/* landing.css - Premium Stylesheet with Strong Brand Type */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@600;700;800;900&display=swap');

:root {
  --bg-dark: #030712;
  --bg-darker: #02040a;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.35);
  --secondary: #7c3aed;
  --secondary-glow: rgba(124, 58, 237, 0.25);
  --accent: #06b6d4;
  --accent-glow: rgba(6, 182, 212, 0.25);
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --card-bg: rgba(9, 15, 32, 0.6);
  --border-color: rgba(255, 255, 255, 0.05);
  --border-hover: rgba(37, 99, 235, 0.4);
  --success: #10b981;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Headings with Strong Geometric Brand Type */
h1, h2, h3, h4, .brand-name, .hero-title, .section-title, .feature-title, .step-num, .step-title, .resource-title, .footer-brand {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  letter-spacing: -0.04em;
}

/* Background Gradients & Glow effects */
.bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(160px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.12;
}

.glow-top-left {
  background: var(--primary);
  top: -200px;
  left: -200px;
}

.glow-bottom-right {
  background: var(--secondary);
  bottom: -200px;
  right: -200px;
}

.glow-center {
  background: var(--accent);
  top: 45%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  opacity: 0.08;
}

/* Wrapper & Layout */
.app-container {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  z-index: 1;
}

/* Navbar */
header.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.app-logo {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 8px 16px var(--primary-glow);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.brand-name {
  font-size: 24px;
  font-weight: 900;
  background: linear-gradient(to right, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -1px;
}

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: #ffffff;
}

.btn-nav-download {
  background: rgba(255, 255, 255, 0.03);
  color: #ffffff;
  padding: 10px 24px;
  border-radius: 12px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.btn-nav-download:hover {
  background: #ffffff;
  color: #030712;
  transform: translateY(-1px);
}

/* Hero Section */
.hero-section {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  padding: 100px 0;
  border-bottom: 1px solid var(--border-color);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 8px;
  background: linear-gradient(to right, rgba(37, 99, 235, 0.15), rgba(124, 58, 237, 0.15));
  border: 1px solid rgba(37, 99, 235, 0.25);
  color: #93c5fd;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.badge-tag::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background-color: var(--accent);
  border-radius: 50%;
  animation: pulse-ring 1.5s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.5; }
  50% { transform: scale(1.25); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.5; }
}

.hero-title {
  font-size: 60px;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  background: linear-gradient(to bottom right, #ffffff 40%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title span {
  background: linear-gradient(to right, #3b82f6, #8b5cf6, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 19px;
  color: var(--text-muted);
  line-height: 1.6;
  font-weight: 400;
}

.cta-group {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #ffffff;
  padding: 16px 36px;
  border-radius: 14px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 25px var(--primary-glow);
  transition: all 0.2s ease;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px var(--primary-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: #ffffff;
  padding: 16px 36px;
  border-radius: 14px;
  text-decoration: none;
  font-size: 16px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

/* Premium Brand/Connection Radar Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  height: 480px;
}

.logo-showcase-container {
  position: relative;
  width: 340px;
  height: 340px;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Glowing background rings */
.radar-glow-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(37, 99, 235, 0.15);
  background: radial-gradient(circle, rgba(37, 99, 235, 0.04) 0%, transparent 70%);
  animation: pulse-ring-expand 4s infinite linear;
}

.ring-1 {
  width: 100%;
  height: 100%;
  animation-delay: 0s;
}

.ring-2 {
  width: 100%;
  height: 100%;
  animation-delay: 1.3s;
}

.ring-3 {
  width: 100%;
  height: 100%;
  animation-delay: 2.6s;
}

@keyframes pulse-ring-expand {
  0% {
    transform: scale(0.3);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  100% {
    transform: scale(1.3);
    opacity: 0;
  }
}

/* App Logo Hub in center */
.app-logo-hub {
  position: relative;
  width: 150px;
  height: 150px;
  border-radius: 38px;
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-darker));
  border: 2px solid rgba(255, 255, 255, 0.08);
  padding: 10px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.8),
              0 0 0 1px rgba(255, 255, 255, 0.04),
              0 0 40px var(--primary-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  animation: float-logo 6s ease-in-out infinite;
}

