/* ===========================================================
   HEART CARE FOUNDATION — DEMO STYLESHEET
   Design tokens
   =========================================================== */
:root {
  /* Color */
  --ink:        #15222a;
  --ink-soft:   #4a5a62;
  --bg:         #ffffff;
  --bg-soft:    #eef5f4;
  --bg-deep:    #0e3d42;
  --teal:       #0e5c63;
  --teal-deep:  #093c41;
  --crimson:    #c8273d;
  --crimson-deep: #9c1c2e;
  --line:       #dde7e6;
  --gold:       #c79a4b;

  /* Type */
  --font-display: "Fraunces", "Noto Serif Bengali", serif;
  --font-body:    "Inter", "Noto Sans Bengali", sans-serif;
  --font-mono:    "IBM Plex Mono", monospace;

  /* Layout */
  --container: 1180px;
  --radius: 14px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 .5em;
  color: var(--teal-deep);
}
p { margin: 0 0 1em; }
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap;
}
:focus-visible {
  outline: 3px solid var(--crimson);
  outline-offset: 2px;
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--crimson);
  display: inline-flex;
  align-items: center;
  gap: .5em;
  margin-bottom: .9em;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--crimson);
  display: inline-block;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  padding: .85em 1.6em;
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--crimson);
  color: #fff;
  box-shadow: 0 8px 20px -8px rgba(200,39,61,.6);
}
.btn-primary:hover { background: var(--crimson-deep); }
.btn-outline {
  background: transparent;
  border-color: var(--teal);
  color: var(--teal-deep);
}
.btn-outline:hover { background: var(--bg-soft); }
.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.5);
}
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-block { width: 100%; justify-content: center; }
.btn[disabled] { opacity: .6; cursor: not-allowed; }

/* ---------- Topbar ---------- */
.topbar {
  background: var(--teal-deep);
  color: #cfe4e2;
  font-size: .82rem;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 8px;
  padding-bottom: 8px;
  gap: 12px;
  flex-wrap: wrap;
}
.topbar a { color: #cfe4e2; }
.topbar .emergency {
  color: #ffd9de;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: .4em;
}
.topbar .emergency svg { width: 14px; height: 14px; }
.topbar-links { display: flex; gap: 18px; align-items: center; }
.topbar-links span { opacity: .55; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--teal-deep);
}
.brand .mark { width: 34px; height: 34px; color: var(--crimson); }
.brand small {
  display: block;
  font-family: var(--font-body);
  font-size: .65rem;
  font-weight: 500;
  color: var(--ink-soft);
  letter-spacing: .04em;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle svg { width: 26px; height: 26px; color: var(--teal-deep); }
.main-nav ul {
  display: flex;
  gap: 30px;
  align-items: center;
}
.main-nav a {
  font-size: .95rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--teal-deep);
  border-color: var(--crimson);
}
.nav-cta { display: flex; align-items: center; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg-soft) 0%, #ffffff 75%);
}
.hero .container {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
  padding-top: 64px;
  padding-bottom: 64px;
}
.hero h1 {
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  color: var(--ink);
}
.hero h1 em {
  font-style: normal;
  color: var(--crimson);
}
.hero .lead {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 46ch;
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.hero-art {
  position: relative;
  background: var(--teal-deep);
  border-radius: var(--radius);
  padding: 28px;
  color: #fff;
  overflow: hidden;
}
.hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 0%, rgba(200,39,61,.35), transparent 55%);
}
.ekg-wrap {
  position: relative;
  z-index: 1;
}
.ekg-wrap svg { width: 100%; height: auto; display: block; }
.ekg-line {
  fill: none;
  stroke: var(--crimson);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw-ekg 2.6s ease-out forwards .3s infinite;
}
@keyframes draw-ekg {
  to { stroke-dashoffset: 0; }
}
.hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 22px;
}
.hero-stats .stat-value {
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: #fff;
}
.hero-stats .stat-label {
  font-size: .78rem;
  color: #b9d6d3;
  letter-spacing: .03em;
}

@media (prefers-reduced-motion: reduce) {
  .ekg-line { animation: none; stroke-dashoffset: 0; }
}

