/* ========================================
   Шезлонгер Landing Page Styles
   Mobile First Approach
   ======================================== */

/* CSS Variables */
:root {
  /* Brand Colors */
  --color-primary: #f5a623;
  --color-primary-dark: #e5960f;
  --color-primary-light: #fbd24c;
  
  /* Sea Theme Colors */
  --color-aquamarine: #3d8393;
  --color-aquamarine-light: #5ba3b3;
  --color-sand: #fdedb7;
  --color-sand-light: #fffbf7;
  --color-navy: #1a3a4a;
  --color-navy-light: #2d5a6e;
  
  /* Neutral Colors */
  --color-white: #ffffff;
  --color-gray-100: #f5f6f8;
  --color-gray-200: #e2e5e9;
  --color-gray-300: #d0d4d8;
  --color-gray-400: #9aa0a6;
  --color-gray-500: #6b7280;
  --color-gray-600: #5b6166;
  --color-gray-700: #374151;
  --color-gray-800: #1f2326;
  --color-gray-900: #111827;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.16);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-gray-800);
  background: linear-gradient(180deg, var(--color-sand-light) 0%, var(--color-white) 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

/* ========================================
   Header
   ======================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gray-200);
}

.header__container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  transition: opacity var(--transition-fast);
}

.header__logo:hover {
  opacity: 0.8;
}

.header__logo-img {
  width: 120px;
}

.header__logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-800);
  letter-spacing: -0.02em;
}

.header__burger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
  z-index: 101;
}

.header__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-gray-700);
  border-radius: 2px;
  transition: var(--transition-normal);
}

.header__burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__burger.active span:nth-child(2) {
  opacity: 0;
}

.header__burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.header__nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 300px;
  height: 100vh;
  background: var(--color-white);
  padding: 80px var(--spacing-lg) var(--spacing-lg);
  box-shadow: var(--shadow-xl);
  transition: right var(--transition-slow);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.header__nav.active {
  right: 0;
}

.header__partner-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 2px solid var(--color-aquamarine);
  border-radius: var(--radius-full);
  color: var(--color-aquamarine);
  font-weight: 600;
  font-size: 0.875rem;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.header__partner-btn:hover {
  background: var(--color-aquamarine);
  color: var(--color-white);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  padding: var(--spacing-2xl) var(--spacing-md);
  text-align: center;
}

.hero__container {
  max-width: 800px;
  margin: 0 auto;
}

.hero__title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

.hero__subtitle {
  font-size: 1rem;
  color: var(--color-gray-600);
  line-height: 1.6;
}

/* ========================================
   Services Section
   ======================================== */
.services {
  padding: 0 var(--spacing-md) var(--spacing-2xl);
}

.services__container {
  max-width: 1280px;
  margin: 0 auto;
}

.services__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

/* ========================================
   Tile Component
   ======================================== */
.tile {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-md);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: all var(--transition-normal);
  cursor: pointer;
  overflow: hidden;
}

.tile--active:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.tile--active:active {
  transform: scale(0.97);
}

.tile--inactive {
  opacity: 0.6;
  cursor: default;
}

.tile--inactive:hover {
  opacity: 0.7;
}

.tile__badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  padding: 2px 8px;
  background: var(--color-gray-400);
  color: var(--color-white);
  font-size: 0.625rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tile__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.tile--inactive .tile__icon {
  color: var(--color-gray-400);
}

.tile__icon svg {
  width: 100%;
  height: 100%;
}

.tile__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-800);
  margin-bottom: var(--spacing-xs);
}

.tile__desc {
  font-size: 0.75rem;
  color: var(--color-gray-500);
  line-height: 1.4;
  display: none;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  margin-top: auto;
  padding: var(--spacing-xl) var(--spacing-md);
  background: var(--color-gray-100);
  border-top: 1px solid var(--color-gray-200);
}

.footer__container {
  max-width: 1280px;
  margin: 0 auto;
  text-align: center;
}

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

.footer__links a {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-aquamarine);
}

.footer__copyright {
  font-size: 0.75rem;
  color: #999999;
  line-height: 1.6;
}

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

.footer__copyright p:last-child {
  margin-bottom: 0;
}

/* ========================================
   Modal
   ======================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal__backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal__content {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  max-width: 360px;
  width: 100%;
  text-align: center;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.modal.active .modal__content {
  transform: scale(1);
}

.modal__close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  padding: var(--spacing-xs);
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.modal__close:hover {
  color: var(--color-gray-700);
}

.modal__icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.modal__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-gray-800);
  margin-bottom: var(--spacing-sm);
}

.modal__text {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: var(--spacing-lg);
}

.modal__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-xl);
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

.modal__btn:hover {
  background: var(--color-primary-dark);
}

/* ========================================
   Tablet Styles (768px+)
   ======================================== */
@media (min-width: 768px) {
  .header__container {
    padding: var(--spacing-md) var(--spacing-xl);
  }
  
  .header__logo-img {
    width: 180px;
  }
  
  .header__logo-text {
    font-size: 1.5rem;
  }
  
  .header__burger {
    display: none;
  }
  
  .header__nav {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    padding: 0;
    box-shadow: none;
    flex-direction: row;
  }
  
  .hero {
    padding: var(--spacing-3xl) var(--spacing-xl);
  }
  
  .hero__title {
    font-size: 2.5rem;
  }
  
  .hero__subtitle {
    font-size: 1.125rem;
  }
  
  .services {
    padding: 0 var(--spacing-xl) var(--spacing-3xl);
  }
  
  .services__title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
  }
  
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
  }
  
  .tile {
    padding: var(--spacing-xl) var(--spacing-lg);
  }
  
  .tile__icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--spacing-md);
  }
  
  .tile__title {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
  }
  
  .tile__desc {
    display: block;
    font-size: 0.8125rem;
  }
  
  .tile__badge {
    font-size: 0.6875rem;
    padding: 3px 10px;
  }
  
  .footer {
    padding: var(--spacing-2xl) var(--spacing-xl);
  }
  
  .footer__links {
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-xl);
  }
  
  .footer__links a {
    font-size: 0.875rem;
  }
  
  .footer__copyright {
    font-size: 0.8125rem;
  }
}

/* ========================================
   Desktop Styles (1024px+)
   ======================================== */
@media (min-width: 1024px) {
  .header__container {
    padding: var(--spacing-lg) var(--spacing-2xl);
  }
  
  .hero {
    padding: var(--spacing-3xl) var(--spacing-2xl) var(--spacing-2xl);
  }
  
  .hero__title {
    font-size: 3rem;
  }
  
  .hero__subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
  }
  
  .services {
    padding: 0 var(--spacing-2xl) var(--spacing-3xl);
  }
  
  .services__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
  }
  
  .tile {
    padding: var(--spacing-xl);
  }
  
  .tile__icon {
    width: 64px;
    height: 64px;
  }
  
  .tile__title {
    font-size: 1.125rem;
  }
  
  .tile__desc {
    font-size: 0.875rem;
  }
  
  .footer__container {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
}

/* ========================================
   Large Desktop Styles (1280px+)
   ======================================== */
@media (min-width: 1280px) {
  .services__grid {
    gap: var(--spacing-xl);
  }
  
  .tile {
    padding: var(--spacing-2xl) var(--spacing-xl);
  }
}

/* ========================================
   Accessibility & Focus States
   ======================================== */
.tile:focus-visible,
.header__partner-btn:focus-visible,
.modal__btn:focus-visible,
.footer__links a:focus-visible {
  outline: 2px solid var(--color-primary);
  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;
  }
}