/* Craig Tanio, MD — personal physician site
   Brand: navy #0B1F33 · off-white #F7F4EF · teal #2A6F6A · gold #C4A574 */

:root {
  --navy: #0B1F33;
  --navy-soft: #143049;
  --cream: #F7F4EF;
  --cream-dark: #EDE8E0;
  --teal: #2A6F6A;
  --teal-deep: #1F5551;
  --gold: #C4A574;
  --ink: #0B1F33;
  --ink-muted: #4A5A6A;
  --line: rgba(11, 31, 51, 0.12);
  --line-strong: rgba(11, 31, 51, 0.22);
  --shadow: 0 18px 50px rgba(11, 31, 51, 0.08);
  --serif: "Fraunces", "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Source Sans 3", "Source Sans Pro", system-ui, -apple-system, sans-serif;
  --wrap: min(1120px, calc(100% - 2.5rem));
  --header-h: 4.25rem;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--cream);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--teal-deep); }
h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin: 0 0 0.6em;
}
p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--navy);
  color: var(--cream);
  padding: 0.6rem 1rem;
  z-index: 100;
  border-radius: 2px;
}
.skip-link:focus { top: 1rem; }

.wrap {
  width: var(--wrap);
  margin-inline: auto;
}

/* ——— Header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 244, 239, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 30px rgba(11, 31, 51, 0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1.5rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--navy);
}
.logo:hover { color: var(--navy); }
.logo-mark {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border: 1.5px solid var(--navy);
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--navy);
  background: transparent;
}
.logo-text {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.site-nav a {
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--navy);
}
.nav-cta {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--navy) !important;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.nav-cta:hover {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--cream) !important;
}
.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  display: block;
  width: 1.35rem;
  height: 1.5px;
  background: var(--navy);
  margin: 0.35rem auto;
  transition: transform 0.25s var(--ease), opacity 0.2s;
}
.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* ——— Shared ——— */
.eyebrow {
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 1rem;
}
.lede {
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  line-height: 1.55;
  color: var(--ink-muted);
  max-width: 36rem;
}
.lede.narrow { max-width: 34rem; }
.section-head { margin-bottom: 2.5rem; }
.section-head h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.55rem);
  max-width: 18ch;
  margin-bottom: 0;
}
.section-head-center {
  text-align: center;
  margin-inline: auto;
}
.section-head-center h2 {
  margin-inline: auto;
}

.section-sub {
  margin: 0.85rem auto 0;
  max-width: 34rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.5;
}
.focus .section-sub {
  color: rgba(247, 244, 239, 0.62);
}


.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.85rem;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--navy);
  color: var(--cream);
  border-color: var(--navy);
}
.btn-primary:hover {
  background: var(--navy-soft);
  color: var(--cream);
}
.btn-ghost {
  background: transparent;
  color: var(--navy);
  border-color: var(--line-strong);
}
.btn-ghost:hover {
  border-color: var(--navy);
  color: var(--navy);
}
.btn-text {
  background: transparent;
  color: var(--teal);
  border: 0;
  padding-inline: 0.35rem;
  min-height: auto;
  font-weight: 600;
}
.btn-text:hover { color: var(--teal-deep); }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-top: 2rem;
}

/* ——— Hero ——— */
.hero {
  padding: clamp(3.5rem, 9vw, 6.5rem) 0 clamp(4rem, 10vw, 7rem);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: min(42vw, 480px);
  height: min(42vw, 480px);
  background: radial-gradient(circle at center, rgba(42, 111, 106, 0.09), transparent 68%);
  pointer-events: none;
  transform: translate(-20%, -30%);
}
.hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 10%;
  width: 1px;
  height: 40%;
  background: linear-gradient(to bottom, transparent, var(--gold), transparent);
  opacity: 0.7;
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(240px, 0.7fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: end;
  position: relative;
}
.hero h1 {
  font-size: clamp(2.8rem, 7vw, 4.6rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.02;
  margin: 0 0 1.35rem;
}
.hero h1 em {
  font-style: italic;
  font-weight: 400;
  color: var(--teal);
}
.hero-aside {
  display: grid;
  gap: 1.25rem;
  padding: 1.75rem 1.6rem;
  background: var(--navy);
  color: var(--cream);
  border-radius: 2px;
  box-shadow: var(--shadow);
  position: relative;
}
.hero-aside::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gold);
}
.aside-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 0.4rem;
}
.aside-value {
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1.35;
  margin: 0;
  color: var(--cream);
}
.aside-meta {
  font-size: 0.88rem;
  color: rgba(247, 244, 239, 0.62);
  margin: 0.35rem 0 0;
}
.aside-rule {
  height: 1px;
  background: rgba(247, 244, 239, 0.15);
  margin: 0.25rem 0;
}
.aside-note {
  font-size: 0.85rem;
  line-height: 1.45;
  color: rgba(247, 244, 239, 0.72);
  margin: 0;
}

