/* FORBIX SEMICON® Common CSS - Header & Footer Styles */

/* ===== FONTS & BASE STYLES ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/icon?family=Material+Icons');

:root {
  /* Light Mode Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --border-color: #e2e8f0;
  --accent-color: #0d9488;
  --accent-hover: #0f766e;
  --shadow-light: rgba(0, 0, 0, 0.05);
  --shadow-medium: rgba(0, 0, 0, 0.1);
  --shadow-heavy: rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] {
  /* Dark Mode Colors */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border-color: #475569;
  --accent-color: #14b8a6;
  --accent-hover: #0d9488;
  --shadow-light: rgba(0, 0, 0, 0.2);
  --shadow-medium: rgba(0, 0, 0, 0.3);
  --shadow-heavy: rgba(0, 0, 0, 0.4);
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: all 0.3s ease;
}

/* ===== HEADER & NAVIGATION ===== */
#main-nav {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 20px var(--shadow-light);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

/* Navigation container */
#main-nav > div {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

#main-nav > div > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}

/* Logo section */
.logo-container {
  flex-shrink: 0;
}

.logo-container a {
  display: block;
}

.logo-light,
.logo-dark {
  height: 40px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

.logo-light {
  display: block;
}

.logo-dark {
  display: none;
}

[data-theme="dark"] .logo-light {
  display: none;
}

[data-theme="dark"] .logo-dark {
  display: block;
}

/* Desktop menu container */
.desktop-menu {
  flex: 1;
  display: flex;
  justify-content: center;
}

/* Desktop navigation */
#main-nav ul[role="menubar"] {
  display: flex;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 2rem;
}

/* Remove tick marks from all navigation lists */
#main-nav ul,
#main-nav ul li {
  list-style: none;
}

#main-nav ul li::before {
  display: none;
}

#main-nav ul[role="menubar"] > li {
  position: relative;
}

#main-nav ul[role="menubar"] a,
#main-nav ul[role="menubar"] button {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 1rem 0;
  border: none;
  background: none;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

#main-nav ul[role="menubar"] a:hover,
#main-nav ul[role="menubar"] button:hover {
  color: var(--accent-color);
}

/* Elegant underline effect */
#main-nav ul[role="menubar"] a::after,
#main-nav ul[role="menubar"] button::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
  transition: width 0.3s ease;
}

#main-nav ul[role="menubar"] a:hover::after,
#main-nav ul[role="menubar"] button:hover::after {
  width: 100%;
}

/* Dropdown menus */
#main-nav .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: 0 10px 40px var(--shadow-medium);
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1001;
  padding: 0.5rem 0;
}

/* Support both hover (mouse) and click (touch/JS) interactions */
#main-nav .dropdown:hover .dropdown-menu,
#main-nav .dropdown.active .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Ensure dropdown buttons are properly clickable */
#main-nav .dropdown button {
  cursor: pointer;
  pointer-events: auto;
}

/* Fix for first-click issues on some browsers */
#main-nav .dropdown-menu {
  pointer-events: auto;
}

#main-nav .dropdown-menu li {
  margin: 0;
}

#main-nav .dropdown-menu a {
  display: block;
  padding: 0.75rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 400;
  transition: all 0.3s ease;
  border-radius: 0;
}

#main-nav .dropdown-menu a:hover {
  background: var(--bg-secondary);
  color: var(--accent-color);
  transform: translateX(5px);
}

#main-nav .dropdown-menu a::after {
  display: none;
}

/* Elegant Theme Toggle */
#theme-toggle {
  width: 64px;
  height: 32px;
  background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
  border: 2px solid var(--border-color);
  border-radius: 20px;
  position: relative;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  margin-right: 1rem;
  box-shadow: 
    inset 0 2px 4px rgba(0, 0, 0, 0.1),
    0 2px 8px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

