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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #0f172a; /* slate-900 */
  background-color: #f4f4f5; /* zinc-100 */
  line-height: 1.6;
}

/* Layout helpers */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Brand colors */
:root {
  --color-bg: #f4f4f5;
  --color-surface: #ffffff;
  --color-border: #e4e4e7;
  --color-text-main: #0f172a;
  --color-text-muted: #4b5563;
  --color-primary: #0f172a; /* dark neutral / brand */
  --color-primary-soft: #111827;
  --color-accent: #4f46e5; /* subtle accent if needed */
  --color-cta: #0f172a;
  --radius-xl: 18px;
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.06);
}

/* Header / Nav */
.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.brand-badge {
  font-size: 0.75rem;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  color: #6b7280; /* slate-500 */
  padding: 0.5rem 0.2rem;
  position: relative;
}

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

.main-nav a.active {
  color: var(--color-text-main);
  font-weight: 600;
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text-main);
}

/* Mobile nav */
.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  cursor: pointer;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background-color: #0f172a;
  border-radius: 999px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle-bar + .nav-toggle-bar {
  margin-top: 4px;
}

@media (max-width: 768px) {
  .main-nav {
    position: absolute;
    inset-inline: 0;
    top: 64px;
    background-color: #ffffff;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 0.75rem 1.5rem 1.25rem;
    transform: translateY(-150%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
  }

  .site-header-inner {
    padding: 0.75rem 0;
  }
}

/* Hero */
.hero {
  padding: 3.5rem 0 3rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.hero-eyebrow {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #6b7280;
  margin-bottom: 0.75rem;
}

.hero-title {
  font-size: clamp(2.1rem, 3vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: 1.7rem;
  max-width: 34rem;
}

.hero-subtitle span {
  font-weight: 600;
  color: #111827;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  border-radius: 999px;
  padding: 0.75rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.16s ease, color 0.16s ease, box-shadow 0.16s ease,
    transform 0.05s ease;
}

.btn-primary {
  background-color: var(--color-cta);
  color: #ffffff;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  background-color: #020617;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: #ffffff;
  color: #111827;
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: #f9fafb;
}

/* Hero visual */
.hero-visual {
  background-color: #ffffff;
  border-radius: 24px;
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.hero-grid-block {
  height: 3.5rem;
  border-radius: 14px;
  background: radial-gradient(circle at 0% 0%, #e5e7eb, #d4d4d8);
}

/* Sections */
.section {
  padding: 3rem 0;
}

.section-header {
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.section-subtitle {
  color: var(--color-text-muted);
  max-width: 40rem;
}

/* Cards grid */
.card-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .card-grid--4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .card-grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.card {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 1.1rem 1.1rem 1.2rem;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.02);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.card-body {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  flex: 1;
}

.card-link {
  margin-top: 0.9rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: #111827;
}

/* Why section */
.two-column {
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .two-column {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.2fr);
  }
}

.pill {
  background-color: #fafafa;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 0.8rem 1rem;
  font-size: 0.9rem;
}

/* Lifecycle */
.lifecycle-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .lifecycle-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.lifecycle-item {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: 1.1rem;
  text-align: center;
}

.lifecycle-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

/* CTA banner */
.cta-banner {
  background-color: #020617;
  color: #e5e7eb;
  padding: 2.5rem 0;
}

.cta-inner {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .cta-inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

.cta-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.cta-text {
  color: #9ca3af;
}

/* Footer */
.site-footer {
  background-color: #ffffff;
  border-top: 1px solid var(--color-border);
  padding: 1.75rem 0;
}

.site-footer p {
  font-size: 0.85rem;
  color: #6b7280;
}

/* Inner pages */
.page-hero {
  padding: 3rem 0 2rem;
}

.page-title {
  font-size: 1.9rem;
  font-weight: 650;
  margin-bottom: 0.6rem;
}

.page-intro {
  color: var(--color-text-muted);
  max-width: 42rem;
}

.page-section {
  margin-top: 2rem;
  background-color: #ffffff;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  padding: 1.8rem 1.6rem;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.03);
}

.page-section h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.page-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-top: 1.1rem;
  margin-bottom: 0.35rem;
}

.page-section p,
.page-section li {
  font-size: 0.94rem;
  color: var(--color-text-muted);
}

.page-section ul {
  list-style: disc;
  padding-left: 1.2rem;
  margin-top: 0.4rem;
  display: grid;
  gap: 0.3rem;
}

/* Contact form */
.form-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .form-grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

label {
  font-size: 0.85rem;
  font-weight: 500;
  color: #374151;
  display: block;
  margin-bottom: 0.25rem;
}

input[type="text"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  font-size: 0.9rem;
  outline: none;
  background-color: #f9fafb;
}

input:focus,
textarea:focus,
select:focus {
  border-color: #111827;
  background-color: #ffffff;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

/* Small screens tweaks */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    padding-top: 2.4rem;
  }
}