/* 
   LoveRush – Modern Redesign (Glassmorphism & Vibrant Theme)
   ============================================================ */

:root {
  --bg-base:        #08080a;
  --bg-surface:     rgba(22, 22, 26, 0.7);
  --bg-card:        rgba(30, 30, 36, 0.8);
  --bg-input:       rgba(37, 37, 48, 0.6);
  --border:         rgba(255, 255, 255, 0.08);
  --border-focus:   #ff4d8d;

  /* Vibrant Gradient Colors */
  --accent-start:   #ff2d78;
  --accent-end:     #ff6b52;
  --accent:         #ff2d78;
  --accent-light:   rgba(255, 45, 120, 0.2);
  
  --text-primary:   #ffffff;
  --text-secondary: #b0b0c0;
  --text-muted:     #6a6a80;

  --glass-blur:     12px;
  --radius-sm:      12px;
  --radius-md:      18px;
  --radius-lg:      28px;
  --radius-full:    9999px;

  --shadow-glow:    0 0 20px rgba(255, 45, 120, 0.3);
  --transition:     0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: 'Montserrat', sans-serif;
  background: radial-gradient(circle at top right, #1a0b12, #08080a 40%);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* ---- Glassmorphism Utility ---- */
.glass {
  background: var(--bg-surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border);
}

/* ---- Layout Enhancements ---- */
.top-header {
  padding: 25px 20px;
  background: linear-gradient(to bottom, rgba(8,8,10,0.8), transparent);
  backdrop-filter: blur(5px);
  position: sticky;
  top: 0;
  z-index: 110;
}

.top-header h1 {
  font-size: 28px;
  background: linear-gradient(45deg, var(--accent-start), var(--accent-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

/* ---- Navigation Bar (Modern Floating) ---- */
.nav-bar {
  bottom: 15px;
  left: 50%;
  right: auto;
  transform: translateX(-50%);
  width: min(calc(100vw - 30px), 500px);
  height: 70px;
  border-radius: var(--radius-lg);
  background: rgba(22, 22, 26, 0.85);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  margin: 0;
  max-width: none;
}

.nav-item {
  transition: var(--transition);
  border-radius: var(--radius-md);
}

.nav-item.active {
  color: #fff;
  background: var(--accent-light);
}

.nav-item.active svg {
  filter: drop-shadow(0 0 8px var(--accent-start));
}

/* ---- Cards & Discovery ---- */
.discover-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  transition: transform 0.5s ease;
}

.discover-card-info {
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.4) 60%, transparent 100%);
  padding: 30px 20px;
}

.discover-card-info h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 4px;
}

.discover-card-info .meta {
  color: var(--text-secondary);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ---- Buttons (Vibrant Gradients) ---- */
.btn-primary {
  background: linear-gradient(45deg, var(--accent-start), var(--accent-end));
  box-shadow: 0 4px 15px rgba(255, 45, 120, 0.4);
  color: white;
  border: none;
  transition: var(--transition);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 45, 120, 0.6);
  filter: brightness(1.1);
}

.btn-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.btn-like {
  background: white;
  color: var(--accent-start);
}

.btn-like:hover {
  transform: scale(1.15);
  box-shadow: 0 0 25px rgba(255, 45, 120, 0.4);
}

/* ---- Auth Pages ---- */
.auth-card {
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 60px rgba(0,0,0,0.6);
}

.form-control {
  background: var(--bg-input);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 16px;
  transition: var(--transition);
}

.form-control:focus {
  background: rgba(37, 37, 48, 0.9);
  border-color: var(--accent-start);
  box-shadow: 0 0 0 4px var(--accent-light);
}

/* ---- Chat Bubbles ---- */
.message-bubble {
  border-radius: 18px;
  padding: 12px 16px;
  max-width: 85%;
  font-size: 15px;
}

.message-bubble.sent {
  background: linear-gradient(45deg, var(--accent-start), var(--accent-end));
  border-bottom-right-radius: 4px;
}

.message-bubble.received {
  background: var(--bg-card);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--border);
}

/* ---- Animations ---- */
@keyframes pulse-accent {
  0% { box-shadow: 0 0 0 0 rgba(255, 45, 120, 0.4); }
  70% { box-shadow: 0 0 0 15px rgba(255, 45, 120, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 45, 120, 0); }
}

.pulse {
  animation: pulse-accent 2s infinite;
}