/* ==========================================================================
   Infinite Context - Static Site CSS
   Design Tokens + Component Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Colors - Brand */
  --color-primary: #00aacc;
  --color-primary-dark: #006688;
  --color-secondary: #0095eb;
  --color-accent: #00d4ff;

  /* Colors - Neutral */
  --color-text: #626262;
  --color-text-light: #888888;
  --color-text-dark: #333333;
  --color-heading: #333333;

  /* Colors - Background */
  --color-bg-white: #ffffff;
  --color-bg-light: #f7f7f7;
  --color-bg-grey: #eeeeee;
  --color-bg-dark: #00445b;
  --color-bg-footer: #00445b;

  /* Typography */
  --font-primary: "Optima", "Segoe UI", Arial, Tahoma, sans-serif;
  --font-heading: "Optima", "Segoe UI", Arial, Tahoma, sans-serif;
  --font-mono: "SF Mono", "Monaco", "Consolas", monospace;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --header-height: 80px;

  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg-white);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-heading);
  line-height: 1.3;
  margin-bottom: var(--space-md);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  margin-bottom: var(--space-md);
}

.lead {
  font-size: var(--text-lg);
  color: var(--color-text-light);
}

/* --------------------------------------------------------------------------
   Layout Components
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: var(--space-4xl) 0;
}

.section--grey {
  background-color: var(--color-bg-grey);
}

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

.section--dark h1,
.section--dark h2,
.section--dark h3 {
  color: var(--color-bg-white);
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* Flexbox Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: linear-gradient(to right, #00455C, #006182);
  box-shadow: none;
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo img {
  height: 50px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__list {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
}

.nav__link {
  color: #ffffff;
  font-weight: 500;
  padding: var(--space-sm) 0;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-fast);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__link:hover {
  color: var(--color-accent);
}

/* Language Switcher */
.lang-switch {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
}

.lang-switch__link {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  border-radius: var(--radius-sm);
}

.lang-switch__link:hover {
  color: #ffffff;
}

.lang-switch__link.active {
  background: var(--color-accent);
  color: var(--color-bg-dark);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: #ffffff;
  transition: var(--transition-fast);
}

@media (max-width: 992px) {
  .menu-toggle {
    display: flex;
  }

  .nav__list {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: #00455C;
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
  }

  .nav__list.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__list .nav__link {
    color: #ffffff;
    padding: var(--space-md) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav__list .nav__link:hover {
    color: var(--color-accent);
  }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: top;
  background-repeat: no-repeat;
  margin-top: var(--header-height);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 68, 91, 0.85) 0%, rgba(0, 170, 204, 0.7) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  color: white;
  max-width: 700px;
}

.hero__title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  color: white;
  margin-bottom: var(--space-lg);
}

.hero__subtitle {
  font-size: var(--text-xl);
  opacity: 0.9;
  margin-bottom: var(--space-xl);
}

/* Hero Home Variant */
.hero--home {
  min-height: 85vh;
  background-position: center center;
}

.hero--home::before {
  background: linear-gradient(135deg, rgba(0, 68, 91, 0.6) 0%, rgba(0, 170, 204, 0.4) 100%);
}

.hero--home .hero__content {
  max-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__logo {
  margin-bottom: var(--space-xl);
  max-width: 100%;
  height: auto;
  align-self: flex-start;
}

.hero--home .hero__title {
  color: white;
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  text-align: center;
  width: 100%;
}

.hero--home .hero__subtitle {
  color: rgba(255, 255, 255, 0.9);
  text-align: center;
}

/* Dropdown Menu */
.nav__item {
  position: relative;
}

.nav__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-bg-white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  min-width: 240px;
  padding: var(--space-sm) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s ease;
  z-index: 1001;
  list-style: none;
  border: 1px solid var(--color-bg-grey);
  margin-top: 8px;
}

/* Dropdown arrow */
.nav__dropdown::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 20px;
  width: 12px;
  height: 12px;
  background: var(--color-bg-white);
  border-left: 1px solid var(--color-bg-grey);
  border-top: 1px solid var(--color-bg-grey);
  transform: rotate(45deg);
}

/* Extend hover area */
.nav__item::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 20px;
}

.nav__item:hover .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown li {
  padding: 0;
}

.nav__dropdown a {
  display: block;
  padding: var(--space-sm) var(--space-lg);
  color: var(--color-text-dark);
  font-size: var(--text-sm);
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.nav__dropdown a:hover {
  background-color: var(--color-bg-light);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  padding-left: calc(var(--space-lg) - 3px + var(--space-sm));
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: 600;
  text-align: center;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

