/* ==========================================================================
   Lumina Dermatology — Component Library
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Buttons — luxury pill, soft elevation, elegant hover
   -------------------------------------------------------------------------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: 1.05rem 2.25rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  cursor: pointer;
  transition: transform var(--dur-base) var(--ease-out-expo),
              box-shadow var(--dur-base) var(--ease-out-expo),
              background-color var(--dur-base) var(--ease-out-expo),
              color var(--dur-base) var(--ease-out-expo),
              border-color var(--dur-base) var(--ease-out-expo);
}
.btn:active { transform: translateY(1px) scale(0.99); }

.btn--primary {
  background: var(--color-clay);
  color: var(--color-ink-invert);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
  background: var(--color-clay-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-border-strong);
}
.btn--ghost:hover {
  border-color: var(--color-clay);
  color: var(--color-clay);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn--invert {
  background: var(--color-ink-invert);
  color: var(--color-ink);
}
.btn--invert:hover {
  background: var(--color-clay);
  color: var(--color-ink-invert);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--sm { padding: 0.8rem 1.5rem; font-size: 0.875rem; }

.btn--text {
  padding: 0;
  border-radius: 0;
  font-weight: 600;
  color: var(--color-clay);
  gap: var(--space-2);
}
.btn--text .btn__arrow { transition: transform var(--dur-base) var(--ease-out-expo); }
.btn--text:hover .btn__arrow { transform: translateX(5px); }
.btn--text::after {
  content: '';
  position: absolute;
  left: 0; right: 100%; bottom: -3px;
  height: 1px;
  background: currentColor;
  transition: right var(--dur-base) var(--ease-out-expo);
}
.btn--text:hover::after { right: 0; }

/* --------------------------------------------------------------------------
   2. Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-header);
  padding-block: var(--space-6);
  transition: padding var(--dur-base) var(--ease-out-expo),
              background-color var(--dur-base) var(--ease-out-expo),
              box-shadow var(--dur-base) var(--ease-out-expo),
              backdrop-filter var(--dur-base) var(--ease-out-expo);
}
.site-header.is-scrolled,
.site-header--solid {
  padding-block: var(--space-4);
  background: rgba(251, 248, 243, 0.82);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 1px 0 var(--color-border), var(--shadow-sm);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.brand {
  font-family: var(--font-display);
  font-size: 1.625rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: baseline;
  gap: 0.35em;
  line-height: 1;
  white-space: nowrap;
}
.brand span { color: var(--color-clay); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-7);
}
.nav-links a {
  position: relative;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  transition: color var(--dur-fast) var(--ease-out-expo);
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; right: 100%; bottom: -6px;
  height: 1px;
  background: var(--color-clay);
  transition: right var(--dur-base) var(--ease-out-expo);
}
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--color-ink); }
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { right: 0; }

.nav-actions { display: flex; align-items: center; gap: var(--space-5); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  border-radius: var(--radius-pill);
}
.nav-toggle svg { width: 22px; height: 22px; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-actions .btn--primary { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* Mobile menu overlay */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: var(--color-surface-ink);
  color: var(--color-ink-invert);
  display: flex;
  flex-direction: column;
  padding: var(--space-6) var(--gutter) var(--space-8);
  overflow-y: auto;
  transform: translateY(-100%);
  transition: transform var(--dur-slow) var(--ease-out-expo);
}
.mobile-menu.is-open { transform: translateY(0); }
.mobile-menu__top { display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); min-height: 44px; }
.mobile-menu__top .brand { color: var(--color-ink-invert); font-size: 1.5rem; }
.mobile-menu__close { width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; color: var(--color-ink-invert); }
.mobile-menu nav {
  margin-top: var(--space-9);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.mobile-menu nav a {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: 500;
  color: var(--color-ink-invert);
  opacity: 0.9;
}
.mobile-menu nav a:hover { color: var(--color-clay); opacity: 1; }
.mobile-menu__footer {
  margin-top: auto;
  padding-top: var(--space-7);
  border-top: 1px solid var(--color-border-invert);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  color: var(--color-ink-invert-soft);
}

