/* ============================================
   KDM DERMA THERAPY · COMPONENTS
   Reusable UI primitives
   ============================================ */

/* ═══════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════ */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-sm) var(--gutter);
  background: rgba(251, 246, 240, 0.7);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--duration-normal) var(--ease-out-quart);
}

.site-nav.is-scrolled {
  background: rgba(251, 246, 240, 0.92);
  border-bottom-color: var(--color-line);
  padding-block: var(--space-2xs);
  box-shadow: var(--shadow-sm);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-wide);
  margin: 0 auto;
}

.site-nav__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  text-decoration: none;
  position: relative;
  flex-shrink: 0;
  line-height: 1;
}

.site-nav__brand-mark {
  font-family: var(--font-display);
  font-size: var(--type-xl);
  font-weight: var(--weight-regular);
  letter-spacing: -0.01em;
  color: var(--color-ink);
  line-height: 1;
  white-space: nowrap;
}

.site-nav__brand-mark em {
  font-style: italic;
  color: var(--color-primary);
}

.site-nav__brand-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-ink-soft);
  display: none;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .site-nav__brand-tag {
    display: inline-block;
  }
}

.site-nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.site-nav__link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-ink-muted);
  position: relative;
  padding: var(--space-2xs) 0;
  transition: color var(--duration-fast) var(--ease-out-quart);
}

.site-nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--duration-normal) var(--ease-out-quart);
}

.site-nav__link:hover {
  color: var(--color-ink);
}

.site-nav__link:hover::after,
.site-nav__link.is-active::after {
  width: 100%;
}

.site-nav__link.is-active {
  color: var(--color-ink);
}

.site-nav__cta {
  margin-left: var(--space-sm);
}

@media (max-width: 900px) {
  .site-nav__menu .site-nav__link {
    display: none;
  }
  .site-nav__menu .site-nav__cta {
    display: inline-flex;
  }
  .nav-toggle {
    display: inline-flex;
  }
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-pill);
}

.nav-toggle__line {
  display: block;
  width: 18px;
  height: 1px;
  background: var(--color-ink);
  transition: all var(--duration-normal) var(--ease-out-quart);
}

.nav-toggle__line + .nav-toggle__line {
  margin-top: 5px;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: var(--color-bg-deep);
  color: var(--clay-50);
  padding: var(--space-xl) var(--gutter);
  transform: translateY(-100%);
  transition: transform var(--duration-slow) var(--ease-out-expo);
  overflow-y: auto;
}

.mobile-menu.is-open {
  transform: translateY(0);
}

.mobile-menu__close {
  position: absolute;
  top: var(--space-md);
  right: var(--gutter);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-pill);
  color: var(--clay-50);
}

.mobile-menu__links {
  margin-top: var(--space-4xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 4rem);
  font-weight: var(--weight-light);
  letter-spacing: -0.02em;
  color: var(--clay-50);
}

.mobile-menu__link em {
  font-style: italic;
  color: var(--gold-300);
}


/* ═══════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-mono);
  font-size: var(--type-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out-quart);
  white-space: nowrap;
  isolation: isolate;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-out-quart);
  z-index: -1;
}

.btn:hover::before {
  opacity: 0.08;
}

/* Primary - filled clay */
.btn--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: 0 4px 12px rgba(107, 65, 36, 0.25);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(107, 65, 36, 0.35);
}

.btn--primary:active {
  transform: translateY(0);
}

/* Secondary - outlined */
.btn--secondary {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-ink);
}

.btn--secondary:hover {
  background: var(--color-ink);
  color: var(--clay-50);
}

/* Ghost - subtle */
.btn--ghost {
  background: transparent;
  color: var(--color-ink-muted);
  border: 1px solid var(--color-line-strong);
}

.btn--ghost:hover {
  border-color: var(--color-ink);
  color: var(--color-ink);
}

/* Accent gold */
.btn--accent {
  background: var(--color-accent);
  color: var(--color-on-accent);
  box-shadow: 0 4px 12px rgba(201, 163, 56, 0.3);
}

.btn--accent:hover {
  background: var(--color-accent-deep);
  color: var(--clay-50);
  transform: translateY(-1px);
}

/* Dark surface variant */
.btn--on-dark {
  background: var(--clay-50);
  color: var(--ink-800);
}