/* ---------- Section scaffolding ---------- */
.section { padding: 78px 0; }
.section-soft { background: var(--bg-soft); }
.section-head {
  max-width: 640px;
  margin: 0 auto 44px;
  text-align: center;
}
.section-head.left { margin-left: 0; text-align: left; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.section-head p { color: var(--ink-soft); }

/* EKG divider used between sections as the page's signature device */
.pulse-divider {
  display: block;
  width: 100%;
  height: 28px;
  margin: 0 auto;
}
.pulse-divider path {
  fill: none;
  stroke: var(--line);
  stroke-width: 2;
}
.pulse-divider .pulse-beat { stroke: var(--crimson); opacity: .55; }

/* ---------- Cards: departments ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}
.dept-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.dept-card:hover {
  box-shadow: 0 18px 40px -24px rgba(14,60,65,.35);
  transform: translateY(-3px);
  border-color: var(--teal);
}
.dept-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--bg-soft);
  color: var(--teal);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.dept-icon svg { width: 24px; height: 24px; }
.dept-card h3 { font-size: 1.15rem; margin-bottom: .4em; }
.dept-card p { color: var(--ink-soft); font-size: .95rem; margin-bottom: 1.2em; }
.dept-card .link-arrow {
  font-size: .88rem;
  font-weight: 600;
  color: var(--crimson);
  display: inline-flex;
  align-items: center;
  gap: .3em;
}

/* ---------- Why choose us ---------- */
.feature-list { display: grid; gap: 22px; }
.feature-item { display: flex; gap: 16px; }
.feature-item .num {
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--crimson);
  flex: none;
  width: 28px;
  padding-top: 3px;
}
.feature-item h4 { margin-bottom: .25em; font-size: 1.05rem; }
.feature-item p { color: var(--ink-soft); font-size: .94rem; margin: 0; }

/* ---------- Doctors ---------- */
.doctor-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow .2s ease, transform .2s ease;
}
.doctor-card:hover { box-shadow: 0 18px 40px -24px rgba(14,60,65,.35); transform: translateY(-3px); }
.doctor-avatar {
  height: 150px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-deep) 100%);
  color: #fff;
  font-family: var(--font-display);
  font-size: 2rem;
}
.doctor-body { padding: 20px; }
.doctor-body h3 { font-size: 1.05rem; margin-bottom: .15em; }
.doctor-body .degree { font-size: .85rem; color: var(--ink-soft); margin-bottom: .8em; }
.doctor-body .dept-tag {
  display: inline-block;
  font-size: .75rem;
  font-family: var(--font-mono);
  color: var(--teal-deep);
  background: var(--bg-soft);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: .8em;
}
.doctor-body .schedule {
  font-size: .85rem;
  color: var(--ink-soft);
  display: flex;
  gap: 6px;
  align-items: flex-start;
}
.doctor-body .schedule svg { width: 15px; height: 15px; flex: none; margin-top: 2px; color: var(--crimson); }

/* ---------- Testimonial ---------- */
.testimonial {
  background: var(--teal-deep);
  color: #fff;
  border-radius: var(--radius);
  padding: 48px;
  position: relative;
}
.testimonial blockquote {
  font-family: var(--font-display);
  font-size: 1.4rem;
  line-height: 1.5;
  margin: 0 0 20px;
}
.testimonial cite {
  font-style: normal;
  font-size: .9rem;
  color: #b9d6d3;
}

/* ---------- News ---------- */
.news-card {
  border-top: 3px solid var(--crimson);
  background: #fff;
  border: 1px solid var(--line);
  border-top: 3px solid var(--crimson);
  border-radius: var(--radius-sm);
  padding: 22px;
}
.news-card .date {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--teal);
  letter-spacing: .05em;
}
.news-card h4 { margin: .5em 0 .4em; font-size: 1.05rem; }
.news-card p { color: var(--ink-soft); font-size: .9rem; margin: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--crimson);
  color: #fff;
  border-radius: var(--radius);
  padding: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-band h3 { color: #fff; margin-bottom: .25em; font-size: 1.5rem; }
.cta-band p { margin: 0; color: #ffe1e5; }

