/* Landing page — ThreadSense for Facebook */
.landing-main {
  padding-top: var(--ts-nav-h);
  overflow-x: clip;
}

/* Ambient background */
.landing-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.landing-bg__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  animation: orb-drift 18s ease-in-out infinite alternate;
}

.landing-bg__orb--1 {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(24, 119, 242, 0.55), transparent 70%);
  top: -120px;
  right: -80px;
}

.landing-bg__orb--2 {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.4), transparent 70%);
  bottom: 10%;
  left: -100px;
  animation-delay: -6s;
}

.landing-bg__orb--3 {
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(20, 184, 166, 0.35), transparent 70%);
  top: 40%;
  left: 45%;
  animation-delay: -12s;
}

.landing-bg__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black, transparent);
}

@keyframes orb-drift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(30px, -24px) scale(1.08); }
}

@media (prefers-reduced-motion: reduce) {
  .landing-bg__orb {
    animation: none;
  }
}

/* Hero */
.hero {
  padding: 4.5rem 0 5rem;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #93c5fd;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.25);
  margin-bottom: 1.25rem;
}

.hero__eyebrow span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 12px #22c55e;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

@media (prefers-reduced-motion: reduce) {
  .hero__eyebrow span { animation: none; }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.35rem, 5vw, 3.35rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
  font-weight: 800;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, #fff 0%, #93c5fd 45%, #c4b5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  font-size: 1.12rem;
  color: var(--ts-muted);
  max-width: 34rem;
  margin: 0 0 1.75rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.88rem;
  color: var(--ts-muted);
}

.hero__trust strong {
  display: block;
  color: var(--ts-text);
  font-size: 0.95rem;
}

.hero__support {
  margin: 1.75rem 0 0;
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--ts-muted);
  max-width: 34rem;
}

.feature-grid--benefits {
  grid-template-columns: repeat(3, 1fr);
}

.credibility-block p + p {
  color: var(--ts-muted);
  line-height: 1.65;
  margin: 0 0 1.25rem;
  max-width: 42rem;
}

.testimonial-block {
  margin: 1.75rem 0 0;
  padding: 1.25rem 1.5rem;
  border-radius: 14px;
  border: 1px solid var(--ts-border);
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid rgba(59, 130, 246, 0.55);
}

.testimonial-block p {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--ts-text);
  font-style: italic;
}

.cta-panel__tagline {
  margin: 1.35rem 0 0;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  color: #93c5fd;
}

/* Mock feed */
.hero-mock {
  position: relative;
  border-radius: 20px;
  border: 1px solid var(--ts-border);
  background: linear-gradient(165deg, rgba(15, 22, 40, 0.95), rgba(7, 11, 20, 0.98));
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 40px 80px rgba(0, 0, 0, 0.45);
  padding: 1.25rem;
  animation: mock-float 6s ease-in-out infinite;
}

@keyframes mock-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@media (prefers-reduced-motion: reduce) {
  .hero-mock { animation: none; }
}

.hero-mock__bar {
  display: flex;
  gap: 6px;
  margin-bottom: 1rem;
}

.hero-mock__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(148, 163, 184, 0.25);
}

.hero-mock__post {
  padding: 0.85rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  margin-bottom: 0.75rem;
}

.hero-mock__line {
  height: 8px;
  border-radius: 4px;
  background: rgba(148, 163, 184, 0.15);
  margin-bottom: 6px;
}

.hero-mock__line--short { width: 55%; }
.hero-mock__line--med { width: 78%; }

.hero-mock__comment {
  display: flex;
  gap: 0.65rem;
  padding: 0.65rem 0;
  border-top: 1px solid var(--ts-border);
  align-items: flex-start;
}

.hero-mock__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #334155, #1e293b);
  flex-shrink: 0;
}

.hero-mock__body {
  flex: 1;
  min-width: 0;
}

.hero-mock__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.5rem;
}

.badge-pill {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  letter-spacing: 0.02em;
  animation: badge-in 0.6s ease backwards;
}

.badge-pill--rude { background: rgba(249, 115, 22, 0.2); color: #fdba74; border: 1px solid rgba(249, 115, 22, 0.35); animation-delay: 0.2s; }
.badge-pill--pattern { background: rgba(168, 85, 247, 0.2); color: #d8b4fe; border: 1px solid rgba(168, 85, 247, 0.35); animation-delay: 0.35s; }
.badge-pill--scam { background: rgba(20, 184, 166, 0.2); color: #5eead4; border: 1px solid rgba(20, 184, 166, 0.35); animation-delay: 0.5s; }
.badge-pill--fake { background: rgba(59, 130, 246, 0.2); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.35); animation-delay: 0.65s; }

