/* ==========================================================================
   Design System & CSS Custom Properties (Based on Figma API Data)
   ========================================================================== */

:root {
  /* Colors - Extracted from Figma API */
  --primary-blue: #2979ff;
  --accent-yellow: #ffea00;
  --white: #ffffff;
  --black: #000000;
  --dark-bg: #1c1c1c;
  --text-secondary: #444756;
  --light-blue: #e9f1fd;
  --mid-blue: #87b9f0;
  --dark-blue: #063891;
  --accent-red: #f72700;
  --gray-light: #c4c4c9;

  /* Typography - From Figma API specifications */
  --font-family: 'Sintony', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-size-hero: 73px;
  --font-size-nav: 41px;
  --font-size-brand: 40px;
  --font-size-body: 20px;
  --font-size-small: 16px;
  --font-size-button: 21px;
  --font-weight-regular: 400;
  --font-weight-bold: 700;
  --line-height-base: 1.3;
  --line-height-hero: 1.3;

  /* Spacing & Layout - From Figma exact measurements */
  --container-max: 1246px;
  --container-padding: 169px;
  --button-radius: 20px;
  --nav-height: 120px;
  --section-spacing: 120px;
  --hero-height: 455px;
  --button-width: 195px;
  --button-height: 51px;
  --logo-size: 90px;

  /* Animation & Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);

  /* Z-index scale */
  --z-header: 100;
  --z-modal: 1000;
  --z-toast: 1100;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scroll-snap-type: y mandatory;
}

body {
  font-family: var(--font-family);
  background-color: var(--dark-bg);
  color: var(--white);
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ==========================================================================
   Layout Containers
   ========================================================================== */

.hero-container,
.about-container,
.contact-container,
.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.header {
  background-color: var(--dark-bg);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  height: var(--nav-height);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-icon {
  width: var(--logo-size);
  height: var(--logo-size);
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-name {
  font-size: var(--font-size-brand);
  font-weight: var(--font-weight-bold);
  color: var(--white);
  letter-spacing: 1px;
}

.brand-tagline {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-regular);
  color: var(--gray-light);
  margin-top: 2px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 60px;
  align-items: center;
}

.nav-link {
  font-size: var(--font-size-nav);
  font-weight: var(--font-weight-regular);
  color: var(--white);
  text-decoration: none;
  text-transform: lowercase;
  transition: color var(--transition-medium);
  position: relative;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--accent-yellow);
  outline: none;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-yellow);
  transition: width var(--transition-medium);
}

.nav-link:hover::after,
.nav-link:focus::after {
  width: 100%;
}

/* ==========================================================================
   Hamburger Menu
   ========================================================================== */

.hamburger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 30px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1000;
}

.hamburger-line {
  width: 30px;
  height: 3px;
  background-color: var(--white);
  border-radius: 3px;
  transition: all var(--transition-medium) ease;
  transform-origin: center;
}

.hamburger-menu[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.hamburger-menu[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger-menu[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
  background-color: var(--dark-bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  scroll-snap-align: start;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  min-height: var(--hero-height);
}

.hero-text {
  max-width: 800px;
}

.hero-headline {
  font-size: clamp(40px, 7vw, var(--font-size-hero));
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-hero);
  color: var(--white);
  margin-bottom: 30px;
  max-width: 700px;
}

.highlight-text {
  color: var(--accent-yellow);
  font-weight: var(--font-weight-bold);
}

.clickable-text {
  cursor: pointer;
  position: relative;
  display: inline-block;
  transition: all var(--transition-medium);
  user-select: none;
}

.clickable-text:hover {
  transform: scale(1.05);
}

.clickable-text:active {
  transform: scale(0.95);
}

/* Click effect animation */
@keyframes wiggle {
  0% { transform: rotate(0deg); }
  20% { transform: rotate(-3deg); }
  40% { transform: rotate(3deg); }
  60% { transform: rotate(-2deg); }
  80% { transform: rotate(1deg); }
  100% { transform: rotate(0deg); }
}

.click-effect {
  animation: wiggle 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Message notification animations */
@keyframes slideInMessage {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideOutMessage {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

.hero-description {
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
  color: var(--white);
  line-height: 1.4;
  margin-bottom: 40px;
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  gap: 40px;
  align-items: center;
}

