/* ===========================
   CSS Custom Properties
=========================== */
:root {
  --color-primary: #0ea5e9;
  --color-primary-dark: #0284c7;
  --color-primary-light: #e0f2fe;
  --color-accent: #06b6d4;
  --color-bg: #ffffff;
  --color-bg-alt: #f0f9ff;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
  --transition: .25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a { text-decoration: none; color: inherit; }

ul { list-style: none; }

/* ===========================
   Utilities
=========================== */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-accent { color: var(--color-primary); }

/* ===========================
   Buttons
=========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(14,165,233,.35);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px);
}

.btn--nav {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  padding: 9px 20px;
  font-size: 14px;
}
.btn--nav:hover {
  background: var(--color-primary-dark);
}

.btn--lg { padding: 15px 32px; font-size: 16px; }
.btn--full { width: 100%; }

/* ===========================
   Navigation
=========================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition), box-shadow var(--transition);
}
.nav.scrolled {
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 16px rgba(0,0,0,.08);
}

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

.nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  font-weight: 800;
  color: var(--color-white);
  transition: color var(--transition);
}
.nav.scrolled .nav__logo { color: var(--color-text); }

.nav__logo-icon { font-size: 24px; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__links a {
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,.9);
  transition: color var(--transition);
}
.nav.scrolled .nav__links a { color: var(--color-text); }
.nav__links a:hover { color: var(--color-primary); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition);
}
.nav.scrolled .nav__toggle span { background: var(--color-text); }

/* ===========================
   Language Switcher
=========================== */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lang-switcher__btn {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .5px;
  color: rgba(255,255,255,.65);
  padding: 4px 2px;
  transition: color var(--transition);
  line-height: 1;
}
.lang-switcher__btn:hover {
  color: var(--color-white);
}
.lang-switcher__btn--active {
  color: var(--color-white);
  border-bottom: 2px solid rgba(255,255,255,.8);
}

.nav.scrolled .lang-switcher__btn {
  color: var(--color-text-muted);
}
.nav.scrolled .lang-switcher__btn:hover {
  color: var(--color-primary);
}
.nav.scrolled .lang-switcher__btn--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.lang-switcher__divider {
  font-size: 12px;
  color: rgba(255,255,255,.3);
  user-select: none;
}
.nav.scrolled .lang-switcher__divider {
  color: var(--color-border);
}

/* Footer language switcher */
.lang-switcher--footer .lang-switcher__btn {
  color: rgba(255,255,255,.35);
}
.lang-switcher--footer .lang-switcher__btn:hover {
  color: var(--color-white);
}
.lang-switcher--footer .lang-switcher__btn--active {
  color: rgba(255,255,255,.85);
  border-bottom-color: rgba(255,255,255,.5);
}
.lang-switcher--footer .lang-switcher__divider {
  color: rgba(255,255,255,.2);
}

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

/* ===========================
   Hero
=========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0c4a6e 0%, #075985 40%, #0ea5e9 80%, #06b6d4 100%);
  z-index: -2;
}

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  z-index: -1;
}

.hero__content {
  max-width: 760px;
  color: var(--color-white);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.25);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
  color: rgba(255,255,255,.95);
}

.hero__title {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero__title .text-accent { color: #7dd3fc; }

.hero__subtitle {
  font-size: 18px;
  color: rgba(255,255,255,.82);
  margin-bottom: 36px;
  max-width: 560px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero__actions .btn--outline {
  color: var(--color-white);
  border-color: rgba(255,255,255,.6);
}
.hero__actions .btn--outline:hover {
  background: rgba(255,255,255,.15);
  border-color: rgba(255,255,255,.9);
}

.hero__stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.hero__stat strong {
  display: block;
  font-size: 32px;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1;
}
.hero__stat span {
  font-size: 14px;
  color: rgba(255,255,255,.7);
  margin-top: 4px;
  display: block;
}

.hero__waves {
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
}
.hero__waves svg {
  display: block;
  width: 100%;
  height: 80px;
}

/* ===========================
   Sections
=========================== */
.section {
  padding: 96px 0;
}
.section--alt {
  background: var(--color-bg-alt);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section__label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section__title {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  color: var(--color-text);
}

