:root {
  --color-ink: #16202b;
  --color-bg: #f7f9fb;
  --color-primary: #1d4e89;
  --color-primary-dark: #123157;
  --color-accent: #2ec4b6;
  --color-white: #ffffff;
  --font-sans: "Inter", "Helvetica Neue", Arial, sans-serif;
  --max-width: 1160px;
  --radius: 6px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1,
h2,
h3 {
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 1rem;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  letter-spacing: 0.02em;
}

.section {
  padding: 5rem 0;
}

.section--dark {
  position: relative;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247, 249, 251, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.site-header__logo {
  font-size: 1.2rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--color-primary-dark);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--color-ink);
}

.site-nav a:hover {
  color: var(--color-accent);
}

.site-nav__lang {
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 0.3rem 0.7rem;
  color: var(--color-primary) !important;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--color-primary-dark);
}

/* Hero */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  text-align: center;
}

.hero .container {
  max-width: 780px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
}

.hero__subheading {
  font-size: 1.15rem;
  max-width: 620px;
  margin: 0 auto 1.5rem;
}

.hero__prompt {
  margin-bottom: 2rem;
}

.hero__prompt a {
  text-decoration: underline;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.85rem 2.1rem;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: background 0.2s ease, color 0.2s ease;
}

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

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

.btn--solid {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-ink);
}

.btn--solid:hover {
  background: #25a89c;
  border-color: #25a89c;
}

/* About */
.about__grid {
  display: grid;
  gap: 2.5rem;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.about__subheading {
  opacity: 0.85;
  margin-top: -0.5rem;
  font-style: italic;
}

.about p {
  margin: 0 0 1.25rem;
}

/* Services */
.services {
  background: var(--color-bg);
}

.services__intro {
  max-width: 700px;
  margin: 0 auto 3rem;
  text-align: center;
  font-size: 1.1rem;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 640px;
  margin: 0 auto;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(22, 32, 43, 0.08);
  display: flex;
  flex-direction: column;
}

.service-card__body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.service-card h3 {
  font-size: 1.3rem;
}

.service-card__price {
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.service-card p {
  font-size: 0.97rem;
  margin: 0 0 1rem;
}

.service-card .btn {
  margin-top: auto;
  align-self: flex-start;
  color: var(--color-primary);
}

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

/* Testimonials */
.testimonials__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.testimonial {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin: 0;
}

.testimonial p {
  font-style: italic;
  margin: 0 0 1rem;
}

.testimonial__name {
  font-size: 0.85rem;
  opacity: 0.85;
}

/* Contact */
.contact__details {
  text-align: center;
  margin-bottom: 2rem;
}

.contact__details a {
  text-decoration: underline;
}

form.contact-form {
  display: grid;
  gap: 1rem;
  max-width: 560px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  gap: 0.4rem;
}

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

label {
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

input,
textarea,
select {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.form-status {
  min-height: 1.4rem;
  font-size: 0.9rem;
  text-align: center;
}

/* Footer */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 3rem 0 2rem;
}

.site-footer__grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-bottom: 2rem;
}

.site-footer h4 {
  font-size: 0.9rem;
  color: var(--color-accent);
  margin: 0 0 0.75rem;
}

.site-footer__bottom {
  text-align: center;
  font-size: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1.5rem;
  opacity: 0.75;
}

/* Responsive */
@media (min-width: 700px) {
  .about__grid {
    text-align: left;
  }
}

@media (max-width: 780px) {
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    background: var(--color-bg);
    padding: 1.5rem;
    gap: 1.25rem;
    transform: translateY(-150%);
    transition: transform 0.25s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  }

  .site-nav.is-open {
    transform: translateY(0);
  }

  .nav-toggle {
    display: block;
  }
}