/* =========================================================
   KDCN GLOBAL THEME VARIABLES
   ========================================================= */

:root {
  --primary: #0b7fab;
  --accent: #00d1ff;
  --dark: #0a0f14;
  --light: #ffffff;
  --muted: #b9c6cf;
  --bg-gradient: linear-gradient(180deg, #060b10, #0a1118);
  --card-bg: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --nav-bg: #0a1118;
  --footer-bg: #05080c;
}

body.light {
  --primary: #0b7fab;
  --accent: #0077b6;
  --dark: #f0f4f8;
  --light: #111;
  --muted: #2c3e44;
  --bg-gradient: linear-gradient(180deg, #eef2f5, #ffffff);
  --card-bg: rgba(0, 0, 0, 0.02);
  --border: rgba(0, 0, 0, 0.08);
  --nav-bg: #f8fafc;
  --footer-bg: #eef2f5;
}

/* =========================================================
   GLOBAL BASE STYLES
   ========================================================= */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", system-ui, sans-serif;
}

body {
  background: var(--bg-gradient);
  color: var(--light);
  line-height: 1.7;
  transition: background 0.3s, color 0.3s;
}

body.light nav {
  background: var(--nav-bg);
  border-bottom-color: var(--border);
}

body.light nav a {
  color: var(--light);
}

body.light footer {
  background: var(--footer-bg);
  color: #2c3e44;
}

/* =========================================================
   NAVIGATION
   ========================================================= */

nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  z-index: 999;
  padding: 1rem;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: auto;
}

.nav-menu {
  display: flex;
  gap: 30px;
  list-style: none;
}

.nav-menu a {
  color: var(--light);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: var(--accent);
}

.logo img {
  height: 40px;
  width: auto;
}

.hamburger {
  display: none;
  cursor: pointer;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  background: var(--light);
  transition: 0.3s;
}

.theme-toggle {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  margin-left: 1rem;
  padding: 0 0.5rem;
}

/* =========================================================
   DROPDOWN NAVIGATION
   ========================================================= */

.dropdown {
  position: relative;
}

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 230px;
  background: var(--nav-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 0;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.35);
  z-index: 1000;
}

.dropdown-content a {
  display: block;
  padding: 10px 16px;
  color: var(--light);
  text-decoration: none;
  white-space: nowrap;
}

.dropdown-content a:hover {
  color: var(--accent);
  background: rgba(0, 209, 255, 0.06);
}

.dropdown:hover .dropdown-content {
  display: block;
}

/* =========================================================
   CTA BUTTON
   ========================================================= */

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #000;
  padding: 9px 20px;
  border-radius: 40px;
  text-decoration: none;
  font-weight: 700;
  white-space: nowrap;
  margin-left: 15px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 209, 255, 0.3);
}

/* =========================================================
   FOOTER
   ========================================================= */

footer {
  background: var(--footer-bg);
  padding: 60px 20px 30px;
  color: var(--muted);
}

.kdcn-footer-level {
  max-width: 1200px;
  margin: 0 auto;
}

.level-one {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 50px;
  padding-bottom: 40px;
}

.footer-section h4 {
  color: var(--accent);
  margin: 0 0 18px;
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-section a {
  display: block;
  width: fit-content;
  color: var(--muted);
  text-decoration: none;
  margin: 10px 0;
  font-size: 0.94rem;
  transition: color 0.3s, transform 0.3s;
}

.footer-section a:hover {
  color: var(--accent);
  transform: translateX(3px);
}

.footer-divider {
  border: 0;
  height: 2px;
  max-width: 1200px;
  margin: 0 auto 40px auto;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
}

.level-two {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 60px;
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 10px;
}

.footer-identity {
  max-width: 600px;
}

.footer-logo {
  width: 72px;
  height: auto;
  margin-bottom: 12px;
}

.footer-identity h3 {
  color: var(--accent);
  margin: 0 0 4px;
  font-size: 1.4rem;
  font-weight: 800;
}

.legal-name {
  margin: 0 0 16px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: #ffffff;
  font-size: 0.95rem;
}

.footer-motto {
  color: var(--light);
  line-height: 1.7;
  font-style: italic;
  margin: 18px 0 12px 0;
}

.footer-location {
  color: #cccccc;
  font-weight: 600;
  font-size: 1.05rem;
  margin: 16px 0 20px 0;
  letter-spacing: 0.3px;
}

.footer-socials {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  margin-top: 10px;
}

.footer-socials a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
}

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

.footer-legal {
  border-left: 2px solid var(--border);
  padding-left: 45px;
  display: flex;
  flex-direction: column;
}

.legal-copyright {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 0 20px 0;
}

.footer-legal a {
  color: var(--muted);
  text-decoration: none;
  margin: 6px 0;
  font-size: 0.94rem;
  transition: color 0.3s, transform 0.3s;
  width: fit-content;
}

.footer-legal a:hover {
  color: var(--accent);
  transform: translateX(3px);
}

/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 768px) {
  .hamburger {
    display: block;
  }
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background: var(--nav-bg);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    padding: 2rem 0;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-menu.active {
    left: 0;
  }
  .nav-container {
    flex-wrap: wrap;
  }
  .nav-container .theme-toggle {
    order: 2;
  }
  .cta-button {
    display: none;
  }
  .dropdown-content {
    position: static;
    width: 100%;
    box-shadow: none;
    border: none;
    border-radius: 0;
  }
  .dropdown:hover .dropdown-content {
    display: block;
  }
  .level-one {
    grid-template-columns: 1fr 1fr;
    gap: 30px 20px;
  }
  .level-one .footer-section:last-child {
    grid-column: 1 / -1;
  }
  .level-two {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-legal {
    border-left: none;
    border-top: 2px solid var(--border);
    padding-left: 0;
    padding-top: 30px;
  }
  .footer-identity {
    max-width: 100%;
  }
  .footer-socials {
    gap: 10px 15px;
  }
}

@media (max-width: 480px) {
  .level-one {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .level-one .footer-section:last-child {
    grid-column: auto;
  }
  .footer-logo {
    width: 56px;
  }
  .footer-identity h3 {
    font-size: 1.2rem;
  }
  .footer-location {
    font-size: 0.95rem;
  }
}