:root {
  --color-bg: #0d0d0d;
  --color-surface: #1a1a1a;
  --color-black: #000000;
  --color-white: #ffffff;
  --color-text: #f0f0f0;
  --color-text-muted: #999999;
  --color-orange: #ff6b2c;
  --color-blue: #4169e1;
  --color-green: #00c853;
  --color-purple: #9b59b6;
  --color-pink: #ff69b4;
  --color-yellow: #ffd93d;
  --color-red: #ff4757;
  --font-base: "Bricolage Grotesque", system-ui, sans-serif;
  --orange-border: 3px solid var(--color-orange);
  --white-border: 3px solid var(--color-white);
  --orange-shadow: 4px 4px 0 var(--color-orange);
  --orange-shadow-large: 6px 6px 0 var(--color-orange);
  --orange-shadow-hover: 8px 8px 0 var(--color-orange);
}

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

html {
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  line-height: 1.5;
}

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

.sticky-top {
  position: sticky;
  top: 0;
  z-index: 100;
}

.info-banner {
  padding: 0.5rem 1rem;
  background: var(--color-orange);
  color: var(--color-black);
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
}

.info-banner a {
  color: var(--color-black);
  font-weight: 700;
  text-decoration: underline;
}

.info-banner a:hover {
  opacity: 0.8;
}

.info-banner i {
  margin-right: 0.4rem;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 2rem;
  background: var(--color-surface);
  border-bottom: var(--orange-border);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text);
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
}

.logo img {
  width: 40px;
  height: 40px;
}

nav {
  display: flex;
  gap: 0.5rem;
}

nav a {
  position: relative;
  padding: 0.6rem 1.25rem;
  color: var(--color-text-muted);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition:
    color 0.15s ease,
    opacity 0.15s ease;
}

nav a::after {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--color-orange);
  content: "";
  transform: translateX(-50%);
  transition: width 0.15s ease;
}

nav a:hover {
  color: var(--color-text);
}

nav a:hover::after {
  width: 100%;
}

.external-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.external-nav-link i {
  font-size: 0.8em;
  opacity: 0.8;
}

.header-icons {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.download-btn,
.icon-btn,
.sponsor-btn,
.burger-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  font-family: var(--font-base);
  text-decoration: none;
  transition:
    transform 0.1s ease,
    box-shadow 0.1s ease,
    border-color 0.1s ease,
    color 0.1s ease,
    background-color 0.1s ease;
}

.download-btn {
  height: 42px;
  padding: 0 1.2rem;
  border: 3px solid var(--color-orange);
  background: var(--color-orange);
  box-shadow: 3px 3px 0 var(--color-orange);
  color: var(--color-black);
  font-size: 0.95rem;
  font-weight: 700;
}

.download-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--color-orange);
}

.icon-btn {
  width: 42px;
  height: 42px;
  border: 3px solid var(--color-text);
  background: var(--color-bg);
  box-shadow: 3px 3px 0 var(--color-text);
  color: var(--color-text);
  font-size: 1.25rem;
}

.icon-btn:hover {
  transform: translate(-2px, -2px);
  border-color: var(--color-orange);
  box-shadow: 5px 5px 0 var(--color-orange);
  color: var(--color-orange);
}

.sponsor-btn {
  width: 42px;
  height: 42px;
  border: 3px solid var(--color-pink);
  background: var(--color-pink);
  box-shadow: 3px 3px 0 var(--color-pink);
  color: var(--color-black);
  font-size: 1.1rem;
}

.sponsor-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--color-pink);
}

.burger-btn {
  display: none;
  width: 42px;
  height: 42px;
  border: 3px solid var(--color-text);
  background: var(--color-bg);
  box-shadow: 3px 3px 0 var(--color-text);
  color: var(--color-text);
  font-size: 1.25rem;
  cursor: pointer;
}

.burger-btn:hover {
  transform: translate(-2px, -2px);
  border-color: var(--color-orange);
  box-shadow: 5px 5px 0 var(--color-orange);
  color: var(--color-orange);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  border: var(--orange-border);
  cursor: pointer;
  font-family: var(--font-base);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  transition:
    transform 0.1s ease,
    box-shadow 0.1s ease,
    border-color 0.1s ease,
    color 0.1s ease,
    background-color 0.1s ease;
}

.btn-primary {
  background: var(--color-orange);
  box-shadow: var(--orange-shadow);
  color: var(--color-black);
}

