/* ============================================================
   ReLoop — Premium AI Startup Styles
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Dark Premium Color System */
  --bg-base: #030712;
  --bg-surface: rgba(17, 24, 39, 0.6);
  --bg-glass: rgba(17, 24, 39, 0.4);
  --bg-glass-strong: rgba(17, 24, 39, 0.8);
  --bg-card: rgba(31, 41, 55, 0.5);
  
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --accent-emerald: #10b981;
  --accent-emerald-dark: #059669;
  --accent-cyan: #06b6d4;
  --accent-cyan-dark: #0891b2;
  --accent-indigo: #6366f1;
  
  --border-light: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(16, 185, 129, 0.3);
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(16, 185, 129, 0.15);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --nav-height: 80px;
  --transition-fast: 200ms ease;
  --transition-normal: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-emerald);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: transparent;
}

img {
  max-width: 100%;
  display: block;
}

input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
  background: rgba(0, 0, 0, 0.2);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

/* ─── Layout & Utility ─── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

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

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
}

.badge-primary {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-emerald);
  border-color: rgba(16, 185, 129, 0.2);
}

.badge-accent {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.2);
}

.badge-role {
  background: rgba(99, 102, 241, 0.1);
  color: #818cf8;
  border-color: rgba(99, 102, 241, 0.2);
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-emerald), var(--accent-cyan-dark));
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
  filter: brightness(1.1);
}

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(12px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-emerald);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* ─── Glass Cards ─── */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-lg), 0 0 30px rgba(6, 182, 212, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
}

/* ─── Ambient Background ─── */
.ambient-background {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
  background: linear-gradient(135deg, #030712 0%, #08121f 50%, #030712 100%);
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  animation: float 20s infinite alternate ease-in-out;
}

.glow-emerald {
  width: 600px;
  height: 600px;
  background: var(--accent-emerald);
  top: -10%;
  left: -10%;
}

.glow-cyan {
  width: 500px;
  height: 500px;
  background: var(--accent-cyan);
  bottom: 20%;
  right: -5%;
  animation-delay: -5s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, 50px) scale(1.1); }
  100% { transform: translate(-20px, 20px) scale(0.9); }
}

.grid-squares {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--border-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-light) 1px, transparent 1px);
  background-size: 100px 100px;
  opacity: 0.03;
  mask-image: radial-gradient(circle at center, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at center, black 20%, transparent 80%);
}

.floating-squares {
  position: absolute;
  inset: 0;
}

.circuit-parallax-wrapper {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* ─── Top Navbar ─── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background: var(--bg-glass-strong);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.nav-brand:hover {
  text-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

.nav-brand-icon {
  color: var(--accent-emerald);
  transition: transform var(--transition-normal);
}

.nav-brand:hover .nav-brand-icon {
  transform: rotate(-45deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-emerald);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal);
}

.nav-link.active::after, .nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

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

.nav-user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.85rem;
  font-weight: 500;
}

.nav-user:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

/* ─── Main Content Area ─── */
.main-content {
  padding-top: var(--nav-height);
  min-height: 100vh;
}

.page-section { display: none; opacity: 0; animation: fadeIn 0.4s ease forwards; }
.page-section.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.page-header { padding: 4rem 0 2rem; text-align: center; }
.page-header h1 { font-size: 2.5rem; margin-bottom: 1rem; }
.page-header p { color: var(--text-secondary); max-width: 600px; margin: 0 auto; font-size: 1.1rem; }
.page-body { padding: 0 0 4rem; }

/* ─── Hero Section ─── */
.hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  padding: 4rem 0;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-content p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 90%;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

/* Hero Visual / AI Card */
.hero-visual {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-card {
  position: absolute;
  z-index: 10;
  background: rgba(17, 24, 39, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-md);
  padding: 2rem;
  width: 320px;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(16, 185, 129, 0.1);
  animation: floatCard 6s infinite alternate ease-in-out;
}

@keyframes floatCard {
  0% { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(-15px) rotate(1deg); }
}