.showcase-logo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 28px;
}

@keyframes float-logo {
  0% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-10px) rotate(2deg);
  }
  100% {
    transform: translateY(0) rotate(0deg);
  }
}

/* Floating connection nodes */
.p2p-node {
  position: absolute;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(9, 15, 32, 0.85);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  z-index: 3;
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  backdrop-filter: blur(8px);
}

.node-1 {
  top: 5%;
  left: 10%;
  animation: float-node-1 7s ease-in-out infinite alternate;
}

.node-2 {
  bottom: 10%;
  right: 5%;
  animation: float-node-2 8s ease-in-out infinite alternate;
}

.node-3 {
  top: 60%;
  left: 80%;
  animation: float-node-3 6s ease-in-out infinite alternate;
}

@keyframes float-node-1 {
  0% { transform: translate(0, 0) scale(1); border-color: var(--border-color); }
  100% { transform: translate(12px, -18px) scale(1.05); border-color: var(--primary); box-shadow: 0 8px 25px var(--primary-glow); }
}

@keyframes float-node-2 {
  0% { transform: translate(0, 0) scale(1); border-color: var(--border-color); }
  100% { transform: translate(-18px, 12px) scale(1.05); border-color: var(--secondary); box-shadow: 0 8px 25px var(--secondary-glow); }
}

@keyframes float-node-3 {
  0% { transform: translate(0, 0) scale(1); border-color: var(--border-color); }
  100% { transform: translate(-12px, -15px) scale(1.05); border-color: var(--accent); box-shadow: 0 8px 25px var(--accent-glow); }
}

/* Key Features Grid */
.features-section {
  padding: 100px 0;
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.section-subtitle {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--primary);
  letter-spacing: 2px;
}

.section-title {
  font-size: 44px;
  font-weight: 900;
  letter-spacing: -1.5px;
  line-height: 1.15;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 40px;
  border-radius: 24px;
  backdrop-filter: blur(12px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  gap: 22px;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 20px 45px rgba(37, 99, 235, 0.05),
              inset 0 1px 1px rgba(255, 255, 255, 0.1);
}

.feature-icon-box {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.15);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.1);
}

.feature-card:nth-child(2) .feature-icon-box {
  background: rgba(124, 58, 237, 0.1);
  border-color: rgba(124, 58, 237, 0.15);
  color: var(--secondary);
  box-shadow: 0 8px 16px rgba(124, 58, 237, 0.1);
}

.feature-card:nth-child(3) .feature-icon-box {
  background: rgba(6, 182, 212, 0.1);
  border-color: rgba(6, 182, 212, 0.15);
  color: var(--accent);
  box-shadow: 0 8px 16px rgba(6, 182, 212, 0.1);
}

.feature-card:nth-child(4) .feature-icon-box {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.15);
  color: var(--success);
  box-shadow: 0 8px 16px rgba(16, 185, 129, 0.1);
}

.feature-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.feature-desc {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.6;
}

/* How It Works (Steps) */
.steps-section {
  padding: 100px 0;
  border-bottom: 1px solid var(--border-color);
}

/* Conversation Mode Toggle */
.mode-toggle-container {
  display: flex;
  justify-content: center;
  margin-top: 30px;
  margin-bottom: 40px;
}

.mode-toggle-pill {
  display: flex;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 6px;
  border-radius: 999px;
  gap: 4px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.mode-btn-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 12px 36px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.mode-btn-tab:hover {
  color: #ffffff;
}

.mode-btn-tab.active {
  background: #a4c5f9;
  color: #090e1a;
  box-shadow: 0 4px 12px rgba(164, 197, 249, 0.3);
}

.steps-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.step-item {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 36px;
  border-radius: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}

.step-item:hover {
  transform: translateY(-2px);
  border-color: rgba(164, 197, 249, 0.3);
}

