/* CommEchoic Monochrome Sophisticated CSS */

/* 1. Root Variables for Monochrome Sophisticated Palette */
:root {
  --color-black: #111111;
  --color-white: #ffffff;
  --color-gray-900: #222326;
  --color-gray-800: #2d2e32;
  --color-gray-700: #44464a;
  --color-gray-600: #66686c;
  --color-gray-400: #b1b3b8;
  --color-gray-200: #e5e6ea;
  --color-gray-100: #f7f7fc;
  --color-primary: #1B365D;
  --color-secondary: #00A8A3;
  --color-accent: #f7f7fc;
  --color-shadow: rgba(0,0,0,0.08);
  --color-shadow-strong: rgba(0,0,0,0.18);
  --color-focus: #1B365D;
  --color-link: #1B365D;
  --color-link-hover: #00A8A3;
  --color-btn-bg: #111111;
  --color-btn-bg-hover: #1B365D;
  --color-btn-text: #fff;
  --color-btn-outline: #1B365D;
  --color-btn-outline-hover: #00A8A3;
  --color-cookie-bg: #222326;
  --color-cookie-text: #fff;
  --color-cookie-btn: #fff;
  --color-cookie-btn-bg: #1B365D;
  --color-cookie-btn-bg-hover: #00A8A3;
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 2px 12px var(--color-shadow);
  --shadow-strong: 0 4px 24px var(--color-shadow-strong);
  --font-display: 'Montserrat', Arial, Helvetica, sans-serif;
  --font-body: 'Open Sans', Arial, Helvetica, sans-serif;
}

/* 2. Reset & Base Styles */
html {
  box-sizing: border-box;
  font-size: 16px;
  scroll-behavior: smooth;
  background: var(--color-white);
}
*, *:before, *:after {
  box-sizing: inherit;
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-gray-900);
  background: var(--color-white);
  line-height: 1.7;
  min-height: 100vh;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus {
  color: var(--color-link-hover);
  outline: none;
}

/* 3. Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-black);
  margin-top: 0;
  margin-bottom: 0.5em;
  letter-spacing: -0.01em;
}
h1 {
  font-size: 2.5rem;
  line-height: 1.15;
  margin-bottom: 0.6em;
}
h2 {
  font-size: 2rem;
  line-height: 1.2;
  margin-bottom: 0.5em;
}
h3 {
  font-size: 1.35rem;
  line-height: 1.3;
  margin-bottom: 0.4em;
}
h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.3em;
}
p {
  margin-top: 0;
  margin-bottom: 1.1em;
  color: var(--color-gray-700);
  font-size: 1.05rem;
}
strong {
  color: var(--color-black);
  font-weight: 700;
}
ul, ol {
  margin: 0 0 1.2em 1.5em;
  padding: 0;
  color: var(--color-gray-700);
}
li {
  margin-bottom: 0.5em;
}

/* 4. Layout Containers */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
}
.content-wrapper {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* 5. Section Spacing */
section {
  margin-bottom: 60px;
  padding: 40px 0 0 0;
  background: none;
}
.section {
  margin-bottom: 60px;
  padding: 40px 20px;
}

/* 6. Flexbox Patterns */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  margin-bottom: 20px;
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 28px;
  min-width: 260px;
  flex: 1 1 320px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-strong);
  transform: translateY(-4px) scale(1.02);
}
.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;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 28px;
  background: var(--color-gray-100);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  min-width: 260px;
  flex: 1 1 320px;
  color: var(--color-black);
}
.testimonial-card p {
  color: var(--color-black);
  font-size: 1.1rem;
  font-style: italic;
  margin-bottom: 0.5em;
}
.testimonial-card span {
  color: var(--color-gray-700);
  font-size: 0.98rem;
  font-weight: 600;
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

/* 7. Feature Grid (for .feature-grid) */
.feature-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 24px;
}
.feature-grid > div, .feature-grid > .testimonial-card {
  flex: 1 1 260px;
  min-width: 260px;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px;
  margin-bottom: 20px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.feature-grid > div:hover, .feature-grid > .testimonial-card:hover {
  box-shadow: var(--shadow-strong);
  transform: translateY(-4px) scale(1.02);
}

/* 8. Buttons & CTAs */
.cta, .cta.primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  padding: 0.85em 2.2em;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), border var(--transition);
  margin-top: 12px;
  margin-bottom: 12px;
  box-shadow: 0 2px 8px var(--color-shadow);
  outline: none;
}
.cta {
  background: var(--color-white);
  color: var(--color-black);
  border: 2px solid var(--color-btn-outline);
}
.cta:hover, .cta:focus {
  background: var(--color-btn-outline-hover);
  color: var(--color-white);
  border-color: var(--color-btn-outline-hover);
  box-shadow: var(--shadow-strong);
}
.cta.primary {
  background: var(--color-btn-bg);
  color: var(--color-btn-text);
  border: 2px solid var(--color-btn-bg);
}
.cta.primary:hover, .cta.primary:focus {
  background: var(--color-btn-bg-hover);
  color: var(--color-white);
  border-color: var(--color-btn-bg-hover);
  box-shadow: var(--shadow-strong);
}

