/* =========================
   PersonalPilot Monochrome Sophisticated CSS
   ========================= */

/* 1. Root Variables & Base Styles */
:root {
  --color-primary: #1B3A4B;
  --color-secondary: #FFFFFF;
  --color-accent: #13736B;
  --color-black: #111111;
  --color-white: #fff;
  --color-gray-100: #F4F7FB;
  --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;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.08), 0 1.5px 6px rgba(0,0,0,0.04);
  --shadow-elevated: 0 8px 32px rgba(0,0,0,0.14);
  --radius: 12px;
  --transition: all 0.25s cubic-bezier(.4,0,.2,1);
  --font-display: 'Montserrat', Arial, Helvetica, sans-serif;
  --font-body: 'Open Sans', Arial, Helvetica, sans-serif;
}

html {
  box-sizing: border-box;
  font-size: 16px;
  scroll-behavior: smooth;
}
*, *:before, *:after {
  box-sizing: inherit;
}

body {
  background: var(--color-white);
  color: var(--color-black);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0;
  min-height: 100vh;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-primary);
  margin-top: 0;
  margin-bottom: 0.7em;
  font-weight: 700;
  letter-spacing: 0.01em;
}
h1 {
  font-size: 2.5rem;
  line-height: 1.15;
  color: var(--color-black);
}
h2 {
  font-size: 2rem;
  line-height: 1.2;
  color: var(--color-primary);
}
h3 {
  font-size: 1.3rem;
  line-height: 1.3;
  color: var(--color-black);
}
h4, h5, h6 {
  font-size: 1.1rem;
  color: var(--color-black);
}
p, ul, ol {
  margin-top: 0;
  margin-bottom: 1.2em;
  color: var(--color-gray-800);
}
strong {
  color: var(--color-black);
  font-weight: 700;
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover, a:focus {
  color: var(--color-accent);
  text-decoration: underline;
}

/* 2. Layout Containers */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.content-wrapper {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.section {
  margin-bottom: 60px;
  padding: 40px 20px;
  background: var(--color-secondary);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* 3. Flexbox Patterns */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
  position: relative;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: box-shadow 0.2s;
}
.card:hover {
  box-shadow: var(--shadow-elevated);
}

.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}

.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}

.testimonial-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: var(--color-gray-100);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
  color: var(--color-black);
  font-style: italic;
  transition: box-shadow 0.2s;
}
.testimonial-card:hover {
  box-shadow: var(--shadow-elevated);
}
.testimonial-card span {
  font-style: normal;
  font-weight: 600;
  color: var(--color-primary);
  margin-left: 10px;
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

/* 4. Custom Grids for Features, Services, Solutions, Blog Posts, Team */
.feature-grid, .service-list, .solution-grid, .blog-post-grid, .team-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 20px;
}
.feature-grid > div, .service-list > div, .solution-grid > div, .blog-post-grid > div, .team-grid > div {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 28px 24px;
  flex: 1 1 260px;
  min-width: 260px;
  max-width: 100%;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow 0.2s;
}
.feature-grid > div:hover, .service-list > div:hover, .solution-grid > div:hover, .blog-post-grid > div:hover, .team-grid > div:hover {
  box-shadow: var(--shadow-elevated);
}

/* 5. Header & Navigation */
header {
  background: var(--color-white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  position: sticky;
  top: 0;
  z-index: 100;
}
header .container {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 0;
  min-height: 72px;
}
header img {
  height: 44px;
  width: auto;
}
nav {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 24px;
}
nav a {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
  color: var(--color-primary);
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  position: relative;
}
nav a:hover, nav a:focus {
  color: var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
}
nav a.cta {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 24px;
  padding: 8px 24px;
  margin-left: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border: none;
  box-shadow: 0 2px 8px rgba(27,58,75,0.08);
  transition: var(--transition);
}
nav a.cta:hover, nav a.cta:focus {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(27,58,75,0.12);
}

/* Hamburger Menu Button */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-primary);
  cursor: pointer;
  margin-left: 16px;
  transition: color 0.2s;
}
.mobile-menu-toggle:hover, .mobile-menu-toggle:focus {
  color: var(--color-accent);
}