@keyframes badge-in {
  from { opacity: 0; transform: translateY(6px) scale(0.92); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.hero-mock__glow {
  position: absolute;
  inset: -1px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(24, 119, 242, 0.35), transparent 40%, rgba(168, 85, 247, 0.25));
  z-index: -1;
  opacity: 0.6;
  filter: blur(20px);
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section--tight {
  padding: 3.5rem 0;
}

.section__label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #93c5fd;
  margin-bottom: 0.75rem;
}

.section h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.35rem);
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  font-weight: 800;
}

.section__lead {
  color: var(--ts-muted);
  font-size: 1.05rem;
  max-width: 38rem;
  margin: 0 0 2.5rem;
}

/* Stats strip */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding: 1.5rem;
  border-radius: var(--ts-radius);
  background: var(--ts-bg-card);
  border: 1px solid var(--ts-border);
  backdrop-filter: blur(12px);
}

.stats-strip__item {
  text-align: center;
  padding: 0.5rem;
}

.stats-strip__value {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff, #93c5fd);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stats-strip__label {
  font-size: 0.82rem;
  color: var(--ts-muted);
  margin-top: 0.25rem;
}

/* Feature cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feature-card {
  padding: 1.5rem;
  border-radius: var(--ts-radius);
  background: var(--ts-bg-card);
  border: 1px solid var(--ts-border);
  backdrop-filter: blur(10px);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.35);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.feature-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 1rem;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
}

.feature-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ts-muted);
  line-height: 1.55;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}

.step-card {
  position: relative;
  padding: 1.75rem 1.5rem 1.5rem;
  border-radius: var(--ts-radius);
  border: 1px solid var(--ts-border);
  background: linear-gradient(180deg, rgba(24, 119, 242, 0.08), transparent);
}

.step-card::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: rgba(148, 163, 184, 0.2);
  margin-bottom: 0.5rem;
}

.step-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.step-card p {
  margin: 0;
  color: var(--ts-muted);
  font-size: 0.92rem;
}

/* Axes */
.axes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.axis-card {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--ts-radius);
  border: 1px solid var(--ts-border);
  background: var(--ts-bg-card);
  align-items: flex-start;
}

.axis-card__swatch {
  width: 4px;
  align-self: stretch;
  border-radius: 4px;
  flex-shrink: 0;
}

.axis-card--rude .axis-card__swatch { background: var(--ts-rude); }
.axis-card--pattern .axis-card__swatch { background: var(--ts-pattern); }
.axis-card--scam .axis-card__swatch { background: var(--ts-scam); }
.axis-card--fake .axis-card__swatch { background: var(--ts-fake); }

.axis-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.axis-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ts-muted);
}

/* Privacy block */
.privacy-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 2.5rem;
  border-radius: 20px;
  border: 1px solid rgba(34, 197, 94, 0.25);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.08), rgba(7, 11, 20, 0.6));
}

.privacy-block ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--ts-muted);
}

.privacy-block li {
  margin-bottom: 0.5rem;
}

.privacy-block__shield {
  font-size: 5rem;
  text-align: center;
  filter: drop-shadow(0 0 40px rgba(34, 197, 94, 0.35));
  animation: shield-pulse 4s ease-in-out infinite;
}

@keyframes shield-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.05); opacity: 0.9; }
}

@media (prefers-reduced-motion: reduce) {
  .privacy-block__shield { animation: none; }
}

/* FAQ */
.faq-list {
  max-width: 720px;
}

.faq-item {
  border-bottom: 1px solid var(--ts-border);
}

.faq-item summary {
  padding: 1.15rem 0;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--ts-muted);
  transition: transform 0.25s ease;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item__body {
  padding: 0 0 1.15rem;
  color: var(--ts-muted);
  font-size: 0.95rem;
}

/* CTA */
.cta-panel {
  text-align: center;
  padding: 3.5rem 2rem;
  border-radius: 24px;
  border: 1px solid var(--ts-border);
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(24, 119, 242, 0.2), transparent),
    var(--ts-bg-card);
}

.cta-panel h2 {
  margin-bottom: 0.75rem;
}

.cta-panel p {
  color: var(--ts-muted);
  max-width: 32rem;
  margin: 0 auto 1.5rem;
}

.cta-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 960px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }

  .hero-mock {
    max-width: 420px;
    margin-inline: auto;
  }

  .feature-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .stats-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .privacy-block {
    grid-template-columns: 1fr;
  }

  .privacy-block__shield {
    font-size: 3.5rem;
  }
}