.btn--on-dark:hover {
  background: var(--gold-300);
  color: var(--ink-900);
}

/* Sizes */
.btn--sm {
  padding: var(--space-2xs) var(--space-md);
  font-size: var(--type-xs);
}

.btn--lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--type-base);
}

.btn--xl {
  padding: var(--space-md) var(--space-2xl);
  font-size: var(--type-md);
}

/* Icon arrow inside button */
.btn__arrow {
  display: inline-block;
  transition: transform var(--duration-normal) var(--ease-out-quart);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

/* Link styled like text with underline animation */
.link-arrow {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-2xs);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--type-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  position: relative;
  padding-bottom: 4px;
  border-bottom: 1px solid currentColor;
  transition: gap var(--duration-normal) var(--ease-out-quart);
}

.link-arrow:hover {
  gap: var(--space-sm);
}


/* ═══════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════ */

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--color-line);
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out-quart);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-line-strong);
  box-shadow: var(--shadow-lg);
}

.card--feature {
  padding: var(--space-xl);
}

.card--service {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  text-align: left;
}

.card__index {
  font-family: var(--font-mono);
  font-size: var(--type-xs);
  letter-spacing: var(--tracking-widest);
  color: var(--color-accent-deep);
  text-transform: uppercase;
}

.card__title {
  font-family: var(--font-display);
  font-size: var(--type-xl);
  font-weight: var(--weight-light);
  line-height: var(--leading-tight);
  color: var(--color-ink);
  margin-bottom: var(--space-2xs);
}

.card__title em {
  font-style: italic;
  color: var(--color-primary);
}

.card__body {
  color: var(--color-ink-muted);
  font-size: var(--type-base);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-sm);
}

.card__price {
  font-family: var(--font-mono);
  font-size: var(--type-md);
  font-weight: var(--weight-medium);
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.card__price-label {
  font-family: var(--font-mono);
  font-size: var(--type-xs);
  color: var(--color-ink-soft);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.card__footer {
  margin-top: auto;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-line);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

/* Service card with image */
.service-card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-line);
  transition: all var(--duration-normal) var(--ease-out-quart);
}

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

.service-card__media {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
  background: var(--clay-100);
}

.service-card__media img,
.service-card__media .placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-luxe) var(--ease-out-quart);
}

.service-card:hover .service-card__media img {
  transform: scale(1.06);
}

.service-card__body {
  padding: var(--space-md);
}

.service-card__tag {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  padding: 4px 10px;
  background: rgba(251, 246, 240, 0.95);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-ink);
}


/* ═══════════════════════════════════════════
   PILLS / CHIPS
   ═══════════════════════════════════════════ */

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: 4px 12px;
  background: var(--clay-100);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--type-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--color-ink-muted);
}

.chip--accent {
  background: var(--gold-50);
  color: var(--color-accent-deep);
  border-color: var(--gold-200);
}

.chip--sage {
  background: var(--sage-50);
  color: var(--sage-700);
  border-color: var(--sage-200);
}

.chip--dot::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}


/* ═══════════════════════════════════════════
   MARQUEE (continuous scrolling text)
   ═══════════════════════════════════════════ */

.marquee {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-md);
  background: var(--color-ink);
  color: var(--clay-50);
  border-block: 1px solid var(--ink-700);
}

.marquee__track {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  animation: marquee 40s linear infinite;
  white-space: nowrap;
  will-change: transform;
}

.marquee__item {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: var(--weight-light);
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
}

.marquee__item::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-400);
  margin-left: var(--space-xl);
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}


/* ═══════════════════════════════════════════
   FORMS
   ═══════════════════════════════════════════ */

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  margin-bottom: var(--space-md);
}

.form-label {
  font-family: var(--font-mono);
  font-size: var(--type-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--type-base);
  color: var(--color-ink);
  transition: all var(--duration-fast) var(--ease-out-quart);
}

.form-input:hover,
.form-textarea:hover {
  border-color: var(--color-ink);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: 0;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(107, 65, 36, 0.12);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}


/* ═══════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════ */

.site-footer {
  background: var(--color-bg-deep);
  color: var(--color-on-deep);
  padding: var(--space-3xl) var(--gutter) var(--space-xl);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: var(--grain);
  opacity: 0.15;
  pointer-events: none;
}

.site-footer__inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  position: relative;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

@media (max-width: 900px) {
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .site-footer__top {
    grid-template-columns: 1fr;
  }
}

