/* Global Styles, Reset & Header/Footer Layouts - Premium Light Mode Edition */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-primary-dark);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex-grow: 1;
}

/* Glowing Ambient Mesh Backgrounds - Soft Teal / Sky Blue Glows for Light Mode */
body::before {
  content: '';
  position: absolute;
  top: -10%;
  left: -10%;
  width: 50%;
  height: 60%;
  background: radial-gradient(circle, rgba(13, 107, 107, 0.03) 0%, rgba(255, 255, 255, 0) 70%);
  z-index: -1;
  pointer-events: none;
}

body::after {
  content: '';
  position: absolute;
  bottom: 15%;
  right: -10%;
  width: 50%;
  height: 40%;
  background: radial-gradient(circle, rgba(2, 132, 199, 0.03) 0%, rgba(255, 255, 255, 0) 75%);
  z-index: -1;
  pointer-events: none;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-primary-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary-surface);
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-primary-dark);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

::selection {
  background: var(--color-accent);
  color: var(--color-primary-card);
}

/* Sticky Header Navigation */
.header-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.header-nav.scrolled {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  padding: 0.8rem 0;
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 1.2rem var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: padding var(--transition-normal);
}

.header-nav.scrolled .nav-container {
  padding: 0.5rem var(--spacing-lg);
}

/* Logo Design - Deep Teal themed for Light Mode */
.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-headings);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-text-primary);
}

.logo-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.logo span {
  background: linear-gradient(to right, var(--color-text-primary) 50%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Desktop Navigation Menu Links */
.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--spacing-xs) 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Mobile Toggle Hamburger */
.hamburger-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: space-around;
  padding: 4px;
  z-index: 1001;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all var(--transition-fast);
  border-radius: var(--radius-round);
}

/* Outer layout sections */
.section-wrapper {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--spacing-section) var(--spacing-lg);
}

.section-title-area {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.section-badge {
  display: inline-block;
  background-color: rgba(13, 107, 107, 0.05);
  color: var(--color-accent);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-round);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
  border: 1px solid rgba(13, 107, 107, 0.1);
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-size: clamp(1rem, 2vw, 1.15rem);
}

/* Footer Section - Classic Premium Contrast Charcoal Dark-Teal Base */
footer {
  background-color: #0A1C21;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: var(--spacing-xl);
  color: #94A3B8;
  font-size: 0.95rem;
}

footer .section-wrapper {
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-lg);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1.2fr;
  gap: var(--spacing-xxl);
}

.footer-column h4 {
  color: #FFFFFF;
  margin-bottom: var(--spacing-lg);
  font-size: 1.1rem;
  font-weight: 600;
}

.footer-column p {
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: #94A3B8;
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: var(--spacing-xs);
}

/* Social icons block */
.social-icons-row {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.social-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  place-items: center;
  transition: all var(--transition-fast);
}

.social-icon-btn svg {
  width: 20px;
  height: 20px;
  fill: #94A3B8;
  transition: fill var(--transition-fast);
}

.social-icon-btn:hover {
  border-color: var(--color-accent);
  background-color: rgba(13, 107, 107, 0.1);
  transform: translateY(-3px);
}

.social-icon-btn:hover svg {
  fill: var(--color-accent);
}

/* Newsletter quick form */
.newsletter-form {
  display: flex;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-md);
}

.newsletter-input {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 0.6rem var(--spacing-md);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: 0.9rem;
  flex: 1;
}

.newsletter-input:focus {
  border-color: var(--color-accent);
  outline: none;
}

.newsletter-submit {
  background-color: var(--color-accent);
  color: #FFFFFF;
  border: none;
  font-weight: 600;
  border-radius: var(--radius-md);
  padding: 0 1rem;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.newsletter-submit:hover {
  background-color: var(--color-accent-hover);
}

/* Footer Bottom */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  font-size: 0.85rem;
  color: #57737A;
  display: flex;
  justify-content: space-between;
  max-width: var(--container-max-width);
  margin: 0 auto;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-bottom a {
  color: #57737A;
}

.footer-bottom a:hover {
  color: var(--color-accent);
}

/* Responsive Overrides */
@media (max-width: 968px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
  }
}

@media (max-width: 768px) {
  .hamburger-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(253, 251, 247, 0.98);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--glass-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem var(--spacing-xl) var(--spacing-xl);
    gap: var(--spacing-lg);
    transition: right var(--transition-normal);
    box-shadow: var(--shadow-xl);
  }
  
  .nav-menu.open {
    right: 0;
  }
  
  .nav-link {
    font-size: 1.15rem;
    color: var(--color-text-primary);
    width: 100%;
    display: block;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
  }
}