/* =======================================================================
   Konia — Shared Styles
   Variables, reset, navigation, footer, toggles, mobile menu, dark mode
   ======================================================================= */

/* =======================================================================
   CSS Variables
   ======================================================================= */
:root {
  --color-primary: #2A584E;
  --color-primary-dark: #1E3F38;
  --color-primary-light: #E8F2F0;
  --color-dark: #0F172A;
  --color-gray-700: #334155;
  --color-gray-500: #64748B;
  --color-gray-300: #CBD5E1;
  --color-gray-100: #F1F5F9;
  --color-white: #FFFFFF;

  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --container-width: 800px;
  --transition: 0.3s ease;
}

/* =======================================================================
   Dark Mode Theme Overrides
   ======================================================================= */
[data-theme="dark"] {
  --color-primary: #3A7A6C;
  --color-primary-dark: #2A584E;
  --color-primary-light: #1A2F2A;
  --color-dark: #E8ECF0;
  --color-gray-700: #B0BCC8;
  --color-gray-500: #8494A7;
  --color-gray-300: #3A4556;
  --color-gray-100: #1E2736;
  --color-white: #0F1520;
}

[data-theme="dark"] body {
  background-color: #0F1520;
}

[data-theme="dark"] .nav {
  background: rgba(15, 21, 32, 0.95);
  border-bottom-color: var(--color-gray-100);
}

[data-theme="dark"] .footer {
  border-top-color: var(--color-gray-100);
}

[data-theme="dark"] .mobile-menu {
  background: #0F1520;
  border-bottom-color: var(--color-gray-300);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .mobile-menu__backdrop {
  background: rgba(0, 0, 0, 0.5);
}

/* =======================================================================
   Reset & Base
   ======================================================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--color-dark);
  line-height: 1.7;
  background-color: var(--color-white);
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* =======================================================================
   Utility Classes
   ======================================================================= */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* =======================================================================
   Language Toggle
   ======================================================================= */
.lang-toggle {
  display: flex;
  gap: 4px;
  background: transparent;
  border-radius: 8px;
  padding: 4px;
}

.lang-toggle button {
  font-family: var(--font-family);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  background: transparent;
  color: var(--color-gray-500);
  transition: var(--transition);
}

.lang-toggle button.active {
  background: var(--color-primary);
  color: var(--color-white);
}

.lang-toggle button:hover:not(.active) {
  color: var(--color-primary);
}

/* =======================================================================
   Navigation
   ======================================================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gray-100);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav__logo {
  text-decoration: none !important;
  display: flex;
  align-items: center;
  font-family: 'Cal Sans', var(--font-family);
  font-size: 28px;
  font-weight: 400;
  color: var(--color-dark);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav__link {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-gray-700);
  transition: var(--transition);
}

.nav__link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.nav__link--active {
  color: var(--color-primary);
}

/* =======================================================================
   Theme Toggle (Sun/Moon icon)
   ======================================================================= */
.nav__controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle {
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: var(--color-gray-500);
  position: relative;
}

.theme-toggle:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  transition: transform 0.4s ease, opacity 0.3s ease;
}

.theme-toggle__sun,
.theme-toggle__moon {
  position: absolute;
}

.theme-toggle__sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.theme-toggle__moon {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

[data-theme="dark"] .theme-toggle__sun {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

[data-theme="dark"] .theme-toggle__moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* =======================================================================
   Hamburger Button (mobile only)
   ======================================================================= */
.nav__hamburger {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--color-dark);
  transition: var(--transition);
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

.nav__hamburger:hover {
  background: var(--color-gray-100);
}

.nav__hamburger svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav__hamburger .icon-menu,
.nav__hamburger .icon-close {
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav__hamburger .icon-close {
  display: none;
}

.nav__hamburger.active .icon-menu {
  display: none;
}

.nav__hamburger.active .icon-close {
  display: block;
}

/* =======================================================================
   Mobile Menu Overlay
   ======================================================================= */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  z-index: 999;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-100);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  padding: 16px 24px 24px;
  transform: translateY(-10px);
  opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu__links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu__link {
  display: block;
  padding: 12px 16px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-gray-700);
  border-radius: 10px;
  transition: var(--transition);
}

.mobile-menu__link:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
  text-decoration: none;
}

.mobile-menu__link--active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.mobile-menu__backdrop {
  display: none;
  position: fixed;
  inset: 0;
  top: 72px;
  z-index: 998;
  background: rgba(0, 0, 0, 0.2);
}

.mobile-menu__backdrop.open {
  display: block;
}

/* =======================================================================
   Footer
   ======================================================================= */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--color-gray-100);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__copy {
  font-size: 14px;
  color: var(--color-gray-500);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__link {
  font-size: 14px;
  color: var(--color-gray-500);
  transition: var(--transition);
}

.footer__link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

/* =======================================================================
   Shared Responsive
   ======================================================================= */
@media (max-width: 768px) {
  .nav__inner {
    justify-content: space-between;
  }

  .nav__links {
    display: none;
  }

  .nav__controls {
    gap: 2px;
  }

  .lang-toggle {
    gap: 2px;
    padding: 2px;
  }

  .lang-toggle button {
    padding: 6px 10px;
  }

  .nav__hamburger {
    display: flex;
  }

  .mobile-menu {
    display: block;
    pointer-events: none;
  }

  .mobile-menu.open {
    pointer-events: auto;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .footer__links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 32px;
    text-align: center;
  }
}