@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  /* Colors */
  --primary: #0066B1;
  /* BMW Blue */
  --secondary: #111111;
  /* Dark Corporate */
  --accent: #E7222E;
  /* Red accent */
  --light-gray: #F8F9FA;
  --medium-gray: #E0E0E0;
  --text-dark: #333333;
  --text-light: #777777;
  --white: #FFFFFF;

  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing & Sizes */
  --nav-height: 90px;
  --container-max: 1280px;
  --border-radius: 8px;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background-color: var(--white);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Language Toggles */
html[lang="en"] .lang-tr {
  display: none !important;
}

html[lang="tr"] .lang-en {
  display: none !important;
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--secondary);
  line-height: 1.2;
}

h1 {
  font-size: 3.5rem;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--primary);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
}

/* Utilities */
.text-center {
  text-align: center;
}

.mt-4 {
  margin-top: 2rem;
}

.mb-4 {
  margin-bottom: 2rem;
}

.section-padding {
  padding: 6rem 0;
}

.bg-light {
  background-color: var(--light-gray);
}

.bg-dark {
  background-color: var(--secondary);
  color: var(--white);
}

.bg-dark h2 {
  color: var(--white);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background-color: #00508b;
  box-shadow: 0 10px 20px rgba(0, 102, 177, 0.2);
  transform: translateY(-2px);
}

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

.btn-outline:hover {
  background-color: var(--primary);
  color: var(--white);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  display: flex;
  align-items: center;
}

.navbar.scrolled {
  height: 75px;
  background: #ffffff;
}

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

.navbar-brand {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 15px;
}

.navbar-brand img {
  height: 40px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links li a {
  text-decoration: none;
  color: var(--secondary);
  font-weight: 500;
  font-size: 1rem;
  transition: var(--transition);
  position: relative;
  display: inline-block;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: var(--primary);
  transform: translateY(-2px);
}

.nav-links li a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

.nav-links li a:hover::after,
.nav-links li a.active::after {
  width: 100%;
}

.lang-switch {
  display: flex;
  gap: 10px;
  margin-left: 2rem;
  border-left: 1px solid var(--medium-gray);
  padding-left: 2rem;
}

.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-light);
  font-size: 0.9rem;
  transition: var(--transition);
  opacity: 0.6;
}

.lang-btn.active,
.lang-btn:hover {
  color: var(--secondary);
  opacity: 1;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--secondary);
}

/* Hero Section */
.hero {
  padding-top: calc(var(--nav-height) + 2rem);
}

.hero h1,
.hero .hero-subtitle {
  color: #ffffff !important;
}

/* Page Header */
.page-header {
  padding-top: calc(var(--nav-height) + 5rem);
  padding-bottom: 5rem;
  background: var(--secondary);
  color: var(--white);
  text-align: center;
}

.page-header h1 {
  color: var(--white);
}

/* Footer */
footer {
  background-color: var(--secondary);
  color: var(--white);
}

.footer-top {
  padding: 5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-col h4 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

.footer-col p {
  color: #B0B0B0;
  font-size: 0.95rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.8rem;
}

.footer-col ul li a {
  color: #B0B0B0;
  text-decoration: none;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--white);
  padding-left: 5px;
}

.footer-bottom {
  padding: 1.5rem 0;
  text-align: center;
  color: #888;
  font-size: 0.9rem;
}

/* Cards */
.card {
  background: linear-gradient(145deg, #ffffff, #fcfcfc);
  border-radius: 16px;
  padding: 3rem 2rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.04);
  transition: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
  height: 100%;
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-15px);
  box-shadow: 0 30px 60px rgba(0, 102, 177, 0.15);
  border-color: transparent;
}

.card-icon {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
  background: rgba(0, 102, 177, 0.08);
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  margin-left: auto;
  margin-right: auto;
  transition: all 0.5s ease;
}

.card:hover .card-icon {
  background: var(--primary);
  color: #fff;
  transform: scale(1.1) translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 102, 177, 0.3);
}

.card h3 {
  margin-bottom: 1rem;
}

/* Layout Utilities */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

/* Responsive */
@media (max-width: 1024px) {
  h1 {
    font-size: 2.8rem;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {

  .nav-links,
  .lang-switch {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .navbar.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--white);
    padding: 2rem;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  }

  .navbar.menu-open .lang-switch {
    display: flex;
    justify-content: center;
    margin-left: 0;
    margin-top: 1rem;
    padding-left: 0;
    border-left: none;
    padding-top: 1rem;
    border-top: 1px solid var(--medium-gray);
  }

  .grid-2 {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.2rem;
  }

  .section-padding {
    padding: 4rem 0;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* TV & Ultrawide Display Scaling */
@media (min-width: 1920px) {
  html {
    font-size: 110%;
  }

  .container {
    max-width: 1600px;
  }
}

@media (min-width: 2560px) {
  html {
    font-size: 130%;
  }

  .container {
    max-width: 2000px;
  }
}

/* Custom Premium Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
  background: var(--medium-gray);
  border-radius: 6px;
  border: 3px solid var(--light-gray);
}

