/* =========================================================
   S & I DENTAL CLINIC — NAVBAR
   Capsule → Full-width on scroll
   Responsive hamburger navigation
   ========================================================= */

/* =========================================================
   NAVBAR WRAPPER
   ========================================================= */
.si-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  padding: 0.9rem 0;
  pointer-events: none;
  transition: padding var(--transition-base);
}

/* =========================================================
   NAVBAR CONTAINER / CAPSULE
   ========================================================= */
.si-navbar > .container {
  width: calc(100% - 2rem);
  max-width: 1440px;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  background-color: rgba(252, 251, 247, 0.96);
  border: 1px solid rgba(var(--rgb-forest), 0.10);
  border-radius: var(--radius-pill);
  box-shadow:
    0 10px 35px rgba(var(--rgb-forest), 0.10),
    0 2px 8px rgba(var(--rgb-forest), 0.05);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  pointer-events: auto;
  transition:
    width var(--transition-base),
    max-width var(--transition-base),
    min-height var(--transition-base),
    padding var(--transition-base),
    border-radius var(--transition-base),
    background-color var(--transition-base),
    box-shadow var(--transition-base);
}

/* =========================================================
   SCROLLED NAVBAR
   Capsule becomes thin full-width bar
   ========================================================= */
.si-navbar.is-solid {
  padding: 0;
}

.si-navbar.is-solid > .container {
  width: 100%;
  max-width: none;
  min-height: 68px;
  padding-inline: max(1.25rem, calc((100vw - 1320px) / 2));
  border-radius: 0;
  border-top: 0;
  border-left: 0;
  border-right: 0;
  border-bottom: 1px solid rgba(var(--rgb-forest), 0.10);
  background-color: rgba(252, 251, 247, 0.97);
  box-shadow: 0 4px 18px rgba(var(--rgb-forest), 0.07);
}

/* =========================================================
   BRAND
   ========================================================= */
.si-navbar__brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
  line-height: 1;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.si-navbar__brand:hover {
  transform: translateY(-1px);
  opacity: 0.94;
}

/* Logo */
.si-navbar__logo {
  display: block;
  width: auto;
  height: 46px;
  object-fit: contain;
  transition: height var(--transition-base);
}

.si-navbar.is-solid .si-navbar__logo {
  height: 40px;
}

/* Brand text */
.si-navbar__brandtext {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  font-family: var(--font-display);
}

.si-navbar__brandtext .name {
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--color-forest);
  white-space: nowrap;
}

.si-navbar__brandtext .tag {
  margin-top: 0.12rem;
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold);
  white-space: nowrap;
}

/* =========================================================
   DESKTOP NAVIGATION
   ========================================================= */
.si-navbar__links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
  margin-left: auto;
}

.si-navbar__links a {
  position: relative;
  padding-block: 0.4rem;
  font-family: var(--font-body);
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--color-charcoal);
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.si-navbar__links a:hover {
  color: var(--color-forest);
}

/* Underline */
.si-navbar__links > a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background-color: var(--color-gold);
  transition: right var(--transition-base);
}

.si-navbar__links > a:hover::after, .si-navbar__links > a.active::after {
  right: 0;
}

.si-navbar__links > a.active {
  color: var(--color-forest);
  font-weight: 700;
}

/* Login gets a subtle pill */
.si-navbar__links > a[href="login.html"] {
  padding: 0.45rem 1rem;
  border: 1px solid rgba(var(--rgb-forest), 0.18);
  border-radius: var(--radius-pill);
}

.si-navbar__links > a[href="login.html"]::after {
  display: none;
}

.si-navbar__links > a[href="login.html"]:hover {
  background-color: rgba(var(--rgb-forest), 0.05);
}

/* =========================================================
   RIGHT-SIDE ACTIONS
   ========================================================= */
.si-navbar__actions {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
}

/* =========================================================
   CALL ICON
   ========================================================= */
.si-navbar__phone {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  color: var(--color-forest);
  border: 1px solid rgba(var(--rgb-forest), 0.15);
  background-color: rgba(var(--rgb-forest), 0.035);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.si-navbar__phone svg {
  width: 19px;
  height: 19px;
  color: var(--color-forest);
}

.si-navbar__phone:hover {
  background-color: var(--color-soft-sage);
  border-color: var(--color-sage);
  color: var(--color-forest);
  transform: translateY(-2px);
}

/* =========================================================
   DESKTOP APPOINTMENT BUTTON
   ========================================================= */
.si-navbar__appointment {
  flex-shrink: 0;
}

/* =========================================================
   MOBILE HAMBURGER
   ========================================================= */
.si-navbar__toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
  border: 1px solid rgba(var(--rgb-forest), 0.15);
  border-radius: 50%;
  background-color: rgba(var(--rgb-forest), 0.035);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.si-navbar__toggle:hover {
  background-color: var(--color-soft-sage);
  border-color: var(--color-sage);
}