/* 9. Header & Navigation */
header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  box-shadow: 0 2px 8px var(--color-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
header .container {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  min-height: 72px;
}
header img {
  height: 44px;
  margin-right: 32px;
}
.main-nav {
  display: flex;
  gap: 28px;
  align-items: center;
}
.main-nav a {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-black);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
.main-nav a:hover, .main-nav a:focus {
  color: var(--color-link-hover);
  border-bottom: 2px solid var(--color-link-hover);
}
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-black);
  cursor: pointer;
  margin-left: 24px;
  transition: color var(--transition);
}
.mobile-menu-toggle:focus {
  color: var(--color-link-hover);
  outline: 2px solid var(--color-link-hover);
}

/* 10. 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-end;
  justify-content: flex-start;
  padding: 0;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(.4,0,.2,1);
  pointer-events: none;
  opacity: 0;
}
.mobile-menu.open {
  transform: translateX(0);
  pointer-events: auto;
  opacity: 1;
}
.mobile-menu-close {
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2.2rem;
  margin: 24px 32px 0 0;
  cursor: pointer;
  align-self: flex-end;
  transition: color var(--transition);
}
.mobile-menu-close:focus {
  color: var(--color-link-hover);
  outline: 2px solid var(--color-link-hover);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
  margin: 48px 0 0 48px;
}
.mobile-nav a {
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.mobile-nav a:hover, .mobile-nav a:focus {
  color: var(--color-link-hover);
  border-bottom: 2px solid var(--color-link-hover);
}

/* 11. Hero Section */
section:first-of-type {
  background: var(--color-gray-100);
  border-bottom: 1px solid var(--color-gray-200);
  padding-top: 56px;
  padding-bottom: 32px;
}
section:first-of-type h1 {
  color: var(--color-black);
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 0.5em;
  letter-spacing: -0.02em;
}
section:first-of-type p {
  color: var(--color-gray-700);
  font-size: 1.2rem;
  margin-bottom: 1.2em;
}

/* 12. Testimonial Slider (horizontal scroll on mobile) */
.testimonial-slider {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 8px;
}
.testimonial-slider::-webkit-scrollbar {
  height: 6px;
  background: var(--color-gray-200);
}
.testimonial-slider::-webkit-scrollbar-thumb {
  background: var(--color-gray-400);
  border-radius: 3px;
}

/* 13. Footer */
footer {
  background: var(--color-black);
  color: var(--color-gray-200);
  padding: 48px 0 24px 0;
  border-top: 1px solid var(--color-gray-200);
}
footer .container {
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-bottom: 12px;
}
.footer-nav a {
  color: var(--color-gray-200);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  transition: color var(--transition);
}
.footer-nav a:hover, .footer-nav a:focus {
  color: var(--color-link-hover);
}
.footer-contact p {
  color: var(--color-gray-400);
  font-size: 0.98rem;
  margin-bottom: 0.2em;
}
footer p:last-child {
  color: var(--color-gray-400);
  font-size: 0.95rem;
  margin-top: 16px;
}

/* 14. Cookie Consent Banner */
.cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: var(--color-cookie-bg);
  color: var(--color-cookie-text);
  z-index: 99999;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  box-shadow: 0 -2px 16px var(--color-shadow-strong);
  gap: 24px;
  font-size: 1.05rem;
  animation: cookie-slide-in 0.5s cubic-bezier(.4,0,.2,1);
}
@keyframes cookie-slide-in {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.cookie-banner .cookie-actions {
  display: flex;
  gap: 16px;
}
.cookie-banner button {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius);
  border: none;
  padding: 0.7em 1.7em;
  margin: 0;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}
.cookie-banner .accept {
  background: var(--color-cookie-btn-bg);
  color: var(--color-cookie-btn);
  border: 2px solid var(--color-cookie-btn-bg);
}
.cookie-banner .accept:hover, .cookie-banner .accept:focus {
  background: var(--color-cookie-btn-bg-hover);
  border-color: var(--color-cookie-btn-bg-hover);
  color: var(--color-white);
}
.cookie-banner .reject {
  background: transparent;
  color: var(--color-cookie-btn);
  border: 2px solid var(--color-cookie-btn-bg);
}
.cookie-banner .reject:hover, .cookie-banner .reject:focus {
  background: var(--color-cookie-btn-bg-hover);
  color: var(--color-white);
  border-color: var(--color-cookie-btn-bg-hover);
}
.cookie-banner .settings {
  background: var(--color-gray-700);
  color: var(--color-white);
  border: 2px solid var(--color-gray-700);
}
.cookie-banner .settings:hover, .cookie-banner .settings:focus {
  background: var(--color-cookie-btn-bg-hover);
  border-color: var(--color-cookie-btn-bg-hover);
  color: var(--color-white);
}

