/* ==========================================================================
   CHISEL DENTAL CLINIC
   Design tokens: cool paper base + teal/mint trust palette + single coral CTA accent
   ========================================================================== */

:root {
  --paper: #f4f7f6;
  --paper-dim: #e8edeb;
  --white: #ffffff;
  --ink: #12302b;
  --ink-70: rgba(18, 48, 43, 0.7);
  --ink-50: rgba(18, 48, 43, 0.5);

  --teal: #1f6f63;
  --teal-deep: #0f3f38;
  --teal-light: #64c7b4;
  --mint: #d8efe8;
  --coral: #f0664b;
  --coral-deep: #d94f36;

  --edge: rgba(18, 48, 43, 0.1);
  --edge-strong: rgba(18, 48, 43, 0.16);

  --font-display: "Newsreader", serif;
  --font-body: "Work Sans", sans-serif;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

section[id] { scroll-margin-top: 88px; }

::selection { background: var(--teal-light); color: var(--teal-deep); }

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.cursor-halo {
  position: fixed;
  top: 0; left: 0;
  width: 420px; height: 420px;
  margin-left: -210px; margin-top: -210px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(31, 111, 99, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
  transform: translate(-1000px, -1000px);
  transition: transform 0.15s linear;
}

@media (max-width: 860px) {
  .cursor-halo { display: none; }
}

/* ========================= header ========================= */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(244, 247, 246, 0.85);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--edge);
  box-shadow: 0 8px 30px -20px rgba(18, 48, 43, 0.3);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-mark { width: 30px; height: 30px; flex-shrink: 0; }

.tooth-path {
  stroke: var(--teal-light);
  stroke-width: 4;
  fill: none;
  stroke-dasharray: 130;
  stroke-dashoffset: 130;
  animation: draw-tooth 1.6s var(--ease) 0.2s forwards;
}

@keyframes draw-tooth {
  to { stroke-dashoffset: 0; }
}

.brand-word {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  line-height: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.brand-word-sub {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
}

.main-nav {
  display: flex;
  gap: 30px;
}

.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-70);
  position: relative;
  padding: 6px 0;
  transition: color 0.25s;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--coral);
  transition: right 0.3s var(--ease);
}

.main-nav a:hover { color: var(--ink); }
.main-nav a.is-active { color: var(--ink); }
.main-nav a.is-active::after { right: 0; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--teal-deep);
  white-space: nowrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border-radius: 9px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s;
}

.btn-primary {
  background: var(--coral);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--coral-deep);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -12px rgba(240, 102, 75, 0.55);
}

.btn-outline {
  border: 1.5px solid var(--edge-strong);
  color: var(--ink);
  background: var(--white);
}
.btn-outline:hover {
  border-color: var(--teal);
  color: var(--teal-deep);
  transform: translateY(-2px);
}

.btn-lg { padding: 15px 28px; font-size: 0.97rem; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  width: 20px; height: 1.6px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  top: 0; right: 0;
  width: min(320px, 82vw);
  height: 100vh;
  background: var(--white);
  border-left: 1px solid var(--edge);
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 100px 32px 40px;
  transform: translateX(100%);
  transition: transform 0.45s var(--ease);
}
.mobile-nav.is-open { transform: translateX(0); }

.mobile-nav a {
  padding: 15px 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  border-bottom: 1px solid var(--edge);
  color: var(--ink);
}

.mobile-phone {
  font-family: var(--font-body) !important;
  font-size: 0.95rem !important;
  color: var(--teal-deep) !important;
  font-weight: 600 !important;
}

.mobile-nav .mobile-book {
  margin-top: 20px;
  border-bottom: none;
  text-align: center;
  border-radius: 9px;
  background: var(--coral);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
}

@media (max-width: 900px) {
  .main-nav { display: none; }
  .header-phone { display: none; }
  .nav-toggle { display: flex; }
}
@media (min-width: 901px) {
  .mobile-nav { display: none; }
}

/* ========================= reveal-on-scroll ========================= */

.reveal-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
  transition-delay: var(--d, 0s);
}
.reveal-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================= hero ========================= */

.hero {
  position: relative;
  padding: 130px 28px 80px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -10%; right: -10%;
  width: 55%; height: 70%;
  background: radial-gradient(circle, var(--mint) 0%, transparent 70%);
  z-index: 0;
  opacity: 0.9;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items: center;
}

.hero-kicker {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 18px;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.6rem, 5vw, 4rem);
  line-height: 1.08;
  margin: 0 0 24px;
}