.site-footer__brand-mark {
  font-family: var(--font-display);
  font-size: var(--type-2xl);
  font-weight: var(--weight-light);
  line-height: 1;
  color: var(--clay-50);
  margin-bottom: var(--space-sm);
}

.site-footer__brand-mark em {
  font-style: italic;
  color: var(--gold-300);
}

.site-footer__brand-tag {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--type-md);
  color: var(--clay-200);
  margin-bottom: var(--space-md);
  max-width: 32ch;
}

.site-footer__column-title {
  font-family: var(--font-mono);
  font-size: var(--type-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--gold-300);
  margin-bottom: var(--space-sm);
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.site-footer__link {
  color: var(--clay-200);
  font-size: var(--type-sm);
  transition: color var(--duration-fast) var(--ease-out-quart);
}

.site-footer__link:hover {
  color: var(--clay-50);
}

.site-footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  color: var(--clay-200);
  font-size: var(--type-sm);
}

.site-footer__contact a {
  color: inherit;
  transition: color var(--duration-fast) var(--ease-out-quart);
}

.site-footer__contact a:hover {
  color: var(--gold-300);
}

.site-footer__social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.site-footer__social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(244, 233, 220, 0.2);
  border-radius: var(--radius-pill);
  color: var(--clay-200);
  transition: all var(--duration-fast) var(--ease-out-quart);
}

.site-footer__social a:hover {
  background: var(--gold-400);
  border-color: var(--gold-400);
  color: var(--ink-800);
  transform: translateY(-2px);
}

.site-footer__bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(244, 233, 220, 0.12);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: var(--type-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--ink-300);
}

.site-footer__bottom a {
  color: var(--gold-300);
}


/* ═══════════════════════════════════════════
   BADGES (credentials, trust marks)
   ═══════════════════════════════════════════ */

.credential-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--clay-50);
  border: 1px solid var(--gold-300);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: var(--type-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--ink-700);
}

.credential-badge__icon {
  width: 16px;
  height: 16px;
  color: var(--gold-500);
}

.credential-badge strong {
  color: var(--color-ink);
  font-weight: var(--weight-semibold);
}


/* ═══════════════════════════════════════════
   PRICING TABLE
   ═══════════════════════════════════════════ */

.price-list {
  display: grid;
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.price-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-surface);
  align-items: baseline;
  transition: background var(--duration-fast) var(--ease-out-quart);
}

.price-row:hover {
  background: var(--clay-50);
}

.price-row__name {
  font-family: var(--font-display);
  font-size: var(--type-md);
  font-weight: var(--weight-regular);
  color: var(--color-ink);
}

.price-row__name em {
  font-style: italic;
  color: var(--color-primary);
}

.price-row__price {
  font-family: var(--font-mono);
  font-size: var(--type-md);
  color: var(--color-primary);
  font-weight: var(--weight-medium);
  white-space: nowrap;
}

.price-row__desc {
  grid-column: 1 / -1;
  margin-top: 4px;
  font-size: var(--type-sm);
  color: var(--color-ink-soft);
  line-height: var(--leading-snug);
}


/* ═══════════════════════════════════════════
   CTA BAR (sticky bottom)
   ═══════════════════════════════════════════ */

.cta-bar {
  position: fixed;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md) var(--space-sm) var(--space-lg);
  background: var(--color-ink);
  color: var(--clay-50);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-xl);
  transition: transform var(--duration-slow) var(--ease-out-expo);
  max-width: calc(100vw - 2rem);
}

.cta-bar.is-visible {
  transform: translateX(-50%) translateY(0);
}

.cta-bar__text {
  font-family: var(--font-mono);
  font-size: var(--type-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  white-space: nowrap;
}

@media (max-width: 600px) {
  .cta-bar__text {
    display: none;
  }
}


/* ═══════════════════════════════════════════
   TAB STRIP
   ═══════════════════════════════════════════ */

.tab-strip {
  display: flex;
  gap: var(--space-2xs);
  padding: 4px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-pill);
  overflow-x: auto;
  scrollbar-width: none;
}

.tab-strip::-webkit-scrollbar {
  display: none;
}

.tab-strip__btn {
  padding: var(--space-2xs) var(--space-md);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--type-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-ink-muted);
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-out-quart);
}

.tab-strip__btn.is-active {
  background: var(--color-ink);
  color: var(--clay-50);
}