/* 15. Cookie Preferences Modal */
.cookie-modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(17,17,17,0.82);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(.4,0,.2,1);
}
.cookie-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal {
  background: var(--color-white);
  color: var(--color-black);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-strong);
  padding: 40px 32px 32px 32px;
  min-width: 320px;
  max-width: 95vw;
  display: flex;
  flex-direction: column;
  gap: 24px;
  animation: modal-fade-in 0.4s cubic-bezier(.4,0,.2,1);
  position: relative;
}
@keyframes modal-fade-in {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.cookie-modal h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5em;
}
.cookie-modal .cookie-category {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}
.cookie-modal .cookie-category label {
  font-size: 1.05rem;
  color: var(--color-gray-900);
  font-weight: 600;
}
.cookie-modal .cookie-category input[type="checkbox"] {
  accent-color: var(--color-primary);
  width: 20px;
  height: 20px;
}
.cookie-modal .cookie-category input[disabled] {
  accent-color: var(--color-gray-400);
  cursor: not-allowed;
}
.cookie-modal .modal-actions {
  display: flex;
  gap: 16px;
  margin-top: 16px;
}
.cookie-modal .close-modal {
  position: absolute;
  top: 18px;
  right: 18px;
  background: none;
  border: none;
  font-size: 1.7rem;
  color: var(--color-gray-700);
  cursor: pointer;
  transition: color var(--transition);
}
.cookie-modal .close-modal:hover, .cookie-modal .close-modal:focus {
  color: var(--color-link-hover);
}

/* 16. Forms (if any) */
input, textarea, select {
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1.5px solid var(--color-gray-400);
  border-radius: var(--radius);
  padding: 0.7em 1em;
  background: var(--color-gray-100);
  color: var(--color-black);
  margin-bottom: 1em;
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, textarea:focus, select:focus {
  border-color: var(--color-focus);
  box-shadow: 0 0 0 2px var(--color-focus);
  outline: none;
}

/* 17. Miscellaneous */
::-webkit-input-placeholder { color: var(--color-gray-600); }
::-moz-placeholder { color: var(--color-gray-600); }
:-ms-input-placeholder { color: var(--color-gray-600); }
::placeholder { color: var(--color-gray-600); }

hr {
  border: none;
  border-top: 1px solid var(--color-gray-200);
  margin: 32px 0;
}

/* 18. Responsive Design */
@media (max-width: 1024px) {
  .container {
    max-width: 960px;
  }
  .feature-grid {
    gap: 18px;
  }
}
@media (max-width: 900px) {
  .container {
    max-width: 720px;
  }
  .feature-grid > div, .feature-grid > .testimonial-card {
    min-width: 220px;
    padding: 20px 14px;
  }
}
@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  .container {
    max-width: 98vw;
    padding: 0 10px;
  }
  .main-nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .feature-grid, .testimonial-slider, .card-container, .content-grid {
    flex-direction: column;
    gap: 20px;
  }
  .feature-grid > div, .feature-grid > .testimonial-card {
    min-width: 0;
    width: 100%;
    margin-bottom: 20px;
  }
  .text-image-section {
    flex-direction: column;
    gap: 20px;
    align-items: flex-start;
  }
  header .container {
    flex-direction: row;
    padding: 0 10px;
  }
  .cookie-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    padding: 18px 10px;
    font-size: 0.98rem;
  }
  .cookie-banner .cookie-actions {
    gap: 10px;
  }
  .cookie-modal {
    padding: 24px 10px 18px 10px;
    min-width: 0;
    width: 98vw;
  }
}
@media (max-width: 480px) {
  h1 {
    font-size: 1.7rem;
  }
  h2 {
    font-size: 1.25rem;
  }
  .cta, .cta.primary {
    font-size: 1rem;
    padding: 0.7em 1.2em;
  }
  .footer-nav {
    gap: 12px;
    flex-wrap: wrap;
  }
  .footer-contact p {
    font-size: 0.92rem;
  }
}

/* 19. Accessibility Focus States */
a:focus, button:focus, .cta:focus, .cta.primary:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* 20. Micro-interactions */
.card, .feature-grid > div, .testimonial-card {
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover, .feature-grid > div:hover, .testimonial-card:hover {
  box-shadow: var(--shadow-strong);
  transform: translateY(-2px) scale(1.01);
}
.cta:active, .cta.primary:active {
  transform: scale(0.97);
}

/* 21. Hide mobile menu when not open */
.mobile-menu {
  display: flex;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}
.mobile-menu.open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

/* 22. Utility Classes */
.hide {
  display: none !important;
}

/* 23. Prevent Overlapping */
.card, .feature-grid > div, .testimonial-card {
  margin-bottom: 20px;
}
section, .section {
  margin-bottom: 60px;
  padding-bottom: 0;
}

/* 24. Z-index for overlays */
.mobile-menu, .cookie-banner, .cookie-modal-overlay {
  z-index: 9999;
}

/* 25. Prevent absolute positioning for content cards */
/* Only decorative elements may use absolute positioning. */

/* END OF CSS */