.hero-title span { display: block; }

.hero-em {
  font-style: italic;
  color: var(--teal);
}

.hero-sub {
  max-width: 460px;
  font-size: 1.08rem;
  color: var(--ink-70);
  margin: 0 0 34px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}

.hero-trust {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.trust-stat { display: flex; flex-direction: column; gap: 4px; }

.trust-num {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 600;
  color: var(--teal-deep);
}

.trust-label {
  font-size: 0.8rem;
  color: var(--ink-50);
}

.hero-visual { position: relative; }

.hero-photo {
  border-radius: 28px 28px 28px 4px;
  overflow: hidden;
  aspect-ratio: 4 / 4.7;
  box-shadow: 0 50px 90px -40px rgba(18, 48, 43, 0.35);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }

.hero-badge {
  position: absolute;
  left: -18px; bottom: 32px;
  background: var(--white);
  border-radius: 14px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 20px 40px -18px rgba(18, 48, 43, 0.35);
  animation: float-badge 6s ease-in-out infinite;
}
.hero-badge svg { color: var(--coral); flex-shrink: 0; }
.hero-badge strong { display: block; font-family: var(--font-display); font-size: 1.05rem; }
.hero-badge span { display: block; font-size: 0.76rem; color: var(--ink-50); }

@keyframes float-badge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.scroll-cue {
  position: relative;
  z-index: 1;
  display: block;
  margin: 60px auto 0;
  color: var(--teal);
  animation: cue-bounce 2s ease infinite;
}
@keyframes cue-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { max-width: 380px; margin: 0 auto; }
  .hero { padding-top: 110px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-badge, .scroll-cue { animation: none; }
}

/* ========================= why bar ========================= */

.why {
  padding: 70px 28px;
  background: var(--teal-deep);
  color: var(--paper);
}

.why-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.why-item { max-width: 260px; }

.why-icon {
  color: var(--teal-light);
  margin-bottom: 16px;
}

.why-item h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  margin: 0 0 8px;
}

.why-item p {
  font-size: 0.87rem;
  color: rgba(244, 247, 246, 0.68);
  margin: 0;
  line-height: 1.55;
}

@media (max-width: 900px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 560px) {
  .why-grid { grid-template-columns: 1fr; }
}

/* ========================= shared section head ========================= */

.section-head { max-width: 640px; margin: 0 auto 48px; padding: 0 28px; text-align: center; }

.section-kicker {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 14px;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 3.6vw, 2.7rem);
  margin: 0 0 14px;
  line-height: 1.15;
}

.section-sub {
  color: var(--ink-70);
  font-size: 1rem;
  margin: 0;
}

/* ========================= treatments ========================= */

.treatments { padding: 110px 0; }

.treatments-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.treat-card {
  background: var(--white);
  border: 1px solid var(--edge);
  border-radius: 16px;
  padding: 28px 24px;
  position: relative;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s;
}

.treat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 50px -30px rgba(18, 48, 43, 0.25);
  border-color: var(--teal-light);
}

.treat-icon {
  color: var(--teal);
  margin-bottom: 16px;
  transition: transform 0.4s var(--ease);
}
.treat-card:hover .treat-icon { transform: scale(1.1) rotate(-4deg); }

.treat-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  margin: 0 0 8px;
}

.treat-card p {
  font-size: 0.87rem;
  color: var(--ink-70);
  margin: 0 0 18px;
  line-height: 1.5;
}

.treat-price {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--teal-deep);
  background: var(--mint);
  padding: 5px 12px;
  border-radius: 100px;
}

@media (max-width: 1000px) {
  .treatments-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .treatments-grid { grid-template-columns: 1fr; }
}

/* ========================= doctor ========================= */

.doctor { padding: 40px 28px 120px; }

.doctor-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 70px;
  align-items: center;
}

.doctor-visual { position: relative; }

.doctor-photo {
  border-radius: 4px 28px 28px 28px;
  overflow: hidden;
  aspect-ratio: 4 / 4.8;
  box-shadow: 0 50px 90px -40px rgba(18, 48, 43, 0.3);
}
.doctor-photo img { width: 100%; height: 100%; object-fit: cover; }

.doctor-tag {
  position: absolute;
  right: -16px; bottom: -20px;
  background: var(--teal-deep);
  color: var(--paper);
  border-radius: 14px;
  padding: 16px 20px;
  font-size: 0.85rem;
  max-width: 200px;
  line-height: 1.4;
  box-shadow: 0 20px 40px -18px rgba(18, 48, 43, 0.4);
}
.doctor-tag span {
  display: block;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--teal-light);
}

