:root {
  --sahay-blue: #004a8f;
  --sahay-light-blue: #e6f0ff;
  --sahay-orange: #ff7a00;
  --sahay-dark: #111827;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--sahay-dark);
  margin: 0;
  background: #ffffff;
}

/* Layout helpers */
.sahay-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.sahay-section {
  padding: 4rem 0;
}

@media (min-width: 992px) {
  .sahay-section {
    padding: 5rem 0;
  }
}

/* Navbar */
.sahay-navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  box-shadow: 0 1px 6px rgba(15, 23, 42, 0.06);
}

.sahay-navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.6rem 0;
}

.sahay-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: inherit;
}

.sahay-logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2563eb, #1e3a8a);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 800;
  font-size: 1.1rem;
}

.sahay-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.sahay-logo-text span {
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 0.98rem;
}

.sahay-logo-text small {
  font-size: 0.75rem;
  color: #6b7280;
}

.sahay-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.0rem;
  align-items: center;
  font-size: 0.9rem;
}

.sahay-nav-links a {
  text-decoration: none;
  color: #4b5563;
}

.sahay-nav-links a:hover {
  color: var(--sahay-blue);
}

.sahay-btn-nav {
  background: var(--sahay-blue);
  color: #ffffff !important;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
}

.sahay-btn-nav:hover {
  background: #013669;
}

/* Theme toggle button */
.sahay-theme-toggle {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  background: #f9fafb;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0;
}

.sahay-theme-toggle:hover {
  background: #e5e7eb;
}

/* Mobile menu toggle */
.sahay-menu-toggle {
  display: none;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  background: #f9fafb;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
}

.sahay-menu-toggle:hover {
  background: #e5e7eb;
}

/* Mobile drawer & overlay */
.sahay-mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 49;
}

.sahay-mobile-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.sahay-mobile-drawer {
  position: fixed;
  inset: 0 auto 0 0;
  width: 80vw;
  max-width: 280px;
  background: #ffffff;
  box-shadow: 4px 0 15px rgba(15, 23, 42, 0.35);
  transform: translateX(-100%);
  transition: transform 0.22s ease-out;
  z-index: 50;
  display: flex;
  flex-direction: column;
  padding: 0.9rem 1rem 1.25rem;
}

.sahay-mobile-drawer.is-open {
  transform: translateX(0);
}

.sahay-mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.sahay-mobile-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sahay-mobile-close {
  border: none;
  background: transparent;
  font-size: 1.2rem;
  cursor: pointer;
}

.sahay-mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.sahay-mobile-link {
  text-decoration: none;
  color: #111827;
  font-size: 0.95rem;
  padding: 0.35rem 0.1rem;
}

.sahay-mobile-link:hover {
  color: var(--sahay-blue);
}

.sahay-mobile-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sahay-btn-mobile-cta {
  flex: 1;
  text-align: center;
  text-decoration: none;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  border: none;
  background: var(--sahay-blue);
  color: #ffffff;
}

/* Responsive nav behavior */
@media (max-width: 767px) {
  .sahay-nav-links {
    display: none;
  }

  .sahay-menu-toggle {
    display: inline-flex;
  }
}

@media (min-width: 768px) {
  .sahay-menu-toggle {
    display: none;
  }

  .sahay-mobile-drawer,
  .sahay-mobile-overlay {
    display: none;
  }
}

/* Hero */
.sahay-hero {
  background: radial-gradient(circle at top left, #e0f2fe 0, #e6f0ff 40%, #ffffff 100%);
  padding-top: 3.5rem;
  padding-bottom: 3rem;
}

.sahay-grid-hero {
  display: grid;
  gap: 2rem;
}

@media (min-width: 992px) {
  .sahay-grid-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
  }
}

.sahay-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(37, 99, 235, 0.08);
  color: #1d4ed8;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.sahay-hero-title {
  font-size: clamp(2rem, 4vw, 2.7rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0.75rem 0;
}

