/* SENDev Landing Page – shares the Omnilearnix design language */

:root {
  --brand-steel: #586d75;
  --brand-teal: #42bbbe;
  --brand-green: #a7cc83;
  --brand-coral: #fc995f;
  --brand-lilac: #8590e0;
  --ink: #203038;
  --muted-ink: #4f646d;
  --surface: #ffffff;
  --line: #dbe6ea;

  /* SENDev accent – green-leaning teal */
  --sendev-primary: #a7cc83;
  --sendev-secondary: #42bbbe;
}

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

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background: #ffffff;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Background blobs ──────────────────────────── */
.page-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 6% 10%,  rgba(167, 204, 131, 0.18), transparent 28%),
    radial-gradient(circle at 94% 8%,  rgba(66, 187, 190, 0.14),  transparent 26%),
    radial-gradient(circle at 85% 80%, rgba(133, 144, 224, 0.12), transparent 28%),
    radial-gradient(circle at 10% 90%, rgba(167, 204, 131, 0.10), transparent 26%),
    #ffffff;
}

/* ── Layout ────────────────────────────────────── */
.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

/* ── Header ────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(219, 230, 234, 0.75);
  backdrop-filter: blur(8px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem 0;
}

.brand {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-wordmark {
  font-family: "Outfit", sans-serif;
  font-weight: 700;
  font-size: 1.45rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.brand-wordmark span {
  color: var(--sendev-secondary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-back {
  text-decoration: none;
  font-size: 0.87rem;
  font-weight: 700;
  color: var(--brand-steel);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  background: rgba(255, 255, 255, 0.9);
  transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.nav-back:hover {
  transform: translateY(-1px);
  color: #17373f;
  border-color: var(--brand-teal);
}

/* ── Shared button ─────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: "Manrope", sans-serif;
  font-weight: 700;
  border: none;
  border-radius: 0.8rem;
  padding: 0.78rem 1.3rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #102228;
  background: linear-gradient(135deg, var(--brand-green), var(--brand-teal));
  box-shadow: 0 10px 20px rgba(66, 187, 190, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 14px 28px rgba(66, 187, 190, 0.35);
}

.btn-outline {
  color: var(--brand-steel);
  border: 2px solid var(--line);
  background: var(--surface);
}

.btn-outline:hover {
  border-color: var(--brand-teal);
  color: var(--ink);
}

.btn-lg {
  padding: 0.9rem 1.7rem;
  font-size: 1.05rem;
}

/* ── Hero ──────────────────────────────────────── */
.hero {
  padding: 0 0 3.5rem;
  animation: reveal 0.75s ease both;
}

.hero-band {
  position: relative;
  width: 100vw;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  min-height: clamp(280px, 42vw, 460px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #133a44 0%, #1a5260 55%, #0d2b32 100%);
}

.hero-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 60%, rgba(167, 204, 131, 0.22), transparent 40%),
    radial-gradient(circle at 80% 30%, rgba(66, 187, 190, 0.18), transparent 38%);
}

.hero-band-inner {
  position: relative;
  z-index: 1;
  padding: clamp(2.5rem, 7vw, 4rem) 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 1rem;
  font-family: "Outfit", sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-green);
  font-weight: 700;
  background: rgba(167, 204, 131, 0.15);
  border: 1px solid rgba(167, 204, 131, 0.35);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
}

.hero-headline {
  font-family: "Outfit", sans-serif;
  font-size: clamp(2.1rem, 5.5vw, 3.8rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.15;
  max-width: 18ch;
  margin: 0 0 1.1rem;
  text-shadow: 0 4px 22px rgba(0, 0, 0, 0.3);
}

.hero-headline em {
  font-style: normal;
  background: linear-gradient(135deg, var(--brand-green), var(--brand-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(1rem, 2.2vw, 1.18rem);
  color: rgba(255, 255, 255, 0.8);
  max-width: 58ch;
  margin: 0 0 2rem;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.hero-note {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.52);
  margin: 0;
}

/* ── Trust strip ───────────────────────────────── */
.trust-strip {
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--line);
}

.trust-strip-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.trust-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--brand-steel);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.trust-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.trust-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted-ink);
  background: #f3f9f7;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.28rem 0.72rem;
}

.trust-chip svg {
  flex-shrink: 0;
}

/* ── Section shared ────────────────────────────── */
section {
  padding: 3.5rem 0;
}

.section-label {
  font-family: "Outfit", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sendev-secondary);
  margin: 0 0 0.6rem;
}

.section-heading {
  font-family: "Outfit", sans-serif;
  font-size: clamp(1.6rem, 3.8vw, 2.4rem);
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 0.85rem;
  line-height: 1.2;
}

