/* =============================================
   ChatbotClaude.fr — Premium SaaS Stylesheet
   ============================================= */

:root {
  --bg: #06060f;
  --bg-2: #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(99, 102, 241, 0.4);
  --primary: #6366f1;
  --primary-2: #818cf8;
  --purple: #a855f7;
  --pink: #ec4899;
  --cyan: #06b6d4;
  --green: #10b981;
  --text: #f1f5f9;
  --text-2: #94a3b8;
  --text-3: #64748b;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);
  --glow: 0 0 40px rgba(99, 102, 241, 0.25);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { display: block; max-width: 100%; }
button { cursor: pointer; font-family: var(--font); border: none; outline: none; }

/* ---- Utilities ---- */

.gradient-text {
  background: linear-gradient(135deg, var(--primary-2) 0%, var(--purple) 50%, var(--pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary-2);
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 100px;
  padding: 4px 14px;
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 100px;
  padding: 13px 28px;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--purple));
  color: #fff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.55);
  filter: brightness(1.1);
}

.btn-ghost {
  background: var(--bg-card);
  color: var(--text-2);
  border: 1px solid var(--border);
}

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

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

/* ---- Header ---- */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(6, 6, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.05rem;
  font-weight: 700;
}

.logo-icon {
  font-size: 1.2rem;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-tld { color: var(--primary-2); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
}

.nav-links a:hover { color: var(--text); }

.nav-cta {
  font-size: 0.85rem !important;
  font-weight: 600 !important;
  color: var(--primary-2) !important;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 100px;
  padding: 7px 16px;
}

.nav-cta:hover {
  background: rgba(99, 102, 241, 0.2) !important;
  color: #fff !important;
}

/* ---- Hero ---- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(99, 102, 241, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 70%, rgba(168, 85, 247, 0.1) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 50% 10%, rgba(236, 72, 153, 0.08) 0%, transparent 60%);
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-2);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 7px 16px;
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(0.9); }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.08;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 36px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-social-proof {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-3);
}

.avatars {
  display: flex;
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  margin-left: -8px;
}

.avatar:first-child { margin-left: 0; }

/* ---- Chatbot Demo ---- */

.chatbot-demo {
  background: rgba(13, 13, 26, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(24px);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--glow);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.chatbot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}

.chatbot-header-left { display: flex; align-items: center; gap: 12px; }

.chatbot-avatar {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: #fff;
}

.chatbot-name { font-size: 0.9rem; font-weight: 600; }
.chatbot-status { font-size: 0.72rem; color: var(--text-3); display: flex; align-items: center; gap: 5px; }

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 2s ease-in-out infinite;
}

.chatbot-controls { display: flex; gap: 6px; }

.ctrl {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.ctrl-red { background: #ff5f57; }
.ctrl-yellow { background: #febc2e; }
.ctrl-green { background: #28c840; }

.chatbot-modes {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.01);
}

.chatbot-modes::-webkit-scrollbar { display: none; }

.mode-btn {
  flex-shrink: 0;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-3);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 14px;
  transition: var(--transition);
  white-space: nowrap;
}

.mode-btn:hover {
  color: var(--text-2);
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.12);
}

.mode-btn.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  border-color: transparent;
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.4);
}

.chatbot-messages {
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 220px;
  max-height: 260px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}

.message {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.message-user { flex-direction: row-reverse; }

.message-avatar {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: #fff;
  flex-shrink: 0;
}

.message-bubble {
  max-width: 80%;
  font-size: 0.82rem;
  line-height: 1.6;
  padding: 10px 14px;
  border-radius: 14px;
}

.message-ai .message-bubble {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-top-left-radius: 4px;
  color: var(--text);
}

.message-user .message-bubble {
  background: linear-gradient(135deg, var(--primary), var(--purple));
  color: #fff;
  border-top-right-radius: 4px;
}

.typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 16px !important;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-3);
  animation: typing 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-5px); opacity: 1; }
}

.chatbot-input-area {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: rgba(255,255,255,0.01);
}

.chatbot-input {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.82rem;
  padding: 10px 14px;
  resize: none;
  transition: var(--transition);
}

.chatbot-input::placeholder { color: var(--text-3); }

.chatbot-input:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.05);
}

.chatbot-send {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.4);
}

.chatbot-send:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.6);
}

/* ---- Benefits / Stats ---- */

.benefits {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.015);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.stat-card {
  background: var(--bg);
  padding: 28px 32px;
  text-align: center;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--primary-2), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.stat-label { font-size: 0.85rem; color: var(--text-2); font-weight: 500; }

/* ---- Use Cases ---- */

.use-cases {
  padding: 100px 0;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.use-case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.use-case-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: var(--transition);
}

.use-case-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3), var(--glow);
}

.use-case-card:hover::before { opacity: 1; }

.use-case-card.featured {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.1));
  border-color: rgba(99, 102, 241, 0.35);
}

.use-case-icon { font-size: 2rem; margin-bottom: 14px; }

.use-case-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.use-case-card p { font-size: 0.85rem; color: var(--text-2); line-height: 1.6; }

.use-case-tag {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary-2);
  background: rgba(99, 102, 241, 0.12);
  border-radius: 100px;
  padding: 3px 10px;
}

/* ---- How It Works ---- */

.how-it-works {
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(99,102,241,0.04), transparent);
}

.steps-grid {
  display: flex;
  align-items: center;
  gap: 0;
}

.step-card {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}

.step-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-4px);
}

.step-number {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--primary-2);
  margin-bottom: 16px;
}

