/* ===== CSS VARIABLES ===== */
:root {
  --primary-color: #FF6B35;
  --primary-color-alt: #FF8C00;
  --secondary-color: #0066CC;
  --secondary-color-alt: #003D7A;
  --accent-color: #00D4AA;
  --white-color: #FFFFFF;
  --light-color: #F8F9FA;
  --gray-color: #6C757D;
  --dark-color: #0B3951;
  --black-color: #000000;
  --title-color: #1B6697;
  --text-color: #0B3951;
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-alt) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-color-alt) 100%);
  --gradient-overlay: linear-gradient(135deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.4) 100%);
  --font-title: 'Poppins', sans-serif;
  --font-subtitle: 'Poppins', sans-serif;
  --font-body: 'Poppins', sans-serif;
  --h1-font-size: 3.5rem;
  --h2-font-size: 2.5rem;
  --h3-font-size: 1.5rem;
  --normal-font-size: 1rem;
  --small-font-size: 0.875rem;
  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semi-bold: 600;
  --font-bold: 700;
  --font-extra-bold: 800;
  --font-black: 900;
  --header-height: 4rem;
  --section-padding: 4rem 0;
  --container-margin: 0 1.5rem;
  --mb-0-25: 0.25rem;
  --mb-0-5: 0.5rem;
  --mb-1: 1rem;
  --mb-1-5: 1.5rem;
  --mb-2: 2rem;
  --mb-2-5: 2.5rem;
  --mb-3: 3rem;
  --shadow-light: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-medium: 0 4px 16px rgba(0,0,0,0.15);
  --shadow-heavy: 0 8px 32px rgba(0,0,0,0.2);
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --transition: all 0.3s ease;
  --transition-fast: all 0.2s ease;
  --transition-slow: all 0.5s ease;
  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;
}
@media screen and (max-width: 768px) {
  :root {
    --h1-font-size: 2.5rem;
    --h2-font-size: 2rem;
    --h3-font-size: 1.25rem;
  }
}
* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  font-family: var(--font-body);
  font-size: var(--normal-font-size);
  font-weight: var(--font-regular);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
}
h1, h2, h3, h4 {
  color: var(--title-color);
  font-weight: var(--font-semi-bold);
  line-height: 1.2;
}
ul {
  list-style: none;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  height: auto;
}
button {
  cursor: pointer;
  border: none;
  outline: none;
}
.container {
  max-width: 1200px;
  margin: var(--container-margin);
  margin-left: auto;
  margin-right: auto;
}
.section {
  padding: var(--section-padding);
}
.section__title {
  font-family: var(--font-title);
  font-size: var(--h2-font-size);
  text-align: center;
  margin-bottom: var(--mb-3);
  color: var(--title-color);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-weight: var(--font-medium);
  font-size: var(--normal-font-size);
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}
.btn--primary {
  background: var(--gradient-primary);
  color: var(--white-color);
  box-shadow: var(--shadow-medium);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-heavy);
}
.header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-fixed);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}
.header.scroll-header {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-light);
}
.nav {
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav__logo-img {
  height: 3.5rem;
  width: auto;
}
.nav__list {
  display: flex;
  gap: 2rem;
}
.nav__link {
  color: #1B6697;
  font-weight: var(--font-medium);
  transition: var(--transition);
  position: relative;
}
.nav__link:hover,
.nav__link.active-link {
  color: var(--primary-color);
}
.nav__link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -0.5rem;
  left: 0;
  background: var(--gradient-primary);
  transition: var(--transition);
}
.nav__link:hover::after,
.nav__link.active-link::after {
  width: 100%;
}
.nav__toggle,
.nav__close {
  display: none;
  font-size: 1.25rem;
  color: #1B6697;
  cursor: pointer;
}
.nav__social {
  display: flex;
  gap: 1rem;
  align-items: center;
}
.nav__social-link {
  color: #1B6697;
  font-size: 1.25rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: transparent;
}
.nav__social-link:hover {
  color: var(--primary-color);
  background: rgba(255, 107, 53, 0.1);
  transform: translateY(-2px);
}
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: 0;
}
.hero__video-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  overflow: hidden;
}
.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.3) contrast(1.2) saturate(1.5) sepia(0.8) hue-rotate(210deg);
}
.hero__video-container iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100vw;
  height: 56.25vw;
  min-height: 100vh;
  min-width: 177.77vh;
  transform: translate(-50%, -50%);
  filter: brightness(0.2) contrast(0.6) saturate(1.5) sepia(6) hue-rotate(890deg);
}
.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(13, 39, 80, 0.9) 0%, rgba(26, 54, 93, 0.85) 50%, rgba(0, 0, 0, 0.8) 100%);
  z-index: -1;
}
.hero__content {
  text-align: center;
  color: var(--white-color);
  z-index: 1;
}
.hero__title {
  font-family: var(--font-title);
  font-size: var(--h1-font-size);
  color: var(--white-color);
  margin-bottom: var(--mb-1);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease 0.5s forwards;
}
.hero__description {
  font-size: 1.25rem;
  margin-bottom: var(--mb-2-5);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease 0.7s forwards;
}
.hero__cta {
  font-size: 1.125rem;
  padding: 1.25rem 2.5rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s ease 0.9s forwards;
}
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  animation: fadeInUp 1s ease 1.1s forwards;
}
.hero__scroll-link {
  color: var(--white-color);
  font-size: 1.5rem;
  animation: bounce 2s infinite;
}
.hero__cta.remote-access-btn {
  transition: all 0.3s ease;
  position: relative;
}
.hero__cta.remote-access-btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
  background: var(--gradient-secondary);
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}
@media screen and (max-width: 1024px) {
  .container {
    margin-left: var(--mb-1-5);
    margin-right: var(--mb-1-5);
  }
}
@media screen and (max-width: 768px) {
  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background: var(--white-color);
    padding: 4rem 2rem 2rem;
    transition: var(--transition);
    box-shadow: var(--shadow-medium);
  }
  .nav__menu.show-menu {
    right: 0;
  }
  .nav__list {
    flex-direction: column;
    gap: 2rem;
  }
  .nav__close,
  .nav__toggle {
    display: block;
  }
  .nav__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
  }
  .nav__social {
    gap: 0.75rem;
  }
  .nav__social-link {
    width: 2rem;
    height: 2rem;
    font-size: 1rem;
  }
  .hero__title {
    font-size: 2.5rem;
  }
  .hero__description {
    font-size: 1rem;
  }
}
@media screen and (max-width: 480px) {
  .container {
    margin-left: var(--mb-1);
    margin-right: var(--mb-1);
  }
  .hero__title {
    font-size: 2rem;
  }
  .section__title {
    font-size: 2rem;
  }
}