.ai-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1rem;
}

.ai-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--accent-cyan);
  font-weight: 600;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.ai-card-body h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.ai-card-body p { color: var(--text-secondary); margin-bottom: 1.5rem; font-size: 0.9rem; }
.ai-match-row { display: flex; justify-content: space-between; margin-bottom: 0.5rem; font-size: 0.9rem; }
.ai-match-value { color: var(--accent-emerald); font-weight: 600; }

.destination-cards {
  position: absolute;
  bottom: 20px;
  display: flex;
  gap: 1rem;
  width: 100%;
  justify-content: center;
}

.dest-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  text-align: center;
  backdrop-filter: blur(10px);
  animation: slideUpFade 0.8s backwards ease-out;
}
.dest-card:nth-child(1) { animation-delay: 0.2s; }
.dest-card:nth-child(2) { border-color: rgba(16, 185, 129, 0.5); box-shadow: 0 0 15px rgba(16, 185, 129, 0.1); animation-delay: 0.4s; }
.dest-card:nth-child(3) { animation-delay: 0.6s; }

@keyframes slideUpFade {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Connecting lines for hero visual (pseudo elements) */
.ai-connection {
  position: absolute;
  width: 2px;
  height: 60px;
  background: linear-gradient(to bottom, rgba(16, 185, 129, 0.5), transparent);
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

/* ─── Sections ─── */
.section { padding: 6rem 0; position: relative; }
.section-header { text-align: center; margin-bottom: 4rem; }
.section-title { font-size: 2.5rem; margin-bottom: 1rem; }
.section-subtitle { font-size: 1.1rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto; }

/* The Problem */
.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.problem-card { text-align: center; padding: 3rem 2rem; }
.problem-icon { font-size: 3rem; margin-bottom: 1.5rem; display: inline-block; background: rgba(255, 255, 255, 0.05); width: 80px; height: 80px; line-height: 80px; border-radius: 50%; }

/* Solution Diagram */
.solution-diagram { display: flex; flex-direction: column; align-items: center; gap: 2rem; margin-top: 3rem; }
.diag-node { background: var(--bg-card); border: 1px solid var(--border-light); padding: 1rem 2rem; border-radius: var(--radius-full); font-weight: 600; letter-spacing: 1px; }
.diag-node.ai-node { background: rgba(16, 185, 129, 0.1); border-color: var(--accent-emerald); color: var(--accent-emerald); box-shadow: 0 0 20px rgba(16, 185, 129, 0.1); }
.diag-arrows { display: flex; gap: 4rem; color: var(--text-muted); }
.diag-row { display: flex; gap: 2rem; }

/* How It Works */
.steps-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.step-card { position: relative; overflow: hidden; }
.step-num { position: absolute; top: -10px; right: -10px; font-size: 8rem; font-weight: 800; color: rgba(255, 255, 255, 0.02); line-height: 1; }
.step-card h3 { font-size: 1.5rem; margin: 1rem 0 0.5rem; }

/* Impact Stats */
.impact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.impact-card { text-align: center; }
.impact-num { font-size: 3.5rem; font-weight: 800; background: linear-gradient(135deg, #fff, var(--text-secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 0.5rem; }
.impact-label { color: var(--accent-cyan); font-weight: 600; text-transform: uppercase; font-size: 0.85rem; letter-spacing: 1px; }

/* ─── Role Selection Modal ─── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.8); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center; z-index: 2000;
  opacity: 0; visibility: hidden; transition: all var(--transition-normal); padding: 1rem;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
  background: var(--bg-surface); backdrop-filter: blur(20px); border: 1px solid var(--border-light);
  border-radius: var(--radius-lg); max-width: 520px; width: 100%; max-height: 90vh; overflow-y: auto;
  padding: 2.5rem; transform: translateY(20px) scale(0.95); transition: all var(--transition-normal);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; }
.modal-header h2 { font-size: 1.5rem; }
.modal-close { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.05); color: var(--text-primary); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; transition: background var(--transition-fast); }
.modal-close:hover { background: rgba(255,255,255,0.1); }

