/* ------------------------------
   Design tokens
------------------------------ */

:root {
  /* Colors (green scheme) */
  --color-page-bg: #f5f7f2;
  --color-surface: #ffffff;
  --color-surface-alt: #f9fbf4;

  --color-primary: #74bb29;          /* main green */
  --color-primary-soft: #e4f4d1;     /* very light green */
  --color-primary-strong: #4f8a16;   /* darker accent green */

  --color-muted: #64748b;
  --color-text-main: #0f172a;

  --color-border-subtle: #e5e7eb;
  --color-border-strong: #cce3a4;

  --color-footer-bg: #11200b;        /* deep green/olive */

  /* Typography */
  --font-family-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.0625rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 1.875rem;
  --font-size-3xl: 2.25rem;
  --font-size-4xl: 2.75rem;

  /* Layout */
  --container-max-width: 1120px;
  --container-padding: 1.5rem;

  /* Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-full: 999px;

  /* Shadow */
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.07);

  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-7: 1.75rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
}

/* ------------------------------
   Reset / base
------------------------------ */

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

html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-main);
  background-color: var(--color-page-bg);
}

/* Make images and video responsive */
img,
video {
  max-inline-size: 100%;
  block-size: auto;
  display: block;
}

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

button {
  font: inherit;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
}

/* Focus outline */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* Container */
.container {
  max-width: var(--container-max-width);
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* Skip link */
.skip-link {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  text-decoration: none;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
}

.skip-link:focus-visible {
  opacity: 1;
  pointer-events: auto;
}

/* ------------------------------
   Header and navigation
------------------------------ */

.header {
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 80;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border-subtle);
  backdrop-filter: blur(12px);
}

.header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4);
  padding-block: var(--spacing-4);
}

.header__logo img {
  display: block;
}

/* Desktop nav (default) */
.nav {
  display: flex;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.nav__link {
  font-size: var(--font-size-md);
  font-weight: 500;
  color: var(--color-muted);
  padding-block: 0.25rem;
  position: relative;
  text-decoration: none;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.2rem;
  height: 2px;
  border-radius: var(--radius-full);
  background-color: transparent;
  transform-origin: center;
  transform: scaleX(0.3);
  opacity: 0;
  transition:
    background-color 0.2s ease,
    opacity 0.2s ease;
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-text-main);
}

.nav__link--active {
  color: var(--color-primary);
}

.nav__link--active::after {
  background-color: var(--color-primary);
  opacity: 1;
}

/* Header controls */
.header__controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  width: 2.5rem;
  height: 2.5rem;
  /*border-radius: var(--radius-full);*/
  /*border: 1px solid var(--color-border-subtle);*/
  display: none;
  /*align-items: center;*/
  /*justify-content: center;*/
  /*gap: 4px;*/
  /*padding-inline: 0;*/
  background-color: var(--color-surface);
}

.mobile-menu-toggle__line {
  width: 100%;
  height: 5px;
  background-color: black;
  margin: 6px 6px;
}

/* ------------------------------
   Hero section
------------------------------ */

.hero {
  padding-block: var(--spacing-12);
  background:
    radial-gradient(
      circle at top left,
      rgba(116, 187, 41, 0.10),
      transparent 55%
    ),
    linear-gradient(to bottom, #f2f6eb, #ffffff);
}

.hero__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-10);
}

.hero__text {
  flex: 1.1;
}

.hero__subtitle {
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.hero__title {
  font-size: var(--font-size-2xl); /*clamp(var(--font-size-3xl), 4vw, var(--font-size-4xl));*/
  line-height: 1.15;
  margin: 0 0 var(--spacing-3);
}

.hero__description {
  margin: 0 0 var(--spacing-6);
  color: var(--color-muted);
  font-size: var(--font-size-md);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
}

.hero__cta img {
  height: 3.5rem;
}

/* Hero video */
.hero__visual {
  flex: 1;
  max-width: 480px;
}

.hero__visual iframe {
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  border: 0;
  box-shadow: var(--shadow-soft);
}

/* ------------------------------
   Services section
------------------------------ */

.services {
  padding-block: var(--spacing-12);
  background-color: var(--color-surface);
}

.services__header {
  margin-bottom: var(--spacing-8);
}

.services__subtitle {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.services__grid {
  display: grid;
  gap: var(--spacing-6);
}

/* Service cards */
.service-card {
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  border: 1px solid rgba(148, 163, 184, 0.15);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.service-card__icon img {
  width: 3.5rem;
  height: 3.5rem;
}

.service-card__title {
  font-size: var(--font-size-lg);
  margin: 0;
}

.service-card__description {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

/* ------------------------------
   Features section
------------------------------ */

.features {
  padding-block: var(--spacing-12);
  background-color: var(--color-surface-alt);
}

.features__content {
  display: flex;
  align-items: center;
  gap: var(--spacing-10);
}

.features__text {
  flex: 1.1;
}

.features__subtitle {
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.features__title {
  font-size: var(--font-size-2xl);
  margin: 0 0 var(--spacing-5);
}