/* ==========================================================================
   Button Styles (Based on Figma Specifications)
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--button-width);
  height: var(--button-height);
  font-family: var(--font-family);
  font-size: var(--font-size-button);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  border-radius: var(--button-radius);
  transition: all var(--transition-medium) var(--ease-out-quart);
  cursor: pointer;
  border: none;
  text-transform: lowercase;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background-color: var(--primary-blue);
  color: var(--white);
  border: 2px solid var(--primary-blue);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: transparent;
  color: var(--primary-blue);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(41, 121, 255, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--white);
  border: 2px solid var(--accent-yellow);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: var(--accent-yellow);
  color: var(--dark-bg);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 234, 0, 0.3);
}

.btn-large {
  width: auto;
  padding: 0 40px;
  min-width: 280px;
}

.btn:focus {
  outline: 2px solid var(--accent-yellow);
  outline-offset: 2px;
}

/* ==========================================================================
   Hero Image
   ========================================================================== */

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: visible;
  transform: scale(1.4);
}

.hero-illustration {
  width: 100%;
  max-width: none;
  height: auto;
  filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.3));
  transition: transform var(--transition-slow);
}

.hero-illustration:hover {
  transform: scale(1.02) translateY(-5px);
}

/* ==========================================================================
   About Section
   ========================================================================== */

.about-section {
  background-color: var(--dark-bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--section-spacing) 0;
  scroll-snap-align: start;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

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

.about-illustration {
  width: 100%;
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 15px 40px rgba(0, 0, 0, 0.2));
}

.about-text {
  max-width: 600px;
}

.about-headline {
  font-size: 48px;
  font-weight: var(--font-weight-bold);
  color: var(--white);
  margin-bottom: 30px;
  line-height: 1.2;
}

.about-intro {
  font-size: 24px;
  font-weight: var(--font-weight-regular);
  color: var(--white);
  margin-bottom: 25px;
  line-height: 1.4;
}

.brand-highlight {
  color: var(--primary-blue);
  font-weight: var(--font-weight-bold);
}

.about-description,
.about-mission,
.about-services {
  font-size: var(--font-size-small);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 20px;
  line-height: 1.6;
}

.about-cta {
  margin-top: 40px;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact-section {
  background-color: var(--dark-bg);
  padding: var(--section-spacing) 0;
  text-align: center;
  min-height: 100vh;
  display: flex;
  align-items: center;
  scroll-snap-align: start;
}

.contact-headline {
  font-size: 48px;
  font-weight: var(--font-weight-bold);
  color: var(--white);
  margin-bottom: 20px;
}

.contact-description {
  font-size: var(--font-size-body);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
}

/* ==========================================================================
   Contact Form Styles
   ========================================================================== */

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  text-align: left;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 16px;
  font-weight: var(--font-weight-bold);
  color: var(--white);
  margin-bottom: 8px;
  cursor: pointer;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 16px;
  font-family: var(--font-family);
  font-size: 16px;
  color: var(--white);
  background-color: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--button-radius);
  transition: all var(--transition-medium);
  box-sizing: border-box;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-blue);
  background-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 0 3px rgba(41, 121, 255, 0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.5;
}

.form-select {
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24'%3E%3Cpath stroke='%23ffffff' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 20px;
  padding-right: 50px;
  appearance: none;
}

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

.form-submit {
  margin-top: 32px;
  align-self: flex-end;
  margin-left: auto;
  display: block;
}

.hidden {
  display: none;
}

/* Form validation styles */
.form-input:invalid:not(:focus):not(:placeholder-shown),
.form-textarea:invalid:not(:focus):not(:placeholder-shown),
.form-select:invalid:not(:focus) {
  border-color: var(--accent-red);
  background-color: rgba(247, 39, 0, 0.1);
}

/* Form hover states */
.form-input:hover:not(:focus),
.form-textarea:hover:not(:focus),
.form-select:hover:not(:focus) {
  border-color: rgba(255, 255, 255, 0.4);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background-color: var(--dark-bg);
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-text {
  text-align: center;
  font-size: 14px;
  color: var(--gray-light);
}

/* ==========================================================================
   Animations & Scroll Effects
   ========================================================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.8s var(--ease-out-quart) forwards;
}

/* ==========================================================================
   Responsive Design - Mobile First Approach
   ========================================================================== */