/* 6. Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(17,17,17,0.96);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 0;
  transform: translateX(-100%);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.mobile-menu.open {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu-close {
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2.2rem;
  align-self: flex-end;
  margin: 24px 24px 0 0;
  cursor: pointer;
  transition: color 0.2s;
}
.mobile-menu-close:hover, .mobile-menu-close:focus {
  color: var(--color-accent);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 28px;
  width: 100%;
  align-items: flex-start;
  margin-top: 40px;
  padding-left: 40px;
}
.mobile-nav a {
  color: var(--color-white);
  font-size: 1.3rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: color 0.2s;
  border-bottom: 2px solid transparent;
  padding-bottom: 4px;
}
.mobile-nav a:hover, .mobile-nav a:focus {
  color: var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
}

/* 7. Footer */
footer {
  background: var(--color-gray-100);
  color: var(--color-black);
  padding: 40px 0 0 0;
  margin-top: 60px;
  border-top: 1px solid var(--color-gray-200);
}
footer .container {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 40px;
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: 32px;
}
footer nav {
  flex-direction: column;
  gap: 12px;
}
footer nav a {
  color: var(--color-primary);
  font-size: 1rem;
  font-family: var(--font-display);
  font-weight: 500;
  transition: color 0.2s;
}
footer nav a:hover, footer nav a:focus {
  color: var(--color-accent);
}
.footer-contact {
  font-size: 0.98rem;
  color: var(--color-gray-700);
  line-height: 1.6;
}
.newsletter-signup {
  font-size: 1rem;
  color: var(--color-gray-700);
  margin-top: 12px;
}

/* 8. Buttons & CTA */
.cta, .btn, button, input[type="submit"] {
  background: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 700;
  border: none;
  border-radius: 24px;
  padding: 12px 32px;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(27,58,75,0.08);
  transition: var(--transition);
  letter-spacing: 0.02em;
  display: inline-block;
  margin-top: 8px;
}
.cta:hover, .btn:hover, button:hover, input[type="submit"]:hover,
.cta:focus, .btn:focus, button:focus, input[type="submit"]:focus {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(27,58,75,0.12);
  outline: none;
}

/* 9. Lists */
ul, ol {
  padding-left: 1.3em;
  margin-bottom: 1.2em;
}
ul li, ol li {
  margin-bottom: 0.5em;
  color: var(--color-gray-800);
  font-size: 1rem;
}

/* 10. Miscellaneous */
.categories-filter {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
}
.categories-filter span {
  font-weight: 600;
  color: var(--color-primary);
}
.categories-filter a {
  background: var(--color-gray-200);
  color: var(--color-primary);
  border-radius: 16px;
  padding: 4px 16px;
  font-size: 0.98rem;
  font-family: var(--font-display);
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}
.categories-filter a:hover, .categories-filter a:focus {
  background: var(--color-primary);
  color: var(--color-white);
}

/* 11. Cookie Consent Banner */
.cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: var(--color-black);
  color: var(--color-white);
  padding: 24px 20px;
  z-index: 99999;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 32px;
  box-shadow: 0 -2px 16px rgba(0,0,0,0.18);
  opacity: 0;
  pointer-events: none;
  transform: translateY(100%);
  transition: var(--transition);
}
.cookie-banner.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.cookie-banner p {
  margin: 0;
  color: var(--color-white);
  font-size: 1rem;
}
.cookie-banner .cookie-btns {
  display: flex;
  flex-direction: row;
  gap: 16px;
}
.cookie-banner button {
  background: var(--color-white);
  color: var(--color-black);
  border: none;
  border-radius: 20px;
  padding: 8px 22px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  margin: 0;
}
.cookie-banner button.accept {
  background: var(--color-accent);
  color: var(--color-white);
}
.cookie-banner button.accept:hover, .cookie-banner button.accept:focus {
  background: var(--color-primary);
}
.cookie-banner button.reject {
  background: var(--color-gray-200);
  color: var(--color-black);
}
.cookie-banner button.reject:hover, .cookie-banner button.reject:focus {
  background: var(--color-gray-400);
}
.cookie-banner button.settings {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid var(--color-white);
}
.cookie-banner button.settings:hover, .cookie-banner button.settings:focus {
  background: var(--color-white);
  color: var(--color-black);
}

