/* ========================================
   CSS Variables - Matching Valt App Colors
   ======================================== */
:root {
  /* Accent (Orange) */
  --color-accent-100: #ffe2bb;
  --color-accent-200: #ffcc88;
  --color-accent-300: #ffb755;
  --color-accent-400: #ffa122;
  --color-accent-500: #e98805;
  --color-accent-600: #b26a09;

  /* Primary uses accent */
  --color-primary: #ffa122;
  --color-primary-dark: #e98805;
  --color-primary-light: #ffb755;

  /* Background */
  --color-bg: #1a1a1a;
  --color-bg-secondary: #333333;
  --color-bg-tertiary: #4d4d4d;
  --color-bg-card: #262626;

  /* Text */
  --color-text: #fdfdfc;
  --color-text-secondary: #a8a6a4;
  --color-text-muted: #83807c;

  /* Borders */
  --color-border: #3b342b;
  --color-border-light: #544e45;

  /* Semantic */
  --color-success: #22ff22;
  --color-error: #ff5555;

  /* Black from app */
  --color-black: #1f1a14;

  /* Typography - Geist Mono */
  --font-family: 'Geist Mono', 'JetBrains Mono', 'Fira Code', 'SF Mono', Monaco, 'Cascadia Code', monospace;

  /* Spacing */
  --container-max: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 5rem;

  /* Border radius */
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;

  /* Transitions */
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-light);
}

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

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

/* ========================================
   Header & Navigation
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 26, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.logo:hover {
  color: var(--color-text);
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 6px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  transition: color var(--transition);
}

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

.lang-switch {
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  background: transparent;
}

.lang-switch:hover {
  border-color: var(--color-primary);
  color: var(--color-primary) !important;
  background: rgba(255, 161, 34, 0.08);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
  border-radius: 1px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  padding: calc(72px + var(--spacing-2xl)) 0 var(--spacing-2xl);
  text-align: center;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(255, 161, 34, 0.15), transparent),
    var(--color-bg);
}

.hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.hero-mascot {
  width: 600px;
  max-width: 95%;
  height: auto;
  margin: 0 auto var(--spacing-xl);
  display: block;
  border-radius: var(--border-radius-xl);
  filter: drop-shadow(0 16px 48px rgba(255, 161, 34, 0.35));
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .subtitle {
  font-size: 1.1rem;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.02em;
}

.hero .description {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 580px;
  margin: 0 auto var(--spacing-xl);
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-family);
  border-radius: var(--border-radius);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  letter-spacing: 0.01em;
}

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

.btn-primary:hover {
  background: var(--color-primary-light);
  color: var(--color-black);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 161, 34, 0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text-secondary);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.03);
}

.trust-bar {
  margin-top: var(--spacing-lg);
  color: var(--color-text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

/* ========================================
   About Section
   ======================================== */
.about {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-secondary) 30%, var(--color-bg-secondary) 100%);
  position: relative;
}

.about::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-content h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xl);
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.about-text p {
  font-size: 1.1rem;
  line-height: 1.9;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

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

.about-text p.highlight {
  color: var(--color-text);
  font-weight: 500;
  font-size: 1.15rem;
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
  background: rgba(255, 161, 34, 0.08);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  text-align: left;
}

/* ========================================
   Features Section
   ======================================== */
.features {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 15%, var(--color-bg) 100%);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--color-text-secondary);
  max-width: 550px;
  margin: 0 auto;
  font-size: 0.95rem;
}

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

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(255, 161, 34, 0.12);
  border: 1px solid rgba(255, 161, 34, 0.2);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.feature-icon svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  letter-spacing: -0.01em;
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ========================================
   Screenshots Section
   ======================================== */
.screenshots {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-secondary) 15%, var(--color-bg-secondary) 100%);
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.screenshot-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
}

.screenshot-item::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 161, 34, 0);
  transition: all var(--transition);
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.screenshot-item:hover {
  transform: scale(1.02);
  border-color: var(--color-primary);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.screenshot-item:hover::after {
  background: rgba(255, 161, 34, 0.1);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
}

.screenshot-hint {
  position: absolute;
  bottom: var(--spacing-sm);
  right: var(--spacing-sm);
  background: rgba(26, 26, 26, 0.85);
  color: var(--color-text-secondary);
  padding: 4px 10px;
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
}

.screenshot-item:hover .screenshot-hint {
  opacity: 1;
}

.screenshot-hint svg {
  width: 14px;
  height: 14px;
}

/* Lightbox Modal */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.lightbox.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 95vw;
  max-height: 95vh;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: transparent;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--spacing-xs);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-family: var(--font-family);
  font-size: 0.85rem;
}

.lightbox-close:hover {
  color: var(--color-primary);
}

.lightbox-close svg {
  width: 24px;
  height: 24px;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(26, 26, 26, 0.8);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: all var(--transition);
}

.lightbox-nav:hover {
  background: var(--color-primary);
  color: var(--color-black);
  border-color: var(--color-primary);
}

.lightbox-nav svg {
  width: 24px;
  height: 24px;
}

.lightbox-prev {
  left: -60px;
}

.lightbox-next {
  right: -60px;
}

@media (max-width: 768px) {
  .lightbox-prev {
    left: 10px;
  }

  .lightbox-next {
    right: 10px;
  }

  .lightbox-nav {
    padding: var(--spacing-xs);
  }

  .lightbox-nav svg {
    width: 20px;
    height: 20px;
  }
}

/* ========================================
   Download Section
   ======================================== */
.download {
  padding: var(--spacing-2xl) 0;
  text-align: center;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 20%, var(--color-bg) 100%);
}

.download-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-xl);
}

.download-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  min-width: 150px;
  transition: all var(--transition);
  color: var(--color-text);
}

.download-btn:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  color: var(--color-text);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.download-btn svg {
  width: 36px;
  height: 36px;
  color: var(--color-primary);
}

.download-btn span {
  font-weight: 600;
  font-size: 0.9rem;
}

.download-alt {
  margin-top: var(--spacing-lg);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.download-alt a {
  color: var(--color-primary);
}

.risk-reversal {
  margin-top: var(--spacing-lg);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  font-style: italic;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: var(--spacing-xl) 0;
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-brand .logo {
  margin-bottom: var(--spacing-xs);
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-text);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.made-with {
  margin-top: var(--spacing-xs);
}

.heart {
  color: var(--color-error);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

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

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

  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }

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

  .hero {
    padding-top: calc(72px + var(--spacing-xl));
  }

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

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

  .section-header h2 {
    font-size: 1.75rem;
  }

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

  .screenshot-item {
    max-width: 100%;
  }

  .screenshot-item img {
    width: 100%;
    height: auto;
  }

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

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

/* ========================================
   Code/Mono styling touches
   ======================================== */
code, .mono {
  font-family: var(--font-family);
  background: rgba(255, 161, 34, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}