/* AI4AgedCare - Styles */
/* Color Palette: Teal #0891B2, Light Green #F0FDF4, Dark #1E293B */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #0891B2;
  --primary-dark: #0E7490;
  --primary-light: #67E8F9;
  --accent-bg: #F0FDF4;
  --dark: #1E293B;
  --text: #334155;
  --text-light: #64748B;
  --white: #FFFFFF;
  --border: #E2E8F0;
  --success: #10B981;
  --warm: #F59E0B;
  --radius: 12px;
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--white);
}

img { max-width: 100%; height: auto; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--primary-dark); }

/* ---- Layout ---- */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--accent-bg);
}

.section-dark {
  background: var(--dark);
  color: var(--white);
}

.section-dark .section-subtitle {
  color: #94A3B8;
}

/* ---- Typography ---- */
h1, h2, h3, h4 {
  color: var(--dark);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.25rem); }
h3 { font-size: 1.25rem; }

.section-title {
  text-align: center;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  max-width: 640px;
  margin: 0 auto 3rem;
  font-size: 1.1rem;
}

.section-dark h2,
.section-dark h3 {
  color: var(--white);
}

/* ---- Header ---- */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span { color: var(--primary); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--dark);
  padding: 0.25rem;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.main-nav a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--primary);
}

.nav-cta {
  background: var(--primary) !important;
  color: var(--white) !important;
  padding: 0.55rem 1.25rem;
  border-radius: 8px;
  font-weight: 600 !important;
  transition: background 0.2s !important;
}

.nav-cta:hover {
  background: var(--primary-dark) !important;
  color: var(--white) !important;
}

/* ---- Hero ---- */
.hero {
  padding: 6rem 0 5rem;
  background: linear-gradient(135deg, #F0FDF4 0%, #ECFEFF 50%, #F0F9FF 100%);
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(8,145,178,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  max-width: 720px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  background: rgba(8,145,178,0.1);
  color: var(--primary);
  padding: 0.35rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.25rem;
}

.hero h1 em {
  font-style: normal;
  color: var(--primary);
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-light);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.hero-phone {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 600;
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 0.8rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--white);
}

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

.btn-white {
  background: var(--white);
  color: var(--primary);
}
.btn-white:hover {
  background: #F0FDF4;
  color: var(--primary-dark);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: 1.05rem;
}

/* ---- Cards ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 56px;
  height: 56px;
  background: rgba(8,145,178,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--primary);
}

.card h3 {
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.card-link {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.card-link::after {
  content: '→';
}

/* ---- Stats ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.section-dark .stat-item h3 {
  color: var(--primary-light);
}

.stat-item p {
  color: var(--text-light);
  font-size: 0.95rem;
}

.section-dark .stat-item p {
  color: #94A3B8;
}

/* ---- Testimonials ---- */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.testimonial {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.testimonial-stars {
  color: var(--warm);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.testimonial blockquote {
  font-style: italic;
  color: var(--text);
  margin-bottom: 1.25rem;
  line-height: 1.7;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary);
  font-size: 0.9rem;
}

.testimonial-name {
  font-weight: 600;
  color: var(--dark);
}

.testimonial-role {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* ---- Solutions Detail (solutions.html) ---- */
.solution-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 4rem 0;
  border-bottom: 1px solid var(--border);
}

.solution-detail:last-child {
  border-bottom: none;
}

.solution-detail.reverse {
  direction: rtl;
}

.solution-detail.reverse > * {
  direction: ltr;
}

.solution-number {
  font-size: 3.5rem;
  font-weight: 800;
  color: rgba(8,145,178,0.12);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.solution-detail h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.solution-detail p {
  margin-bottom: 1.25rem;
  color: var(--text-light);
}

.feature-list {
  list-style: none;
  margin-bottom: 1.5rem;
}

.feature-list li {
  padding: 0.4rem 0;
  padding-left: 1.75rem;
  position: relative;
  color: var(--text);
}

.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.solution-visual {
  background: linear-gradient(135deg, var(--accent-bg) 0%, #ECFEFF 100%);
  border-radius: var(--radius);
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}

.solution-visual-icon {
  font-size: 6rem;
  opacity: 0.9;
}

.price-tag {
  display: inline-block;
  background: rgba(8,145,178,0.1);
  color: var(--primary-dark);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

/* ---- How It Works ---- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  text-align: center;
}

.step-item {
  padding: 1.5rem;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.step-item h3 {
  margin-bottom: 0.5rem;
}

.step-item p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* ---- About Page ---- */
.about-hero {
  padding: 5rem 0 3rem;
  background: linear-gradient(135deg, #F0FDF4 0%, #ECFEFF 100%);
  text-align: center;
}

.about-hero p {
  max-width: 640px;
  margin: 1rem auto 0;
  color: var(--text-light);
  font-size: 1.15rem;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.value-card {
  text-align: center;
  padding: 2rem 1.5rem;
}

.value-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.value-card h3 {
  margin-bottom: 0.75rem;
}

.value-card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

.about-content {
  max-width: 760px;
  margin: 0 auto;
}

.about-content p {
  margin-bottom: 1.25rem;
}

/* ---- Contact / Form ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info h3 {
  margin-bottom: 0.5rem;
}

.contact-info p {
  color: var(--text-light);
  margin-bottom: 2rem;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.contact-method-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(8,145,178,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-method strong {
  display: block;
  color: var(--dark);
}

.contact-method small {
  color: var(--text-light);
}

.form-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.form-card h3 {
  margin-bottom: 0.5rem;
}

.form-card > p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s;
  background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(8,145,178,0.1);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* ---- Compliance Banner ---- */
.compliance-banner {
  background: var(--accent-bg);
  border: 1px solid #BBF7D0;
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0;
}

.compliance-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.compliance-banner p {
  font-size: 0.95rem;
}

.compliance-banner strong {
  color: var(--dark);
}

/* ---- FAQ ---- */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--dark);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--primary);
  transition: transform 0.2s;
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item p {
  margin-top: 0.75rem;
  color: var(--text-light);
  padding-right: 2rem;
}

/* ---- CTA Banner ---- */
.cta-banner {
  text-align: center;
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
}

.cta-banner h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-banner p {
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin: 0 auto 2rem;
  font-size: 1.1rem;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Footer ---- */
.site-footer {
  background: var(--dark);
  color: #94A3B8;
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-col h4 {
  color: var(--white);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col a {
  color: #94A3B8;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

.footer-bottom a {
  color: #94A3B8;
}

.footer-bottom a:hover {
  color: var(--white);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 1rem;
  }

  .main-nav.open { display: block; }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .main-nav li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
  }

  .main-nav li:last-child { border-bottom: none; }

  .hero { padding: 3.5rem 0 3rem; }

  .solution-detail {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .solution-detail.reverse { direction: ltr; }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
}