/* ==============================
   AURA - Global Styles
   ============================== */

:root {
  --bg-primary: #07070d;
  --bg-secondary: #0d0d1a;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(124, 58, 237, 0.4);
  --text-primary: #f0f0ff;
  --text-secondary: #8888aa;
  --text-muted: #55556a;
  --accent: #7c3aed;
  --accent-light: #9d5ff3;
  --accent-glow: rgba(124, 58, 237, 0.3);
  --accent-pink: #ec4899;
  --accent-blue: #3b82f6;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.2);
  --font-main: 'Inter', system-ui, sans-serif;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

/* ── Animated Background */
.bg-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

#particleCanvas {
  position: absolute;
  inset: 0;
  opacity: 0.4;
}

.bg-gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 20s infinite ease-in-out;
}

.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
  top: -200px; left: -100px;
}

.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
  bottom: -150px; right: -100px;
  animation-delay: -7s;
}

.orb-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  top: 50%; left: 50%;
  animation-delay: -14s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 30px) scale(0.95); }
}

/* ── Navbar */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(7, 7, 13, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
}

.brand-icon {
  color: var(--accent);
  font-size: 1.4rem;
  filter: drop-shadow(0 0 8px var(--accent));
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ── Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #6d28d9);
  color: white;
  border: none;
  border-radius: 12px;
  padding: 10px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5); }
.btn-primary:hover::before { opacity: 1; }
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-ghost:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.15);
}

.btn-large { padding: 14px 32px; font-size: 1rem; border-radius: 14px; }
.btn-full { width: 100%; justify-content: center; }

.glow-pulse {
  animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(124, 58, 237, 0.3); }
  50% { box-shadow: 0 0 40px rgba(124, 58, 237, 0.6), 0 0 60px rgba(236, 72, 153, 0.2); }
}

/* ── Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  position: relative;
  z-index: 1;
  gap: 80px;
  flex-wrap: wrap;
}

.hero-content {
  max-width: 560px;
  flex: 1;
  min-width: 300px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(124, 58, 237, 0.12);
  border: 1px solid rgba(124, 58, 237, 0.3);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.8rem;
  color: var(--accent-light);
  margin-bottom: 28px;
  font-weight: 500;
}

.badge-dot {
  width: 7px; height: 7px;
  background: var(--success);
  border-radius: 50%;
  animation: blink 2s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-light), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero-preview-url {
  display: inline-flex;
  align-items: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 16px;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
}

.url-prefix { color: var(--text-muted); }
.url-typing { color: var(--accent-light); }
.url-cursor { color: var(--accent); animation: blink 1s infinite; margin-left: 2px; }

/* Hero Preview Cards */
.hero-previews {
  flex: 1;
  min-width: 280px;
  max-width: 360px;
  position: relative;
  height: 380px;
}

.preview-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 200px;
  transition: var(--transition);
  animation: floatCard 6s ease-in-out infinite;
}

.preview-card:hover { transform: translateY(-8px) scale(1.03); z-index: 10; }

.card-1 { top: 0; left: 0; animation-delay: 0s; }
.card-2 { top: 80px; right: 0; animation-delay: -2s; }
.card-3 { bottom: 20px; left: 60px; animation-delay: -4s; }

@keyframes floatCard {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

.preview-avatar {
  width: 60px; height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  box-shadow: 0 0 20px rgba(124,58,237,0.4);
}

.preview-info { text-align: center; }
.preview-name { display: block; font-weight: 700; font-size: 0.95rem; }
.preview-bio { display: block; font-size: 0.75rem; color: var(--text-secondary); margin-top: 2px; }

.preview-links { display: flex; gap: 8px; }

.preview-link {
  width: 32px; height: 32px;
  background: rgba(255,255,255,0.07);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ── Features */
.features {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
}

.container { max-width: 1100px; margin: 0 auto; }

.section-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 48px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(124,58,237,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, rgba(124,58,237,0.2), rgba(236,72,153,0.1));
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.feature-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.feature-card p { color: var(--text-secondary); font-size: 0.875rem; line-height: 1.6; }

/* ── Footer */
.footer {
  text-align: center;
  padding: 40px 24px;
  color: var(--text-muted);
  font-size: 0.85rem;
  position: relative;
  z-index: 1;
}

/* ── Glass Card */
.glass-card {
  background: rgba(13, 13, 26, 0.85);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
}

/* ── Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.active { display: flex; animation: fadeIn 0.3s ease; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  width: 100%;
  max-width: 420px;
  padding: 36px;
  position: relative;
  animation: slideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(30px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 32px; height: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: var(--transition);
}

.modal-close:hover { background: var(--bg-card-hover); color: var(--text-primary); }

.modal-header { text-align: center; margin-bottom: 28px; }

.modal-icon {
  display: block;
  font-size: 2rem;
  color: var(--accent);
  filter: drop-shadow(0 0 10px var(--accent));
  margin-bottom: 12px;
}

.modal-header h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.modal-header p { color: var(--text-secondary); font-size: 0.9rem; }

/* ── Form Styles */
.modal-form { display: flex; flex-direction: column; gap: 18px; }

.form-group { display: flex; flex-direction: column; gap: 8px; }

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.required-badge {
  background: rgba(124, 58, 237, 0.15);
  color: var(--accent-light);
  border: 1px solid rgba(124, 58, 237, 0.3);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.7rem;
  text-transform: none;
  letter-spacing: 0;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  font-size: 0.85rem;
  pointer-events: none;
  z-index: 1;
}

.input-wrapper input {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 44px 12px 38px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-main);
  transition: var(--transition);
  outline: none;
}

.input-wrapper input:focus {
  border-color: var(--accent);
  background: rgba(124,58,237,0.06);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-wrapper input::placeholder { color: var(--text-muted); }

.toggle-pw {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 4px;
  transition: color 0.2s;
}

.toggle-pw:hover { color: var(--text-primary); }

.input-status {
  position: absolute;
  right: 14px;
  font-size: 0.8rem;
}

.input-status.valid { color: var(--success); }
.input-status.invalid { color: var(--danger); }

.username-preview {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 4px 0 0 2px;
}

.url-label { color: var(--text-muted); }
#previewSlug { color: var(--accent-light); font-weight: 600; }

.pw-strength {
  height: 3px;
  background: rgba(255,255,255,0.07);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 4px;
}

.pw-bar {
  height: 100%;
  border-radius: 3px;
  transition: width 0.3s, background 0.3s;
  width: 0%;
}

.form-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.85rem;
  color: #fca5a5;
  display: none;
}

.form-error.show { display: block; }

.form-switch {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.form-switch a {
  color: var(--accent-light);
  text-decoration: none;
  font-weight: 600;
}

.form-switch a:hover { text-decoration: underline; }

/* ── Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(124,58,237,0.4); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(124,58,237,0.7); }

/* ── Responsive */
@media (max-width: 768px) {
  .hero { flex-direction: column; gap: 40px; text-align: center; }
  .hero-cta { justify-content: center; }
  .hero-previews { height: 300px; }
  .preview-card { width: 170px; padding: 16px; }
  .card-2 { right: 10px; }
  .hero-badge { margin: 0 auto 24px; }
}