.doctor-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 3.4vw, 2.6rem);
  margin: 10px 0 4px;
}

.doctor-cred {
  color: var(--teal);
  font-weight: 600;
  font-size: 0.95rem;
  margin: 0 0 20px;
}

.doctor-bio {
  color: var(--ink-70);
  font-size: 1.02rem;
  max-width: 560px;
  margin: 0 0 26px;
}

.doctor-facts {
  list-style: none;
  padding: 0;
  margin: 0 0 30px;
  display: grid;
  gap: 10px;
}
.doctor-facts li {
  font-size: 0.9rem;
  color: var(--ink-70);
  padding-left: 22px;
  position: relative;
}
.doctor-facts li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--coral);
}

@media (max-width: 900px) {
  .doctor-inner { grid-template-columns: 1fr; gap: 60px; }
  .doctor-visual { max-width: 340px; margin: 0 auto; }
  .doctor-copy { text-align: left; }
}

/* ========================= gallery ========================= */

.gallery { padding: 40px 28px 120px; background: var(--paper-dim); padding-top: 100px; }

.gallery-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 220px;
  gap: 18px;
}

.g-item {
  margin: 0;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  grid-row: span 1;
}
.g-item.g-wide { grid-column: span 2; }

.g-item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.7s var(--ease);
}
.g-item:hover img { transform: scale(1.08); }

.g-item figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 16px 18px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--white);
  background: linear-gradient(to top, rgba(15, 63, 56, 0.85), transparent);
}

@media (max-width: 760px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 180px; }
  .g-item.g-wide { grid-column: span 2; }
}

/* ========================= reviews ========================= */

.reviews { padding: 110px 28px; }

.reviews-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.review-card {
  background: var(--white);
  border: 1px solid var(--edge);
  border-radius: 16px;
  padding: 26px;
}

.review-stars {
  color: var(--coral);
  font-size: 0.9rem;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.review-quote {
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.5;
  margin: 0 0 18px;
}

.review-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--teal-deep);
  margin: 0;
}

@media (max-width: 1000px) {
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .reviews-grid { grid-template-columns: 1fr; }
}

/* ========================= book ========================= */

.book { padding: 40px 28px 120px; }

.book-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: start;
  background: var(--teal-deep);
  border-radius: 28px;
  padding: 64px;
  color: var(--paper);
}

.book-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 3.4vw, 2.6rem);
  margin: 8px 0 18px;
  line-height: 1.15;
}

.book-sub {
  color: rgba(244, 247, 246, 0.72);
  font-size: 1rem;
  max-width: 440px;
  margin: 0 0 36px;
}

.book .section-kicker { color: var(--teal-light); }

.book-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.book .btn-outline {
  background: transparent;
  border-color: rgba(244, 247, 246, 0.3);
  color: var(--paper);
}
.book .btn-outline:hover { border-color: var(--teal-light); color: var(--teal-light); }

.book-details {
  display: flex;
  gap: 44px;
  flex-wrap: wrap;
}

.book-detail-label {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-light);
  margin: 0 0 10px;
}
.book-detail-value { font-size: 0.92rem; margin: 0 0 2px; }
.book-detail-dim { color: rgba(244, 247, 246, 0.55); }

.book-form {
  background: var(--paper);
  border-radius: 18px;
  padding: 32px;
  display: grid;
  gap: 18px;
}

.form-row { display: grid; gap: 7px; }
.form-row label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-70);
}
.form-row input, .form-row select {
  border: 1.5px solid var(--edge-strong);
  border-radius: 8px;
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--ink);
  background: var(--white);
  transition: border-color 0.25s;
}
.form-row input:focus, .form-row select:focus {
  border-color: var(--teal);
  outline: none;
}

.form-submit { margin-top: 6px; justify-self: start; }

@media (max-width: 900px) {
  .book-inner { grid-template-columns: 1fr; padding: 40px 26px; border-radius: 20px; }
}

/* ========================= footer ========================= */

.site-footer {
  padding: 56px 28px 28px;
  border-top: 1px solid var(--edge);
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.footer-nav { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-nav a, .footer-social a {
  font-size: 0.87rem;
  color: var(--ink-70);
  transition: color 0.25s;
}
.footer-nav a:hover, .footer-social a:hover { color: var(--teal); }
.footer-social { display: flex; gap: 20px; }

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 22px;
  border-top: 1px solid var(--edge);
}
.footer-bottom p {
  margin: 0;
  font-size: 0.78rem;
  color: var(--ink-50);
  max-width: 640px;
}

/* ========================= reduced motion ========================= */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}