/**
 * Main Stylesheet — ИП Ларина Landing Page
 * Based on design: /content/screen1.png
 */

/* ========================================
   CSS Variables
   ======================================== */
:root {
  /* Color Palette */
  --color-blue-light: #B8CDD8;      /* Светло-голубой (hero background) */
  --color-blue-card: #C8D9E3;       /* Голубой (карточки кнопок) */
  --color-gray-dark: #3E3E3E;       /* Темно-серый (текст) */
  --color-gray-medium: #5A5A5A;     /* Средний серый (подзаголовки) */
  --color-gray-light: #E8E8E8;      /* Светло-серый (фон body) */
  --color-footer: #687864;          /* Серо-зеленый (footer) */
  --color-white: #FFFFFF;           /* Белый */

  /* Typography */
  --font-family: 'Georgia', 'Times New Roman', serif;
  --font-family-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;

  /* Font Sizes */
  --font-size-h1: 48px;
  --font-size-h2: 36px;
  --font-size-body: 18px;
  --font-size-small: 14px;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-xxl: 64px;

  /* Layout */
  --container-width: 1200px;
  --border-radius: 24px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-gray-dark);
  background-color: var(--color-gray-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

a:hover {
  opacity: 0.7;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  background-color: var(--color-blue-light);
  position: relative;
  overflow: visible;
}

.hero__container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  position: relative;
}

/* Hero Header (Logo) */
.hero__header {
  margin-bottom: var(--spacing-xl);
}

.hero__logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-xs);
}

.hero__logo-text {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-gray-dark);
  letter-spacing: 1px;
  text-transform: uppercase;
  border-bottom: 2px solid var(--color-gray-dark);
  padding-bottom: 2px;
}

.hero__logo-img {
  width: 60px;
  height: auto;
  margin-left: 0;
}

/* Hero Content */
.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: flex-start;
  margin-bottom: 0;
  padding-bottom: var(--spacing-xxl);
}

.hero__text {
  max-width: 560px;
  padding-top: var(--spacing-md);
}

.hero__title {
  font-family: var(--font-family);
  font-size: var(--font-size-h1);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-md);
}

.hero__subtitle {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-md);
}

.hero__cta {
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-dark);
}

.hero__image {
  display: flex;
  justify-content: flex-end;
  align-items: flex-end;
  position: relative;
}

.hero__image img {
  max-width: 550px;
  height: auto;
  object-fit: contain;
  position: relative;
  bottom: -32px;
}

/* Hero Buttons (Cards) - centered below hero */
.hero__buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-md);
  background-color: var(--color-white);
}

.card {
  background-color: var(--color-blue-card);
  border-radius: var(--border-radius);
  padding: 80px var(--spacing-lg);
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.card:active {
  transform: translateY(-2px);
}

.card__text {
  font-size: 22px;
  font-weight: 400;
  color: var(--color-gray-dark);
  text-align: center;
}

/* ========================================
   How to Start Section
   ======================================== */
.how-to-start {
  background-color: var(--color-white);
  padding: var(--spacing-xxl) 0;
}

.how-to-start__container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.how-to-start__title {
  font-family: var(--font-family);
  font-size: var(--font-size-h2);
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-md);
}

.how-to-start__text {
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-gray-dark);
  max-width: 800px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background-color: var(--color-footer);
  padding: var(--spacing-xl) 0;
  color: var(--color-white);
}

.footer__container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.footer__content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

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

.footer__logo img {
  width: 40px;
  height: auto;
  filter: brightness(0) invert(1);
}

.footer__logo-text {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-white);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__link {
  font-size: 13px;
  color: var(--color-white);
}

.footer__info {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-white);
}

.footer__info p {
  margin-bottom: var(--spacing-xs);
}

.footer__copyright {
  margin-top: var(--spacing-sm);
  font-weight: 500;
}

/* ========================================
   Static Pages (About, Privacy)
   ======================================== */
.page-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-md);
  background-color: var(--color-white);
  min-height: 60vh;
}

.page-content h1 {
  font-family: var(--font-family);
  font-size: var(--font-size-h1);
  font-weight: 400;
  margin-bottom: var(--spacing-lg);
  color: var(--color-gray-dark);
}

.page-content h2 {
  font-family: var(--font-family);
  font-size: var(--font-size-h2);
  font-weight: 400;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-dark);
}

.page-content p {
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
  color: var(--color-gray-medium);
}

.page-content ul {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.page-content li {
  margin-bottom: var(--spacing-sm);
  line-height: 1.8;
  color: var(--color-gray-medium);
}

.page-content .btn {
  display: inline-block;
  background-color: var(--color-blue-card);
  color: var(--color-gray-dark);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 12px;
  font-size: 16px;
  margin-top: var(--spacing-lg);
  transition: transform var(--transition-normal);
}

.page-content .btn:hover {
  transform: translateY(-2px);
  opacity: 1;
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet (768px - 1023px) */
@media (max-width: 1023px) {
  :root {
    --font-size-h1: 40px;
    --font-size-h2: 32px;
  }

  .hero__content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .hero__image {
    justify-content: center;
  }

  .hero__image img {
    max-width: 400px;
  }

  .hero__buttons {
    grid-template-columns: 1fr;
    max-width: 600px;
  }

  .footer__content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

/* Mobile (320px - 767px) */
@media (max-width: 767px) {
  :root {
    --font-size-h1: 32px;
    --font-size-h2: 28px;
    --font-size-body: 16px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 40px;
  }

  .hero__container {
    padding: var(--spacing-sm) var(--spacing-sm);
  }

  .hero__logo-img {
    width: 50px;
  }

  .hero__content {
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-lg);
  }

  .hero__title {
    font-size: 28px;
  }

  .hero__subtitle,
  .hero__cta {
    font-size: 14px;
  }

  .hero__image img {
    max-width: 280px;
  }

  .hero__buttons {
    gap: var(--spacing-md);
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .card {
    min-height: 180px;
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .card__text {
    font-size: 18px;
  }

  .how-to-start {
    padding: var(--spacing-xl) 0;
  }

  .how-to-start__title {
    font-size: 24px;
  }

  .how-to-start__text {
    font-size: 16px;
  }

  .footer {
    padding: var(--spacing-lg) 0;
  }

  .page-content {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .page-content h1 {
    font-size: 28px;
  }

  .page-content h2 {
    font-size: 24px;
  }
}

/* Small Mobile (320px - 480px) */
@media (max-width: 480px) {
  .hero__image img {
    max-width: 240px;
  }
}

/* ========================================
   Accessibility
   ======================================== */
.card:focus-visible {
  outline: 3px solid var(--color-gray-dark);
  outline-offset: 4px;
}

a:focus-visible {
  outline: 2px solid var(--color-gray-dark);
  outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}