/* Tablet Styles */
@media (max-width: 768px) {
  :root {
    --font-size-hero: 52px;
    --font-size-nav: 32px;
    --font-size-brand: 32px;
    --container-padding: 40px;
    --logo-size: 70px;
    --nav-height: 80px;
  }

  /* Disable snap scrolling on mobile for better text readability */
  html {
    scroll-snap-type: none;
  }

  .hero-section,
  .about-section,
  .contact-section {
    scroll-snap-align: none;
    min-height: auto;
  }

  .hero-section {
    min-height: 100vh;
  }

  .nav-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
  }

  .logo-section {
    flex-shrink: 1;
    min-width: 0;
    max-width: 280px;
    overflow: hidden;
    margin-left: 5px;
  }

  .brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
  }

  .brand-name {
    font-size: 16px;
    letter-spacing: 0.5px;
  }

  .hamburger-menu {
    display: flex;
    flex-shrink: 0;
    margin-left: auto;
    width: 20px;
    height: 20px;
    margin-right: 15px;
  }

  .hamburger-line {
    width: 20px;
    height: 2px;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100vw;
    background-color: var(--dark-bg);
    flex-direction: column;
    padding: 40px 20px;
    gap: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 999;
    transform: translateY(-100%);
    transition: transform var(--transition-medium);
    box-sizing: border-box;
  }

  .nav-links.show {
    display: flex;
    transform: translateY(0);
  }

  .nav-links li {
    text-align: center;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 60px;
    text-align: center;
  }

  .hero-text {
    order: 2;
    max-width: 100%;
  }

  .hero-image {
    order: 1;
  }

  .cta-buttons {
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 60px;
    text-align: center;
  }

  .about-image {
    order: -1;
  }

  .about-headline {
    font-size: 36px;
  }

  .contact-headline {
    font-size: 36px;
  }
}

/* Mobile Styles */
@media (max-width: 480px) {
  :root {
    --font-size-hero: 40px;
    --font-size-nav: 28px;
    --font-size-brand: 24px;
    --font-size-body: 18px;
    --button-width: 180px;
    --button-height: 45px;
    --logo-size: 50px;
    --nav-height: 70px;
  }

  /* Force no horizontal overflow */
  html, body {
    overflow-x: hidden !important;
    max-width: 100vw !important;
  }

  * {
    max-width: 100vw;
    box-sizing: border-box;
  }

  .brand-tagline {
    font-size: 12px;
  }

  .nav-container {
    padding: 10px 0px;
    margin: 0;
  }

  .logo-section {
    gap: 8px;
    justify-self: flex-start;
  }

  .logo-icon {
    width: 40px;
    height: 40px;
  }

  .nav-links {
    gap: 25px;
  }

  .hero-container,
  .about-container,
  .contact-container,
  .footer-container {
    padding: 0 5px;
  }

  .hero-content {
    gap: 40px;
  }

  .hero-image {
    transform: scale(1.1);
    max-width: 100vw;
    overflow: hidden;
  }

  .hero-illustration {
    max-width: 100%;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
    gap: 15px;
  }

  .btn {
    width: 100%;
    max-width: 280px;
  }

  .about-headline {
    font-size: 32px;
  }

  .contact-headline {
    font-size: 32px;
  }

  .about-intro {
    font-size: 20px;
  }
}

/* Ultra-wide screens */
@media (min-width: 1600px) {
  :root {
    --container-max: 1400px;
    --font-size-hero: 84px;
  }

  .hero-content,
  .about-content {
    gap: 120px;
  }
}

/* ==========================================================================
   Accessibility & Performance
   ========================================================================== */

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

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --white: #ffffff;
    --dark-bg: #000000;
    --primary-blue: #0066ff;
    --accent-yellow: #ffff00;
  }
}

/* Prevent image dragging */
img {
  -webkit-user-drag: none;
  -khtml-user-drag: none;
  -moz-user-drag: none;
  -o-user-drag: none;
  user-drag: none;
  pointer-events: none;
}

/* Focus indicators for keyboard navigation */
.btn:focus-visible,
.nav-link:focus-visible {
  outline: 3px solid var(--accent-yellow);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .header,
  .cta-buttons,
  .about-cta,
  .contact-cta {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .hero-section,
  .about-section,
  .contact-section {
    page-break-inside: avoid;
  }
}