@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  --bg-dark: #0b0f19;
  --bg-card: rgba(18, 24, 38, 0.75);
  --bg-card-hover: rgba(26, 34, 54, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(99, 102, 241, 0.3);
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.4);
  
  --accent-cyan: #06b6d4;
  --accent-purple: #a855f7;
  --accent-pink: #ec4899;
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  
  --success: #10b981;
  --error: #ef4444;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  
  --shadow-main: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.2);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(6, 182, 212, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(168, 85, 247, 0.08) 0%, transparent 60%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* Header & Nav */
.header-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.logo-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px var(--primary-glow);
  font-size: 1.3rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Layout Containers */
.container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
}

.auth-container {
  max-width: 480px;
  margin: 2rem auto;
}

/* Glassmorphism Cards */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-main);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.glass-card:hover {
  border-color: var(--border-glow);
}

/* Typography */
h1, h2, h3, h4 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-accent {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--primary) 50%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #ffffff;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
  background: linear-gradient(135deg, #4f46e5, #4338ca);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

/* Form Styles */
.form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  padding: 0.9rem 1.1rem;
  background: rgba(11, 15, 25, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 0.95rem;
  transition: all 0.25s ease;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
  background: rgba(11, 15, 25, 0.85);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

/* Alerts */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.alert-success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}

/* Landing Page Styles */
.hero {
  text-align: center;
  padding: 4rem 1rem 3rem;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #a5b4fc;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3.2rem;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Feature Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.12);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
}

@media (max-width: 868px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

.qr-preview-box {
  background: rgba(255, 255, 255, 0.98);
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  display: inline-block;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  margin: 1.5rem 0;
}

.qr-preview-box canvas, .qr-preview-box img {
  display: block;
  margin: 0 auto;
}

/* Phone View Card (Public Message) */
.phone-view-container {
  max-width: 480px;
  margin: 3rem auto;
  text-align: center;
}

.message-box {
  background: rgba(255, 255, 255, 0.03);
  border-left: 4px solid var(--accent-cyan);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
  text-align: left;
  font-size: 1.1rem;
  line-height: 1.6;
  color: #ffffff;
  word-break: break-word;
  white-space: pre-wrap;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-dim);
  font-size: 0.85rem;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}