.role-grid { display: grid; gap: 1rem; }
.role-card {
  padding: 1.25rem; background: rgba(255,255,255,0.03); border: 1px solid var(--border-light);
  border-radius: var(--radius-md); cursor: pointer; transition: all var(--transition-normal);
  display: flex; align-items: center; gap: 1.25rem;
}
.role-card:hover {
  background: rgba(255,255,255,0.06); border-color: var(--accent-cyan);
  transform: translateY(-4px); box-shadow: 0 10px 25px rgba(6, 182, 212, 0.1);
}
.role-icon {
  width: 50px; height: 50px; background: rgba(255,255,255,0.05); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; font-size: 1.5rem; flex-shrink: 0;
}
.role-info h4 { font-size: 1.1rem; margin-bottom: 0.25rem; }
.role-info p { font-size: 0.85rem; color: var(--text-secondary); margin: 0; }

/* ─── Forms ─── */
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; font-weight: 500; font-size: 0.9rem; margin-bottom: 0.5rem; color: var(--text-secondary); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 14px 16px; border-radius: var(--radius-sm); transition: all var(--transition-fast);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--accent-cyan); box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
}

/* ─── Analyze Page ─── */
.analyze-container { max-width: 700px; margin: 0 auto; }
.upload-zone {
  border: 2px dashed rgba(255,255,255,0.2); border-radius: var(--radius-md); padding: 4rem 2rem;
  text-align: center; cursor: pointer; transition: all var(--transition-normal); background: rgba(0,0,0,0.2);
}
.upload-zone:hover, .upload-zone.dragover { border-color: var(--accent-emerald); background: rgba(16, 185, 129, 0.05); }
.upload-zone-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.8; }
.image-preview { margin-top: 1.5rem; max-height: 250px; border-radius: var(--radius-sm); object-fit: cover; margin-left: auto; margin-right: auto; border: 1px solid var(--border-light); }
.demo-preset-btn { background: rgba(255,255,255,0.05); color: var(--text-primary); border: 1px solid var(--border-light); padding: 10px 18px; border-radius: var(--radius-full); font-size: 0.9rem; transition: all var(--transition-fast); }
.demo-preset-btn:hover { border-color: var(--accent-cyan); background: rgba(6, 182, 212, 0.1); }

/* ─── Result Cards ─── */
.result-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 2rem; border-bottom: 1px solid var(--border-light); padding-bottom: 1.5rem; }
.result-item-name { font-size: 1.8rem; font-weight: 700; margin-bottom: 0.5rem; }
.result-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-bottom: 2.5rem; }
.result-meta { padding: 1rem; background: rgba(0,0,0,0.3); border-radius: var(--radius-sm); border: 1px solid var(--border-light); }
.result-meta-label { font-size: 0.75rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; }
.result-meta-value { font-weight: 600; margin-top: 0.4rem; font-size: 1.1rem; }
.result-reason { background: rgba(16, 185, 129, 0.05); border-left: 3px solid var(--accent-emerald); padding: 1.25rem 1.5rem; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-size: 1rem; margin-bottom: 2rem; }
.match-card { display: flex; align-items: center; gap: 1rem; padding: 1.25rem; border: 1px solid var(--border-light); border-radius: var(--radius-sm); margin-bottom: 1rem; background: rgba(255,255,255,0.02); transition: all var(--transition-fast); }
.match-card:hover { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.2); }
.match-avatar { font-size: 2rem; width: 60px; height: 60px; background: rgba(0,0,0,0.3); border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.hazard-warning { background: rgba(239, 68, 68, 0.1); border: 1px solid rgba(239, 68, 68, 0.3); color: #fca5a5; padding: 1rem 1.5rem; border-radius: var(--radius-sm); margin-bottom: 2rem; display: flex; align-items: center; gap: 1rem; }

