/* ==========================================
   Zamba Pharma - Executive B2B UI/UX Styling
   ========================================== */

/* ------------------------------------------
   1. Buttons & CTAs
   ------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.65rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-teal-500);
  color: var(--color-text-inverse);
  box-shadow: 0 4px 14px rgba(0, 168, 135, 0.3);
  border: 1px solid transparent;
}

.btn-primary:hover {
  background-color: var(--color-teal-600);
  box-shadow: 0 8px 22px rgba(0, 168, 135, 0.4);
  transform: translateY(-2px);
  color: var(--color-text-inverse);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(0, 168, 135, 0.3);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-text-inverse);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.38);
  transform: translateY(-2px);
  color: var(--color-text-inverse);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary-800);
  border: 1.5px solid var(--color-primary-800);
}

.btn-outline:hover {
  background-color: var(--color-primary-800);
  color: var(--color-text-inverse);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.025rem;
}

/* ------------------------------------------
   2. Header & Sticky Navigation
   ------------------------------------------ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: all var(--transition-smooth);
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.85);
}

.site-header.scrolled {
  height: 72px;
  box-shadow: 0 4px 20px rgba(11, 31, 58, 0.08);
  background-color: rgba(255, 255, 255, 0.98);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-logo-img {
  height: 44px;
  width: 44px;
  object-fit: cover;
  border-radius: 50%;
  border: 1.5px solid rgba(0, 168, 135, 0.35);
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0, 168, 135, 0.15);
}

.brand-title {
  font-family: var(--font-family-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-primary-900);
  letter-spacing: -0.03em;
}

.brand-title span {
  color: var(--color-teal-500);
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-weight: 550;
  font-size: 0.95rem;
  color: var(--color-text-main);
  transition: color var(--transition-fast);
  padding: 0.5rem 0;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-teal-600);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-teal-500);
  border-radius: var(--radius-full);
}

/* Mobile Toggle Button */
.mobile-toggle {
  display: none;
  padding: 0.6rem;
  color: var(--color-primary-900);
  border-radius: var(--radius-sm);
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}

.mobile-toggle svg {
  width: 26px;
  height: 26px;
}

/* Mobile Drawer Navigation */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 380px;
  height: 100vh;
  background-color: var(--color-primary-900);
  z-index: 1001;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right var(--transition-smooth);
  box-shadow: -10px 0 35px rgba(0, 0, 0, 0.45);
}

.mobile-drawer.open {
  right: 0;
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(7, 23, 43, 0.65);
  backdrop-filter: blur(6px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.mobile-close {
  color: var(--color-text-inverse);
  padding: 0.4rem;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.15rem;
  font-weight: 600;
  display: block;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--color-teal-400);
}

/* ------------------------------------------
   3. Hero Section
   ------------------------------------------ */
.hero-section {
  padding-top: calc(var(--header-height) + var(--space-2xl));
  padding-bottom: var(--space-3xl);
  background-color: var(--color-primary-900);
  background-image: radial-gradient(circle at 82% 20%, rgba(0, 168, 135, 0.16) 0%, transparent 45%),
                    radial-gradient(circle at 10% 80%, rgba(2, 132, 199, 0.12) 0%, transparent 40%);
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  z-index: 2;
}

.hero-headline {
  color: var(--color-text-inverse);
  margin-bottom: 1.25rem;
  letter-spacing: -0.025em;
  font-size: clamp(1.75rem, 4vw, 3.25rem);
  line-height: 1.18;
  font-weight: 800;
}

.hero-subheadline {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: rgba(255, 255, 255, 0.84);
  line-height: 1.65;
  margin-bottom: 2.25rem;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.hero-visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 168, 135, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: var(--color-primary-800);
}

.hero-img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
}

.hero-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(7, 23, 43, 0.88) 100%);
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
}

.hero-tag {
  background: rgba(7, 23, 43, 0.85);
  backdrop-filter: blur(12px);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text-inverse);
  font-size: 0.875rem;
  font-weight: 500;
}

/* Target Customer Pills Bar */
.target-customers-strip {
  background-color: #091B33;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.25rem 0;
}

.target-strip-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 0.25rem;
}

.target-strip-inner::-webkit-scrollbar {
  display: none;
}

.target-label {
  font-size: 0.825rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-teal-400);
  font-weight: 700;
  white-space: nowrap;
}

.target-pills {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.target-pill {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.9);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.target-pill:hover {
  background: rgba(0, 168, 135, 0.15);
  border-color: rgba(0, 168, 135, 0.4);
  color: #FFFFFF;
}

/* ------------------------------------------
   4. About Section
   ------------------------------------------ */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.mission-vision-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.mv-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  padding: 1.75rem;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 10px rgba(11, 31, 58, 0.04);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.mv-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--color-teal-500);
}

.mv-card.vision::before {
  background-color: var(--color-primary-800);
}

.mv-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(11, 31, 58, 0.08);
  border-color: rgba(0, 168, 135, 0.3);
}

.mv-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-teal-100);
  color: var(--color-teal-700);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.mv-card.vision .mv-card-icon {
  background: var(--color-accent-light);
  color: var(--color-accent-blue);
}

