:root {
  --primary-blue: #345884;
  --black: #000000;
  --white: #ffffff;
  --quicksilver: #a6a6a6;
  --neon-blue: #00d4ff;
  --electric-purple: #6366f1;
  --cyber-green: #10b981;
}

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

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--black);
  color: var(--white);
  overflow-x: hidden;
  cursor: none;
  line-height: 1.6;
}

/* Custom Cursor */
.cursor {
  position: fixed;
  width: 20px;
  height: 20px;
  border: 2px solid var(--neon-blue);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transition: transform 0.1s;
  mix-blend-mode: difference;
}

.cursor-trail {
  position: fixed;
  width: 4px;
  height: 4px;
  background: var(--neon-blue);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
}

/* Holographic Background */
.holo-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
      radial-gradient(circle at 20% 80%, var(--electric-purple) 0%, transparent 50%),
      radial-gradient(circle at 80% 20%, var(--neon-blue) 0%, transparent 50%),
      radial-gradient(circle at 40% 40%, var(--cyber-green) 0%, transparent 50%);
  opacity: 0.03;
  animation: holo-shift 20s ease-in-out infinite;
  z-index: 1;
}

@keyframes holo-shift {
  0%, 100% { transform: rotate(0deg) scale(1); }
  33% { transform: rotate(120deg) scale(1.1); }
  66% { transform: rotate(240deg) scale(0.9); }
}

/* Particle System */
.particle-system {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--neon-blue);
  border-radius: 50%;
  opacity: 0;
  animation: particle-float 8s linear infinite;
}

@keyframes particle-float {
  0% { opacity: 0; transform: translateY(100vh) translateX(0) scale(0); }
  10% { opacity: 1; transform: translateY(90vh) translateX(10px) scale(1); }
  90% { opacity: 1; transform: translateY(10vh) translateX(-10px) scale(1); }
  100% { opacity: 0; transform: translateY(0) translateX(0) scale(0); }
}

/* Main Container */
.vendors-stage {
  position: relative;
  min-height: 100vh;
  padding: 2rem;
  z-index: 10;
}

/* Navigation Header */
.nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(0, 212, 255, 0.3);
}

.back-button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--neon-blue);
  text-decoration: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 8px;
}

.back-button:hover {
  background: rgba(0, 212, 255, 0.1);
  transform: translateX(-3px);
}

.nav-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: 0.1em;
}

/* Vendor Registration */
.vendor-registration {
  max-width: 1000px;
  margin: 0 auto;
}

.registration-header {
  text-align: center;
  margin-bottom: 4rem;
}

.main-title {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, var(--white), var(--neon-blue), var(--electric-purple));
  background-size: 400% 400%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 5s ease infinite;
}

@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.subtitle {
  font-size: 1.2rem;
  color: var(--quicksilver);
  font-weight: 300;
}

/* Form Styling */
.vendor-form {
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 20px;
  padding: 3rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 25px 50px rgba(0,0,0,0.5);
}

.vendor-form::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0,212,255,0.05), transparent);
  animation: scanner 4s linear infinite;
}

@keyframes scanner {
  0% { left: -100%; }
  100% { left: 100%; }
}

.form-section {
  margin-bottom: 3rem;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-header h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.2rem;
  color: var(--neon-blue);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--neon-blue), transparent);
}

.input-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.input-group {
  position: relative;
  transition: transform 0.3s ease;
}

.input-group.full-width {
  grid-column: 1 / -1;
}

.input-label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--neon-blue);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.cyber-input,
.cyber-textarea {
  width: 100%;
  background: rgba(0,0,0,0.5);
  border: 1px solid rgba(163, 163, 163, 0.3);
  border-radius: 10px;
  padding: 1rem 1.5rem;
  color: var(--white);
  font-size: 1rem;
  font-family: 'Space Grotesk', sans-serif;
  transition: all 0.3s ease;
  resize: vertical;
}

.cyber-input:focus,
.cyber-textarea:focus {
  outline: none;
  border-color: var(--neon-blue);
  background: rgba(0,0,0,0.8);
  box-shadow: 0 0 20px rgba(0,212,255,0.3);
  transform: translateY(-2px);
}

.cyber-input::placeholder,
.cyber-textarea::placeholder {
  color: rgba(163, 163, 163, 0.5);
}


/* Availability Calendar */
.availability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.month-block {
  position: relative;
}

.month-block input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.month-label {
  display: block;
  background: rgba(0,0,0,0.6);
  border: 2px solid rgba(163,163,163,0.3);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.month-label::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0,212,255,0.1), transparent);
  transition: left 0.5s ease;
}

.month-label:hover::before {
  left: 100%;
}

.month-label:hover {
  border-color: var(--neon-blue);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0,212,255,0.2);
}

.month-block input:checked + .month-label {
  border-color: var(--cyber-green);
  background: rgba(16,185,129,0.2);
  box-shadow: 0 0 20px rgba(16,185,129,0.3);
}

.month-name {
  font-weight: 600;
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 0.3rem;
}

.month-year {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--quicksilver);
}

.month-block input:checked + .month-label .month-name {
  color: var(--cyber-green);
}

/* Checkbox Styling */

.checkbox-container {
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  position: relative;
  padding: 1rem;
  border-radius: 10px;
  transition: background 0.3s ease;
}

.checkbox-container:hover {
  background: rgba(0,212,255,0.05);
}

.checkbox-container input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.checkmark {
  min-width: 24px;
  min-height: 24px;
  border: 2px solid var(--neon-blue);
  border-radius: 6px;
  position: relative;
  transition: all 0.3s ease;
}

.checkmark::after {
  content: '';
  position: absolute;
  left: 7px;
  top: 3px;
  width: 6px;
  height: 10px;
  border: solid var(--white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.checkbox-container input:checked + .checkmark {
  background: var(--neon-blue);
  border-color: var(--neon-blue);
}

.checkbox-container input:checked + .checkmark::after {
  opacity: 1;
}

.checkbox-text {
  font-size: 1rem;
  color: var(--white);
  font-weight: 500;
}

/* Checkbox Grid Layout */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.section-subtitle {
  color: var(--quicksilver);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  font-style: italic;
}

/* Responsive for checkbox grid */
@media (max-width: 768px) {
  .checkbox-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .checkbox-text {
    font-size: 0.9rem;
  }
}


/* Submit Button */
.form-actions {
  text-align: center;
  margin-top: 3rem;
}

.quantum-button {
  background: linear-gradient(45deg, var(--primary-blue), var(--neon-blue));
  border: none;
  border-radius: 15px;
  padding: 1.5rem 3rem;
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  min-width: 300px;
}

.quantum-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.quantum-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(0,212,255,0.4);
}

.quantum-button:hover::before {
  left: 100%;
}

/* Responsive Design */
@media (max-width: 768px) {
  .vendors-stage {
    padding: 1rem;
  }

  .vendor-form {
    padding: 2rem 1.5rem;
  }

  .input-grid {
    grid-template-columns: 1fr;
  }

  .availability-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }

  .nav-header {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .image-container {
    height: 250px;
  }

  .overlay-content h2 {
    font-size: 1.8rem;
  }

  .quantum-button {
    min-width: auto;
    width: 100%;
    padding: 1.2rem 2rem;
  }
}

@media (max-width: 480px) {
  .main-title {
    font-size: 2rem;
  }

  .availability-grid {
    grid-template-columns: 1fr 1fr;
  }

  .month-label {
    padding: 0.8rem;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .section-line {
    width: 100%;
  }
}