/* Dr. Montalvo DDS — site styles
   Brand: obsidian navy + antique gold, Libre Baskerville headings, Lato body. */

:root {
  --ink: #14182b;
  --ink-2: #1d2340;
  --gold: #b8962e;
  --gold-light: #d8bf73;
  --gold-dark: #8f7220;
  --paper: #faf8f3;
  --white: #ffffff;
  --text: #1f2333;
  --muted: #5d6275;
  --muted-on-dark: #b9bccb;
  --line: #e7e2d6;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(20, 24, 43, 0.08);
  --serif: "Libre Baskerville", Georgia, serif;
  --sans: "Lato", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --wrap: 1160px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.2; margin: 0 0 0.5em; color: var(--ink); }
h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }

.wrap { width: min(100% - 32px, var(--wrap)); margin-inline: auto; }
.section { padding: clamp(64px, 9vw, 112px) 0; }
.section--paper { background: var(--paper); }
.section--dark { background: var(--ink); color: var(--muted-on-dark); }
.section--dark h2, .section--dark h3 { color: var(--white); }
.center { text-align: center; }
.lede { font-size: 1.15rem; color: var(--muted); max-width: 640px; }
.center .lede { margin-inline: auto; }
.section--dark .lede { color: var(--muted-on-dark); }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 14px;
}
.section--dark .eyebrow, .hero .eyebrow { color: var(--gold-light); }
.gold { color: var(--gold); font-style: italic; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font: 700 0.95rem/1 var(--sans);
  letter-spacing: 0.02em;
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}
.btn:hover { transform: translateY(-1px); }
.btn--gold { background: var(--gold); color: var(--white); }
.btn--gold:hover { background: var(--gold-dark); }
.btn--ghost { border-color: rgba(255, 255, 255, 0.35); color: var(--white); }
.btn--ghost:hover { border-color: var(--gold-light); color: var(--gold-light); }
.btn--outline { border-color: var(--ink); color: var(--ink); }
.btn--outline:hover { background: var(--ink); color: var(--white); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.center .btn-row { justify-content: center; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.logo img { height: 46px; width: auto; }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  text-decoration: none; font-weight: 700; font-size: 0.92rem;
  padding: 8px 14px; border-radius: 999px; color: var(--text);
}
.nav a:hover { color: var(--gold-dark); }
.nav a[aria-current="page"] { background: var(--paper); color: var(--gold-dark); }
.nav .btn { margin-left: 10px; padding: 12px 22px; }
.nav .btn:hover { color: var(--white); }
.nav-toggle { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: transform 0.2s, opacity 0.2s; }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; top: 76px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--white); border-bottom: 1px solid var(--line);
    padding: 8px 16px 20px;
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 14px 8px; border-radius: 0; border-bottom: 1px solid var(--line); }
  .nav a[aria-current="page"] { background: none; }
  .nav .btn { margin: 16px 0 0; border-radius: 999px; border-bottom: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* Hero */
.hero { background: var(--ink); color: var(--muted-on-dark); overflow: hidden; position: relative; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 15% 20%, rgba(184, 150, 46, 0.14), transparent 55%);
  pointer-events: none;
}
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; padding: clamp(56px, 8vw, 96px) 0; position: relative; }
.hero h1 { color: var(--white); }
.hero p { font-size: 1.15rem; max-width: 520px; }
.hero-photo { position: relative; }
.hero-photo img { border-radius: 20px; aspect-ratio: 4 / 5; object-fit: cover; width: 100%; box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35); }
.hero-photo::after {
  content: ""; position: absolute; inset: -14px 14px 14px -14px;
  border: 1px solid rgba(216, 191, 115, 0.45); border-radius: 24px; z-index: -1;
}
.hero-photo { z-index: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.chips a {
  font-size: 0.82rem; font-weight: 700; letter-spacing: 0.04em;
  padding: 8px 14px; border-radius: 999px; text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.18); color: var(--white);
}
.chips a:hover { border-color: var(--gold-light); color: var(--gold-light); }

.page-hero { background: var(--ink); color: var(--muted-on-dark); padding: clamp(56px, 8vw, 96px) 0; text-align: center; }
.page-hero h1 { color: var(--white); font-size: clamp(2.2rem, 5vw, 3.4rem); }
.page-hero .lede { color: var(--muted-on-dark); margin-inline: auto; }

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero-photo { max-width: 440px; }
}

/* Cards & grids */
.grid { display: grid; gap: 22px; margin-top: 48px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 960px) { .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid--3, .grid--4, .grid--2 { grid-template-columns: 1fr; } }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}
.card p { color: var(--muted); margin: 0; }
a.card { text-decoration: none; display: block; }
a.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: var(--gold-light); }
.card .more { display: inline-block; margin-top: 16px; font-weight: 700; font-size: 0.9rem; color: var(--gold-dark); }
.section--dark .card { background: var(--ink-2); border-color: rgba(255, 255, 255, 0.08); }
.section--dark .card p { color: var(--muted-on-dark); }

.icon {
  width: 46px; height: 46px; border-radius: 12px; margin-bottom: 18px;
  display: grid; place-items: center;
  background: rgba(184, 150, 46, 0.12); color: var(--gold-dark);
}
.section--dark .icon { color: var(--gold-light); }
.icon svg { width: 22px; height: 22px; }

/* Split (photo + text) */
.split { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(36px, 6vw, 80px); align-items: center; }
.split--flip { grid-template-columns: 1.15fr 0.85fr; }
.split--flip .split-photo { order: 2; }
.split-photo img { border-radius: 20px; aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.caption { font-size: 0.9rem; color: var(--muted); margin-top: 12px; text-align: center; }
@media (max-width: 860px) {
  .split, .split--flip { grid-template-columns: 1fr; }
  .split--flip .split-photo { order: 0; }
  .split-photo { max-width: 460px; }
}

