/* LARUN.SPACE - Main Styles */
/* Design System: Black & White Minimalist with Space Theme */

/* ============================================
   CSS VARIABLES (Design Tokens)
   ============================================ */
:root {
  /* Primary - Black & White */
  --space-black: #0a0a0a;
  --space-dark: #121212;
  --space-gray: #1a1a1a;
  --pure-white: #ffffff;
  --off-white: #f5f5f5;
  --medium-gray: #888888;
  --light-gray: #cccccc;
  --border-gray: #2a2a2a;

  /* Accents (subtle cosmic) */
  --cosmic-purple: #6366f1;
  --cosmic-purple-light: #818cf8;
  --star-gold: #fbbf24;
  --nebula-blue: #3b82f6;

  /* Functional */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

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

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);

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

  /* Layout */
  --header-height: 64px;
  --sidebar-width: 280px;
  --max-content-width: 1200px;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  font-weight: 400;
  line-height: 1.6;
  color: var(--pure-white);
  background-color: var(--space-black);
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

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

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

input, textarea {
  font-family: inherit;
  border: none;
  outline: none;
}

ul, ol {
  list-style: none;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 3rem;
  font-weight: 700;
}

h2 {
  font-size: 2.25rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  color: var(--light-gray);
}

.text-mono {
  font-family: var(--font-mono);
}

.text-muted {
  color: var(--medium-gray);
}

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

.text-center {
  text-align: center;
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */
.container {
  width: 100%;
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.flex {
  display: flex;
}

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

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

.flex-col {
  display: flex;
  flex-direction: column;
}

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.grid {
  display: grid;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--off-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background: var(--space-gray);
  border-color: var(--medium-gray);
}

.btn-ghost {
  background: transparent;
  color: var(--light-gray);
}

.btn-ghost:hover {
  color: var(--pure-white);
  background: rgba(255, 255, 255, 0.05);
}

.btn-accent {
  background: var(--cosmic-purple);
  color: var(--pure-white);
}

.btn-accent:hover {
  background: var(--cosmic-purple-light);
  box-shadow: var(--shadow-glow);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
}

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.875rem;
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--space-dark);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--medium-gray);
  box-shadow: var(--shadow-md);
}

.card-highlight {
  border-color: var(--cosmic-purple);
  position: relative;
}

.card-highlight::before {
  content: 'POPULAR';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--cosmic-purple);
  color: var(--pure-white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-gray);
  z-index: 1000;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  font-size: 0.9375rem;
  color: var(--light-gray);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--pure-white);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Mobile menu */
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--pure-white);
  z-index: 1001;
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 10, 0.98);
  backdrop-filter: blur(12px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--transition-normal);
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-menu .nav-link {
  font-size: 1.5rem;
  padding: var(--space-md);
}

.mobile-menu .nav-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.mobile-menu .nav-actions .btn {
  min-width: 200px;
}

@media (max-width: 768px) {
  .nav .nav-links,
  .nav .nav-actions {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--header-height) + var(--space-3xl)) var(--space-lg) var(--space-3xl);
  position: relative;
}

.hero-content {
  max-width: 800px;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--cosmic-purple-light);
  margin-bottom: var(--space-xl);
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--pure-white) 0%, var(--light-gray) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--medium-gray);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-tagline {
  font-size: 1.5rem;
  color: var(--light-gray);
  font-style: italic;
  margin-bottom: var(--space-2xl);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: var(--space-3xl) var(--space-lg);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.section-subtitle {
  color: var(--medium-gray);
  max-width: 600px;
  margin: 0 auto;
}

/* How It Works */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.step {
  text-align: center;
  padding: var(--space-xl);
}

.step-number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--space-gray);
  border: 1px solid var(--border-gray);
  border-radius: 50%;
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 auto var(--space-md);
}

.step-title {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
}

.step-desc {
  font-size: 0.875rem;
  color: var(--medium-gray);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--space-dark);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.feature:hover {
  border-color: var(--cosmic-purple);
  transform: translateY(-2px);
}

.feature-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius-md);
  color: var(--cosmic-purple-light);
}

.feature-content h4 {
  margin-bottom: var(--space-xs);
}

.feature-content p {
  font-size: 0.875rem;
  color: var(--medium-gray);
}

/* Audience Section */
.audience-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

.audience-tag {
  padding: var(--space-sm) var(--space-lg);
  background: var(--space-gray);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
}

/* ============================================
   PRICING CARDS
   ============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--space-dark);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--cosmic-purple);
  position: relative;
  transform: scale(1.02);
}

.pricing-card.featured::before {
  content: 'MOST POPULAR';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--cosmic-purple);
  color: var(--pure-white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-tier {
  font-size: 0.875rem;
  color: var(--cosmic-purple-light);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.pricing-amount {
  font-size: 3rem;
  font-weight: 700;
}

.pricing-period {
  color: var(--medium-gray);
}

.pricing-features {
  flex: 1;
  margin-bottom: var(--space-xl);
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  color: var(--light-gray);
  font-size: 0.9375rem;
}

.pricing-feature svg {
  flex-shrink: 0;
  color: var(--success);
}

.pricing-cta {
  width: 100%;
}

/* Enterprise Card */
.enterprise-card {
  background: linear-gradient(135deg, var(--space-dark) 0%, var(--space-gray) 100%);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  text-align: center;
  max-width: 800px;
  margin: var(--space-2xl) auto 0;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--border-gray);
  padding: var(--space-2xl) var(--space-lg);
  background: var(--space-dark);
}

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

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

.footer-link {
  font-size: 0.875rem;
  color: var(--medium-gray);
}

.footer-link:hover {
  color: var(--pure-white);
}

.footer-copy {
  font-size: 0.875rem;
  color: var(--medium-gray);
}

/* ============================================
   FORMS
   ============================================ */
.input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: var(--space-gray);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-lg);
  color: var(--pure-white);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.input:focus {
  border-color: var(--cosmic-purple);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.input::placeholder {
  color: var(--medium-gray);
}

/* ============================================
   MODALS
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal {
  background: var(--space-dark);
  border: 1px solid var(--border-gray);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  max-width: 450px;
  width: 90%;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--medium-gray);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  color: var(--pure-white);
  background: var(--space-gray);
}

/* ============================================
   UTILITIES
   ============================================ */
.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .section {
    padding: var(--space-2xl) var(--space-md);
  }

  .hero {
    padding-top: calc(var(--header-height) + var(--space-2xl));
    min-height: auto;
    padding-bottom: var(--space-2xl);
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-tagline {
    font-size: 1.25rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  /* Steps grid mobile */
  .steps-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .step {
    padding: var(--space-md);
  }

  /* Features grid mobile */
  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature {
    padding: var(--space-md);
  }

  /* Audience tags mobile */
  .audience-tags {
    gap: var(--space-sm);
  }

  .audience-tag {
    font-size: 0.875rem;
    padding: var(--space-xs) var(--space-md);
  }

  /* Pricing grid mobile */
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .pricing-card {
    padding: var(--space-lg);
  }

  .pricing-card.featured {
    transform: none;
  }

  .pricing-amount {
    font-size: 2.5rem;
  }

  /* Footer mobile */
  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
  }

  /* Modal mobile */
  .modal {
    width: 95%;
    padding: var(--space-lg);
    max-height: 90vh;
    overflow-y: auto;
  }
}

/* Small mobile devices */
@media (max-width: 480px) {
  :root {
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
  }

  h1 {
    font-size: 1.875rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .hero-badge {
    font-size: 0.75rem;
  }

  .btn-lg {
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.9375rem;
  }

  .step-number {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}