.btn-primary:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--orange-shadow-hover);
}

.btn-secondary {
  border-color: var(--color-text);
  background: transparent;
  box-shadow: 4px 4px 0 var(--color-text);
  color: var(--color-text);
}

.btn-secondary:hover {
  transform: translate(-3px, -3px);
  background: var(--color-text);
  box-shadow: 7px 7px 0 var(--color-text);
  color: var(--color-black);
}

.btn-large {
  padding: 1.25rem 2rem;
  font-size: 1.1rem;
}

.section-title {
  margin-bottom: 3rem;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  text-align: center;
}

.section-title .highlight {
  display: inline-block;
  padding: 0 0.2em;
  border: 2px solid var(--color-orange);
  background: var(--color-orange);
  color: var(--color-black);
}

.color-orange {
  --accent: var(--color-orange);
  --accent-text: var(--color-black);
}

.color-blue {
  --accent: var(--color-blue);
  --accent-text: var(--color-white);
}

.color-green {
  --accent: var(--color-green);
  --accent-text: var(--color-black);
}

.color-purple {
  --accent: var(--color-purple);
  --accent-text: var(--color-white);
}

.color-pink {
  --accent: var(--color-pink);
  --accent-text: var(--color-black);
}

.color-yellow {
  --accent: var(--color-yellow);
  --accent-text: var(--color-black);
}

.cta {
  max-width: 900px;
  margin: 0 auto;
  padding: 5rem 2rem;
}

.cta-card {
  padding: 4rem 3rem;
  border: var(--orange-border);
  background: var(--color-surface);
  box-shadow: var(--orange-shadow-large);
  text-align: center;
}

.cta-card h2 {
  margin-bottom: 1rem;
  color: var(--color-orange);
  font-size: 2.5rem;
  font-weight: 800;
}

.cta-card p {
  margin-bottom: 2rem;
  color: var(--color-text-muted);
  font-size: 1.2rem;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

footer {
  margin-top: 0;
  padding: 3rem 2rem 2rem;
  border-top: var(--orange-border);
  background: var(--color-surface);
  color: var(--color-text);
}

.footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto 2rem;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 800;
}

.footer-brand img {
  width: 32px;
  height: 32px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-links a {
  color: var(--color-text);
  font-weight: 500;
  text-decoration: none;
  opacity: 0.8;
  transition:
    color 0.15s ease,
    opacity 0.15s ease;
}

.footer-links a:hover {
  color: var(--color-orange);
  opacity: 1;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #333333;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  text-align: center;
}

.footer-bottom a {
  color: inherit;
  text-decoration: underline;
}

@media (max-width: 768px) {
  header {
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
  }

  .logo {
    flex-shrink: 0;
    font-size: 1.25rem;
  }

  .logo img {
    width: 32px;
    height: 32px;
  }

  .burger-btn {
    display: inline-flex;
    width: 38px;
    height: 38px;
    margin-left: auto;
    box-shadow: none;
    font-size: 1.1rem;
  }

  nav {
    display: none;
    order: 3;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding-top: 0.5rem;
    border-top: 2px solid var(--color-orange);
  }

  nav a {
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid rgb(255 255 255 / 0.05);
    font-size: 0.95rem;
    white-space: nowrap;
  }

  nav a::after {
    display: none;
  }

  .header-icons {
    display: none;
    order: 4;
    width: 100%;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 0 0.25rem;
  }

  header.nav-open nav,
  header.nav-open .header-icons {
    display: flex;
  }

  .download-btn {
    height: 38px;
    padding: 0 1rem;
    box-shadow: none;
    font-size: 0.9rem;
  }

  .icon-btn,
  .sponsor-btn {
    width: 38px;
    height: 38px;
    box-shadow: none;
    font-size: 1.1rem;
  }

  .footer-main {
    flex-direction: column;
    text-align: center;
  }

  .cta-card {
    padding: 2.5rem 1.5rem;
  }

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

  .cta-buttons .btn {
    justify-content: center;
    width: 100%;
    max-width: 280px;
  }

  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  header {
    gap: 0.5rem;
    padding: 0.5rem;
  }

  .logo {
    gap: 0.3rem;
    font-size: 1rem;
  }

  .logo img {
    width: 26px;
    height: 26px;
  }

  .burger-btn {
    width: 32px;
    height: 32px;
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}