/* --------------------------------------------------------------------------
   3. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-start;
  padding-top: 6.5rem;
  padding-bottom: var(--space-8);
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  z-index: -1;
  background: linear-gradient(165deg, #F6F5F0 0%, #F3F2EE 45%, #E7E4DA 100%);
}
.hero__bg::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(48% 60% at 82% 18%, rgba(94,122,107,0.16), transparent 70%),
    radial-gradient(40% 45% at 12% 85%, rgba(180,105,63,0.14), transparent 70%);
}
.hero__grain { position: absolute; inset: 0; opacity: 0.5; mix-blend-mode: overlay; pointer-events: none; }

.hero__row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-6);
  align-items: end;
  width: 100%;
}
.hero__copy { grid-column: 1 / span 7; }
.hero__aside { grid-column: 9 / span 4; position: relative; }

.hero__portrait {
  width: 100%;
  aspect-ratio: 4 / 5;
  max-height: 62svh;
  box-shadow: var(--shadow-xl);
}
.hero__portrait img { object-position: center 20%; }

.hero__eyebrow { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-5); }
.hero__eyebrow .hairline-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-clay); }

.hero h1 { max-width: 15ch; }
.hero__lead { margin-top: var(--space-6); max-width: 42ch; }
.hero__actions { margin-top: var(--space-8); display: flex; align-items: center; gap: var(--space-6); flex-wrap: wrap; }

.hero__stat-card {
  position: absolute;
  left: calc(var(--space-6) * -1);
  bottom: calc(var(--space-6) * -1);
  max-width: 240px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
}
.hero__stat-card .num { font-family: var(--font-display); font-size: var(--fs-h1); color: var(--color-clay); line-height: 1; }
.hero__stat-card .label { margin-top: var(--space-3); font-size: var(--fs-small); color: var(--color-ink-soft); }

.hero__scroll-cue {
  position: absolute;
  bottom: var(--space-6); left: var(--gutter);
  display: flex; align-items: center; gap: var(--space-3);
  font-size: var(--fs-eyebrow); letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--color-ink-soft);
}
.hero__scroll-cue .line { width: 40px; height: 1px; background: var(--color-ink-soft); position: relative; overflow: hidden; }
.hero__scroll-cue .line::after {
  content: ''; position: absolute; inset: 0; background: var(--color-clay);
  transform: translateX(-100%);
  animation: scrollLine 2.2s var(--ease-out-expo) infinite;
}
@keyframes scrollLine { to { transform: translateX(100%); } }

@media (max-width: 1024px) {
  .hero__copy { grid-column: 1 / -1; }
  .hero__aside { grid-column: 1 / -1; margin-top: var(--space-9); max-width: 420px; }
}
@media (max-width: 640px) {
  .hero { align-items: flex-start; padding-top: calc(var(--space-10) + var(--space-6)); }
  .hero__aside { max-width: none; }
  .hero__stat-card { position: static; margin-top: var(--space-5); left: auto; bottom: auto; max-width: none; }
  .hero__scroll-cue { display: none; }
}

/* --------------------------------------------------------------------------
   4. Section titles (eyebrow + heading pattern lives in utilities.css .section-head)
   -------------------------------------------------------------------------- */
.kicker-rule { display: inline-flex; align-items: center; gap: var(--space-3); }
.kicker-rule::before { content: ''; width: 28px; height: 1px; background: var(--color-clay); }

/* --------------------------------------------------------------------------
   5. Cards — editorial white, soft layered shadow (glass only on dark hero overlays)
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--dur-base) var(--ease-out-expo),
              transform var(--dur-base) var(--ease-out-expo);
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }

/* Treatment card */
.treatment-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.treatment-card .media { border-radius: 0; }
.treatment-card__body { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-4); flex: 1; }
.treatment-card__meta { display: flex; align-items: center; justify-content: space-between; }
.treatment-card__meta .type-eyebrow { color: var(--color-sage); }
.treatment-card__foot {
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between;
}
.treatment-card__from { font-family: var(--font-display); font-size: 1.125rem; color: var(--color-ink); }
.treatment-card__from small { font-family: var(--font-body); font-size: 0.8125rem; color: var(--color-ink-faint); font-weight: 400; }

