/* Sai Clinic — professional ophthalmology layout */
:root {
  --color-primary: #0d4f6c;
  --color-primary-dark: #083a52;
  --color-accent: #c9a227;
  --color-text: #1a1a1a;
  --color-muted: #5c6670;
  --color-bg: #ffffff;
  --color-bg-soft: #f4f7f9;
  --color-border: #e2e8ee;
  --font-sans: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --shadow: 0 4px 24px rgba(13, 79, 108, 0.08);
  --radius: 8px;
  --max: 1200px;
  --header-h: 72px;
  --nav-break: 1180px;
  --space-section: clamp(2.5rem, 5vw, 3.5rem);
  --safe-inline: max(1rem, env(safe-area-inset-left, 0px));
  --safe-inline-end: max(1rem, env(safe-area-inset-right, 0px));
}

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

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

@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;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: clip;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  padding: 1rem 1.5rem;
  background: var(--color-primary);
  color: #fff;
}

.skip-link:focus {
  left: 0;
}

/* Top bar */
.top-bar {
  background: var(--color-primary-dark);
  color: #fff;
  font-size: 0.9rem;
}

.top-bar-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.5rem var(--safe-inline) 0.5rem var(--safe-inline-end);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

@media (max-width: 479px) {
  .top-bar-inner {
    justify-content: center;
    text-align: center;
  }

  .top-bar .btn {
    width: 100%;
    max-width: 280px;
    white-space: normal;
  }
}

.top-bar a {
  color: #fff;
}

.top-bar-phone {
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.35rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-accent);
  color: #1a1a1a;
}

.btn-primary:hover {
  background: #ddb82e;
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  box-shadow: 0 1px 0 var(--color-border);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.75rem var(--safe-inline) 0.75rem var(--safe-inline-end);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary);
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
  color: var(--color-primary-dark);
}

.logo-img {
  height: 40px;
  width: auto;
  max-width: min(200px, 52vw);
  flex-shrink: 0;
}

@media (min-width: 480px) {
  .logo-img {
    height: 44px;
  }
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

@media (min-width: 1180px) {
  .nav-desktop {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: calc(100% - 220px);
  }
}

.nav-item {
  position: relative;
}

.nav-link {
  padding: 0.5rem 0.75rem;
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link:hover,
.nav-item.is-open > .nav-link {
  background: var(--color-bg-soft);
  text-decoration: none;
}

.nav-chevron {
  font-size: 0.65rem;
  opacity: 0.7;
}

.submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  padding: 0.5rem 0;
  margin: 0;
  list-style: none;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.nav-item:hover .submenu,
.nav-item.is-open .submenu {
  display: block;
}

.submenu a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--color-text);
  font-size: 0.9rem;
  text-decoration: none;
}

.submenu a:hover {
  background: var(--color-bg-soft);
  text-decoration: none;
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--radius);
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

.menu-toggle:hover {
  background: var(--color-bg-soft);
}

@media (min-width: 1180px) {
  .menu-toggle {
    display: none;
  }
}

/* Mobile drawer */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  top: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.4);
}

.mobile-nav.is-open {
  display: block;
}

.mobile-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(360px, 92vw);
  height: 100%;
  background: #fff;
  overflow-y: auto;
  padding: 1rem max(1.25rem, env(safe-area-inset-right, 0px)) max(2rem, env(safe-area-inset-bottom, 0px)) 1.25rem;
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.12);
}

.mobile-accordion .mobile-direct {
  display: block;
  padding: 0.85rem 0;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
}

.mobile-accordion .mobile-direct:hover {
  text-decoration: none;
  color: var(--color-primary-dark);
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.close-menu {
  width: 44px;
  height: 44px;
  border: none;
  background: var(--color-bg-soft);
  border-radius: var(--radius);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--color-text);
}

.mobile-accordion {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-accordion > li {
  border-bottom: 1px solid var(--color-border);
}

.mobile-accordion button {
  width: 100%;
  text-align: left;
  padding: 0.85rem 0;
  border: none;
  background: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text);
}

.mobile-accordion .sub {
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0 0 0 0.75rem;
  display: none;
}

