/* css/style.css */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #0077a8;
  --color-primary-dark: #005f86;
  --color-secondary: #f5a623;
  --color-secondary-dark: #d4891a;
  --color-text: #1a2e3b;
  --color-text-light: #4a6175;
  --color-bg: #f0f8fc;
  --color-bg-white: #ffffff;
  --color-border: #d1e8f0;
  --font-base: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --shadow-sm: 0 2px 8px rgba(0, 119, 168, 0.08);
  --shadow-md: 0 4px 24px rgba(0, 119, 168, 0.14);
  --transition: 0.25s ease;
  --container: 1200px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 16px;
}

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

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

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  margin-bottom: 0.5rem;
}

.section-sub {
  text-align: center;
  color: var(--color-text-light);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

/* HEADER */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

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

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

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

.nav__links a {
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition);
}

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

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  color: var(--color-text);
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-image: url('https://picsum.photos/1600/900?random=42');
  background-size: cover;
  background-position: center;
  color: #fff;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 60, 100, 0.78) 0%, rgba(0, 119, 168, 0.52) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: 6rem 1.25rem 4rem;
}

.hero__content h1 {
  font-size: clamp(2rem, 6vw, 3.75rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
}

.hero__sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  max-width: 560px;
  margin-bottom: 2rem;
  opacity: 0.92;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ABOUT */
.about {
  padding: 6rem 0;
  background: var(--color-bg-white);
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about__img img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.about__text h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 1.25rem;
  color: var(--color-primary);
}

.about__text p {
  margin-bottom: 1rem;
  color: var(--color-text-light);
}

.about__text .btn {
  margin-top: 1rem;
}

/* SERVICES */
.services {
  padding: 6rem 0;
  background: var(--color-bg);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* TESTIMONIALS */
.testimonials {
  padding: 6rem 0;
  background: linear-gradient(135deg, #e0f2fa 0%, #f0f8fc 100%);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* CONTACT SECTION */
.contact-section {
  padding: 6rem 0;
  background: var(--color-bg-white);
}

.contact-section__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}

.contact-section__info h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.contact-section__info p {
  color: var(--color-text-light);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.contact-list li svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-primary);
}

/* FOOTER */
.footer {
  background: #0f2233;
  color: #8fafc2;
  padding: 3.5rem 0 1.5rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer__logo {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer__brand p {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer h4 {
  color: #fff;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer__links a {
  color: #8fafc2;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer__links a:hover {
  color: #fff;
}

.footer__socials {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.footer__socials a {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8fafc2;
  transition: all var(--transition);
}

.footer__socials a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

/* PAGE HERO */
.page-hero {
  padding: 8rem 0 4rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, #00a8d4 100%);
  color: #fff;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.page-hero p {
  font-size: 1.15rem;
  opacity: 0.9;
  max-width: 480px;
  margin: 0 auto;
}

/* KONTAKT PAGE */
.kontakt-page {
  padding: 5rem 0;
}

.kontakt-page__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}

.info-card {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--color-border);
}

.info-card h3 {
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  color: var(--color-text);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .services__grid,
  .testimonials__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .nav__toggle {
    display: block;
  }

  .nav__links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    gap: 0.75rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
    z-index: 99;
  }

  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .about__grid,
  .contact-section__grid,
  .kontakt-page__grid {
    grid-template-columns: 1fr;
  }

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

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

  .footer__bottom {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}

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

  .btn--lg {
    width: 100%;
    justify-content: center;
  }
}