/* ——— About ——— */
.about {
  padding: clamp(4rem, 9vw, 6.5rem) 0;
  border-top: 1px solid var(--line);
}
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.about-body {
  font-size: 1.08rem;
  color: var(--ink-muted);
}
.about-body a { font-weight: 600; }
.about-body .mission {
  margin-top: 1.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
  color: var(--navy);
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.5;
  font-weight: 500;
}

/* ——— Focus ——— */
.focus {
  padding: clamp(4rem, 9vw, 6.5rem) 0;
  background: var(--navy);
  color: var(--cream);
}
.focus .eyebrow { color: var(--gold); }
.focus h2,
.focus h3 { color: var(--cream); }
.focus-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 0.5rem;
}
.focus-card {
  padding: 1.75rem 1.6rem 1.85rem;
  border: 1px solid rgba(247, 244, 239, 0.12);
  border-radius: 2px;
  background: rgba(247, 244, 239, 0.03);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}
.focus-card:hover {
  border-color: rgba(196, 165, 116, 0.45);
  background: rgba(247, 244, 239, 0.05);
  transform: translateY(-2px);
}
.focus-num {
  display: block;
  font-family: var(--serif);
  font-size: 0.9rem;
  color: var(--gold);
  margin-bottom: 1.1rem;
  letter-spacing: 0.06em;
}
.focus-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.7rem;
}
.focus-card p {
  color: rgba(247, 244, 239, 0.72);
  font-size: 0.98rem;
  margin: 0;
}

/* ——— Writing preview / page ——— */
.writing-preview,
.writing-page {
  padding: clamp(4rem, 9vw, 6.5rem) 0;
}
.writing-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 2.25rem;
  flex-wrap: wrap;
}
.writing-head h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.55rem);
  margin: 0;
  max-width: 16ch;
}
.writing-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.writing-item {
  display: block;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: padding-left 0.25s var(--ease);
}
.writing-item:hover {
  padding-left: 0.5rem;
  color: inherit;
}
.writing-item:hover h2,
.writing-item:hover h3 { color: var(--teal); }
.writing-meta {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.55rem;
}
.writing-item h2,
.writing-item h3 {
  font-size: clamp(1.25rem, 2.4vw, 1.55rem);
  margin-bottom: 0.5rem;
  transition: color 0.2s var(--ease);
}
.writing-item p {
  color: var(--ink-muted);
  max-width: 52rem;
  margin-bottom: 0;
}
.writing-link {
  display: inline-block;
  margin-top: 0.85rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--teal);
}
.writing-item.featured {
  padding-top: 2rem;
  padding-bottom: 2rem;
}
.writing-item.featured h2 {
  font-size: clamp(1.55rem, 3vw, 2rem);
}
.writing-note {
  margin-top: 2rem;
  font-size: 0.98rem;
  color: var(--ink-muted);
}
.writing-note a { font-weight: 600; }

.page-hero {
  padding: clamp(3rem, 8vw, 5rem) 0 0;
}
.page-hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.6rem);
  max-width: 16ch;
  margin-bottom: 1.25rem;
}
.substack-card {
  margin-top: 3.5rem;
  padding: clamp(1.75rem, 4vw, 2.5rem);
  background: var(--cream-dark);
  border-left: 3px solid var(--gold);
  border-radius: 2px;
}
.substack-card h2 {
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  margin-bottom: 0.75rem;
}
.substack-card p { color: var(--ink-muted); }
.fine-print {
  margin-top: 1.5rem !important;
  font-size: 0.88rem !important;
  color: var(--ink-muted);
}