#theme-toggle:hover {
  transform: scale(1.05);
  box-shadow: 
    inset 0 2px 4px rgba(0, 0, 0, 0.15),
    0 4px 12px rgba(0, 0, 0, 0.1);
}

#theme-toggle:active {
  transform: scale(0.98);
}

[data-theme="dark"] #theme-toggle {
  background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
  border-color: var(--accent-color);
  box-shadow: 
    inset 0 2px 4px rgba(0, 0, 0, 0.3),
    0 2px 12px rgba(20, 184, 166, 0.2);
}

/* Theme toggle background animation */
#theme-toggle::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

#theme-toggle:hover::before {
  transform: translateX(100%);
}

/* Enhanced Toggle Dot */
#toggle-dot {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
  border-radius: 50%;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 
    0 2px 8px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  z-index: 2;
}

#toggle-dot::before {
  content: '☀️';
  font-size: 14px;
  transition: all 0.3s ease;
}

[data-theme="dark"] #toggle-dot {
  transform: translateX(32px);
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  box-shadow: 
    0 2px 12px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(20, 184, 166, 0.3),
    inset 0 1px 2px rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] #toggle-dot::before {
  content: '🌙';
}

/* Theme toggle icons animation */
#theme-toggle::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%2364748b' viewBox='0 0 24 24'%3E%3Cpath d='M21.752 15.002A9.718 9.718 0 0118 15.75c-5.385 0-9.75-4.365-9.75-9.75 0-1.33.266-2.597.748-3.752A9.753 9.753 0 003 11.25C3 16.635 7.365 21 12.75 21a9.753 9.753 0 009.002-5.998z'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  opacity: 0.6;
  transition: all 0.3s ease;
}

[data-theme="dark"] #theme-toggle::after {
  left: 8px;
  right: auto;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%2314b8a6' viewBox='0 0 24 24'%3E%3Cpath d='M12 2.25a.75.75 0 01.75.75v2.25a.75.75 0 01-1.5 0V3a.75.75 0 01.75-.75zM7.5 12a4.5 4.5 0 119 0 4.5 4.5 0 01-9 0zM18.894 6.166a.75.75 0 00-1.06-1.06l-1.591 1.59a.75.75 0 101.06 1.061l1.591-1.59zM21.75 12a.75.75 0 01-.75.75h-2.25a.75.75 0 010-1.5H21a.75.75 0 01.75.75zM17.834 18.894a.75.75 0 001.06-1.06l-1.59-1.591a.75.75 0 10-1.061 1.06l1.59 1.591zM12 18a.75.75 0 01.75.75V21a.75.75 0 01-1.5 0v-2.25A.75.75 0 0112 18zM7.758 17.303a.75.75 0 00-1.061-1.06l-1.591 1.59a.75.75 0 001.06 1.061l1.591-1.59zM6 12a.75.75 0 01-.75.75H3a.75.75 0 010-1.5h2.25A.75.75 0 016 12zM6.697 7.757a.75.75 0 001.06-1.06l-1.59-1.591a.75.75 0 00-1.061 1.06l1.59 1.591z'/%3E%3C/svg%3E");
}

/* Mobile menu button */
#mobile-menu-button {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.75rem;
  border-radius: 8px;
  transition: all 0.3s ease;
}

#mobile-menu-button:hover {
  background: var(--bg-secondary);
}

/* Hamburger icon */
.hamburger {
  width: 24px;
  height: 18px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Active state (X mark) */
#mobile-menu-button.active .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

#mobile-menu-button.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

#mobile-menu-button.active .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile navigation */
#mobile-menu {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  box-shadow: 0 10px 40px var(--shadow-medium);
  transform: translateY(-100%);
  opacity: 0;
  transition: all 0.3s ease;
  overflow: hidden;
  max-height: 0;
}

#mobile-menu:not(.hidden) {
  transform: translateY(0);
  opacity: 1;
  max-height: 500px;
}

#mobile-menu.hidden {
  display: block;
  max-height: 0;
  transform: translateY(-20px);
  opacity: 0;
}