/* Doctor / physician card */
.doctor-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.doctor-card__body { padding: var(--space-6); }
.doctor-card__name { font-size: var(--fs-h3); }
.doctor-card__role { margin-top: var(--space-2); color: var(--color-clay); font-weight: 600; font-size: var(--fs-small); }
.doctor-card__bio { margin-top: var(--space-4); color: var(--color-ink-soft); }
.doctor-card__creds {
  margin-top: var(--space-5);
  display: flex; flex-wrap: wrap; gap: var(--space-2);
}
.pill-tag {
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  color: var(--color-ink-soft);
}

/* Stat block */
.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-invert);
}
.stat .num {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 1.8rem + 1.8vw, 3.25rem);
  color: var(--color-clay);
  line-height: 1;
}
.stat .label { color: var(--color-ink-invert-soft); font-size: var(--fs-small); }
.stats-row .stat { border-top-color: var(--color-border); }
.stats-row .label { color: var(--color-ink-soft); }

/* Testimonial */
.testimonial {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}
.testimonial blockquote {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-ink);
}
.testimonial__attr {
  margin-top: var(--space-6);
  display: flex; align-items: center; gap: var(--space-4);
}
.testimonial__avatar {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(155deg, var(--color-clay-light), var(--color-sage-light));
  flex-shrink: 0;
}
.testimonial__name { font-weight: 600; }
.testimonial__role { color: var(--color-ink-faint); font-size: var(--fs-small); }

/* Process / method step */
.step {
  display: flex;
  gap: var(--space-5);
  padding-block: var(--space-6);
  border-top: 1px solid var(--color-border);
}
.step:last-child { border-bottom: 1px solid var(--color-border); }
.step__index {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  color: var(--color-clay-light);
  -webkit-text-stroke: 1.5px var(--color-clay);
  color: transparent;
  flex-shrink: 0;
  width: 2ch;
}
.step__body h3 { margin-bottom: var(--space-3); }
.step__body p { color: var(--color-ink-soft); max-width: 56ch; }

/* Values grid item (about page) */
.value-item { display: flex; flex-direction: column; gap: var(--space-4); }
.value-item__icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-clay-light);
  color: var(--color-clay-dark);
}
.value-item__icon svg { width: 26px; height: 26px; }

/* --------------------------------------------------------------------------
   6. Forms — floating label, luxury border, animated focus
   -------------------------------------------------------------------------- */
.field {
  position: relative;
  margin-bottom: var(--space-5);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 1.5rem 1.25rem 0.65rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  color: var(--color-ink);
  transition: border-color var(--dur-fast) var(--ease-out-expo), box-shadow var(--dur-fast) var(--ease-out-expo);
}
.field textarea { min-height: 132px; resize: vertical; padding-top: 1.6rem; }
.field label {
  position: absolute;
  left: 1.25rem; top: 1.15rem;
  color: var(--color-ink-faint);
  font-size: 1rem;
  pointer-events: none;
  transform-origin: left top;
  transition: transform var(--dur-fast) var(--ease-out-expo), color var(--dur-fast) var(--ease-out-expo), top var(--dur-fast) var(--ease-out-expo);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-clay);
  box-shadow: 0 0 0 4px var(--color-clay-light);
}
.field input:focus + label,
.field input:not([type="date"]):not(:placeholder-shown) + label,
.field textarea:focus + label,
.field textarea:not(:placeholder-shown) + label,
.field.is-filled label,
.field select:focus ~ label,
.field select.is-filled ~ label {
  top: 0.55rem;
  transform: scale(0.78);
  color: var(--color-clay);
}
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235C564C' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1.1rem center; }
.field__hint { margin-top: var(--space-2); font-size: 0.8125rem; color: var(--color-ink-faint); }
.field__error { margin-top: var(--space-2); font-size: 0.8125rem; color: var(--color-error); display: none; }
.field.has-error input,
.field.has-error select,
.field.has-error textarea { border-color: var(--color-error); }
.field.has-error .field__error { display: block; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--space-5); }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

.form-status {
  margin-top: var(--space-5);
  padding: var(--space-5);
  border-radius: var(--radius-sm);
  background: var(--color-sage-light);
  color: var(--color-sage);
  font-size: var(--fs-small);
  display: none;
}
.form-status.is-visible { display: block; }
.form-status.is-error { background: #F6E4E0; color: var(--color-error); }