/* Services list */
.service {
  display: grid; grid-template-columns: 64px 1fr; gap: 24px;
  padding: 36px 0; border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}
.service:last-child { border-bottom: 1px solid var(--line); }
.service .num { font-family: var(--serif); font-size: 1.6rem; color: var(--gold); }
.service p { color: var(--muted); max-width: 760px; margin: 0; }
@media (max-width: 620px) { .service { grid-template-columns: 1fr; gap: 6px; } }

/* Quote */
.quote { max-width: 820px; margin: 0 auto; text-align: center; }
.quote blockquote { font-family: var(--serif); font-size: clamp(1.3rem, 2.6vw, 1.75rem); line-height: 1.5; color: var(--white); margin: 0 0 24px; }
.quote cite { font-style: normal; font-weight: 700; color: var(--gold-light); letter-spacing: 0.04em; }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 48px auto 0; max-width: 760px; position: relative; }
.timeline::before { content: ""; position: absolute; left: 88px; top: 6px; bottom: 6px; width: 1px; background: var(--line); }
.timeline li { display: grid; grid-template-columns: 88px 1fr; gap: 32px; padding-bottom: 36px; position: relative; }
.timeline li::before { content: ""; position: absolute; left: 83px; top: 8px; width: 11px; height: 11px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 5px var(--paper); }
.timeline .year { font-family: var(--serif); color: var(--gold-dark); font-size: 1.1rem; }
.timeline h3 { margin-bottom: 6px; }
.timeline p { color: var(--muted); margin: 0; }
@media (max-width: 560px) {
  .timeline::before { left: 5px; }
  .timeline li { grid-template-columns: 1fr; gap: 4px; padding-left: 32px; }
  .timeline li::before { left: 0; }
}

/* Institutions */
.logos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px; }
.logos div { border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius); padding: 24px 16px; text-align: center; }
.logos strong { display: block; font-family: var(--serif); font-size: 1.5rem; color: var(--white); font-weight: 400; }
.logos span { font-size: 0.85rem; }
@media (max-width: 760px) { .logos { grid-template-columns: repeat(2, 1fr); } }

/* Photo strip */
.photo-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 48px; }
.photo-strip figure { margin: 0; }
.photo-strip img { border-radius: var(--radius); aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.photo-strip figcaption { font-size: 0.9rem; color: var(--muted); margin-top: 10px; text-align: center; }
@media (max-width: 760px) { .photo-strip { grid-template-columns: 1fr; max-width: 420px; margin-inline: auto; } }

/* Checklist */
.checks { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 12px; }
.checks li { display: flex; gap: 12px; align-items: flex-start; }
.checks li::before { content: "✓"; color: var(--gold); font-weight: 700; }

/* FAQ */
.faq { max-width: 820px; margin: 40px auto 0; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; padding: 22px 40px 22px 0; position: relative;
  font-family: var(--serif); font-size: 1.12rem; color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font: 400 1.6rem var(--sans); color: var(--gold); transition: transform 0.2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--muted); padding-bottom: 20px; margin: 0; }

/* CTA band */
.cta { background: var(--ink); color: var(--muted-on-dark); text-align: center; padding: clamp(64px, 8vw, 96px) 0; position: relative; overflow: hidden; }
.cta::before { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 120%, rgba(184, 150, 46, 0.22), transparent 60%); }
.cta .wrap { position: relative; }
.cta h2 { color: var(--white); }
.cta p { max-width: 560px; margin-inline: auto; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 32px; align-items: start; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.form { background: var(--white); border: 1px solid var(--line); border-radius: 18px; padding: clamp(24px, 4vw, 40px); box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 700; font-size: 0.88rem; margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--text);
  padding: 13px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--gold-light); outline-offset: 1px; background: var(--white); }
.field textarea { min-height: 130px; resize: vertical; }
.hp { position: absolute; left: -9999px; }
.form-note { font-size: 0.9rem; color: var(--muted); margin: 14px 0 0; }
.form-status { margin-top: 16px; padding: 14px 16px; border-radius: 10px; display: none; }
.form-status.is-ok { display: block; background: #eef6ee; color: #23522a; }
.form-status.is-err { display: block; background: #fbeeee; color: #7a2222; }
.info-card { background: var(--paper); border-radius: 18px; padding: 32px; }
.info-card h3 { font-size: 0.8rem; font-family: var(--sans); font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--gold-dark); margin: 0 0 8px; }
.info-card > div + div { margin-top: 26px; padding-top: 26px; border-top: 1px solid var(--line); }
.hours { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; margin: 0; }
.hours dt { font-weight: 700; }
.hours dd { margin: 0; color: var(--muted); white-space: nowrap; }

/* Prose (privacy etc.) */
.prose { max-width: 760px; margin: 0 auto; }
.prose h2 { font-size: 1.45rem; margin-top: 2em; }
.prose p, .prose li { color: var(--muted); }

/* Footer */
.site-footer { background: #0e1120; color: var(--muted-on-dark); padding: 72px 0 32px; font-size: 0.95rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer img { height: 48px; width: auto; margin-bottom: 18px; }
.site-footer h4 { font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--gold-light); margin: 0 0 16px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--gold-light); }
.site-footer .hours dd { color: var(--muted-on-dark); }
.site-footer .hours dt { font-weight: 400; color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); margin-top: 48px; padding-top: 24px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 0.85rem; }

/* Reveal on scroll */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover, a.card:hover { transform: none; }
}

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ink); color: var(--white); padding: 10px 16px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }