/* 
Kafel Landing Page Styles
Pixel-accurate conversion from Figma design with RTL support, accessibility, and responsive behavior
Uses CSS custom properties, BEM methodology, and logical properties for internationalization
*/

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

/* CSS Custom Properties */
:root {
  /* Colors */
  --color-primary: #4ade80;
  --color-primary-dark: #22c55e;
  --color-dark: #1a1a1a;
  --color-dark-secondary: #2a2a2a;
  --color-white: #ffffff;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-300: #d4d4d4;
  --color-gray-400: #a3a3a3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-700: #404040;
  --color-gray-800: #262626;
  --color-gray-900: #171717;

  /* Typography */
  --font-family-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;

  /* 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-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;
  --spacing-32: 8rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Container */
  --container-max-width: 1280px;
  --container-padding: var(--spacing-6);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* Font Face Declarations */
@font-face {
  font-family: "Inter";
  src: url("assets/fonts/Roboto-VariableFont_wdth,wght.ttf") format("Roboto");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("assets/fonts/Roboto-VariableFont_wdth,wght.ttf") format("Roboto");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("assets/fonts/Roboto-VariableFont_wdth,wght.ttf") format("Roboto");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("assets/fonts/Roboto-VariableFont_wdth,wght.ttf") format("Roboto");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* Base Styles */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-gray-900);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  inset-inline-start: var(--spacing-6);
  background: var(--color-dark);
  color: var(--color-white);
  padding: var(--spacing-2) var(--spacing-4);
  text-decoration: none;
  border-radius: var(--radius-md);
  z-index: 1000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--spacing-6);
}

/* Container */
.container {
  max-width: 80%;/*var(--container-max-width);*/
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  inset-inline: 0;
  background: var(--color-white);
  border-block-end: 1px solid var(--color-gray-200);
  z-index: 100;
  backdrop-filter: blur(8px);
}

.header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  block-size: 80px;
}

.header__logo img {
  block-size: auto;
}

/* Navigation */
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
  list-style: none;
}

.nav__link {
  color: var(--color-gray-600);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
  position: relative;
  padding: 8px 12px;
  border-radius: 50px;
}

.nav__link:hover,
.nav__link:focus {
  color: var(--color-gray-900);
  background-color: #f3f3f3;
}

.nav__link--active {
  color: var(--color-gray-900);
}

.nav__link--active::after {
  content: "";
  position: absolute;
  inset-block-end: -8px;
  inset-inline-start: 0;
  inline-size: 100%;
  block-size: 2px;
  /*background: var(--color-primary);*/
  border-radius: var(--radius-full);
}

/* Header Controls */
.header__controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

/* Language Selector */
.language-selector__select {
  background: var(--color-gray-100);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.language-selector__select:hover,
.language-selector__select:focus {
  border-color: var(--color-primary);
  outline: none;
}

/* Theme Toggle */
.theme-toggle {
  background: var(--color-gray-800);
  border: none;
  border-radius: var(--radius-full);
  inline-size: 48px;
  block-size: 24px;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  position: relative;
}

.theme-toggle:hover {
  background: var(--color-gray-700);
}

.theme-toggle__track {
  display: block;
  inline-size: 100%;
  block-size: 100%;
  position: relative;
}

.theme-toggle__thumb {
  position: absolute;
  top: 2px;
  inset-inline-start: 2px;
  inline-size: 20px;
  block-size: 20px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast);
}

.theme-toggle[aria-pressed="true"] .theme-toggle__thumb {
  transform: translateX(24px);
}

:root[dir="rtl"] .theme-toggle[aria-pressed="true"] .theme-toggle__thumb {
  transform: translateX(-24px);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-2);
}

.mobile-menu-toggle__line {
  inline-size: 24px;
  block-size: 2px;
  background: var(--color-gray-900);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
  padding-block: calc(80px + var(--spacing-5)) var(--spacing-20);
  /*background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-gray-800) 100%);*/
  color: var(--color-white);
  overflow: hidden;
}

.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
  align-items: center;
  padding: 50px 50px;
  /*max-width: 85%;*/
  
  background-image: linear-gradient(to bottom right, #000000, #045221);
  /*linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-gray-800) 100%);*/
  border-radius: var(--radius-lg);
}

.hero__subtitle {
  color: var(--color-primary);
  font-size: var(--font-size-1xl);
  font-weight: var(--font-weight-semibold);
  /*text-transform: uppercase;*/
  letter-spacing: 0.05em;
  margin-block-end: var(--spacing-4);
}

.hero__title {
  font-size: var(--font-size-4xl);
  /*font-weight: var(--font-weight-bold);*/
  line-height: var(--line-height-tight);
  margin-block-end: var(--spacing-6);
  text-wrap: balance;
}

.hero__description {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-gray-300);
  margin-block-end: var(--spacing-8);
  text-wrap: pretty;
}

.hero__cta {
  display: flex;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__phone {
  max-inline-size: 100%;
  block-size: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* App Store Buttons */
.app-store-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3) var(--spacing-6);
  background: var(--color-white);
  color: var(--color-gray-900);
  text-decoration: none;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.app-store-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.app-store-btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Services Section */
.services {
  padding-block: var(--spacing-20);
  background: var(--color-white);
  /*background-image: url(assets/Vector.png);*/
}

.services__header {
  text-align: center;
  margin-block-end: var(--spacing-16);
}

.services__subtitle {
  color: var(--color-gray-900);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  /*text-transform: uppercase;*/
  letter-spacing: 0.05em;
  margin-block-end: var(--spacing-4);
}