.features__list {
  display: grid;
  gap: var(--spacing-4);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
}

.feature-item__icon img {
  width: 2rem;
  height: 2rem;
}

.feature-item__title {
  font-size: var(--font-size-md);
  margin: 0 0 0.25rem;
}

.feature-item__description {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

.features__visual {
  flex: 0.9;
  display: flex;
  justify-content: center;
}

.features__phone {
  max-width: 320px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

/* ------------------------------
   Getting started section
------------------------------ */

.getting-started {
  padding-block: var(--spacing-12);
  background-color: var(--color-surface);
}

.getting-started__header {
  text-align: center;
  margin-bottom: var(--spacing-8);
}

.getting-started__subtitle {
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.getting-started__title {
  font-size: var(--font-size-2xl);
  margin: 0;
}

.getting-started__steps {
  display: grid;
  gap: var(--spacing-6);
}

/* Step cards */
.step {
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  padding: var(--spacing-6);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-4);
  box-shadow: var(--shadow-soft);
}

.step__number {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-full);
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step__title {
  font-size: var(--font-size-md);
  margin: 0 0 0.25rem;
}

.step__description {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

/* Zigzag effect on large screens */
.upper-step {
  margin-top: 0;
}

.lower-step {
  margin-top: var(--spacing-4);
}

/* ------------------------------
   CTA section
------------------------------ */

.cta {
  padding-block: var(--spacing-12);
  background:
    radial-gradient(
      circle at bottom right,
      rgba(116, 187, 41, 0.18),
      transparent 60%
    ),
    #15280b;
  color: #e2f0cc;
}

.cta__content {
  display: flex;
  align-items: center;
  gap: var(--spacing-10);
}

.cta__visual {
  flex: 0.9;
  display: flex;
  justify-content: center;
}

.cta__phone {
  max-width: 280px;
}

.cta__text {
  flex: 1.1;
}

.cta__title {
  font-size: var(--font-size-2xl);
  margin: 0 0 var(--spacing-3);
}

.cta__description {
  margin: 0 0 var(--spacing-5);
  color: #d7e8b3;
}

.cta__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-3);
}

.cta__buttons img {
  display: block;
}

/* ------------------------------
   Footer
------------------------------ */

.footer {
  background-color: var(--color-footer-bg);
  color: #b0c4a0;
  padding-block: var(--spacing-10);
}

.footer__content {
  display: grid;
  gap: var(--spacing-8);
  align-items: flex-start;
}

.footer__logo {
  filter: brightness(1.25);
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-8);
}

.footer__nav-group {
  min-width: 150px;
}

.footer__nav-title,
.footer__contact-title {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin: 0 0 var(--spacing-3);
  color: #e8f4d9;
}

.footer__nav-list {
  display: grid;
  gap: 0.4rem;
}

.footer__nav-link {
  font-size: var(--font-size-sm);
  color: #b0c4a0;
  text-decoration: none;
}

.footer__nav-link:hover,
.footer__nav-link:focus-visible {
  color: #e8f4d9;
}

.footer__contact-info {
  margin: 0 0 0.3rem;
  font-size: var(--font-size-sm);
}

.footer__contact-info a {
  text-decoration: none;
}

.footer__contact-info a:hover {
  text-decoration: underline;
}

.footer__social {
  display: flex;
  gap: var(--spacing-3);
}

.footer__social-link img {
  width: 32px;
  height: 32px;
}

/* ------------------------------
   Responsive tweaks
------------------------------ */

/* Tablets and up */
@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .features__content {
    align-items: stretch;
  }

  .getting-started__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer__content {
    grid-template-columns: 1.3fr 1.6fr 1.1fr 1.1fr;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .hero {
    padding-block: var(--spacing-16);
  }

  .hero__description {
    max-width: 34rem;
  }
}

/* Mobile layout + slide-in menu */
@media (max-width: 767px) {
  .header__content {
    padding-block: var(--spacing-3);
  }

  /* Mobile: slide-in nav from the right */
  .nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 260px;
    height: 100vh;
    background-color: var(--color-surface);
    box-shadow: -8px 0 24px rgba(15, 23, 42, 0.2);
    padding: var(--spacing-8) var(--spacing-6);
    display: block;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 90;
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-4);
  }

  .nav.nav--open {
    transform: translateX(0);
  }

  .mobile-menu-toggle {
    display: inline;
  }

  .hero__content {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-8);
  }

  .hero__content {
    padding-block: var(--spacing-2);
  }

  .hero__cta img {
    height: 3.25rem;
  }

  .features__content {
    flex-direction: column;
  }

  .features__visual {
    order: -1;
  }

  .cta__content {
    flex-direction: column;
    text-align: left;
  }

  .cta__visual {
    order: -1;
  }

  .getting-started__steps {
    gap: var(--spacing-4);
  }

  .step {
    margin-left: 0;
    padding: var(--spacing-5);
  }

  .upper-step,
  .lower-step {
    margin-top: var(--spacing-3);
    margin-bottom: 0;
  }

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

  .footer__nav {
    flex-direction: column;
  }
}