inline-flex;
  margin-top: 1rem;
  color: var(--color-blue);
  font-weight: 900;
}

.location-card a::after { content: " →"; }

.final-cta {
  padding: clamp(4rem, 7vw, 6rem) 0;
  color: #fff;
  background:
    radial-gradient(circle at 80% 10%, rgba(37, 99, 235, .30), transparent 26rem),
    var(--color-midnight);
}

.final-cta__grid {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem;
}

.final-cta h2 {
  max-width: 18ch;
  color: #fff;
}

.final-cta p { max-width: 48rem; color: rgba(255,255,255,.74); }

.final-cta__actions {
  justify-content: flex-end;
}

.phone-link {
  color: rgba(255,255,255,.84);
  font-weight: 900;
}

.site-footer {
  padding: clamp(3.2rem, 6vw, 5rem) 0 2rem;
  background: #060a12;
  color: rgba(255,255,255,.74);
  text-align: center;
}

.site-footer__inner {
  display: grid;
  justify-items: center;
  gap: 1.45rem;
  max-width: 76rem;
}

.footer-social {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.footer-social a {
  display: grid;
  place-items: center;
  width: 2.85rem;
  height: 2.85rem;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.88);
  transition: transform var(--duration) var(--ease), background var(--duration) var(--ease), color var(--duration) var(--ease);
}

.footer-social a:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,.12);
  color: #fff;
}

.footer-social svg {
  width: 1.12rem;
  height: 1.12rem;
  fill: currentColor;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.72rem 1.05rem;
  width: min(100%, 72rem);
  border-block: 1px solid rgba(255,255,255,.12);
  padding: 1.25rem 0;
}

.footer-links a {
  color: rgba(255,255,255,.72);
  font-size: 0.94rem;
  font-weight: 700;
  white-space: nowrap;
  transition: color var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.footer-links a:hover {
  color: #fff;
  transform: translateY(-1px);
}

.footer-legal {
  display: grid;
  justify-items: center;
  gap: 0.28rem;
}

.footer-legal p {
  max-width: 60ch;
  color: rgba(255,255,255,.68);
  font-size: .9rem;
}

.footer-ypo {
  display: inline-flex;
  justify-content: center;
  opacity: .88;
  transition: opacity var(--duration) var(--ease);
}

.footer-ypo:hover { opacity: 1; }
.footer-ypo img { width: 166px; height: 39px; object-fit: contain; }

.mobile-sticky-cta {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: var(--z-sticky);
  display: none;
  border-radius: var(--radius-pill);
  padding: 0.95rem 1rem;
  background: var(--color-blue);
  color: #fff;
  box-shadow: var(--shadow-blue);
  font-weight: 900;
  text-align: center;
}

/* =========================================================
   08. INTERACTIONS & STATES
========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--duration-slow) var(--ease), transform var(--duration-slow) var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes stepIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.review-fade-in {
  animation: stepIn 360ms var(--ease);
}

/* =========================================================
   09. RESPONSIVE RULES
========================================================= */
@media (max-width: 1140px) {
  .site-nav,
  .header-cta { display: none; }
  .nav-toggle { display: inline-block; }

  .site-nav {
    position: fixed;
    z-index: var(--z-menu);
    top: 6.2rem;
    left: 1rem;
    right: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 1.5rem;
    padding: 0.7rem;
    background: rgba(11, 18, 32, .98);
    box-shadow: var(--shadow-deep);
    max-height: calc(100svh - 7.5rem);
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .site-nav.is-open { display: flex; }

  .site-nav a {
    padding: 0.9rem 1rem;
    border-radius: 1rem;
  }

  .site-nav a:hover,
  .site-nav a.is-active { background: rgba(255,255,255,.08); }
  .site-nav a::after { display: none; }
  .site-nav__cta {
    display: block;
    margin-top: 0.45rem;
    background: var(--color-blue);
    color: #fff;
    text-align: center;
    box-shadow: var(--shadow-blue);
  }
}

