/* ==========================================================================
   45Square Shared Components
   Navigation, mega menu, footer, buttons, cards, form elements
   ========================================================================== */

/* ==========================================================================
   Navigation
   ========================================================================== */

.site-nav {
  position: fixed;
  top: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  width: 92%;
  max-width: 1100px;
  height: var(--nav-height);
  padding: 0 var(--space-2);
  z-index: 1000;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
  transition: all var(--duration-normal) var(--ease-out);
}

.site-nav.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  transform: translateX(-50%) translateY(-2px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--fs-sm);
  color: white;
}

/* Desktop menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: var(--accent-subtle);
}

.nav-link svg {
  width: 14px;
  height: 14px;
  opacity: 0.5;
  transition: transform var(--duration-fast) var(--ease-out);
}

.nav-item.open .nav-link svg {
  transform: rotate(180deg);
}

/* Nav CTA */
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-6);
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-on-accent);
  background: var(--accent);
  border-radius: var(--radius-full);
  transition: background var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

/* ==========================================================================
   Mega Menu Dropdown
   ========================================================================== */

.mega-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 50%;
  transform: translateX(-50%);
  min-width: 480px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(8px);
  transition: opacity var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out),
    visibility var(--duration-normal);
  box-shadow: var(--shadow-lg);
}

.nav-item.open .mega-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mega-dropdown.compact {
  min-width: 200px;
  padding: var(--space-4);
}

.mega-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.mega-col-heading {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--border-subtle);
}

.mega-link {
  display: block;
  padding: var(--space-2) var(--space-3);
  margin: 0 calc(-1 * var(--space-3));
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out);
  text-decoration: none;
}

.mega-link:hover {
  color: var(--text-primary);
  background: var(--accent-subtle);
}

.mega-link-desc {
  display: block;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-top: 2px;
}

.mega-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
}

.mega-footer a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: gap var(--duration-fast) var(--ease-out);
}

.mega-footer a:hover {
  gap: var(--space-3);
}

/* Compact dropdown (Company) */
.mega-dropdown.compact .mega-link {
  padding: var(--space-3) var(--space-4);
  margin: 0 calc(-1 * var(--space-4));
}

/* ==========================================================================
   Mobile Navigation
   ========================================================================== */

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(360px, 85vw);
    height: 100vh;
    background: var(--bg-surface);
    border-left: 1px solid var(--border-subtle);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-16) var(--space-6) var(--space-6);
    transition: right var(--duration-slow) var(--ease-out);
    overflow-y: auto;
    z-index: 999;
  }

  .nav-menu.open {
    right: 0;
  }

  .nav-link {
    padding: var(--space-4) 0;
    font-size: var(--fs-base);
    border-bottom: 1px solid var(--border-subtle);
    border-radius: 0;
  }

  .nav-link:hover {
    background: transparent;
  }

  .mega-dropdown {
    position: static;
    transform: none;
    min-width: unset;
    border: none;
    border-radius: 0;
    padding: 0 0 var(--space-4) var(--space-4);
    background: transparent;
    box-shadow: none;
    display: none;
  }

  .nav-item.open .mega-dropdown {
    display: block;
    transform: none;
  }

  .mega-cols {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .mega-link {
    margin: 0;
    padding: var(--space-2) 0;
  }

  .nav-cta {
    margin-top: var(--space-6);
    text-align: center;
    justify-content: center;
    padding: var(--space-4) var(--space-6);
  }

  /* Overlay */
  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--duration-slow) var(--ease-out);
  }

  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--duration-fast) var(--ease-out);
}

.btn-primary {
  color: var(--text-on-accent);
  background: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}

.btn-ghost {
  color: var(--text-primary);
  background: transparent;
  border: 1px solid var(--border-default);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-subtle);
}

.btn-lg {
  padding: var(--space-4) var(--space-10);
  font-size: var(--fs-base);
}

.btn svg {
  width: 16px;
  height: 16px;
}

/* ==========================================================================
   Cards
   ========================================================================== */

/* Standard card */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
}

.card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-subtle);
  border-radius: var(--radius-md);
  color: var(--accent);
  margin-bottom: var(--space-5);
}

.card-icon svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  margin-bottom: var(--space-3);
}

.card p {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--accent);
  transition: gap var(--duration-fast) var(--ease-out);
}

.card-link:hover {
  gap: var(--space-3);
}

.card-link svg {
  width: 14px;
  height: 14px;
}

/* Feature card (larger, with highlight border) */
.card-feature {
  position: relative;
  overflow: hidden;
}

.card-feature::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.card-feature:hover::before {
  opacity: 1;
}

/* Metric card */
.card-metric {
  text-align: center;
  padding: var(--space-6);
}

.card-metric .metric-value {
  font-family: var(--font-heading);
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.card-metric .metric-value.highlight {
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.card-metric .metric-label {
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

/* ==========================================================================
   Tags / Pills
   ========================================================================== */

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
}

.tag-accent {
  color: var(--accent);
  background: var(--accent-subtle);
  border-color: var(--accent-glow);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ==========================================================================
   Testimonial
   ========================================================================== */

.testimonial-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-10);
}

.testimonial-quote {
  font-size: var(--fs-md);
  font-style: italic;
  color: var(--text-primary);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-8);
  position: relative;
  padding-left: var(--space-6);
  border-left: 3px solid var(--accent);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-sm);
  color: white;
  flex-shrink: 0;
}

.testimonial-name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-base);
  color: var(--text-primary);
}

.testimonial-role {
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

/* ==========================================================================
   Form Elements
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-base);
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23556070' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 6l3.5 4 3.5-4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-10);
}

/* ==========================================================================
   CTA Band
   ========================================================================== */

.cta-band {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-16) 0;
  text-align: center;
}

.cta-band h2 {
  margin-bottom: var(--space-6);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--bg-base);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer-brand p {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-top: var(--space-4);
  max-width: 280px;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-5);
}

.footer-links a {
  display: block;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  padding: var(--space-1) 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-subtle);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: var(--space-4);
}

.footer-social {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  transition: color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out);
}

.footer-social:hover {
  color: var(--text-primary);
  border-color: var(--border-active);
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

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

/* ==========================================================================
   Page Transition
   ========================================================================== */

.page-content {
  padding-top: var(--nav-height);
}