/* ─── Marketplace & Listings ─── */
.search-box { position: relative; margin-bottom: 2rem; max-width: 600px; margin: 0 auto 2rem; }
.search-box input { width: 100%; padding: 16px 20px 16px 48px; border-radius: var(--radius-full); font-size: 1.05rem; background: rgba(255,255,255,0.05); border: 1px solid var(--border-light); backdrop-filter: blur(10px); }
.search-box::before { content: '🔍'; position: absolute; left: 20px; top: 50%; transform: translateY(-50%); opacity: 0.6; }
.filter-tabs { display: flex; gap: 0.75rem; flex-wrap: wrap; justify-content: center; margin-bottom: 3rem; }
.filter-tab { padding: 8px 20px; border-radius: var(--radius-full); font-size: 0.9rem; background: rgba(255,255,255,0.05); border: 1px solid var(--border-light); color: var(--text-secondary); transition: all var(--transition-fast); }
.filter-tab:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }
.filter-tab.active { background: var(--accent-emerald); color: #fff; border-color: var(--accent-emerald); }

.listings-grid, .entity-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 2rem; }
.listing-img { height: 200px; background: rgba(0,0,0,0.3); display: flex; align-items: center; justify-content: center; font-size: 5rem; position: relative; border-radius: var(--radius-sm) var(--radius-sm) 0 0; }
.listing-tag { position: absolute; top: 1rem; left: 1rem; }
.listing-body { padding: 1.5rem; }
.listing-title { font-size: 1.2rem; margin-bottom: 0.75rem; }
.listing-meta { font-size: 0.85rem; color: var(--text-secondary); display: flex; gap: 1rem; margin-bottom: 1.5rem; }
.listing-footer { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--border-light); padding-top: 1rem; }
.listing-price { font-size: 1.25rem; font-weight: 700; color: var(--text-primary); }
.listing-price.free { color: var(--accent-cyan); }

/* Entity Cards (Makers, Materials, Recyclers) */
.entity-card { padding: 1.5rem; display: flex; flex-direction: column; }
.entity-header { display: flex; align-items: center; gap: 1.25rem; margin-bottom: 1.25rem; }
.entity-icon { width: 64px; height: 64px; border-radius: var(--radius-sm); background: rgba(255,255,255,0.05); display: flex; align-items: center; justify-content: center; font-size: 2rem; flex-shrink: 0; border: 1px solid var(--border-light); }
.entity-name { font-size: 1.2rem; font-weight: 700; }
.entity-sub { color: var(--accent-cyan); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; margin-top: 0.25rem; }
.entity-details { flex: 1; color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 1.5rem; line-height: 1.6; }
.entity-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.entity-stat { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0.5rem; display: flex; align-items: center; gap: 8px; }

/* ─── Footer ─── */
.landing-footer { background: rgba(0,0,0,0.5); border-top: 1px solid var(--border-light); padding: 4rem 0; margin-top: 4rem; backdrop-filter: blur(10px); }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.footer-brand h3 { font-size: 1.5rem; margin-bottom: 0.5rem; display: flex; align-items: center; gap: 8px; }
.footer-brand p { color: var(--text-secondary); }
.footer-links { display: flex; gap: 2rem; justify-content: flex-end; align-items: center; }
.footer-links a { color: var(--text-secondary); }
.footer-links a:hover { color: var(--text-primary); }
.footer-bottom { text-align: center; margin-top: 4rem; padding-top: 2rem; border-top: 1px solid var(--border-light); color: var(--text-muted); font-size: 0.85rem; }

/* ─── Loading & Toast ─── */
.loading-overlay { display: flex; flex-direction: column; align-items: center; padding: 6rem 0; }
.spinner { width: 60px; height: 60px; border: 3px solid rgba(255,255,255,0.1); border-top-color: var(--accent-emerald); border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 2rem; }
@keyframes spin { to { transform: rotate(360deg); } }

.toast-container { position: fixed; bottom: 2rem; right: 2rem; z-index: 3000; display: flex; flex-direction: column; gap: 1rem; }
.toast { background: var(--bg-surface); backdrop-filter: blur(12px); border: 1px solid var(--border-light); padding: 1rem 1.5rem; border-radius: var(--radius-sm); font-weight: 500; display: flex; align-items: center; gap: 12px; box-shadow: var(--shadow-lg); animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
.toast.success { border-left: 4px solid var(--accent-emerald); }
.toast.error { border-left: 4px solid #ef4444; }
.toast.info { border-left: 4px solid var(--accent-cyan); }
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Empty States */
.empty-state { text-align: center; padding: 6rem 2rem; background: rgba(255,255,255,0.02); border-radius: var(--radius-md); border: 1px dashed var(--border-light); }
.empty-state-icon { font-size: 4rem; margin-bottom: 1.5rem; opacity: 0.5; }

