/* SG Physical Rehab — global.sg-rehab.com
   Academic / lecture-deck visual system. No soft shadows, glass, or SaaS cards. */

:root {
  --ink: #082F57;
  --navy: #0A3762;
  --deep: #071F3A;
  --clinical: #0B6396;
  --accent: #3FAAD2;
  --mist: #F3F8FB;
  --snow: #FFFFFF;
  --warm: #EAB477;
  --rule: rgba(8, 47, 87, 0.14);
  --rule-strong: rgba(8, 47, 87, 0.28);
  --text: #1a2b3c;
  --muted: #5a6b7c;
  --on-dark: #F3F8FB;
  --on-dark-muted: rgba(243, 248, 251, 0.72);
  --max: 1120px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 3px;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --font-sans: "Avenir Next", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

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

body {
  margin: 0;
  color: var(--text);
  background: var(--snow);
  font-family: var(--font-sans);
  font-size: 1.0125rem;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--clinical); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--ink); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--deep);
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: var(--pad); top: 0.5rem; }

.wrap {
  width: min(100% - 2 * var(--pad), var(--max));
  margin-inline: auto;
}

/* —— Header —— */
.site-header {
  background: var(--deep);
  color: var(--on-dark);
  border-bottom: 1px solid rgba(63, 170, 210, 0.25);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.75rem;
  padding-block: 0.65rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
  min-width: 0;
}
.brand img {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}
.brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
  min-width: 0;
}
.brand-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  line-height: 1.2;
  white-space: nowrap;
}
.brand-tag {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(243, 248, 251, 0.35);
  color: var(--on-dark);
  border-radius: var(--radius);
  padding: 0.4rem 0.65rem;
  font: inherit;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}
.site-nav ul {
  display: flex;
  gap: 0.15rem 1.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
  flex-wrap: wrap;
}
.site-nav a {
  color: var(--on-dark-muted);
  text-decoration: none;
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--accent);
}
.site-nav .nav-cta {
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius);
}
.site-nav .nav-cta:hover {
  background: var(--accent);
  color: var(--deep);
}

@media (max-width: 760px) {
  .brand-tag { display: none; }
  .nav-toggle { display: inline-block; }
  .site-nav {
    display: none;
    width: 100%;
    padding-bottom: 0.85rem;
  }
  .site-nav.is-open { display: block; }
  .site-header .bar { flex-wrap: wrap; }
  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding-top: 0.35rem;
    border-top: 1px solid rgba(243, 248, 251, 0.12);
    width: 100%;
  }
}

/* —— Hero —— */
.hero {
  background: var(--deep);
  color: var(--on-dark);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(63, 170, 210, 0.2);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-block: clamp(2.5rem, 7vw, 5rem);
  align-items: center;
  position: relative;
  z-index: 1;
}
@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 2.5rem;
  }
}
.hero-kicker {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(63, 170, 210, 0.45);
  padding-bottom: 0.35rem;
}
.hero h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 5.2vw, 3.35rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 1.1rem;
  color: var(--snow);
}
.hero .lede {
  color: var(--on-dark-muted);
  font-size: 1.05rem;
  max-width: 36rem;
  margin: 0 0 1.75rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.hero-figure {
  margin: 0;
  border: 1px solid rgba(63, 170, 210, 0.28);
  border-radius: var(--radius);
  overflow: hidden;
  background: #06182e;
}
.hero-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: right center;
}
.hero-caption {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  padding: 0.55rem 0.75rem;
  border-top: 1px solid rgba(63, 170, 210, 0.2);
}

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.7rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font: inherit;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  line-height: 1.2;
}
.btn-primary {
  background: var(--accent);
  color: var(--deep);
  border-color: var(--accent);
}
.btn-primary:hover { background: #5fc0e0; color: var(--deep); }
.btn-ghost {
  background: transparent;
  color: var(--on-dark);
  border-color: rgba(243, 248, 251, 0.4);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-strong);
}
.btn-outline:hover { border-color: var(--clinical); color: var(--clinical); }
.btn-ink {
  background: var(--ink);
  color: var(--snow);
  border-color: var(--ink);
}
.btn-ink:hover { background: var(--navy); color: var(--snow); }

/* —— Sections —— */
.section {
  padding-block: clamp(3rem, 7vw, 5rem);
}
.section-mist { background: var(--mist); }
.section-navy {
  background: var(--deep);
  color: var(--on-dark);
}
.section-navy .muted { color: var(--on-dark-muted); }
.section-navy h2, .section-navy h3 { color: var(--snow); }

.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.5rem;
  align-items: end;
  margin-bottom: 2.25rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--rule);
}
.section-navy .section-head { border-bottom-color: rgba(243, 248, 251, 0.14); }
.chapter-num {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(3rem, 8vw, 4.5rem);
  line-height: 0.9;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.section-label {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--clinical);
  margin-bottom: 0.4rem;
}
.section-navy .section-label { color: var(--accent); }
.section-head h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.55rem, 3.2vw, 2.15rem);
  line-height: 1.25;
  margin: 0;
  color: var(--ink);
  max-width: 28ch;
}
.section-intro {
  max-width: 40rem;
  color: var(--muted);
  margin: -0.5rem 0 2rem;
}

h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.28rem;
  line-height: 1.3;
  color: var(--ink);
  margin: 0 0 0.65rem;
}
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }
.tiny {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Editorial split */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}
@media (min-width: 880px) {
  .split { grid-template-columns: 1fr 1fr; gap: 3rem; }
  .split.media-left > .split-media { order: 0; }
  .split.media-left > .split-copy { order: 1; }
}
.split-media {
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--mist);
}
.section-navy .split-media { border-color: rgba(63, 170, 210, 0.28); background: #06182e; }
.split-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.split-media.tall img { aspect-ratio: 3 / 4; object-fit: cover; }
.fig-note {
  font-size: 0.75rem;
  color: var(--muted);
  padding: 0.55rem 0.7rem;
  border-top: 1px solid var(--rule);
  margin: 0;
}
.section-navy .fig-note {
  color: var(--on-dark-muted);
  border-top-color: rgba(243, 248, 251, 0.12);
}