.mobile-accordion li.is-open .sub {
  display: block;
}

.mobile-accordion .sub a {
  display: block;
  padding: 0.4rem 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.mobile-cta {
  margin-top: 1.5rem;
}

.mobile-cta .btn {
  width: 100%;
}

/* Hero */
.hero {
  background: linear-gradient(160deg, var(--color-bg-soft) 0%, #e8f0f4 45%, var(--color-bg) 100%);
  padding: 3rem var(--safe-inline) 4rem var(--safe-inline-end);
}

.hero-compact {
  padding-bottom: 2rem;
}

.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.hero-inner.hero-split {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-inner.hero-split {
    grid-template-columns: 1fr minmax(260px, 42%);
  }
}

.hero-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 2.85rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-primary-dark);
  margin: 0 0 0.75rem;
}

.hero .tagline {
  font-size: 1.25rem;
  color: var(--color-muted);
  margin: 0 0 1.5rem;
  max-width: 36ch;
}

.hero-lead {
  font-size: 1.05rem;
  max-width: 65ch;
  margin: 0 0 1.75rem;
  color: var(--color-text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-actions-spaced {
  margin-top: 1.75rem;
}

/* Sections */
section {
  padding: var(--space-section) var(--safe-inline) var(--space-section) var(--safe-inline-end);
}

.home-main.home-main-compact .home-section {
  padding-top: 2.75rem;
  padding-bottom: 2.75rem;
}

.home-main.home-main-compact .hero.home-section {
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}

.home-main.home-main-compact .section-sub {
  margin-bottom: 2rem;
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  color: var(--color-primary-dark);
  margin: 0 0 0.5rem;
  text-align: center;
}

.section-sub {
  text-align: center;
  color: var(--color-muted);
  max-width: 52ch;
  margin: 0 auto 2.5rem;
}

.section-title-left {
  text-align: left;
  margin-bottom: 1rem;
}

.section-narrow {
  max-width: 720px;
}

.rich-text {
  color: var(--color-text);
  line-height: 1.8;
  font-size: 1rem;
}

.rich-text p {
  margin: 0 0 1rem;
}

.rich-text p:last-child {
  margin-bottom: 0;
}

.rich-text ul,
.rich-text ol {
  margin: 0 0 1rem;
  padding-left: 1.35rem;
}

.rich-text li {
  margin-bottom: 0.35rem;
}

.rich-text a {
  font-weight: 600;
}

.centered-action {
  text-align: center;
  margin-top: 2rem;
}

.bg-soft {
  background: var(--color-bg-soft);
}

/* Service grid */
.grid-4 {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 640px) {
  .grid-4.grid-count-1 {
    grid-template-columns: minmax(0, 360px);
    justify-content: center;
  }

  .grid-4.grid-count-2 {
    grid-template-columns: repeat(2, minmax(0, 320px));
    justify-content: center;
  }
}

.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  color: var(--color-primary);
}

.card p {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--color-muted);
}

.service-card-image {
  width: 100%;
  height: 100px;
  margin-bottom: 0.75rem;
  object-fit: cover;
  border-radius: calc(var(--radius) - 2px);
}

.card-link {
  font-weight: 600;
  font-size: 0.9rem;
}

/* CTA band */
.cta-band {
  background: linear-gradient(90deg, var(--color-primary), #156a8a);
  color: #fff;
  padding: 3rem var(--safe-inline) 3rem var(--safe-inline-end);
  text-align: center;
}

.cta-band h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 1rem;
}

.cta-band p {
  margin: 0 auto 1.5rem;
  max-width: 56ch;
  opacity: 0.95;
}

.cta-band .btn-primary {
  background: #fff;
  color: var(--color-primary-dark);
}

.cta-band .btn-primary:hover {
  background: var(--color-bg-soft);
}

/* Doctors */
.grid-3 {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 640px) {
  .grid-3.grid-count-1 {
    grid-template-columns: minmax(0, 360px);
    justify-content: center;
  }

  .grid-3.grid-count-2 {
    grid-template-columns: repeat(2, minmax(0, 320px));
    justify-content: center;
  }
}

.doctor-card {
  text-align: center;
}

.doctor-photo {
  width: 160px;
  height: 160px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid #fff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  background: var(--color-bg-soft);
}

