/* ============================================
   Avilo AI — Design System
   ============================================ */

:root {
  /* Color */
  --navy: #0F172A;
  --navy-soft: #1E293B;
  --bg: #FAF9F6;
  --bg-dim: #F1EFE9;
  --indigo: #4F46E5;
  --indigo-dark: #4338CA;
  --slate: #64748B;
  --slate-light: #94A3B8;
  --amber: #F59E0B;
  --white: #FFFFFF;
  --border: rgba(15, 23, 42, 0.08);
  --border-dark: rgba(255, 255, 255, 0.1);

  /* Type */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 9rem;
}

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

html { scroll-behavior: smooth; }

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

:focus-visible {
  outline: 2px solid var(--indigo);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ============================================
   Header / Nav
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 249, 246, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem var(--space-lg);
  max-width: 1180px;
  margin: 0 auto;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--navy);
  position: relative;
  flex-shrink: 0;
}

.logo-mark::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.6);
  animation: pulse-dot 2.4s ease-out infinite;
}

@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.5); }
  70% { box-shadow: 0 0 0 6px rgba(245, 158, 11, 0); }
  100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a {
  color: var(--slate);
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--navy);
}

.nav-cta {
  background: var(--navy);
  color: var(--white) !important;
  padding: 0.6rem 1.3rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: background 0.2s ease;
}

.nav-cta:hover {
  background: var(--indigo);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
}

/* ============================================
   Status pill (signature element, reused)
   ============================================ */

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--navy);
  color: var(--white);
  padding: 0.45rem 0.9rem 0.45rem 0.7rem;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.6);
  animation: pulse-dot 2.4s ease-out infinite;
}

/* ============================================
   Hero
   ============================================ */

.hero {
  padding: var(--space-2xl) 0 var(--space-2xl);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-2xl);
  align-items: center;
}

.hero-eyebrow {
  margin-bottom: var(--space-md);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 5vw, 4.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-md);
}

.hero-lede {
  font-size: 1.2rem;
  color: var(--slate);
  max-width: 480px;
  margin-bottom: var(--space-sm);
}

.hero-sub {
  font-size: 1rem;
  color: var(--slate);
  max-width: 480px;
  margin-bottom: var(--space-lg);
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.7rem;
  border-radius: 9px;
  font-weight: 600;
  font-size: 0.97rem;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--indigo);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--indigo-dark);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--navy);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--navy);
}

/* Hero visual: "live call" card */

.call-card {
  background: var(--navy);
  border-radius: 20px;
  padding: var(--space-lg);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.call-card::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.35), transparent 70%);
  pointer-events: none;
}

.call-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
  position: relative;
}

.call-card-label {
  font-size: 0.8rem;
  color: var(--slate-light);
  font-weight: 500;
}

.waveform {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 64px;
  margin-bottom: var(--space-lg);
  position: relative;
}

.waveform span {
  display: block;
  width: 4px;
  border-radius: 2px;
  background: var(--indigo);
  animation: wave 1.6s ease-in-out infinite;
}

.waveform span:nth-child(odd) { background: var(--amber); }

@keyframes wave {
  0%, 100% { height: 20%; }
  50% { height: 100%; }
}

.call-transcript {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: var(--space-md);
  font-size: 0.9rem;
  position: relative;
}

.call-transcript p {
  margin-bottom: 0.6rem;
  color: rgba(255, 255, 255, 0.85);
}

.call-transcript .caller { color: var(--slate-light); }

.call-transcript .booked {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.4rem;
  font-size: 0.78rem;
  color: var(--amber);
  font-weight: 600;
}

/* ============================================
   Trust strip
   ============================================ */

.trust-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--space-md) 0;
}

.trust-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  color: var(--slate);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* ============================================
   Section scaffolding
   ============================================ */

section {
  padding: var(--space-2xl) 0;
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-xl);
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--indigo);
  margin-bottom: var(--space-sm);
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: var(--space-sm);
}

.section-head p {
  color: var(--slate);
  font-size: 1.08rem;
}

/* ============================================
   How it works
   ============================================ */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.step {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: var(--space-lg) var(--space-md);
  position: relative;
}

.step-index {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--indigo);
  margin-bottom: var(--space-md);
}

.step h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.step p {
  color: var(--slate);
  font-size: 0.95rem;
}

/* connecting line between steps on desktop */
.steps {
  position: relative;
}

/* ============================================
   Demo section
   ============================================ */

.demo-section {
  background: var(--navy);
  color: var(--white);
  border-radius: 24px;
  margin: 0 var(--space-lg);
  padding: var(--space-2xl) var(--space-lg);
}

.demo-inner {
  max-width: 1180px;
  margin: 0 auto;
  text-align: center;
}

.demo-section .eyebrow { color: var(--amber); }

.demo-section h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.demo-section > .demo-inner > p {
  color: var(--slate-light);
  font-size: 1.08rem;
  max-width: 540px;
  margin: 0 auto var(--space-xl);
}

.video-frame {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-dark);
  border-radius: 16px;
  aspect-ratio: 16 / 9;
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 16px;
}

.play-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--slate-light);
}

.play-btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--indigo);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.play-btn:hover { transform: scale(1.06); }

.play-btn svg { width: 22px; height: 22px; fill: var(--white); }

/* ============================================
   CTA band
   ============================================ */

.cta-band {
  text-align: center;
  padding: var(--space-2xl) 0;
}

.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-band .hero-actions {
  justify-content: center;
}

/* ============================================
   Product page — capability list
   ============================================ */

.capabilities {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.capability {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: var(--space-lg);
  transition: border-color 0.2s ease;
}

.capability:hover {
  border-color: var(--indigo);
}

.capability-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--bg-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.capability-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--indigo);
}

.capability h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.capability p {
  color: var(--slate);
  font-size: 0.97rem;
}

/* ============================================
   Contact page
   ============================================ */

.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-2xl);
  align-items: start;
}

.contact-info h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4.5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: var(--space-md);
}

.contact-info > p {
  color: var(--slate);
  font-size: 1.1rem;
  max-width: 420px;
  margin-bottom: var(--space-xl);
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.contact-detail:last-child { border-bottom: none; }

.contact-detail-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--white);
}

.contact-detail-label {
  font-size: 0.82rem;
  color: var(--slate-light);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 0.2rem;
}

.contact-detail-value {
  font-size: 1.02rem;
  font-weight: 600;
}

.contact-form-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: var(--space-xl);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
  color: var(--navy);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  font-family: var(--font-body);
  font-size: 0.97rem;
  background: var(--bg);
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--indigo);
  background: var(--white);
}

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

.form-submit {
  width: 100%;
  margin-top: var(--space-xs);
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-xl) 0 var(--space-lg);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
  font-size: 0.9rem;
  color: var(--slate);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--slate-light);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .capabilities { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .trust-row { justify-content: center; text-align: center; }
}

@media (max-width: 680px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .steps { grid-template-columns: 1fr; }
  .hero { padding: var(--space-xl) 0; }
  .demo-section { margin: 0 var(--space-sm); padding: var(--space-xl) var(--space-md); }
  .container { padding: 0 var(--space-md); }
  .footer-row { flex-direction: column; align-items: flex-start; }
}