#mobile-menu > div {
  padding: 1rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

#mobile-menu a,
#mobile-menu button {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.75rem 0;
  border: none;
  background: none;
  cursor: pointer;
  text-align: left;
  font-size: 1rem;
  transition: all 0.3s ease;
  border-bottom: 1px solid transparent;
}

#mobile-menu a:hover,
#mobile-menu button:hover {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
}

#mobile-menu div[id*="menu"] {
  padding-left: 1rem;
  margin-top: 0.5rem;
  border-left: 2px solid var(--accent-color);
  background: var(--bg-secondary);
  border-radius: 0 8px 8px 0;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

#mobile-menu div[id*="menu"]:not(.hidden) {
  max-height: 300px;
  padding-bottom: 0.5rem;
}

#mobile-menu div[id*="menu"] a {
  padding: 0.75rem 0;
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: block;
  width: 100%;
}

#mobile-menu div[id*="menu"] a:last-child {
  border-bottom: none;
}

/* Remove tick marks from mobile menu */
#mobile-menu ul,
#mobile-menu ul li {
  list-style: none;
}

#mobile-menu ul li::before,
#mobile-menu a::before,
#mobile-menu button::before {
  display: none;
}

/* ===== FOOTER STYLES ===== */
footer {
  background: #34495e;
  color: #ecf0f1;
  padding: 3rem 0 1.5rem 0;
  margin-top: 3rem;
  font-family: 'Inter', sans-serif;
}

footer > div:first-child {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

/* Company Info Section */
footer .footer-main > div:first-child {
  padding-right: 1rem;
}

footer .footer-main > div:first-child > div:first-child {
  margin-bottom: 1.5rem;
}

footer .footer-main > div:first-child img {
  height: 32px;
  width: auto;
}

footer .footer-main > div:first-child p {
  color: #bdc3c7;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

footer .footer-main > div:first-child > div:last-child {
  display: flex;
  gap: 1rem;
  align-items: center;
}

footer .footer-main > div:first-child a {
  color: #bdc3c7;
  font-size: 1.5rem;
  transition: color 0.3s ease;
}

footer .footer-main > div:first-child a:hover {
  color: #3498db;
}

/* Section Headings */
footer h3 {
  color: #ecf0f1;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-transform: none;
  letter-spacing: normal;
}

/* Navigation Links */
footer ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

footer ul li {
  margin: 0;
}

footer ul li a {
  color: #bdc3c7;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
  display: block;
  padding: 0.15rem 0;
  line-height: 1.3;
}

footer ul li a:hover {
  color: #3498db;
}

/* Contact Info */
footer .footer-main > div:last-child > div {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

footer .footer-main > div:last-child a {
  color: #bdc3c7;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

footer .footer-main > div:last-child a:hover {
  color: #3498db;
}

footer .footer-main > div:last-child a i {
  font-size: 1rem;
  width: 20px;
  text-align: center;
}

/* Newsletter Section - Full Width */
footer .footer-newsletter {
  background: #2c3e50;
  border-top: 1px solid #4a5568;
  padding: 2rem 0;
}

footer .footer-newsletter > div {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
}

footer .footer-newsletter h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: #ecf0f1;
}

footer .footer-newsletter p {
  color: #bdc3c7;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  text-align: center;
}

footer .footer-newsletter form {
  display: flex;
  gap: 0.5rem;
  max-width: 400px;
  margin: 0 auto;
  justify-content: center;
}

footer .footer-newsletter form input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid #4a5568;
  border-radius: 4px;
  background: #34495e;
  color: #ecf0f1;
  font-size: 0.9rem;
  outline: none;
}

footer .footer-newsletter form input::placeholder {
  color: #95a5a6;
}

footer .footer-newsletter form input:focus {
  border-color: #3498db;
}

footer .footer-newsletter form button {
  padding: 0.75rem 1.5rem;
  background: #3498db;
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

footer .footer-newsletter form button:hover {
  background: #2980b9;
}

footer .footer-newsletter #footerSubscribeMessage {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  padding: 0.5rem;
  border-radius: 4px;
  display: none;
}