.si-navbar__toggle:active {
  transform: scale(0.96);
}

.si-navbar__toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: var(--radius-pill);
  background-color: var(--color-forest);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Hamburger → X */
.si-navbar__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.si-navbar__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.si-navbar__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =========================================================
   MOBILE CTA
   ========================================================= */
.si-navbar__mobile-cta {
  display: none;
}

/* =========================================================
   TABLET / MOBILE
   ========================================================= */
@media (max-width: 991px) {
  .si-navbar {
    padding: 0.7rem 0;
  }

  .si-navbar > .container {
    width: calc(100% - 1.5rem);
    min-height: 70px;
    padding: 0.65rem 1.1rem;
    border-radius: 26px;
  }

  /* -----------------------------------------
     Brand
     ----------------------------------------- */
  .si-navbar__logo {
    height: 42px;
  }

  .si-navbar__brandtext .name {
    font-size: 1.12rem;
  }

  .si-navbar__brandtext .tag {
    font-size: 0.55rem;
  }

  /* -----------------------------------------
     Hide desktop navigation
     ----------------------------------------- */
  .si-navbar__links {
    position: absolute;
    top: calc(100% + 0.65rem);
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 1.15rem 1.15rem 1.25rem;
    background-color: var(--color-warm-white);
    border: 1px solid rgba(var(--rgb-forest), 0.10);
    border-radius: 26px;
    box-shadow: 0 18px 45px rgba(var(--rgb-forest), 0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
    transition:
      opacity var(--transition-fast),
      transform var(--transition-base),
      visibility var(--transition-fast);
  }

  /* Open menu */
  .si-navbar__links.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  /* -----------------------------------------
     Mobile links
     ----------------------------------------- */
  .si-navbar__links > a {
    width: 100%;
    padding: 0.9rem 0.75rem;
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-charcoal);
    border-radius: var(--radius-sm);
  }

  .si-navbar__links > a:hover, .si-navbar__links > a.active {
    color: var(--color-forest);
    background-color: rgba(var(--rgb-forest), 0.045);
  }

  .si-navbar__links > a::after {
    display: none;
  }

  /* Login */
  .si-navbar__links > a[href="login.html"] {
    padding: 0.9rem 0.75rem;
    border: 0;
    border-radius: var(--radius-sm);
  }

  /* -----------------------------------------
     Mobile CTA
     ----------------------------------------- */
  .si-navbar__mobile-cta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
    margin-top: 0.8rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(var(--rgb-forest), 0.10);
  }

  .si-navbar__mobile-cta .btn-si {
    width: 100%;
  }

  /* -----------------------------------------
     Right actions
     ----------------------------------------- */
  .si-navbar__actions {
    gap: 0.55rem;
  }

  .si-navbar__appointment {
    display: none;
  }

  .si-navbar__phone {
    width: 42px;
    height: 42px;
  }

  .si-navbar__toggle {
    display: flex;
  }

  /* -----------------------------------------
     Prevent body scrolling
     ----------------------------------------- */
  body.nav-open {
    overflow: hidden;
  }
}

/* =========================================================
   MOBILE
   ========================================================= */
@media (max-width: 575px) {
  .si-navbar {
    padding: 0.55rem 0;
  }

  .si-navbar > .container {
    width: calc(100% - 1rem);
    min-height: 68px;
    padding: 0.55rem 0.85rem;
    border-radius: 24px;
  }

  .si-navbar.is-solid {
    padding: 0;
  }

  .si-navbar.is-solid > .container {
    min-height: 64px;
    width: 100%;
    padding-inline: 1rem;
    border-radius: 0;
  }

  /* Brand */
  .si-navbar__brand {
    gap: 0.5rem;
  }

  .si-navbar__logo {
    height: 40px;
  }

  .si-navbar__brandtext .name {
    font-size: 1.02rem;
  }

  .si-navbar__brandtext .tag {
    display: block;
    margin-top: 0.14rem;
    font-size: 0.58rem;
    letter-spacing: 0.07em;
    text-transform: none;
    color: var(--color-gold);
    line-height: 1.15;
  }

  /* Actions */
  .si-navbar__phone, .si-navbar__toggle {
    width: 40px;
    height: 40px;
  }

  .si-navbar__phone svg {
    width: 18px;
    height: 18px;
  }

  .si-navbar__toggle span {
    width: 19px;
  }

  /* Mobile menu */
  .si-navbar__links {
    top: calc(100% + 0.5rem);
    border-radius: 22px;
    padding: 0.9rem;
  }

  .si-navbar__links > a {
    font-size: 1rem;
  }
}

/* =========================================================
   VERY SMALL SCREENS
   ========================================================= */
@media (max-width: 380px) {
  .si-navbar__brandtext .name {
    font-size: 0.95rem;
  }

  .si-navbar__phone {
    display: none;
  }

  .si-navbar__toggle {
    width: 40px;
    height: 40px;
  }
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  .si-navbar,
  .si-navbar > .container,
  .si-navbar__links,
  .si-navbar__toggle,
  .si-navbar__toggle span,
  .si-navbar__phone {
    transition: none;
  }
}