/* ═══════════════════════════════════════════════════════════════
   MODERN NAVIGATION — Expert UI/UX Design
   Inspired by: South Pole, Stripe, Linear
═══════════════════════════════════════════════════════════════ */

.nav-modern {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-modern.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

/* ── Brand ── */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  transition: opacity 0.2s;
  flex-shrink: 0;
}

.nav-brand:hover {
  opacity: 0.7;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #52b788 0%, #1a4a2e 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

.brand-content {
  display: flex;
  flex-direction: column;
  gap: 0;
  line-height: 1;
}

.brand-text {
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  font-size: 18px;
  color: #0a1f12;
  letter-spacing: -0.02em;
}

.brand-subtitle {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #52b788;
  text-transform: uppercase;
  margin-top: 2px;
}

/* ── Menu ── */
.nav-menu {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  position: relative;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: #4B5563;
  border-radius: 8px;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  cursor: pointer;
}

.nav-item:hover {
  color: #0a1f12;
  background: rgba(82, 183, 136, 0.08);
}

.nav-item.active {
  color: #0a1f12;
  background: rgba(82, 183, 136, 0.12);
}

/* ── Dropdown ── */
.nav-dropdown {
  position: relative;
}

.nav-trigger {
  cursor: pointer;
}

.nav-trigger svg {
  transition: transform 0.2s;
}

.nav-dropdown:hover .nav-trigger svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: white;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
  padding: 8px;
  min-width: 480px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.dropdown-section {
  padding: 8px;
}

.dropdown-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #9CA3AF;
  margin-bottom: 8px;
  padding: 0 12px;
}

.dropdown-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  border-radius: 8px;
  transition: all 0.15s;
  margin-bottom: 4px;
}

.dropdown-item:hover {
  background: rgba(82, 183, 136, 0.08);
}

.dropdown-item-icon {
  font-size: 20px;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(82, 183, 136, 0.1);
  border-radius: 6px;
}

.dropdown-item-title {
  font-size: 14px;
  font-weight: 600;
  color: #111827;
  margin-bottom: 2px;
}

.dropdown-item-desc {
  font-size: 12px;
  color: #6B7280;
  line-height: 1.4;
}

/* ── Actions ── */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.nav-btn {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.nav-btn-ghost {
  color: #4B5563;
  background: transparent;
}

.nav-btn-ghost:hover {
  color: #0a1f12;
  background: rgba(82, 183, 136, 0.08);
}

.nav-btn-primary {
  color: white;
  background: linear-gradient(135deg, #52b788 0%, #1a4a2e 100%);
  box-shadow: 0 1px 3px rgba(82, 183, 136, 0.3);
}

.nav-btn-primary:hover {
  box-shadow: 0 4px 12px rgba(82, 183, 136, 0.4);
  transform: translateY(-1px);
}

/* ── Mobile Burger ── */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 6px;
  border-radius: 6px;
  transition: background 0.2s;
}

.nav-burger:hover {
  background: rgba(82, 183, 136, 0.08);
}

.nav-burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: #4B5563;
  border-radius: 2px;
  transition: all 0.3s;
}

.nav-burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .nav-container {
    padding: 0 24px;
    gap: 24px;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  }

  .nav-menu.active {
    display: block;
  }

  .nav-group {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-item {
    width: 100%;
    justify-content: flex-start;
  }

  .nav-dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: all;
    display: none;
    grid-template-columns: 1fr;
    min-width: 0;
    margin-top: 8px;
    box-shadow: none;
    border: 1px solid rgba(0, 0, 0, 0.06);
  }

  .nav-dropdown:hover .nav-dropdown-menu {
    transform: none;
  }

  .nav-dropdown.active .nav-dropdown-menu {
    display: grid;
  }

  .nav-burger {
    display: flex;
  }

  .nav-actions {
    gap: 8px;
  }

  .nav-btn {
    padding: 8px 16px;
    font-size: 13px;
  }
}

@media (max-width: 640px) {
  .nav-container {
    padding: 0 16px;
    height: 64px;
  }

  .brand-text {
    font-size: 16px;
  }

  .brand-subtitle {
    font-size: 8px;
    letter-spacing: 0.1em;
  }

  .brand-icon {
    width: 32px;
    height: 32px;
  }

  .nav-btn-ghost {
    display: none;
  }
}

/* ── Scroll Behavior ── */
body {
  padding-top: 72px;
}

@media (max-width: 640px) {
  body {
    padding-top: 64px;
  }
}


/* ── Floating Action Button ── */
.fab-modern {
  position: fixed;
  bottom: 32px;
  right: 32px;
  left: auto;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  background: linear-gradient(135deg, #52b788 0%, #1a4a2e 100%);
  color: white;
  border-radius: 50px;
  font-weight: 600;
  font-size: 15px;
  box-shadow: 0 4px 20px rgba(82, 183, 136, 0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
}

.fab-modern.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.fab-modern:hover {
  box-shadow: 0 8px 30px rgba(82, 183, 136, 0.5);
  transform: translateY(-2px);
}

.fab-modern svg {
  flex-shrink: 0;
}


@media (max-width: 640px) {
  .fab-modern {
    bottom: 24px;
    right: 20px;
    left: auto;
    padding: 12px 20px;
    font-size: 14px;
  }

  .fab-modern span {
    display: none;
  }

  .fab-modern {
    width: 56px;
    height: 56px;
    padding: 0;
    justify-content: center;
    border-radius: 50%;
  }
}