:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent-primary: #3d5afe;
  --accent-secondary: #00e5ff;
  --border-color: rgba(255, 255, 255, 0.1);
  --font-display: 'Syncopate', sans-serif;
  --font-body: 'Outfit', sans-serif;
  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.subheading {
  color: var(--text-secondary);
  font-size: 0.9rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.header {
  text-align: center;
  margin-bottom: 6rem;
  padding-top: 2rem;
}

.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 3rem;
  margin-top: 4rem;
}

/* Components */
.logo-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, border-color 0.3s ease;
  min-height: 400px;
  position: relative;
  overflow: hidden;
}

.logo-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-primary);
}

.logo-label {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-size: 0.7rem;
  color: var(--text-secondary);
  font-family: var(--font-display);
}

.variant-tag {
  position: absolute;
  bottom: 1.5rem;
  right: 1.5rem;
  padding: 0.25rem 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  font-size: 0.7rem;
  color: var(--accent-secondary);
}

/* Logo Styles */
.logo-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Variant 1: Geometric Stack */
.logo-v1 {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.stack-icon {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stack-bar {
  height: 6px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.stack-bar:nth-child(1) { width: 40px; }
.stack-bar:nth-child(2) { width: 32px; background: var(--accent-primary); }
.stack-bar:nth-child(3) { width: 40px; }

.logo-text-v1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.5rem;
  margin-top: 1rem;
}

/* Variant 2: Minimal Monogram */
.logo-v2 {
  position: relative;
  width: 80px;
  height: 80px;
}

.monogram-s {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 4px solid var(--accent-secondary);
  border-radius: 50% 50% 0 50%;
}

.monogram-dot {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 12px;
  height: 12px;
  background: var(--accent-primary);
  border-radius: 50%;
}

/* Variant 3: Brutalist Type */
.logo-v3 {
  text-align: left;
  line-height: 0.8;
}

.logo-v3 .stack {
  font-size: 3rem;
  font-weight: 900;
  display: block;
  -webkit-text-stroke: 1px var(--text-primary);
  color: transparent;
}

.logo-v3 .sense {
  font-size: 3rem;
  font-weight: 900;
  display: block;
  color: var(--text-primary);
}

/* Variant 4: Tech Grid */
.logo-v4 {
  display: grid;
  grid-template-columns: repeat(3, 12px);
  gap: 4px;
}

.grid-dot {
  width: 12px;
  height: 12px;
  background: var(--border-color);
  border-radius: 2px;
}

.grid-dot.active {
  background: var(--accent-secondary);
  box-shadow: 0 0 10px var(--accent-secondary);
}

/* Decorative background elements */
.bg-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(61, 90, 254, 0.1) 0%, transparent 70%);
  top: -200px;
  right: -200px;
  pointer-events: none;
  z-index: -1;
}

.bg-glow-2 {
  position: fixed;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.05) 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
  pointer-events: none;
  z-index: -1;
}

/* Utils */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  background: var(--accent-primary);
  color: white;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 2px;
  border-radius: 4px;
  margin-top: 2rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--accent-secondary);
  color: var(--bg-primary);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
}

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

@media (max-width: 768px) {
  .logo-grid {
    grid-template-columns: 1fr;
  }
}