:root {
  --purple-700: #6a4dad;
  --purple-600: #7c5cbf;
  --purple-500: #9b7fd4;
  --purple-400: #b49ae0;
  --purple-100: #f3eefb;
  --purple-50: #faf8fd;
  --ink: #111111;
  --ink-muted: #4a4a4a;
  --ink-soft: #6b6b6b;
  --white: #ffffff;
  --red-accent: #c0392b;
  --shadow: 0 18px 50px rgba(76, 52, 120, 0.12);
  --radius: 16px;
  --radius-lg: 24px;
  --font-sans: "DM Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--purple-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img,
video {
  max-width: 100%;
  display: block;
}

a {
  color: var(--purple-600);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1120px, calc(100% - 3rem));
  margin-inline: auto;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(250, 248, 253, 0.88);
  border-bottom: 1px solid rgba(124, 92, 191, 0.1);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.9rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
}

.logo {
  height: auto;
  object-fit: contain;
}

.logo--nav {
  width: 36px;
}

.logo--hero {
  width: min(280px, 72vw);
  filter: drop-shadow(0 20px 36px rgba(124, 92, 191, 0.22));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--ink-muted);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--purple-600);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.2rem;
  border-radius: 999px;
  background: var(--purple-600);
  color: var(--white) !important;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none !important;
  transition: transform 0.15s ease, background 0.15s ease;
  box-shadow: 0 6px 20px rgba(124, 92, 191, 0.28);
}

.nav-cta:hover {
  background: var(--purple-700);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  border: none;
  background: transparent;
  padding: 0.4rem;
  cursor: pointer;
}

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

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 4.5rem 0 5rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(165deg, rgba(155, 127, 212, 0.35) 0%, rgba(250, 248, 253, 0.95) 55%, var(--purple-50) 100%),
    url("assets/hero-bg.png") center / cover no-repeat;
  opacity: 0.9;
  z-index: 0;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.6rem, 5vw, 4rem);
  line-height: 1.05;
  margin: 0 0 0.5rem;
  letter-spacing: -0.03em;
}

.hero h1 .underline {
  display: inline-block;
  border-bottom: 4px solid var(--ink);
  padding-bottom: 0.1rem;
}

.hero .subtitle {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-style: italic;
  color: var(--ink-muted);
  margin: 0 0 1.25rem;
}

.hero .lead {
  font-size: 1.2rem;
  max-width: 34rem;
  margin: 0 0 2rem;
  color: var(--ink-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary {
  background: var(--purple-600);
  color: var(--white);
  box-shadow: 0 10px 30px rgba(124, 92, 191, 0.32);
}

.btn-primary:hover {
  background: var(--purple-700);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--white);
  color: var(--purple-600);
  border: 1px solid rgba(124, 92, 191, 0.25);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}


.hero-tagline {
  margin-top: 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--ink-soft);
}

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

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--purple-600);
  margin: 0 0 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.section-intro {
  font-size: 1.1rem;
  color: var(--ink-muted);
  max-width: 42rem;
  margin: 0 0 2.5rem;
}

/* Problem */
.problem {
  background: var(--white);
}

.problem-card {
  background: linear-gradient(135deg, var(--purple-100), var(--white));
  border: 1px solid rgba(124, 92, 191, 0.12);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow);
}

.problem-card p {
  font-size: 1.15rem;
  margin: 0;
  color: var(--ink-muted);
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.feature-card {
  background: var(--white);
  border: 1px solid rgba(124, 92, 191, 0.1);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: 0 8px 24px rgba(76, 52, 120, 0.06);
}

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

.feature-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.solution-highlight {
  margin-top: 2.5rem;
  max-width: 40rem;
}

.solution-highlight-title {
  font-size: 1.5rem;
  line-height: 1.2;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.solution-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.solution-list li {
  padding-left: 1.5rem;
  position: relative;
  color: var(--ink-muted);
}

.solution-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--purple-500);
}

/* Benefits */
.benefits {
  background: linear-gradient(180deg, var(--white) 0%, var(--purple-100) 100%);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.benefit-pill {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  border: 1px solid rgba(124, 92, 191, 0.1);
  font-weight: 600;
  color: var(--ink-muted);
}

/* Demo */
.demo {
  background: var(--ink);
  color: var(--white);
}

.demo .section-title,
.demo .section-intro {
  color: var(--white);
}

.demo .section-intro {
  color: rgba(255, 255, 255, 0.75);
}

.video-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #000;
}

.video-wrap video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* Contact */
.contact {
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 3rem;
  align-items: start;
}

.contact-info p {
  color: var(--ink-muted);
  margin: 0 0 1rem;
}

.contact-email-link {
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--purple-700);
  text-decoration: none;
}

.contact-email-link:hover {
  text-decoration: underline;
  color: var(--purple-600);
}

.contact-info .mono {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.contact-form {
  background: var(--purple-50);
  border: 1px solid rgba(124, 92, 191, 0.12);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-row.two-col {
  grid-template-columns: 1fr 1fr;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--ink-muted);
}

input,
textarea,
select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgba(124, 92, 191, 0.2);
  border-radius: 10px;
  font: inherit;
  background: var(--white);
  color: var(--ink);
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid rgba(124, 92, 191, 0.35);
  outline-offset: 1px;
}

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

.form-status {
  margin-top: 1rem;
  font-size: 0.9rem;
  min-height: 1.25rem;
}

.form-status.success {
  color: var(--purple-700);
}

.form-status.error {
  color: var(--red-accent);
}

/* Footer */
.footer {
  padding: 2rem 0 3rem;
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.footer .mono {
  font-family: var(--font-mono);
  margin-top: 0.5rem;
  font-size: 0.85rem;
}

/* Mobile */
@media (max-width: 900px) {
  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .logo--hero {
    width: min(200px, 55vw);
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(250, 248, 253, 0.98);
    border-bottom: 1px solid rgba(124, 92, 191, 0.1);
    padding: 0.5rem 1.5rem 1rem;
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    padding: 0.6rem 0;
    border-bottom: 1px solid rgba(124, 92, 191, 0.08);
  }

  .form-row.two-col {
    grid-template-columns: 1fr;
  }
}