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

.btn--outline {
  background: transparent;
  border-color: white;
  color: white;
}

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

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

.btn--secondary:hover {
  background: var(--color-text-dark);
  color: white;
}

/* --------------------------------------------------------------------------
   Service Cards
   -------------------------------------------------------------------------- */
.service-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.service-card__image {
  height: 200px;
  background-size: cover;
  background-position: center;
}

.service-card__content {
  padding: var(--space-xl);
}

.service-card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
}

.service-card__excerpt {
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.service-card__link {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.service-card__link::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.service-card__link:hover::after {
  transform: translateX(5px);
}

/* --------------------------------------------------------------------------
   Flat Boxes (Icon Boxes)
   -------------------------------------------------------------------------- */
.flatbox {
  text-align: center;
  padding: var(--space-xl);
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.flatbox__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  color: white;
  font-size: var(--text-3xl);
}

.flatbox__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
}

.flatbox__text {
  color: var(--color-text-light);
  font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   Contact Form
   -------------------------------------------------------------------------- */
.form {
  max-width: 600px;
}

.form__group {
  margin-bottom: var(--space-lg);
}

.form__label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 500;
  color: var(--color-text-dark);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  border: 1px solid #ddd;
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 170, 204, 0.1);
}

.form__textarea {
  min-height: 150px;
  resize: vertical;
}

/* Honeypot field - hidden from users */
.form__honeypot {
  position: absolute;
  left: -9999px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--color-bg-footer);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer a {
  color: rgba(255, 255, 255, 0.8);
}

.footer a:hover {
  color: white;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

.footer__title {
  color: white;
  font-size: var(--text-lg);
  margin-bottom: var(--space-lg);
}

.footer__list {
  list-style: none;
}

.footer__list li {
  margin-bottom: var(--space-sm);
}

.footer__contact p {
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   Page Header (Subpages)
   -------------------------------------------------------------------------- */
.page-header {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-primary-dark) 100%);
  padding: var(--space-4xl) 0 var(--space-2xl);
  margin-top: var(--header-height);
  text-align: center;
  color: white;
}

.page-header__title {
  color: white;
  margin-bottom: var(--space-sm);
}

.page-header__breadcrumb {
  font-size: var(--text-sm);
  opacity: 0.8;
}

.page-header__breadcrumb a {
  color: white;
  opacity: 0.8;
}

.page-header__breadcrumb a:hover {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   Content Blocks
   -------------------------------------------------------------------------- */
.content-block {
  padding: var(--space-3xl) 0;
}

.content-block--alt {
  background: var(--color-bg-light);
}

.content-block__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.content-block__inner--reverse {
  direction: rtl;
}

.content-block__inner--reverse > * {
  direction: ltr;
}

@media (max-width: 768px) {
  .content-block__inner,
  .content-block__inner--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }
}

.content-block__image {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   AI Integration Highlight (New Section)
   -------------------------------------------------------------------------- */
.ai-highlight {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  padding: var(--space-3xl);
  border-radius: var(--radius-lg);
  margin: var(--space-2xl) 0;
}

.ai-highlight h3 {
  color: white;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.ai-highlight__icon {
  font-size: var(--text-3xl);
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
  .header,
  .footer,
  .nav {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: var(--space-xl) 0;
  }

  body {
    font-size: 12pt;
    color: black;
  }
}

/* --------------------------------------------------------------------------
   Cookie Banner
   -------------------------------------------------------------------------- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-bg-dark);
  color: #fff;
  padding: var(--space-md) var(--space-lg);
  z-index: 9999;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
  display: none;
}

.cookie-banner.active {
  display: block;
}

.cookie-banner__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.cookie-banner__text {
  flex: 1;
  font-size: var(--text-sm);
  line-height: 1.5;
}

.cookie-banner__text a {
  color: var(--color-accent);
  text-decoration: underline;
}

.cookie-banner__buttons {
  display: flex;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.cookie-banner__btn {
  padding: var(--space-sm) var(--space-lg);
  border: none;
  cursor: pointer;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: background-color 0.2s;
}

.cookie-banner__btn--accept {
  background-color: var(--color-primary);
  color: #fff;
}

.cookie-banner__btn--accept:hover {
  background-color: var(--color-primary-dark);
}

.cookie-banner__btn--reject {
  background-color: transparent;
  color: #fff;
  border: 1px solid #fff;
}

.cookie-banner__btn--reject:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
  .cookie-banner__inner {
    flex-direction: column;
    text-align: center;
  }

  .cookie-banner__buttons {
    width: 100%;
    justify-content: center;
  }
}