.step-num {
  font-size: 46px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.step-title {
  font-size: 20px;
  font-weight: 800;
}

.step-desc {
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.6;
}

/* Interactive Demo Widget */
.demo-section {
  padding: 100px 0;
  border-bottom: 1px solid var(--border-color);
}

.demo-widget {
  background: linear-gradient(135deg, rgba(8, 13, 28, 0.9), rgba(15, 23, 42, 0.9));
  border: 1px solid var(--border-color);
  border-radius: 28px;
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: center;
  box-shadow: 0 35px 70px rgba(0, 0, 0, 0.5),
              inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

.demo-selector {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.demo-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 18px 24px;
  border-radius: 16px;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.03);
}

.demo-btn:hover, .demo-btn.active {
  background: rgba(37, 99, 235, 0.08);
  border-color: var(--primary);
  transform: translateX(6px);
}

.demo-btn .btn-arrow {
  color: var(--primary);
  opacity: 0;
  transition: all 0.2s ease;
}

.demo-btn.active .btn-arrow, .demo-btn:hover .btn-arrow {
  opacity: 1;
  transform: translateX(4px);
}

.demo-display {
  background: #02040a;
  border: 1px solid var(--border-color);
  padding: 36px;
  border-radius: 20px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 15px 30px rgba(0,0,0,0.4);
}

.demo-display::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.demo-row {
  opacity: 0;
  transform: translateY(8px);
  animation: demo-fade-in 0.4s ease forwards;
}

.demo-row.out {
  animation: demo-fade-in 0.4s ease forwards;
  animation-delay: 0.6s;
}

.demo-row-lang {
  font-size: 11px;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.demo-row-text {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.demo-row-text.translation {
  color: var(--accent);
}

@keyframes demo-fade-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Legal & Support Resources Hub */
.resources-section {
  padding: 100px 0;
  border-bottom: 1px solid var(--border-color);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.resource-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 32px;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

.resource-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 58, 237, 0.4);
  box-shadow: 0 15px 35px rgba(124, 58, 237, 0.08),
              inset 0 1px 1px rgba(255, 255, 255, 0.1);
}

.resource-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.15);
  color: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.resource-card:nth-child(2) .resource-icon {
  background: rgba(37, 99, 235, 0.1);
  border-color: rgba(37, 99, 235, 0.15);
  color: var(--primary);
}

.resource-card:nth-child(3) .resource-icon {
  background: rgba(6, 182, 212, 0.1);
  border-color: rgba(6, 182, 212, 0.15);
  color: var(--accent);
}

.resource-title {
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: space-between;
  letter-spacing: -0.5px;
}

.resource-arrow {
  font-size: 18px;
  transition: transform 0.2s ease;
  color: var(--text-muted);
}

.resource-card:hover .resource-arrow {
  transform: translateX(4px);
  color: white;
}

.resource-desc {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

.extra-links {
  display: flex;
  justify-content: center;
  margin-top: 40px;
  font-size: 14px;
}

.extra-link {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

.extra-link:hover {
  color: #ef4444;
}

/* Footer styling */
footer.main-footer {
  padding: 60px 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-brand {
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.5px;
}

.footer-copyright {
  color: var(--text-muted);
  font-size: 13.5px;
}

.footer-support {
  font-size: 14px;
  color: var(--text-muted);
}

.footer-support strong {
  color: var(--primary);
}

/* Responsive design */
@media (max-width: 968px) {
  .hero-section {
    grid-template-columns: 1fr;
    gap: 50px;
    padding: 60px 0;
    text-align: center;
  }

  .badge-tag {
    align-self: center;
  }

  .hero-title {
    font-size: 44px;
  }

  .cta-group {
    justify-content: center;
  }

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

  .steps-timeline {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .step-item {
    grid-column: auto !important;
  }

  .demo-widget {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 28px;
  }

  .resources-grid {
    grid-template-columns: 1fr;
  }
  
  header.navbar {
    flex-direction: column;
    gap: 20px;
  }
  
  .hero-visual {
    height: 380px;
  }
}