.step-icon { font-size: 2.5rem; margin-bottom: 16px; }

.step-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.step-card p { font-size: 0.88rem; color: var(--text-2); line-height: 1.65; }

.step-arrow {
  font-size: 1.5rem;
  color: var(--text-3);
  padding: 0 16px;
  flex-shrink: 0;
}

/* ---- Features ---- */

.features {
  padding: 100px 0;
}

.features-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.features-text .section-title { text-align: left; }
.features-text .section-tag { display: inline-block; }

.features-list { display: flex; flex-direction: column; gap: 24px; margin-top: 32px; }

.feature-item { display: flex; align-items: flex-start; gap: 16px; }

.feature-check {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-item strong { display: block; font-size: 0.95rem; font-weight: 700; margin-bottom: 4px; }
.feature-item p { font-size: 0.85rem; color: var(--text-2); line-height: 1.6; margin: 0; }

.features-visual {
  position: relative;
  height: 400px;
}

.feature-card-stack { position: relative; width: 100%; height: 100%; }

.fcard {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  backdrop-filter: blur(12px);
  min-width: 220px;
  transition: var(--transition);
}

.fcard:hover {
  border-color: rgba(99, 102, 241, 0.4);
  background: var(--bg-card-hover);
  transform: scale(1.03);
}

.fcard-icon { font-size: 1.8rem; }
.fcard-text strong { display: block; font-size: 0.9rem; font-weight: 700; }
.fcard-text span { font-size: 0.78rem; color: var(--text-2); }

.fcard-1 { top: 10%; left: 5%; box-shadow: var(--shadow); animation: fcard1 5s ease-in-out infinite; }
.fcard-2 { top: 32%; right: 2%; box-shadow: var(--shadow); animation: fcard2 5s ease-in-out 0.8s infinite; }
.fcard-3 { top: 56%; left: 15%; box-shadow: var(--shadow); animation: fcard3 5s ease-in-out 1.6s infinite; }
.fcard-4 { top: 76%; right: 8%; box-shadow: var(--shadow); animation: fcard4 5s ease-in-out 2.4s infinite; }

@keyframes fcard1 { 0%,100%{transform:translateY(0) rotate(-1deg)} 50%{transform:translateY(-8px) rotate(-1deg)} }
@keyframes fcard2 { 0%,100%{transform:translateY(0) rotate(1.5deg)} 50%{transform:translateY(-6px) rotate(1.5deg)} }
@keyframes fcard3 { 0%,100%{transform:translateY(0) rotate(-0.5deg)} 50%{transform:translateY(-10px) rotate(-0.5deg)} }
@keyframes fcard4 { 0%,100%{transform:translateY(0) rotate(2deg)} 50%{transform:translateY(-7px) rotate(2deg)} }

/* ---- FAQ ---- */

.faq {
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(99,102,241,0.03), transparent);
}

.faq-grid {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover { border-color: rgba(99, 102, 241, 0.25); }
.faq-item.open { border-color: rgba(99, 102, 241, 0.35); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: transparent;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  gap: 16px;
}

.faq-icon {
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--primary-2);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.open .faq-answer { max-height: 200px; }

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.7;
}

/* ---- Final CTA ---- */

.final-cta { padding: 100px 0; }

.cta-card {
  position: relative;
  text-align: center;
  background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(168,85,247,0.08));
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 32px;
  padding: 80px 48px;
  overflow: hidden;
}

.cta-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(99,102,241,0.2) 0%, transparent 70%);
  pointer-events: none;
}

.cta-card h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  margin-bottom: 16px;
  position: relative;
}

.cta-card p {
  font-size: 1.05rem;
  color: var(--text-2);
  margin-bottom: 36px;
  position: relative;
}

.cta-card .btn { position: relative; }

.cta-note {
  margin-top: 16px !important;
  margin-bottom: 0 !important;
  font-size: 0.82rem !important;
  color: var(--text-3) !important;
}

/* ---- Footer ---- */

.footer {
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
  background: rgba(255,255,255,0.01);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-3);
  margin-top: 12px;
  max-width: 320px;
  line-height: 1.65;
}

.footer-links { display: flex; gap: 48px; }

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.88rem;
  color: var(--text-2);
}

.footer-col a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 0.8rem; color: var(--text-3); }

/* ---- Blog / Articles ---- */

.blog { padding: 100px 0; }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.blog-card {
  display: flex;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  cursor: pointer;
}

.blog-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.blog-card-icon {
  font-size: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(99,102,241,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.blog-card-content { flex: 1; }

.blog-card-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary-2);
  background: rgba(99,102,241,0.12);
  border-radius: 100px;
  padding: 2px 10px;
  margin-bottom: 8px;
}

.blog-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.3;
}

.blog-card p {
  font-size: 0.82rem;
  color: var(--text-3);
  line-height: 1.5;
  margin-bottom: 10px;
}

.blog-card-date {
  font-size: 0.7rem;
  color: var(--text-3);
}

/* ---- Responsive ---- */

@media (max-width: 1100px) {
  .use-cases-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .chatbot-demo { animation: none; }
  .features-inner { grid-template-columns: 1fr; gap: 48px; }
  .features-visual { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .use-cases-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: 1fr; }
  .steps-grid { flex-direction: column; gap: 16px; }
  .step-arrow { transform: rotate(90deg); }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .nav-links { display: none; }
}

@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .hero { padding: 100px 0 60px; }
  .hero-ctas { flex-direction: column; align-items: flex-start; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .use-cases-grid { grid-template-columns: 1fr 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .cta-card { padding: 48px 24px; border-radius: 20px; }
  .footer-links { flex-direction: column; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 440px) {
  .use-cases-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.2rem; }
}