/* Scroll Animation Classes */
.animate-on-scroll { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.animate-on-scroll.is-visible { opacity: 1; transform: translateY(0); }

/* ─── Mobile Menu Toggle ─── */
.mobile-menu-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  cursor: pointer;
}

.mobile-menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ─── Responsive ─── */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-content h1 { font-size: 3rem; }
  .hero-content p { margin: 0 auto 2.5rem; }
  .hero-actions { justify-content: center; }
  .problem-grid, .steps-grid, .impact-grid { grid-template-columns: repeat(2, 1fr); }
  .result-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .mobile-menu-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .problem-grid, .steps-grid, .impact-grid { grid-template-columns: 1fr; }
  .result-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; gap: 2rem; }
  .footer-links { justify-content: center; flex-wrap: wrap; }
  .ai-card { width: 100%; max-width: 320px; }
  .section { padding: 4rem 0; }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ─── Profile & Avatar ─── */
.avatar-circle { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, var(--accent-emerald), var(--accent-cyan)); display: flex; align-items: center; justify-content: center; font-weight: 700; color: #fff; font-size: 0.9rem; }
.avatar-circle-large { width: 80px; height: 80px; border-radius: 50%; background: linear-gradient(135deg, var(--accent-emerald), var(--accent-cyan)); display: flex; align-items: center; justify-content: center; font-weight: 700; color: #fff; font-size: 2rem; box-shadow: var(--shadow-glow); }
.user-avatar-trigger { display: flex; align-items: center; gap: 8px; cursor: pointer; padding: 4px 8px; border-radius: var(--radius-full); transition: background var(--transition-fast); }
.user-avatar-trigger:hover { background: rgba(255, 255, 255, 0.08); }

/* ─── Profile Dropdown ─── */
.profile-dropdown { position: absolute; top: 50px; right: 0; width: 220px; background: var(--bg-surface); backdrop-filter: blur(20px); border: 1px solid var(--border-light); border-radius: var(--radius-md); box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(10px); transition: all var(--transition-fast); z-index: 1000; overflow: hidden; }
.profile-dropdown.open { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-header { padding: 1.25rem 1rem; border-bottom: 1px solid var(--border-light); background: rgba(255,255,255,0.02); }
.dropdown-name { font-weight: 700; font-size: 1rem; margin-bottom: 0.25rem; }
.dropdown-role { font-size: 0.75rem; color: var(--accent-cyan); text-transform: uppercase; font-weight: 600; letter-spacing: 0.5px; }
.dropdown-body { padding: 0.5rem 0; }
.dropdown-body a { display: block; padding: 0.75rem 1.25rem; color: var(--text-primary); font-size: 0.9rem; font-weight: 500; transition: background var(--transition-fast); }
.dropdown-body a:hover { background: rgba(255,255,255,0.05); color: var(--accent-emerald); }
.dropdown-divider { height: 1px; background: var(--border-light); margin: 0.5rem 0; }

/* ─── Dashboard Cards & Actions ─── */
.dashboard-summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; margin-bottom: 3rem; }
.dashboard-actions-grid { display: flex; gap: 1rem; flex-wrap: wrap; }
.summary-card { background: rgba(255,255,255,0.03); border: 1px solid var(--border-light); border-radius: var(--radius-sm); padding: 1.5rem; text-align: center; backdrop-filter: blur(10px); }
.summary-card h4 { font-size: 0.85rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 0.5rem; }
.summary-card .val { font-size: 2.5rem; font-weight: 800; color: var(--accent-emerald); line-height: 1; }