/* Location / contact info card */
.info-card {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: var(--space-5);
}
.info-card__icon {
  width: 48px; height: 48px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-sage-light);
  color: var(--color-sage);
}
.info-card__icon svg { width: 22px; height: 22px; }
.info-card h3 { font-size: 1.0625rem; margin-bottom: var(--space-2); }
.info-card p { color: var(--color-ink-soft); font-size: var(--fs-small); }

.map-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/10;
  background: var(--color-surface-sunken);
  position: relative;
  box-shadow: var(--shadow-sm);
}
.map-frame img { width: 100%; height: 100%; object-fit: cover; }

/* --------------------------------------------------------------------------
   7. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-surface-ink);
  color: var(--color-ink-invert-soft);
  padding-block: var(--space-9) var(--space-6);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-7);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border-invert);
}
.footer-grid .brand { color: var(--color-ink-invert); margin-bottom: var(--space-4); }
.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-ink-invert);
  margin-bottom: var(--space-5);
  font-weight: 600;
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a { transition: color var(--dur-fast) var(--ease-out-expo); }
.footer-col a:hover { color: var(--color-clay); }
.footer-bottom {
  padding-top: var(--space-6);
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.8125rem;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.social-row { display: flex; gap: var(--space-4); }
.social-row a {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--color-border-invert);
  transition: border-color var(--dur-fast) var(--ease-out-expo), color var(--dur-fast) var(--ease-out-expo);
}
.social-row a:hover { border-color: var(--color-clay); color: var(--color-clay); }
.social-row svg { width: 17px; height: 17px; }

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* --------------------------------------------------------------------------
   9. CTA banner
   -------------------------------------------------------------------------- */
.cta-banner {
  position: relative;
  border-radius: var(--radius-xl);
  padding: var(--space-9) var(--space-8);
  background:
    linear-gradient(rgba(34, 36, 30, 0.82), rgba(34, 36, 30, 0.9)),
    url("../images/Book%20Appointment%20background.png") center / cover no-repeat;
  color: var(--color-ink-invert);
  overflow: hidden;
  text-align: center;
}
.cta-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(60% 80% at 50% 0%, rgba(94,122,107,0.32), transparent 70%);
}
.cta-banner > * { position: relative; }
.cta-banner h2 { max-width: 20ch; margin-inline: auto; }
.cta-banner .type-lead { margin-top: var(--space-5); max-width: 52ch; margin-inline: auto; }
.cta-banner__actions { margin-top: var(--space-7); display: flex; justify-content: center; gap: var(--space-5); flex-wrap: wrap; }

@media (max-width: 640px) {
  .cta-banner { padding: var(--space-8) var(--space-5); }
}

/* --------------------------------------------------------------------------
   10. Page header (interior pages)
   -------------------------------------------------------------------------- */
.page-header {
  padding-top: calc(var(--space-11) + var(--space-6));
  padding-bottom: var(--space-8);
}
.page-header .type-display { max-width: 16ch; }
.page-header--photo {
  padding-bottom: var(--space-10);
  background:
    linear-gradient(180deg, rgba(34, 36, 30, 0.6), rgba(34, 36, 30, 0.88)),
    url("../images/Contact%20Section%20Background.png") center 30% / cover no-repeat;
}
.breadcrumb { display: flex; align-items: center; gap: var(--space-2); color: var(--color-ink-faint); font-size: var(--fs-small); margin-bottom: var(--space-5); }
.breadcrumb a:hover { color: var(--color-clay); }
.breadcrumb--invert, .breadcrumb--invert a { color: var(--color-ink-invert-soft); }
.breadcrumb--invert a:hover { color: var(--color-gold); }

/* --------------------------------------------------------------------------
   11. Filter tabs (treatments)
   -------------------------------------------------------------------------- */
.filter-tabs { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.filter-tab {
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  transition: all var(--dur-fast) var(--ease-out-expo);
}
.filter-tab:hover { border-color: var(--color-clay); color: var(--color-clay); }
.filter-tab.is-active { background: var(--color-ink); border-color: var(--color-ink); color: var(--color-ink-invert); }