.services__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-gray-900);
  max-inline-size: 800px;
  margin-inline: auto;
  text-wrap: balance;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-8);
}

/* Service Card */
.service-card {
  text-align: center;
  padding: var(--spacing-10) var(--spacing-8);
  border-radius: var(--radius-xl);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.service-card__icon {
  margin-block-end: var(--spacing-6);
}

.service-card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-block-end: var(--spacing-4);
}

.service-card__description {
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
  text-wrap: pretty;
}

/* Features Section */
.features {
  padding-block: var(--spacing-20);
  background: var(--color-gray-900);
  color: var(--color-white);
}

.features__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
  align-items: center;
}

.features__subtitle {
  color: var(--color-primary);
  font-size: var(--font-size-1xl);
  font-weight: var(--font-weight-semibold);
  /*text-transform: uppercase;*/
  letter-spacing: 0.05em;
  margin-block-end: var(--spacing-4);
}

.features__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-block-end: var(--spacing-8);
  text-wrap: balance;
}

.features__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.feature-item {
  display: flex;
  gap: var(--spacing-4);
  align-items: flex-start;
}

.feature-item__icon {
  flex-shrink: 0;
  inline-size: 48px;
  block-size: 48px;
  /*background: var(--color-primary);*/
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-item__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-block-end: var(--spacing-2);
}

.feature-item__description {
  color: var(--color-gray-300);
  line-height: var(--line-height-relaxed);
}

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

.features__phone {
  max-inline-size: 100%;
  block-size: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.5));
}

/* Getting Started Section */
.getting-started {
  padding-block: var(--spacing-20);
  background: var(--color-white);
}

.getting-started__header {
  text-align: center;
  margin-block-end: var(--spacing-16);
}

.getting-started__subtitle {
  color: var(--color-primary);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  /*text-transform: uppercase;*/
  letter-spacing: 0.05em;
  margin-block-end: var(--spacing-4);
}

.getting-started__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-gray-900);
  max-inline-size: 800px;
  margin-inline: auto;
  text-wrap: balance;
}

.getting-started__steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-8);
}

/* Step */
.lower-step{
	margin-top: 42px;
}
.upper-step{
	margin-bottom: 42px;
}

.step {
  text-align: center;
  padding: var(--spacing-6);
  position: relative;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-lg);
  margin-left: 42px;
}

.step__number {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  background: var(--color-gray-100);
  inline-size: 48px;
  block-size: 48px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
  margin-block-end: var(--spacing-6);
}

.step__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-900);
  margin-block-end: var(--spacing-4);
}

.step__description {
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
  text-wrap: pretty;
  margin-block-end: var(--spacing-6);
}

.step__visual {
  display: flex;
  justify-content: center;
}

/* CTA Section */
.cta {
  padding-block: var(--spacing-20);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
}

.cta__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
  align-items: center;
}

.cta__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-block-end: var(--spacing-6);
  text-wrap: balance;
}

.cta__description {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  margin-block-end: var(--spacing-8);
  opacity: 0.9;
  text-wrap: pretty;
}

.cta__buttons {
  display: flex;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

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

.cta__phone {
  max-inline-size: 100%;
  block-size: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* Footer */
.footer {
  background: var(--color-gray-900);
  color: var(--color-white);
  padding-block: var(--spacing-16);
}

.footer__content {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr 1fr;
  gap: var(--spacing-8);
  align-items: start;
}

.footer__logo {
  block-size: auto;
}

.footer__nav {
  display: flex;
  gap: var(--spacing-12);
}

.footer__nav-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-block-end: var(--spacing-4);
}

.footer__nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer__nav-link {
  color: var(--color-gray-300);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__nav-link:hover,
.footer__nav-link:focus {
  color: var(--color-white);
}

.footer__contact-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-block-end: var(--spacing-4);
}

.footer__contact-info {
  color: var(--color-gray-300);
  text-decoration: none;
}

.footer__contact-info:hover {
  color: var(--color-gray-300);
  text-decoration: none;
}

.footer__social {
  display: flex;
  gap: var(--spacing-4);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  inline-size: 64px;
  block-size: 64px;
  background: var(--color-gray-800);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 1279px) {
  :root {
    --container-padding: var(--spacing-4);
  }

  .hero__title {
    font-size: var(--font-size-4xl);
  }

  .services__title,
  .features__title,
  .getting-started__title,
  .cta__title {
    font-size: var(--font-size-3xl);
  }
}

@media (max-width: 767px) {
  .nav {
    display: none;
  }

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

  .hero__content,
  .features__content,
  .cta__content {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
    text-align: center;
  }

  .hero__title {
    font-size: var(--font-size-3xl);
  }

  .services__title,
  .features__title,
  .getting-started__title,
  .cta__title {
    font-size: var(--font-size-2xl);
  }

  .hero__cta,
  .cta__buttons {
    justify-content: center;
  }

  .footer__content {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
    text-align: center;
  }

  .footer__nav {
    justify-content: center;
  }

  .footer__social {
    justify-content: center;
  }
}

/* RTL Support */
:root[dir="rtl"] .nav__link--active::after {
  inset-inline-end: 0;
  inset-inline-start: auto;
}

:root[dir="rtl"] .feature-item {
  flex-direction: row-reverse;
}

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

  html {
    scroll-behavior: auto;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --color-gray-300: #999999;
    --color-gray-600: #666666;
  }
}

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

/* Print Styles */
@media print {
  .header,
  .footer,
  .hero__cta,
  .cta__buttons {
    display: none;
  }

  body {
    color: black;
    background: white;
  }
}