/* Numbered points */
.points { list-style: none; margin: 0; padding: 0; }
.points li {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 0.85rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--rule);
}
.section-navy .points li { border-bottom-color: rgba(243, 248, 251, 0.12); }
.points li:first-child { border-top: 1px solid var(--rule); }
.section-navy .points li:first-child { border-top-color: rgba(243, 248, 251, 0.12); }
.points .n {
  font-family: var(--font-serif);
  color: var(--accent);
  font-size: 1.25rem;
  line-height: 1.2;
}
.points strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 0.2rem;
}
.section-navy .points strong { color: var(--snow); }
.points p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.section-navy .points p { color: var(--on-dark-muted); }

/* Thin-border panels (not SaaS cards) */
.panel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--rule-strong);
  border-left: 1px solid var(--rule-strong);
}
@media (min-width: 700px) {
  .panel-grid.cols-2 { grid-template-columns: 1fr 1fr; }
  .panel-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
  .panel-grid.cols-4 { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1000px) {
  .panel-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
}
.panel {
  padding: 1.35rem 1.25rem 1.5rem;
  border-right: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
  background: var(--snow);
}
.section-mist .panel { background: var(--snow); }
.panel .tag {
  display: inline-block;
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clinical);
  margin-bottom: 0.65rem;
}
.panel h3 { font-size: 1.15rem; }
.panel p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* Scenario list */
.scenario-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule-strong);
}
.scenario-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem 1.5rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--rule);
}
@media (min-width: 760px) {
  .scenario-list li {
    grid-template-columns: minmax(12rem, 0.4fr) 1fr;
    align-items: baseline;
  }
}
.scenario-list h3 {
  font-size: 1.05rem;
  margin: 0;
}
.scenario-list p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* Method strip */
.method-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  overflow: hidden;
}
@media (min-width: 800px) {
  .method-steps { grid-template-columns: repeat(3, 1fr); }
}
.method-step {
  padding: 1.4rem 1.25rem 1.55rem;
  border-bottom: 1px solid var(--rule);
  background: var(--snow);
}
@media (min-width: 800px) {
  .method-step {
    border-bottom: 0;
    border-right: 1px solid var(--rule);
  }
  .method-step:last-child { border-right: 0; }
}
.method-step .n {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--accent);
  font-weight: 300;
  line-height: 1;
  margin-bottom: 0.75rem;
}
.method-step h3 { margin-bottom: 0.45rem; }
.method-step p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* Evidence cite */
.cite {
  font-size: 0.82rem;
  color: var(--muted);
  border-left: 2px solid var(--accent);
  padding-left: 0.85rem;
  margin: 1.25rem 0 0;
  max-width: 40rem;
}
.cite em { font-style: italic; }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--rule-strong); border-radius: var(--radius); }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 520px;
}
table.data th,
table.data td {
  text-align: left;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
table.data th {
  background: var(--mist);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
table.data tr:last-child td { border-bottom: 0; }

/* Booking / forms */
.form-grid {
  display: grid;
  gap: 1rem;
}
@media (min-width: 700px) {
  .form-grid.two { grid-template-columns: 1fr 1fr; }
}
label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
input, select, textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--snow);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  padding: 0.7rem 0.8rem;
}
textarea { min-height: 8rem; resize: vertical; }
.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}
.note-box {
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  background: var(--mist);
  font-size: 0.95rem;
  color: var(--muted);
}
.note-box strong { color: var(--ink); }

.wa-block {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.35rem;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  background: var(--snow);
}
.wa-block h3 { margin: 0; }

/* Footer */
.site-footer {
  background: var(--deep);
  color: var(--on-dark-muted);
  padding-block: 2.5rem 2rem;
  border-top: 1px solid rgba(63, 170, 210, 0.22);
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  gap: 1.75rem;
}
@media (min-width: 800px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
.site-footer h2 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--snow);
  font-weight: 400;
  margin: 0 0 0.65rem;
}
.site-footer a { color: var(--accent); text-decoration: none; }
.site-footer a:hover { color: var(--snow); }
.footer-meta {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(243, 248, 251, 0.12);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  font-size: 0.78rem;
}
.disclaimer {
  max-width: 48rem;
  font-size: 0.8rem;
  line-height: 1.5;
}

/* Page title band (inner pages) */
.page-band {
  background: var(--deep);
  color: var(--on-dark);
  padding-block: clamp(2rem, 5vw, 3.25rem);
  border-bottom: 1px solid rgba(63, 170, 210, 0.22);
}
.page-band .tiny { color: var(--accent); margin-bottom: 0.65rem; }
.page-band h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  line-height: 1.2;
  margin: 0 0 0.75rem;
  color: var(--snow);
  max-width: 18ch;
}
.page-band p {
  margin: 0;
  max-width: 40rem;
  color: var(--on-dark-muted);
}

.stack-lg > * + * { margin-top: 1.25rem; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}