/* ─── Activity Timeline ─── */
.activity-timeline { position: relative; padding-left: 2rem; }
.activity-timeline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--border-light); }
.activity-item { position: relative; margin-bottom: 2rem; padding-left: 1.5rem; }
.activity-icon { position: absolute; left: -2.75rem; top: 0; width: 36px; height: 36px; border-radius: 50%; background: var(--bg-card); border: 2px solid var(--accent-cyan); display: flex; align-items: center; justify-content: center; font-size: 1rem; z-index: 1; }
.activity-content { background: rgba(255,255,255,0.02); border: 1px solid var(--border-light); padding: 1.25rem; border-radius: var(--radius-sm); }
.activity-time { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.5rem; font-weight: 600; text-transform: uppercase; }
.activity-desc { font-size: 1rem; }
.activity-detail { font-weight: 700; color: var(--text-primary); }

/* ─── Marketplace Listing Cards ─── */
.listing-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.listing-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg), 0 0 25px rgba(16, 185, 129, 0.1);
}

/* ─── My Listings Page ─── */
.my-listing-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  transition: all var(--transition-fast);
}
.my-listing-item:hover {
  border-color: rgba(255, 255, 255, 0.2);
}
.my-listing-info { flex: 1; }
.my-listing-info h4 { font-size: 1.1rem; margin-bottom: 0.25rem; color: var(--text-primary); }
.my-listing-info small { color: var(--text-secondary); font-size: 0.85rem; }

/* ─── AI Analysis Results Styling ─── */
.result-section { margin-bottom: 2rem; }
.result-section h3 { font-size: 1.2rem; margin-bottom: 1rem; display: flex; align-items: center; gap: 8px; color: var(--text-primary); }
.result-actions-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; margin-top: 1rem; }
.result-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}
.result-action-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}
.result-action-btn.recommended {
  background: rgba(16, 185, 129, 0.12);
  border-color: var(--accent-emerald);
  color: #fff;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.15);
}
.result-action-btn.recommended:hover {
  background: rgba(16, 185, 129, 0.25);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.upcycle-ideas { list-style: none; padding: 0; display: grid; gap: 0.75rem; }
.upcycle-ideas li {
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 12px;
}
.upcycle-ideas li::before { content: '💡'; font-size: 1.1rem; }

.ai-badge {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.match-info { flex: 1; }
.match-name { font-weight: 700; font-size: 1rem; display: flex; align-items: center; gap: 8px; margin-bottom: 0.25rem; }
.match-reason { font-size: 0.85rem; color: var(--text-secondary); }
.emoji { display: inline-block; font-style: normal; margin-right: 0.5rem; }

/* ─── Role-Aware AI Assistant Cards ─── */
.ai-role-card {
  position: relative;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(6, 182, 212, 0.05));
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.ai-role-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent-emerald), var(--accent-cyan), var(--accent-indigo));
}

.ai-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.ai-card-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ai-badge-gemini {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(6, 182, 212, 0.3);
  padding: 3px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.ai-card-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.ai-demo-presets {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.ai-demo-presets label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.demo-chip-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  padding: 4px 12px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.demo-chip-btn:hover {
  background: rgba(16, 185, 129, 0.15);
  border-color: var(--accent-emerald);
  color: var(--accent-emerald);
}

.ai-input-group {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.ai-input-group input {
  flex: 1;
  min-width: 240px;
  background: rgba(17, 24, 39, 0.6);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
}

.ai-input-group input:focus {
  outline: none;
  border-color: var(--accent-emerald);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
}

.ai-loading-box {
  display: none;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-top: 1rem;
}

.ai-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(16, 185, 129, 0.2);
  border-top-color: var(--accent-emerald);
  border-radius: 50%;
  animation: aiSpin 0.8s linear infinite;
}

@keyframes aiSpin {
  to { transform: rotate(360deg); }
}

.ai-result-box {
  display: none;
  background: rgba(17, 24, 39, 0.85);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-top: 1rem;
  animation: fadeIn 0.3s ease-out;
}

.ai-result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.ai-result-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-emerald);
}

.ai-tag-chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-light);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--text-secondary);
}