.section__desc {
  font-size: 17px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===========================
   Services
=========================== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.service-card__icon {
  font-size: 40px;
  margin-bottom: 20px;
  display: block;
}

.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.service-card p {
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ===========================
   About
=========================== */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__img-wrap {
  position: relative;
}

.about__img-placeholder {
  background: linear-gradient(135deg, #bae6fd, #7dd3fc);
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 96px;
}

.about__badge-card {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 16px 24px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}
.about__badge-card strong {
  display: block;
  font-size: 24px;
  font-weight: 800;
}
.about__badge-card span {
  font-size: 13px;
  opacity: .85;
}

.about__content p {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.about__list {
  margin: 24px 0 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about__list li {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
}

/* ===========================
   Pricing
=========================== */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: center;
}

.pricing-card {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  background: var(--color-white);
  position: relative;
  transition: var(--transition);
}
.pricing-card:hover {
  box-shadow: var(--shadow-lg);
}

.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
}

.pricing-card__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 100px;
  white-space: nowrap;
}

.pricing-card__name {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.pricing-card__price {
  margin-bottom: 32px;
}
.price-amount {
  font-size: 48px;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
}
.price-period {
  font-size: 16px;
  color: var(--color-text-muted);
}

.pricing-card__features {
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-card__features li {
  font-size: 15px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}
.pricing-card__features li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* ===========================
   Testimonials
=========================== */
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.testimonial-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.testimonial-card__stars {
  color: #f59e0b;
  font-size: 18px;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-card p {
  color: var(--color-text-muted);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 24px;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.testimonial-card__author strong {
  display: block;
  font-size: 15px;
  color: var(--color-text);
}
.testimonial-card__author span {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ===========================
   Contact
=========================== */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contact__info p {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact__details li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
}

.contact__icon {
  font-size: 20px;
  width: 44px;
  height: 44px;
  background: var(--color-primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact__form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14,165,233,.12);
}

.form-group select { cursor: pointer; }

.form-group textarea { resize: vertical; min-height: 100px; }

.form__success {
  display: none;
  margin-top: 16px;
  padding: 14px 18px;
  background: #f0fdf4;
  border: 1px solid #86efac;
  border-radius: 8px;
  color: #166534;
  font-size: 15px;
  font-weight: 500;
  text-align: center;
}

/* ===========================
   Footer
=========================== */
.footer {
  background: #0c1b2e;
  color: rgba(255,255,255,.7);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  padding: 64px 24px 48px;
}

.footer__brand .nav__logo {
  color: var(--color-white);
  margin-bottom: 16px;
  display: inline-flex;
}

.footer__brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,.55);
}

.footer__links h4 {
  color: var(--color-white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer__links ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__links a {
  font-size: 14px;
  color: rgba(255,255,255,.55);
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--color-white); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 24px;
  text-align: center;
}

.footer__bottom p {
  font-size: 13px;
  color: rgba(255,255,255,.4);
}

/* ===========================
   Responsive
=========================== */
@media (max-width: 1024px) {
  .pricing__grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin: 0 auto;
  }
  .pricing-card--featured {
    transform: none;
  }
  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }
  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    gap: 0;
    padding: 8px 0 16px;
    box-shadow: var(--shadow-lg);
  }
  .nav__links.open { display: flex; }
  .nav__links a {
    color: var(--color-text);
    padding: 12px 24px;
    width: 100%;
  }
  .nav__links .btn--nav {
    margin: 8px 24px 0;
    width: calc(100% - 48px);
  }
  .nav__toggle { display: flex; }

  .hero { padding: 100px 0 60px; }
  .hero__stats { gap: 28px; }

  .section { padding: 64px 0; }
  .section__header { margin-bottom: 40px; }

  .services__grid { grid-template-columns: 1fr; }
  .testimonials__grid { grid-template-columns: 1fr; }

  .form-row { grid-template-columns: 1fr; }

  .contact__form { padding: 28px 24px; }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 48px 24px 32px;
  }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
}

/* ===========================
   Animations
=========================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  opacity: 0;
  animation: fadeInUp .6s ease forwards;
}
.fade-in-up-1 { animation-delay: .1s; }
.fade-in-up-2 { animation-delay: .2s; }
.fade-in-up-3 { animation-delay: .3s; }