/* ——— Connect ——— */
.connect {
  padding: clamp(4rem, 9vw, 6.5rem) 0;
  border-top: 1px solid var(--line);
  background:
    linear-gradient(180deg, transparent, rgba(42, 111, 106, 0.04));
}
.connect-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.connect-lede {
  color: var(--ink-muted);
  max-width: 30rem;
  margin-top: 1rem;
}
.connect-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.connect-list a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--navy);
}
.connect-list a:hover .connect-value { color: var(--teal); }
.connect-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.connect-value {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 500;
  transition: color 0.2s var(--ease);
}

/* ——— Footer ——— */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0 2.25rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.88rem;
  color: var(--ink-muted);
}
.footer-inner a {
  color: var(--ink-muted);
  text-decoration: none;
  font-weight: 500;
}
.footer-inner a:hover { color: var(--navy); }

/* ——— Mobile ——— */
@media (max-width: 860px) {
  :root { --wrap: min(1120px, calc(100% - 1.75rem)); }

  .nav-toggle { display: block; }
  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 1.25rem 1.25rem;
    background: var(--cream);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 40px rgba(11, 31, 51, 0.08);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }
  .site-nav .nav-cta {
    margin-top: 0.75rem;
    text-align: center;
    border-bottom: 0;
  }

  .hero-grid,
  .about-grid,
  .connect-grid {
    grid-template-columns: 1fr;
  }
  .hero-aside { order: 2; }
  .hero::after { display: none; }
  .focus-grid { grid-template-columns: 1fr; }
  .section-head h2,
  .writing-head h2 { max-width: none; }
  .hero h1 { font-size: clamp(2.45rem, 11vw, 3.4rem); }
  .page-hero h1 { max-width: none; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
  .btn-text { width: auto; justify-content: flex-start; }
  .logo-text { display: none; }
  .connect-list a {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}


/* ——— Photos ——— */
.hero-aside {
  background: transparent;
  color: inherit;
  padding: 0;
  box-shadow: none;
  gap: 0;
}
.hero-aside::before { display: none; }
.hero-photo {
  margin: 0;
  overflow: hidden;
  border-radius: 4px 4px 0 0;
  box-shadow: var(--shadow);
}
.hero-photo img {
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 50% 18%;
  display: block;
}
.hero-creds {
  background: var(--navy);
  color: var(--cream);
  padding: 1.1rem 1.2rem 1.2rem;
  border-radius: 0 0 4px 4px;
  position: relative;
}
.hero-creds::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gold);
}
.hero-creds .aside-value { color: var(--cream); font-size: 1.05rem; }
.hero-creds .aside-note { margin-top: 0.4rem; }

.about-photo {
  margin: 0;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.about-photo img {
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: 50% 15%;
  display: block;
}

/* Desktop-only photo grids — must NOT override mobile single-column rules */
@media (min-width: 861px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.95fr);
    align-items: center;
  }
  .about-grid {
    grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
    align-items: start;
  }
}

.photo-band {
  padding: 0;
  background: var(--navy);
}
.photo-band-frame {
  margin: 0;
  max-height: 420px;
  overflow: hidden;
}
.photo-band-frame img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: 35% 40%;
  display: block;
  filter: saturate(0.92);
}

@media (max-width: 860px) {
  html, body { overflow-x: hidden; }
  .hero {
    padding-top: 1.25rem;
  }
  .hero h1 {
    font-size: clamp(2.1rem, 10vw, 2.85rem);
    line-height: 1.05;
  }
  .hero .lede {
    font-size: 1.02rem;
  }
  .hero-actions {
    gap: 0.65rem;
  }
  .hero-aside {
    max-width: 22rem;
    margin-inline: auto;
    width: 100%;
  }
  .hero-photo img,
  .about-photo img {
    aspect-ratio: 4 / 5;
  }
  .about-photo {
    max-width: 18rem;
    margin-inline: auto;
  }
  .focus-card {
    padding: 1.35rem 1.2rem 1.45rem;
  }
  .focus-card h3 {
    font-size: 1.2rem;
  }
  .writing-item h3 {
    font-size: 1.15rem;
  }
  .photo-band-frame,
  .photo-band-frame img {
    height: 220px;
    max-height: 220px;
  }
  .section-sub {
    font-size: 0.95rem;
    padding-inline: 0.25rem;
  }
}

@media (max-width: 480px) {
  :root { --wrap: min(1120px, calc(100% - 1.25rem)); --header-h: 3.75rem; }
  .hero h1 { font-size: clamp(1.95rem, 11vw, 2.45rem); }
  .logo-mark { width: 1.85rem; height: 1.85rem; font-size: 0.72rem; }
}