.sahay-hero-subtitle {
  font-size: 1rem;
  color: #4b5563;
  max-width: 640px;
}

.sahay-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0 1.5rem;
}

.sahay-pill {
  display: inline-block;
  padding: 0.2rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.sahay-pill-blue {
  background: rgba(37, 99, 235, 0.08);
  color: #1d4ed8;
}

.sahay-pill-orange {
  background: rgba(249, 115, 22, 0.1);
  color: #ea580c;
}

.sahay-btn-primary,
.sahay-btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}

.sahay-btn-primary {
  background: var(--sahay-blue);
  color: #ffffff;
  border-color: var(--sahay-blue);
}

.sahay-btn-primary:hover {
  background: #013669;
  border-color: #013669;
}

.sahay-btn-outline {
  background: transparent;
  color: #1d4ed8;
  border-color: #cbd5f5;
}

.sahay-btn-outline:hover {
  background: #e0ecff;
}

/* Hero metrics */
.sahay-hero-metrics {
  border-radius: 1.5rem;
  background: #ffffff;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
  padding: 1.25rem;
}

.sahay-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.sahay-metric-card {
  border-radius: 1rem;
  border: 1px solid #e5e7eb;
  padding: 0.75rem;
}

.sahay-metric-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--sahay-blue);
}

.sahay-metric-label {
  font-size: 0.78rem;
  color: #6b7280;
}

/* Section headers */
.sahay-eyebrow {
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: #6b7280;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.sahay-section-title {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.sahay-section-text {
  font-size: 0.96rem;
  color: #4b5563;
}

.sahay-bg-light {
  background: #f9fafb;
}

/* Cards & grids */
.sahay-grid-2 {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 992px) {
  .sahay-grid-2 {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

.sahay-grid-3 {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .sahay-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.sahay-card {
  border-radius: 1.2rem;
  border: 1px solid #e5e7eb;
  background: #ffffff;
  padding: 1rem;
}

.sahay-card h5,
.sahay-card h6 {
  margin: 0 0 0.4rem;
}

.sahay-card ul {
  padding-left: 1.1rem;
  margin: 0;
}

.sahay-card ul li {
  font-size: 0.88rem;
  margin-bottom: 0.2rem;
}

/* Table */
.sahay-table-wrapper {
  margin-top: 1rem;
  border-radius: 1.2rem;
  overflow: hidden;
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
  background: #ffffff;
}

.sahay-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.sahay-table th,
.sahay-table td {
  padding: 0.55rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid #e5e7eb;
}

.sahay-table thead {
  background: #f3f4f6;
  font-weight: 600;
}

/* Founder layout */
.sahay-founder-right {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.sahay-founder-photo {
  width: 100%;
  max-width: 260px;
  border-radius: 1.2rem;
  object-fit: cover;
  display: block;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.28);
}

@media (min-width: 992px) {
  .sahay-founder-right {
    align-items: center;
  }
}

/* Faculty clusters */
.sahay-faculty-clusters {
  display: grid;
  gap: 2rem;
}

@media (min-width: 992px) {
  .sahay-faculty-clusters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.sahay-faculty-cluster {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.sahay-faculty-cluster-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #6b7280;
}

.sahay-faculty-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 576px) {
  .sahay-faculty-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.sahay-faculty-card {
  border-radius: 1.2rem;
  border: 1px solid #e5e7eb;
  background: #ffffff;
  padding: 0.9rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  height: 100%;
}

.sahay-faculty-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.12);
}

.sahay-faculty-name {
  margin: 0 0 0.1rem;
  font-size: 1rem;
  font-weight: 700;
}

.sahay-faculty-role {
  font-size: 0.86rem;
  font-weight: 600;
  color: #4b5563;
  margin-bottom: 0.35rem;
}

.sahay-faculty-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-bottom: 0.4rem;
}

