/* Hissab AI – Theme: White, Gray, Green
   Font: Plus Jakarta Sans (optimized for landing pages) */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400;1,600&display=swap');

:root {
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  --color-green-50: #ecfdf5;
  --color-green-100: #d1fae5;
  --color-green-200: #a7f3d0;
  --color-green-400: #34d399;
  --color-green-500: #10b981;
  --color-green-600: #059669;
  --color-green-700: #047857;
  --color-green-800: #065f46;
  --color-green-900: #064e3b;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --radius: 12px;
  --radius-lg: 16px;
}

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

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--color-gray-800);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

/* ----- Navbar ----- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--color-white);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.09);
  z-index: 1000;
  transition: box-shadow 0.2s ease, outline 0.2s ease;
}

.navbar:focus-within {
  outline: 2px solid var(--color-green-500);
  outline-offset: 0;
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.06), 0 0 0 2px var(--color-green-200);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
}

.logo {
  width: 65%;
}

.logo img {
  width: 20%;
  max-width: 160px;
  height: auto;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-gray-700);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color 0.2s ease, border-color 0.2s ease, border-width 0.2s ease;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}

.nav-links a:hover {
  color: var(--color-green-600);
  border-bottom-color: var(--color-green-500);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.menu-toggle span {
  width: 24px;
  height: 2.5px;
  background: var(--color-gray-700);
  border-radius: 2px;
  transition: 0.3s;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translateY(7px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-7px);
}

@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 58px;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    width: 220px;
    box-shadow: var(--shadow-lg);
    padding: 16px 0;
    display: none;
    border-radius: 0 0 var(--radius) var(--radius);
    border: 1px solid var(--color-gray-200);
  }

  .nav-links a {
    padding: 12px 24px;
    color: var(--color-gray-800);
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links.active {
    display: flex;
  }

  .logo img {
    width: 30%;
  }
}

/* ----- Buttons ----- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--color-green-600);
  color: var(--color-white);
  border: none;
  border-radius: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
}

.btn-primary:hover {
  background: var(--color-green-700);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 10px 22px;
  background: var(--color-white);
  color: var(--color-green-600);
  border: 2px solid var(--color-green-500);
  border-radius: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.btn-secondary:hover {
  background: var(--color-green-50);
  color: var(--color-green-700);
}

/* ----- Footer ----- */
.site-footer {
  background: var(--color-green-800);
  color: var(--color-green-100);
  padding: 2.5rem 24px 1.5rem;
}

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 2rem 2.5rem;
  margin-bottom: 2rem;
}

.footer-col h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-green-200);
  margin-bottom: 0.75rem;
}

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

.footer-col li { margin-bottom: 0.4rem; }

.footer-col a {
  color: var(--color-green-100);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

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

.site-footer .footer-copy {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-green-200);
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

/* Legacy footer nav (if still used) */
.site-footer nav {
  margin-bottom: 1rem;
}

.site-footer nav a {
  color: var(--color-green-100);
  margin: 0 1rem;
  text-decoration: none;
  font-weight: 500;
}

.site-footer nav a:hover {
  text-decoration: underline;
  color: var(--color-white);
}

.site-footer p {
  font-size: 0.875rem;
  color: var(--color-green-200);
}