@media (max-width: 980px) {
  :root { --section-y: clamp(4rem, 7vw, 5.5rem); }

  .hero__grid,
  .checker-layout,
  .preservation__grid,
  .philosophy__grid,
  .doctor__grid,
  .evaluation-layout,
  .too-young__grid,
  .reviews-shell,
  .faq__grid,
  .intro-strip__grid,
  .final-cta__grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 8rem;
  }

  .hero h1 { max-width: 11ch; }
  .hero__media { max-width: 620px; margin: 0 auto; }

  .preservation__media,
  .philosophy__media,
  .evaluation-media {
    width: min(100%, 560px);
    margin-inline: auto;
  }

  .doctor__portrait {
    width: min(100%, 520px);
    margin-inline: auto;
  }

  .symptom-grid,
  .condition-grid,
  .location-grid,
  .review-wall {
    grid-template-columns: repeat(2, 1fr);
  }

  .conditions__top { grid-template-columns: 1fr; }
  .faq__intro { position: static; }
  .final-cta__actions { justify-content: flex-start; }
}


@media (min-width: 721px) and (max-width: 980px) {
  .philosophy__media img,
  .evaluation-media img {
    aspect-ratio: 4 / 3;
  }

  .doctor__portrait img {
    aspect-ratio: 4 / 5;
    object-position: center top;
  }

  .support-card {
    left: 0.85rem;
    right: 0.85rem;
    bottom: 0.85rem;
  }
}

@media (max-width: 720px) {
  html { scroll-padding-top: 6rem; }
  .container { width: min(calc(100% - 1.25rem), var(--container)); }

  .site-header { inset: .6rem 0 auto; }
  .site-header__inner {
    min-height: 4.2rem;
    border-radius: 1.4rem;
    padding: .55rem .6rem;
  }

  .brand__logo,
  .site-header.is-scrolled .brand__logo { width: 3rem; height: 3rem; }
  .brand__text strong { max-width: 11.5rem; }
  .brand__text span { display: none; }

  h1 { font-size: clamp(3rem, 15vw, 4.8rem); }
  h2 { font-size: clamp(2rem, 11vw, 3.2rem); }

  .hero { padding-top: 7.2rem; }
  .hero__actions,
  .too-young__actions,
  .doctor__actions,
  .checker-actions,
  .evaluation-actions,
  .final-cta__actions { align-items: stretch; justify-content: center; }
  .hero__actions .btn,
  .too-young__actions .btn,
  .doctor__actions .btn,
  .checker-actions .btn,
  .evaluation-actions .btn,
  .final-cta__actions .btn { width: 100%; }

  .trust-row span { width: 100%; text-align: center; }
  .hero-card { position: static; margin-top: .75rem; }
  .image-frame--hero { transform: none; }

  .symptom-grid,
  .condition-grid,
  .location-grid,
  .review-wall,
  .credential-grid,
  .journey,
  .choice-grid,
  .visit-checklist ul {
    grid-template-columns: 1fr;
  }

  .symptom-card { min-height: 14rem; }
  .checker-card__top { align-items: flex-start; flex-direction: column; }
  .progress { width: 100%; }
  .checker-nav { flex-direction: column-reverse; }
  .checker-nav .btn { width: 100%; }
  .review-filters { width: 100%; }
  .review-filter { flex: 1 1 calc(50% - 0.55rem); text-align: center; }
  .review-controls { position: static; margin-top: 1rem; }
  .evaluation-media .support-card { position: static; margin: 1rem; }
  .phone-link { display: inline-flex; justify-content: center; padding: 0.8rem 1rem; }
  .site-footer { padding-bottom: calc(5.75rem + env(safe-area-inset-bottom)); }
  .footer-links {
    display: grid;
    justify-items: center;
    gap: 0.68rem;
    width: min(100%, 38rem);
  }
  .footer-links a { white-space: normal; }
  .mobile-sticky-cta { display: block; }
}

@media (max-width: 380px) {
  .brand__text strong { max-width: 9.4rem; font-size: .74rem; }
  .nav-toggle { width: 2.45rem; height: 2.45rem; }
}

/* =========================================================
   10. ACCESSIBILITY / REDUCED MOTION
========================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}