.sahay-chip {
  font-size: 0.7rem;
  border-radius: 999px;
  padding: 0.12rem 0.55rem;
  background: #f3f4f6;
  color: #4b5563;
}

.sahay-faculty-points {
  padding-left: 1rem;
  margin: 0;
}

.sahay-faculty-points li {
  font-size: 0.8rem;
  color: #4b5563;
  margin-bottom: 0.2rem;
}

/* Icons for why integrated */
.sahay-why-icon {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: var(--sahay-light-blue);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 0.4rem;
}

/* Contact links */
.sahay-form-grid {
  display: grid;
  gap: 1rem;
}

/* Download links */
.sahay-download {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  text-decoration: none;
  color: #2563eb;
  margin-top: 0.35rem;
}

.sahay-download:hover {
  text-decoration: underline;
}

/* Footer */
.sahay-footer {
  border-top: 1px solid #e5e7eb;
  padding: 0.9rem 0;
  font-size: 0.8rem;
  color: #6b7280;
}

.sahay-footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: space-between;
}

/* ===================== */
/* DARK MODE OVERRIDES   */
/* ===================== */

body.dark-mode {
  background: #020617;
  color: #e5e7eb;
}

/* Navbar */
body.dark-mode .sahay-navbar {
  background: #020617;
  border-bottom-color: #1f2937;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.8);
}

body.dark-mode .sahay-logo-text small {
  color: #9ca3af;
}

body.dark-mode .sahay-nav-links a {
  color: #9ca3af;
}

body.dark-mode .sahay-nav-links a:hover {
  color: #ffffff;
}

body.dark-mode .sahay-btn-nav {
  background: #2563eb;
}

body.dark-mode .sahay-theme-toggle {
  background: #020617;
  border-color: #374151;
  color: #fbbf24;
}

body.dark-mode .sahay-theme-toggle:hover {
  background: #111827;
}

/* Hero */
body.dark-mode .sahay-hero {
  background: radial-gradient(circle at top left, #0f172a 0, #020617 40%, #000000 100%);
}

body.dark-mode .sahay-hero-subtitle {
  color: #d1d5db;
}

body.dark-mode .sahay-hero-badge {
  background: rgba(56, 189, 248, 0.12);
  color: #7dd3fc;
}

/* Cards, metrics, table wrappers */
body.dark-mode .sahay-card,
body.dark-mode .sahay-hero-metrics,
body.dark-mode .sahay-table-wrapper,
body.dark-mode .sahay-faculty-card {
  background: #020617;
  border-color: #1f2937;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.7);
}

body.dark-mode .sahay-metric-label,
body.dark-mode .sahay-section-text,
body.dark-mode .sahay-faculty-points li {
  color: #9ca3af;
}

/* Faculty chips */
body.dark-mode .sahay-chip {
  background: #111827;
  color: #e5e7eb;
}

/* Tables */
body.dark-mode .sahay-table {
  color: #e5e7eb;
}

body.dark-mode .sahay-table th,
body.dark-mode .sahay-table td {
  border-bottom-color: #1f2937;
}

body.dark-mode .sahay-table thead {
  background: #111827;
}

/* Background sections */
body.dark-mode .sahay-bg-light {
  background: #020617;
}

/* Why icons */
body.dark-mode .sahay-why-icon {
  background: #111827;
}

/* Founder photo */
body.dark-mode .sahay-founder-photo {
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.9);
  border: 1px solid #1f2937;
}

/* Mobile drawer dark */
body.dark-mode .sahay-mobile-drawer {
  background: #020617;
  border-right: 1px solid #1f2937;
}

body.dark-mode .sahay-mobile-link {
  color: #e5e7eb;
}

body.dark-mode .sahay-mobile-link:hover {
  color: #93c5fd;
}

/* Download links */
body.dark-mode .sahay-download {
  color: #93c5fd;
}

/* Footer */
body.dark-mode .sahay-footer {
  border-top-color: #1f2937;
  color: #9ca3af;
}