/* ============================================
   THE HAIR LOFT — Components
   ============================================ */

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.875rem 2rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-snappy);
  min-height: 48px;
  min-width: 44px;
  line-height: 1;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--secondary:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--dark {
  background-color: var(--color-charcoal);
  color: var(--color-cream);
  border-color: var(--color-charcoal);
}

.btn--dark:hover {
  background-color: var(--color-charcoal-light);
  border-color: var(--color-charcoal-light);
  color: var(--color-cream);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--white {
  background-color: var(--color-white);
  color: var(--color-charcoal);
  border-color: var(--color-white);
}

.btn--white:hover {
  background-color: var(--color-cream);
  border-color: var(--color-cream);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline-white {
  background-color: transparent;
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--outline-white:hover {
  background-color: rgba(255, 255, 255, 0.12);
  border-color: #FFFFFF;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--sm {
  padding: 0.625rem 1.25rem;
  font-size: var(--fs-xs);
  min-height: 40px;
}

.btn--lg {
  padding: 1.125rem 2.5rem;
  font-size: var(--fs-base);
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---- SITE NAV — Frosted Glass ---- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-nav--scrolled {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

/* Brand */
.site-nav__brand {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: var(--fw-semibold);
  color: var(--color-charcoal);
  text-decoration: none;
  letter-spacing: -0.01em;
  line-height: 1;
  flex-shrink: 0;
}

.site-nav__brand-accent {
  color: var(--color-accent);
}

/* Nav links */
.site-nav__links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-nav__link {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: var(--fw-medium);
  color: var(--color-warm-gray);
  text-decoration: none;
  letter-spacing: 0.02em;
  position: relative;
  padding: 4px 0;
  transition: color 0.2s ease;
}

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  border-radius: 1px;
  transition: width 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

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

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

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

/* CTA button */
.site-nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 10px 24px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  flex-shrink: 0;
  line-height: 1;
}

.site-nav__cta:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(166, 124, 82, 0.3);
}

.site-nav__cta svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* Right side group (links + CTA together) */
.site-nav__right {
  display: flex;
  align-items: center;
  gap: 32px;
}

/* Hamburger */
.site-nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: calc(var(--z-modal) + 1);
}

.site-nav__hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-charcoal);
  transition: all 0.3s ease;
  border-radius: 2px;
}

.site-nav__hamburger-line + .site-nav__hamburger-line {
  margin-top: 5px;
}

.site-nav__hamburger.active .site-nav__hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-nav__hamburger.active .site-nav__hamburger-line:nth-child(2) {
  opacity: 0;
}

.site-nav__hamburger.active .site-nav__hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(44, 40, 37, 0.6);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-nav.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav__link {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  color: var(--color-cream);
  text-decoration: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.15s ease;
}

.mobile-nav.open .mobile-nav__link {
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav__link:hover {
  color: var(--color-accent-light);
}

.mobile-nav__link--active {
  color: var(--color-accent-light);
}

.mobile-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: var(--space-md);
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-accent);
  color: #fff;
  border-radius: 6px;
  text-decoration: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease;
}

.mobile-nav.open .mobile-nav__cta {
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav__cta:hover {
  background: var(--color-accent-dark);
  color: #fff;
}

.mobile-nav__cta svg {
  width: 16px;
  height: 16px;
}

@media (max-width: 768px) {
  .site-nav {
    padding: 0 20px;
    height: 60px;
  }

  .site-nav__links,
  .site-nav__cta {
    display: none;
  }

  .site-nav__right {
    gap: 0;
  }

  .site-nav__hamburger {
    display: flex;
  }

  .mobile-nav__cta {
    width: calc(100% - 80px);
    max-width: 300px;
  }
}

/* ---- CARDS ---- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-snappy), transform var(--transition-snappy);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-sm);
  color: var(--color-accent);
}

.card__icon svg {
  width: 100%;
  height: 100%;
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-xs);
}

.card__text {
  font-size: var(--fs-sm);
  color: var(--color-warm-gray);
  line-height: var(--lh-relaxed);
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-accent);
  margin-top: var(--space-sm);
  text-decoration: none;
}

.card__link:hover {
  color: var(--color-accent-dark);
}

.card__link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.card__link:hover svg {
  transform: translateX(3px);
}

/* ---- TESTIMONIAL ---- */
.testimonial {
  text-align: center;
  max-width: 650px;
  margin: 0 auto;
}

.testimonial__stars {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.testimonial__stars svg {
  width: 20px;
  height: 20px;
}

.testimonial__quote {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-style: italic;
  line-height: var(--lh-snug);
  color: var(--color-charcoal);
  margin-bottom: var(--space-md);
}

.testimonial__attribution {
  font-size: var(--fs-sm);
  color: var(--color-warm-gray);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

/* ---- FOOTER ---- */
.footer {
  background-color: var(--color-charcoal);
  color: var(--color-warm-gray-light);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__brand {
  font-family: var(--font-heading);
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-cream);
  margin-bottom: var(--space-sm);
}

.footer__brand span {
  color: var(--color-accent-light);
}

.footer__desc {
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
  color: var(--color-warm-gray-light);
  max-width: 35ch;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--color-cream);
  margin-bottom: var(--space-sm);
}

.footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__links li {
  margin-bottom: var(--space-xs);
}

.footer__links a {
  font-size: var(--fs-sm);
  color: var(--color-warm-gray-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-accent-light);
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-xs);
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent-light);
}

.footer__contact-item a {
  color: var(--color-warm-gray-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__contact-item a:hover {
  color: var(--color-accent-light);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer__copyright {
  font-size: var(--fs-xs);
  color: var(--color-warm-gray);
}

.footer__credit {
  font-size: var(--fs-xs);
  color: var(--color-warm-gray);
}

.footer__credit a {
  color: var(--color-warm-gray-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__credit a:hover {
  color: var(--color-accent-light);
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ---- BACK TO TOP ---- */
.back-to-top {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  width: 44px;
  height: 44px;
  background-color: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-snappy);
  z-index: var(--z-sticky);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

/* ---- FORMS ---- */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-charcoal);
  margin-bottom: var(--space-2xs);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  color: var(--color-charcoal);
  background-color: var(--color-white);
  border: 1px solid var(--color-warm-gray-lighter);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 48px;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-subtle);
}

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

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

.form-error {
  font-size: var(--fs-xs);
  color: var(--color-error);
  margin-top: var(--space-2xs);
  display: none;
}

.form-group.has-error .form-error {
  display: block;
}

.form-hint {
  font-size: var(--fs-xs);
  color: var(--color-warm-gray);
  margin-top: var(--space-2xs);
}