.doctor-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.doctor-card h3 {
  margin: 0 0 0.25rem;
  font-size: 1.1rem;
}

.doctor-card .role {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 600;
  margin: 0 0 0.75rem;
}

.doctor-card p {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin: 0 0 1rem;
}

.doctor-card-body {
  padding: 1.5rem;
}

.doctor-name {
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
  color: var(--color-primary);
  font-weight: 600;
}

.doctor-role {
  margin: 0 0 1rem;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
}

.doctor-bio {
  margin: 0;
  color: var(--color-muted);
  line-height: 1.6;
  font-size: 0.95rem;
}

.doctor-photo.is-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.doctor-photo.is-placeholder span {
  color: #fff;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.empty-state {
  text-align: center;
  padding: 3rem;
}

.empty-state p {
  margin: 0;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.section-divider-top {
  text-align: center;
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 2px solid var(--color-border);
}

.section-divider-top h3 {
  margin: 0 0 1rem;
  color: var(--color-primary);
  font-size: 1.5rem;
}

.section-divider-top p {
  margin: 0 0 2rem;
  color: var(--color-muted);
}

/* Awards */
.awards {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 2rem 1.25rem;
  background: #fff;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.award-badge {
  text-align: center;
  padding: 1rem 1.5rem;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius);
  font-weight: 700;
  color: var(--color-primary-dark);
  font-size: 0.9rem;
}

/* Testimonials / reviews */
.quote-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .quote-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .quote-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .quote-grid.grid-count-1 {
    grid-template-columns: minmax(0, 460px);
    justify-content: center;
  }

  .quote-grid.grid-count-2 {
    grid-template-columns: repeat(2, minmax(0, 360px));
    justify-content: center;
  }
}

blockquote {
  margin: 0;
  padding: 1.25rem;
  background: #fff;
  border-radius: var(--radius);
  border-left: 4px solid var(--color-primary);
  font-size: 0.95rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

blockquote footer {
  margin-top: 0.75rem;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-primary);
}

.video-placeholder {
  aspect-ratio: 16 / 9;
  background: var(--color-primary-dark);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 1rem;
  overflow: hidden;
}

.video-thumb {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.video-thumb img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
}

.award-img {
  height: 72px;
  width: auto;
}

.form-error {
  background: #fde8e8;
  border: 1px solid #e53e3e;
  color: #742a2a;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.form-success {
  background: #e6ffed;
  border: 1px solid #2f855a;
  color: #22543d;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Blog */
.blog-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .blog-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .blog-list.grid-count-1 {
    grid-template-columns: minmax(0, 380px);
    justify-content: center;
  }

  .blog-list.grid-count-2 {
    grid-template-columns: repeat(2, minmax(0, 340px));
    justify-content: center;
  }
}

.blog-list li {
  padding: 1.25rem;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.blog-list .cat {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  font-weight: 700;
}

.blog-list h3 {
  margin: 0.35rem 0 0.5rem;
  font-size: 1.05rem;
}

.blog-list p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr 1.1fr;
    align-items: start;
  }
}

.contact-info p {
  margin: 0 0 0.75rem;
  color: var(--color-muted);
  overflow-wrap: anywhere;
}

.contact-info a {
  word-break: break-word;
}

.contact-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.contact-card > :last-child {
  margin-bottom: 0;
}

.contact-form label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  margin-bottom: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: 2px solid rgba(13, 79, 108, 0.2);
  outline-offset: 1px;
  border-color: var(--color-primary);
}

.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-form .hint {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: -0.5rem;
  margin-bottom: 1rem;
}

/* Footer */
.site-footer {
  background: var(--color-primary-dark);
  color: #e8eef2;
  padding: 3rem var(--safe-inline) max(1.5rem, env(safe-area-inset-bottom, 0px)) var(--safe-inline-end);
  font-size: 0.95rem;
}

.site-footer p {
  overflow-wrap: anywhere;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.site-footer a {
  color: #fff;
}

.site-footer h3 {
  color: #fff;
  font-size: 1rem;
  margin: 0 0 1rem;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-bottom {
  max-width: var(--max);
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.85;
}