.mv-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary-900);
}

.mv-card p {
  font-size: 0.95rem;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

.about-visual-box {
  background: linear-gradient(135deg, var(--color-primary-900), var(--color-primary-800));
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.about-stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.about-feature-item {
  display: flex;
  gap: 1.15rem;
  align-items: flex-start;
}

.feature-icon-circle {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(0, 168, 135, 0.18);
  border: 1px solid rgba(0, 168, 135, 0.35);
  color: var(--color-teal-400);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-text-block h4 {
  color: var(--color-text-inverse);
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
  font-weight: 600;
}

.feature-text-block p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.925rem;
  line-height: 1.5;
}

/* ------------------------------------------
   5. Services & Product Portfolio Sections
   ------------------------------------------ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(11, 31, 58, 0.04);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 30px rgba(11, 31, 58, 0.1);
  border-color: rgba(0, 168, 135, 0.35);
}

.service-img-wrapper {
  height: 230px;
  width: 100%;
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg-alt);
}

.service-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.service-card:hover .service-img {
  transform: scale(1.04);
}

.service-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-subtitle {
  font-size: 0.775rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-teal-600);
  font-weight: 700;
  margin-bottom: 0.45rem;
}

.service-title {
  font-size: 1.25rem;
  margin-bottom: 0.85rem;
  color: var(--color-primary-900);
  line-height: 1.3;
}

.service-description {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1.1rem;
}

.service-feature-point {
  font-size: 0.875rem;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 550;
}

.service-feature-point svg {
  color: var(--color-teal-500);
  flex-shrink: 0;
}

/* ------------------------------------------
   6. Value Proposition Section
   ------------------------------------------ */
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.value-card {
  background-color: var(--color-bg-surface);
  padding: 2.25rem 1.65rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  text-align: left;
  box-shadow: 0 2px 10px rgba(11, 31, 58, 0.03);
}

.value-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-teal-500);
  box-shadow: 0 12px 28px rgba(11, 31, 58, 0.08);
}

.value-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--color-teal-50);
  color: var(--color-teal-600);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
  border: 1px solid rgba(0, 168, 135, 0.18);
}

.value-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.65rem;
  color: var(--color-primary-900);
}

.value-card p {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ------------------------------------------
   7. Contact & B2B Inquiry Section
   ------------------------------------------ */
.contact-grid {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 3.5rem;
  align-items: start;
}

.contact-info-card {
  background-color: var(--color-primary-900);
  color: var(--color-text-inverse);
  padding: 2.75rem 2.25rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-info-card h3 {
  color: var(--color-text-inverse);
  font-size: 1.6rem;
  margin-bottom: 1rem;
}

.contact-info-card p {
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(0, 168, 135, 0.2);
  border: 1px solid rgba(0, 168, 135, 0.35);
  color: var(--color-teal-400);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-details h4 {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.775rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 0.25rem;
}

.contact-details a, .contact-details p {
  color: var(--color-text-inverse);
  font-size: 1rem;
  font-weight: 500;
}

.contact-details a:hover {
  color: var(--color-teal-400);
}

/* B2B Inquiry Form */
.rfq-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  padding: 2.75rem 2.25rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(11, 31, 58, 0.05);
}

.rfq-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary-900);
}

.rfq-subtitle {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 1.75rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 0.4rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-body);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-teal-500);
  box-shadow: 0 0 0 3px rgba(0, 168, 135, 0.15);
  background-color: var(--color-bg-surface);
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ------------------------------------------
   8. Footer
   ------------------------------------------ */
.site-footer {
  background-color: var(--color-primary-900);
  color: rgba(255, 255, 255, 0.75);
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.925rem;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
  max-width: 320px;
  line-height: 1.6;
}

.footer-title {
  color: var(--color-text-inverse);
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
  font-weight: 600;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.925rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-teal-400);
}

.footer-disclaimer-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.825rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.55;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  flex-wrap: wrap;
  gap: 1rem;
}

/* ------------------------------------------
   9. Media Queries (Responsive Engineering)
   ------------------------------------------ */
@media (max-width: 1024px) {
  .hero-grid, .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.75rem;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .hero-img {
    height: 400px;
  }
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .services-grid, .value-grid, .mission-vision-grid, .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .rfq-card, .contact-info-card {
    padding: 1.85rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 1.15rem;
    padding-right: 1.15rem;
  }

  .hero-headline {
    font-size: 1.65rem;
  }

  .hero-subheadline {
    font-size: 1rem;
  }

  .btn-lg {
    padding: 0.9rem 1.25rem;
    font-size: 0.95rem;
  }

  .service-card, .value-card, .mv-card {
    padding: 1.35rem;
  }
}

@media (max-width: 360px) {
  .badge {
    font-size: 0.725rem;
    padding: 0.3rem 0.65rem;
    white-space: normal !important;
    display: inline-flex !important;
    flex-wrap: wrap;
    max-width: 100%;
    word-break: break-word;
  }

  .brand-title {
    font-size: 1.15rem;
  }

  .brand-logo-img {
    height: 36px;
    width: 36px;
  }
}

/* ------------------------------------------
   10. Reduced Motion Accessibility
   ------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}