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

body.dark-mode ::-webkit-scrollbar-track {
  background: #111111;
}

body.dark-mode ::-webkit-scrollbar-thumb {
  background: #333333;
  border-color: #111111;
}

body.dark-mode ::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Dark Mode Overrides */
body.dark-mode {
  --primary: #3399ff;
  --light-gray: #1a1a1a;
  --medium-gray: #333333;
  --text-dark: #e0e0e0;
  --text-light: #aaaaaa;
  --white: #222222;
  background-color: #111111;
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3,
body.dark-mode h4,
body.dark-mode h5,
body.dark-mode h6,
body.dark-mode .navbar-brand,
body.dark-mode .nav-links li a,
body.dark-mode .mobile-menu-btn {
  color: #ffffff !important;
}

body.dark-mode .navbar {
  background: rgba(26, 26, 26, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

body.dark-mode .navbar.scrolled {
  background: #1a1a1a;
}

body.dark-mode .card,
body.dark-mode .contact-box {
  background: linear-gradient(145deg, #222222, #181818);
  border: 1px solid rgba(255, 255, 255, 0.03);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

body.dark-mode .card:hover {
  border-color: rgba(51, 153, 255, 0.3);
  box-shadow: 0 20px 50px rgba(51, 153, 255, 0.15);
}

body.dark-mode .card-icon {
  background: rgba(51, 153, 255, 0.12);
  color: #3399ff;
}

body.dark-mode .form-control {
  background: #2a2a2a;
  color: #fff;
  border-color: #444;
}

body.dark-mode footer {
  background-color: #0a0a0a;
}

body.dark-mode .theme-toggle {
  color: #ffffff !important;
}

/* View Transitions for Cinematic Dark Mode */
::view-transition-group(root) {
  animation-duration: 0.8s;
}

::view-transition-new(root),
::view-transition-old(root) {
  animation: none;
  mix-blend-mode: normal;
}

/* Theme Toggle SVG Animation */
.theme-icon-svg {
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--secondary);
  transform-origin: center;
}

.theme-icon-svg .sun-core {
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

.theme-icon-svg .sun-rays {
  transition: opacity 0.4s ease, transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

body.dark-mode .theme-icon-svg {
  transform: rotate(-100deg);
  color: #ffffff !important;
}

body.dark-mode .theme-icon-svg .sun-core {
  transform: scale(1.6);
}

body.dark-mode .theme-icon-svg .sun-rays {
  opacity: 0;
  transform: rotate(45deg);
}

/* Fix Moon Crescent Cutout */
#moon-mask circle {
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-mode #moon-mask circle {
  transform: translateX(-10px) translateY(2px);
}

/* Fix Language Switch Contrast in Dark Mode */
body.dark-mode .lang-btn {
  color: #aaaaaa;
}

body.dark-mode .lang-btn.active,
body.dark-mode .lang-btn:hover {
  color: #ffffff !important;
}

/* Scroll Animations */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
  will-change: opacity, transform;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Lightbox Responsiveness */
@media (max-width: 768px) {
  #lightbox .lightbox-close {
    top: 15px !important;
    right: 15px !important;
    font-size: 40px !important;
  }

  #lightbox .lightbox-nav {
    padding: 10px !important;
    font-size: 30px !important;
  }

  #lightbox .lightbox-prev {
    left: 5px !important;
  }

  #lightbox .lightbox-next {
    right: 5px !important;
  }

  #lightbox-img {
    max-width: 95% !important;
  }
}

@media (min-width: 1920px) {
  #lightbox .lightbox-nav {
    font-size: 60px !important;
    padding: 40px !important;
  }

  #lightbox-img {
    max-width: 80% !important;
  }
}


/* --- FINAL RESPONSIVE PATCHES --- */
/* Flexbox overflow protection */
body {
    overflow-x: hidden;
    position: relative;
    margin: 0;
}

.hero, .hero .container, .page-header, .page-header .container {
    min-width: 0; 
}

h1, h2, h3, p {
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
}

/* Original Desktop Hero Sizes */
.hero-title {
    font-size: 4rem;
    line-height: 1.2;
}
.page-hero-title {
    font-size: 3.5rem;
    line-height: 1.2;
}

/* Mobile Breakpoints */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .page-hero-title {
        font-size: 2.2rem;
    }
    .navbar-brand {
        font-size: 1.1rem;
    }
    .lang-btn {
        padding: 0.15rem 0.3rem;
        font-size: 0.75rem;
    }
    .theme-toggle {
        margin-left: 8px;
        padding-left: 8px;
    }
    .mobile-menu-btn {
        font-size: 1.3rem;
        margin-left: 5px;
    }
    .nav-controls {
        gap: 5px;
    }
    .container {
        padding: 0 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem; /* Safe for very small phones */
        line-height: 1.1;
    }
    .page-hero-title {
        font-size: 1.8rem;
    }
}