/* Cookie Modal */
.cookie-modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(17,17,17,0.85);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.cookie-modal-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal {
  background: var(--color-white);
  color: var(--color-black);
  border-radius: var(--radius);
  box-shadow: var(--shadow-elevated);
  padding: 36px 32px 28px 32px;
  max-width: 420px;
  width: 90vw;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
  animation: fadeInModal 0.3s cubic-bezier(.4,0,.2,1);
}
@keyframes fadeInModal {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
.cookie-modal h2 {
  font-size: 1.4rem;
  margin-bottom: 0.5em;
  color: var(--color-primary);
}
.cookie-modal .cookie-category {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.cookie-modal .cookie-category label {
  font-size: 1rem;
  color: var(--color-black);
  font-weight: 500;
}
.cookie-modal .cookie-category input[type="checkbox"] {
  accent-color: var(--color-accent);
  width: 20px;
  height: 20px;
}
.cookie-modal .cookie-category input[disabled] {
  opacity: 0.6;
}
.cookie-modal .cookie-modal-actions {
  display: flex;
  flex-direction: row;
  gap: 16px;
  margin-top: 12px;
}
.cookie-modal .close-modal {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-gray-500);
  cursor: pointer;
  transition: color 0.2s;
}
.cookie-modal .close-modal:hover, .cookie-modal .close-modal:focus {
  color: var(--color-accent);
}

/* 12. Responsive Design */
@media (max-width: 1024px) {
  .container {
    max-width: 900px;
  }
  .feature-grid > div, .service-list > div, .solution-grid > div, .blog-post-grid > div, .team-grid > div {
    min-width: 220px;
    padding: 22px 14px;
  }
  footer .container {
    gap: 24px;
  }
}
@media (max-width: 900px) {
  .container {
    max-width: 98vw;
    padding: 0 10px;
  }
  .feature-grid, .service-list, .solution-grid, .blog-post-grid, .team-grid {
    gap: 16px;
  }
}
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  header .container {
    flex-direction: row;
    gap: 0;
    padding: 0 10px;
  }
  nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .section {
    padding: 28px 8px;
    margin-bottom: 36px;
  }
  .feature-grid, .service-list, .solution-grid, .blog-post-grid, .team-grid {
    flex-direction: column;
    gap: 16px;
  }
  .feature-grid > div, .service-list > div, .solution-grid > div, .blog-post-grid > div, .team-grid > div {
    min-width: 0;
    width: 100%;
    padding: 18px 10px;
  }
  .content-grid {
    flex-direction: column;
    gap: 16px;
  }
  .text-image-section {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .testimonial-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 16px;
  }
  footer .container {
    flex-direction: column;
    gap: 20px;
    padding-bottom: 18px;
  }
  .cookie-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    padding: 18px 10px;
  }
  .cookie-modal {
    padding: 22px 10px 18px 10px;
    max-width: 98vw;
  }
}
@media (max-width: 480px) {
  h1 {
    font-size: 1.6rem;
  }
  h2 {
    font-size: 1.2rem;
  }
  .cta, .btn, button, input[type="submit"] {
    font-size: 1rem;
    padding: 10px 18px;
  }
}

/* 13. Utility Classes */
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-2 { margin-top: 12px !important; }
.mb-2 { margin-bottom: 12px !important; }

/* 14. Micro-interactions */
.card, .feature-grid > div, .service-list > div, .solution-grid > div, .blog-post-grid > div, .team-grid > div, .testimonial-card {
  transition: box-shadow 0.2s, transform 0.18s;
}
.card:hover, .feature-grid > div:hover, .service-list > div:hover, .solution-grid > div:hover, .blog-post-grid > div:hover, .team-grid > div:hover, .testimonial-card:hover {
  transform: translateY(-4px) scale(1.015);
  box-shadow: var(--shadow-elevated);
}
.cta:active, .btn:active, button:active, input[type="submit"]:active {
  transform: scale(0.97);
}

/* 15. Accessibility */
:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* 16. Hide mobile menu when not open */
.mobile-menu {
  visibility: hidden;
}
.mobile-menu.open {
  visibility: visible;
}

/* 17. Prevent content overlap */
main, .section, .card, .testimonial-card, .feature-grid > div, .service-list > div, .solution-grid > div, .blog-post-grid > div, .team-grid > div {
  z-index: 1;
}

/* 18. Prevent absolute positioning for content cards (only for decorative elements) */
/* No absolute positioning used for content cards */

/* 19. Ensure proper z-index stacking for overlays */
.mobile-menu, .cookie-banner, .cookie-modal-overlay {
  z-index: 9999;
}

/* 20. Hide scroll on body when mobile menu or cookie modal open (to be toggled via JS) */
body.menu-open, body.cookie-modal-open {
  overflow: hidden;
}