/* Copyright Section - Full Width */
footer .footer-copyright {
  background: #2c3e50;
  border-top: 1px solid #4a5568;
  padding: 1.5rem 0;
}

footer .footer-copyright > div {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
}

footer .footer-copyright p {
  color: #95a5a6;
  font-size: 0.8rem;
  line-height: 1.5;
  margin: 0;
  text-align: center;
}

/* ===== RESPONSIVE DESIGN FOR HEADER/FOOTER ===== */

/* Tablet styles */
@media (max-width: 768px) {
  #main-nav > div {
    padding: 0 1rem;
  }

  #main-nav > div > div {
    gap: 1.5rem;
  }

  .logo-light,
  .logo-dark {
    height: 36px;
    max-width: 180px;
  }

  #main-nav ul[role="menubar"] {
    display: none;
  }

  .desktop-menu {
    display: none;
  }

  #mobile-menu-button {
    display: block;
  }

  #mobile-menu:not(.hidden) {
    display: block;
  }

  /* Responsive theme toggle for tablet */
  #theme-toggle {
    width: 56px;
    height: 28px;
    margin-right: 0.75rem;
  }

  #toggle-dot {
    width: 20px;
    height: 20px;
    top: 3px;
    left: 3px;
  }

  #toggle-dot::before {
    font-size: 12px;
  }

  [data-theme="dark"] #toggle-dot {
    transform: translateX(28px);
  }

  #theme-toggle::after {
    width: 14px;
    height: 14px;
    right: 6px;
  }

  [data-theme="dark"] #theme-toggle::after {
    left: 6px;
  }

  /* Footer responsive */
  footer .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  
  footer .footer-main > div:first-child {
    grid-column: span 2;
    text-align: center;
    padding-right: 0;
  }

  footer .footer-newsletter > div,
  footer .footer-copyright > div {
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  #main-nav > div {
    padding: 0 0.75rem;
  }

  #main-nav > div > div {
    gap: 1rem;
  }

  .logo-light,
  .logo-dark {
    height: 32px;
    max-width: 150px;
  }

  #mobile-menu > div {
    padding: 0.75rem 1rem;
  }

  /* Mobile theme toggle - compact but elegant */
  #theme-toggle {
    width: 48px;
    height: 24px;
    margin-right: 0.5rem;
    border-width: 1px;
  }

  #toggle-dot {
    width: 18px;
    height: 18px;
    top: 2px;
    left: 2px;
  }

  #toggle-dot::before {
    font-size: 10px;
  }

  [data-theme="dark"] #toggle-dot {
    transform: translateX(24px);
  }

  #theme-toggle::after {
    width: 12px;
    height: 12px;
    right: 4px;
  }

  [data-theme="dark"] #theme-toggle::after {
    left: 4px;
  }

  /* Enhanced mobile interaction */
  #theme-toggle:hover {
    transform: scale(1.08);
  }

  #theme-toggle:active {
    transform: scale(0.95);
  }

  /* Footer mobile */
  footer {
    padding: 2rem 0 0 0;
  }

  footer > div:first-child {
    padding: 0 1rem;
  }

  footer .footer-main {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  footer .footer-main > div:first-child {
    grid-column: span 1;
  }

  footer .footer-newsletter form {
    flex-direction: column;
    gap: 0.75rem;
  }

  footer .footer-copyright p {
    font-size: 0.75rem;
  }

  footer .footer-newsletter > div,
  footer .footer-copyright > div {
    padding: 0 1rem;
  }
}

/* ===== ACCESSIBILITY & PERFORMANCE ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus,
#theme-toggle:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Smooth transitions for theme switching */
body,
#main-nav,
footer {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}