.section-sub {
  color: var(--muted-ink);
  font-size: clamp(0.97rem, 2vw, 1.08rem);
  max-width: 60ch;
  margin: 0;
  line-height: 1.7;
}

/* ── How it works ──────────────────────────────── */
.how-it-works {
  background: #f6fbfb;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.how-it-works-head {
  margin-bottom: 2.5rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  position: relative;
}

/* connector line between steps */
.steps-grid::before {
  content: "";
  position: absolute;
  top: 2.1rem;
  left: calc(16.66% + 0.5rem);
  right: calc(16.66% + 0.5rem);
  height: 2px;
  background: linear-gradient(90deg, var(--brand-green), var(--brand-teal));
  opacity: 0.35;
  pointer-events: none;
}

.step-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.5rem 1.3rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  box-shadow: 0 8px 24px rgba(32, 48, 56, 0.05);
  animation: reveal 0.7s ease both;
}

.step-card:nth-child(2) { animation-delay: 0.1s; }
.step-card:nth-child(3) { animation-delay: 0.2s; }

.step-num {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-green), var(--brand-teal));
  color: #102228;
  font-family: "Outfit", sans-serif;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(66, 187, 190, 0.28);
}

.step-card h3 {
  font-size: 1.1rem;
  color: var(--ink);
  margin: 0;
}

.step-card p {
  font-size: 0.95rem;
  color: var(--muted-ink);
  margin: 0;
  line-height: 1.6;
}

/* ── Features ──────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2.5rem;
}

.feature-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.4rem 1.3rem;
  display: flex;
  gap: 1rem;
  box-shadow: 0 8px 24px rgba(32, 48, 56, 0.05);
  animation: reveal 0.7s ease both;
}

.feature-card:nth-child(2) { animation-delay: 0.08s; }
.feature-card:nth-child(3) { animation-delay: 0.16s; }
.feature-card:nth-child(4) { animation-delay: 0.24s; }

.feature-icon {
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.3rem;
  background: linear-gradient(135deg, rgba(167, 204, 131, 0.22), rgba(66, 187, 190, 0.18));
  border: 1px solid rgba(66, 187, 190, 0.2);
}

.feature-body h3 {
  font-size: 1.05rem;
  color: var(--ink);
  margin: 0 0 0.35rem;
}

.feature-body p {
  font-size: 0.92rem;
  color: var(--muted-ink);
  margin: 0;
  line-height: 1.6;
}

/* ── Testimonial / quote ───────────────────────── */
.quote-section {
  background: linear-gradient(135deg, #133a44 0%, #1a5260 100%);
  position: relative;
  overflow: hidden;
}

.quote-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 50%, rgba(167, 204, 131, 0.18), transparent 38%),
    radial-gradient(circle at 85% 50%, rgba(66, 187, 190, 0.15), transparent 38%);
}

.quote-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.quote-mark {
  font-size: 5rem;
  line-height: 1;
  color: var(--brand-green);
  opacity: 0.45;
  font-family: Georgia, serif;
  margin: 0 0 -1rem;
  display: block;
}

.quote-text {
  font-size: clamp(1.15rem, 2.8vw, 1.5rem);
  color: #ffffff;
  font-weight: 600;
  line-height: 1.55;
  margin: 0 0 1.2rem;
  font-style: italic;
}

.quote-attr {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}

/* ── Final CTA band ────────────────────────────── */
.cta-band {
  border-top: 1px solid var(--line);
  padding: 4rem 0;
  text-align: center;
}

.cta-band .section-heading {
  max-width: 22ch;
  margin: 0 auto 0.8rem;
}

.cta-band .section-sub {
  margin: 0 auto 1.8rem;
  text-align: center;
  max-width: 55ch;
}

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

.faq-list {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem 1.1rem;
  box-shadow: 0 8px 24px rgba(32, 48, 56, 0.05);
}

.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--ink);
}

.faq-item p {
  margin: 0.8rem 0 0;
  color: var(--muted-ink);
}

/* ── Footer ────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(247, 251, 252, 0.85);
}

.footer-wrap {
  padding: 1.1rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-wrap p {
  margin: 0;
  color: var(--muted-ink);
  font-size: 0.9rem;
}

.footer-link {
  color: var(--brand-teal);
  text-decoration: none;
  font-weight: 600;
}

.footer-link:hover {
  text-decoration: underline;
}

/* ── Animations ────────────────────────────────── */
@keyframes reveal {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ────────────────────────────────── */
@media (max-width: 850px) {
  .nav-wrap {
    flex-wrap: wrap;
    justify-content: center;
    padding: 0.4rem 0;
  }

  .nav-actions {
    width: 100%;
    justify-content: center;
  }

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

  .steps-grid::before {
    display: none;
  }

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

@media (max-width: 560px) {
  .hero-band {
    min-height: unset;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
}