/* ---------- Forms ---------- */
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--teal-deep);
}
.field .required { color: var(--crimson); }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: .8em 1em;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--ink);
  background: #fff;
  transition: border-color .15s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--teal);
  outline: none;
}
.field textarea { resize: vertical; min-height: 110px; }
.field-hint { font-size: .8rem; color: var(--ink-soft); margin-top: 4px; }
.field-error {
  font-size: .8rem;
  color: var(--crimson-deep);
  margin-top: 4px;
}
.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: var(--crimson);
}
.alert {
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-size: .95rem;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.alert svg { width: 20px; height: 20px; flex: none; margin-top: 2px; }
.alert-success { background: #e6f5ef; color: #136645; border: 1px solid #b9e3cf; }
.alert-error { background: #fdecee; color: var(--crimson-deep); border: 1px solid #f5c2c9; }

/* ---------- Info side cards (contact/appointment pages) ---------- */
.info-card {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 18px;
}
.info-card h4 { font-size: 1rem; margin-bottom: .8em; color: var(--teal-deep); }
.info-row { display: flex; gap: 12px; margin-bottom: 14px; align-items: flex-start; }
.info-row:last-child { margin-bottom: 0; }
.info-row svg { width: 20px; height: 20px; color: var(--crimson); flex: none; margin-top: 2px; }
.info-row .label { font-size: .8rem; color: var(--ink-soft); display: block; }
.info-row .value { font-weight: 600; font-size: .95rem; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: var(--teal-deep);
  color: #fff;
  padding: 56px 0 42px;
}
.page-hero .eyebrow { color: #ffb9c2; }
.page-hero .eyebrow::before { background: #ffb9c2; }
.page-hero h1 { color: #fff; font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: .3em; }
.page-hero p { color: #cfe4e2; max-width: 60ch; margin: 0; }
.breadcrumb {
  font-size: .85rem;
  color: #9cc3c0;
  margin-bottom: 14px;
}
.breadcrumb a { color: #cfe4e2; }
.breadcrumb span { margin: 0 6px; }

/* ---------- About page ---------- */
.about-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 50px;
  align-items: start;
}
.timeline { border-left: 2px solid var(--line); padding-left: 24px; }
.timeline-item { position: relative; padding-bottom: 28px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -29px; top: 4px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--crimson);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--crimson);
}
.timeline-item .year { font-family: var(--font-mono); font-size: .8rem; color: var(--teal); }
.timeline-item h4 { margin: .3em 0 .25em; font-size: 1rem; }
.timeline-item p { color: var(--ink-soft); font-size: .92rem; margin: 0; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: #c7d2d4;
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.site-footer h5 {
  color: #fff;
  font-family: var(--font-body);
  font-size: .85rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.site-footer .brand { color: #fff; }
.site-footer .brand small { color: #8fa2a6; }
.site-footer p.about-blurb { color: #9fb1b4; font-size: .92rem; max-width: 32ch; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #c7d2d4; font-size: .92rem; }
.footer-links a:hover { color: var(--crimson); }
.social-row { display: flex; gap: 10px; margin-top: 18px; }
.social-row a {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  display: flex; align-items: center; justify-content: center;
}
.social-row svg { width: 16px; height: 16px; }
.social-row a:hover { background: var(--crimson); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 0;
  font-size: .82rem;
  color: #8fa2a6;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom .demo-tag {
  color: #ffb9c2;
}

/* ---------- Demo banner ---------- */
.demo-banner {
  background: var(--gold);
  color: #2a2106;
  text-align: center;
  font-size: .82rem;
  padding: 7px 14px;
}

/* ---------- Misc page blocks ---------- */
.dept-detail-card {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  margin-bottom: 22px;
}
.dept-detail-card .dept-icon { margin-bottom: 0; flex: none; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero .container { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    inset: 0 0 0 30%;
    background: #fff;
    padding: 90px 28px 28px;
    transform: translateX(100%);
    transition: transform .25s ease;
    box-shadow: -10px 0 30px rgba(0,0,0,.1);
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: 18px; }
  .nav-cta { display: none; }
  .grid-3, .grid-2, .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; text-align: center; }
  .testimonial { padding: 30px; }
  .dept-detail-card { flex-direction: column; }
}