/* ========================================
   Minimum Defensible Inventory — Landing Page
   Mobile-first responsive styles
   ======================================== */

/* ----- Reset & Base ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
  font-size: 18px;
  line-height: 1.65;
  color: #2b2b2b;
  background-color: #fff;
}

/* ----- Container ----- */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ----- Typography ----- */
h1,
h2,
h3 {
  line-height: 1.25;
  margin-top: 0;
  color: #1a1a1a;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.75em;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.6em;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5em;
}

p {
  margin-top: 0;
  margin-bottom: 1em;
}

ul {
  margin: 0;
  padding-left: 1.25em;
}

li {
  margin-bottom: 0.5em;
}

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

a {
  color: #1a5f7a;
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: #134a5f;
}

/* ----- Buttons ----- */
.btn {
  display: inline-block;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn-primary {
  background-color: #1a5f7a;
  color: #fff;
  border: none;
}

.btn-primary:hover {
  background-color: #134a5f;
  color: #fff;
  transform: translateY(-1px);
}

/* ----- Hero ----- */
.hero {
  padding: 64px 0 56px;
  background-color: #f8f9fa;
  border-bottom: 1px solid #e9ecef;
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #6c757d;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.subheadline {
  font-size: 1.125rem;
  color: #495057;
  max-width: 600px;
  margin-bottom: 28px;
}

.credibility {
  font-size: 0.875rem;
  color: #6c757d;
  margin-top: 16px;
  margin-bottom: 0;
}

/* ----- Section Spacing ----- */
section {
  padding: 64px 0;
}

section:nth-child(even) {
  background-color: #f8f9fa;
}

/* ----- Problem Section ----- */
.problems {
  background-color: #fff;
}

.problem-grid {
  display: grid;
  gap: 32px;
}

.problem-block h2 {
  font-size: 1.25rem;
  padding-bottom: 12px;
  border-bottom: 2px solid #1a5f7a;
  margin-bottom: 16px;
}

.problem-block ul {
  padding-left: 1.1em;
}

.problem-block li {
  margin-bottom: 12px;
}

.problem-summary {
  margin-top: 40px;
  padding: 20px 24px;
  background-color: #f8f9fa;
  border-left: 4px solid #1a5f7a;
  font-size: 1.0625rem;
}

/* ----- Solution Section ----- */
.solution h2 {
  margin-bottom: 24px;
}

.solution-intro {
  margin-bottom: 24px;
}

.solution-intro p {
  margin-bottom: 1em;
}

.solution-list {
  margin-bottom: 24px;
}

.solution-list li {
  margin-bottom: 12px;
}

.solution-note {
  font-size: 0.9375rem;
  color: #6c757d;
  padding: 16px 20px;
  background-color: #fff;
  border: 1px solid #e9ecef;
  border-radius: 6px;
}

/* ----- Audience Section ----- */
.audience-grid {
  display: grid;
  gap: 32px;
}

.audience-block {
  padding: 24px;
  border-radius: 8px;
}

.audience-block h3 {
  margin-bottom: 16px;
}

.for-you {
  background-color: #e8f4f8;
  border: 1px solid #b8dae6;
}

.not-for-you {
  background-color: #f5f5f5;
  border: 1px solid #e0e0e0;
}

/* ----- Process Section ----- */
.steps {
  display: grid;
  gap: 32px;
}

.step {
  position: relative;
  padding-left: 56px;
}

.step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #1a5f7a;
  color: #fff;
  font-size: 1.125rem;
  font-weight: 700;
  border-radius: 50%;
}

.step h3 {
  margin-top: 4px;
  margin-bottom: 8px;
}

.step p {
  margin-bottom: 0;
  color: #495057;
}

.process-cta {
  margin-top: 40px;
  padding: 20px 24px;
  background-color: #e8f4f8;
  border-radius: 6px;
  text-align: center;
  font-weight: 500;
}

/* ----- Waitlist Section ----- */
.waitlist {
  background-color: #fff;
}

.waitlist-card {
  max-width: 640px;
  margin: 0 auto;
  padding: 40px 32px;
  background-color: #f8f9fa;
  border: 1px solid #e9ecef;
  border-radius: 12px;
  text-align: center;
}

.waitlist-card h2 {
  margin-bottom: 16px;
}

.waitlist-card > p {
  color: #495057;
  margin-bottom: 24px;
}

.beehiiv-form {
  margin-top: 20px;
}

.beehiiv-embed {
  margin: 0 auto;
}

/* ----- FAQ Section ----- */
.faq h2 {
  margin-bottom: 32px;
}

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

.faq-item {
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid #e9ecef;
}

.faq-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.faq-item h3 {
  margin-bottom: 8px;
}

.faq-item p {
  margin-bottom: 0;
  color: #495057;
}

/* ----- Footer ----- */
.footer {
  padding: 40px 0;
  background-color: #f8f9fa;
  border-top: 1px solid #e9ecef;
  text-align: center;
}

.disclaimer {
  font-size: 0.875rem;
  color: #6c757d;
  margin-bottom: 8px;
}

.footer-links {
  margin: 20px 0;
}

.footer-links a {
  display: inline-block;
  margin: 0 12px;
  font-size: 0.875rem;
  color: #495057;
}

.footer-links a:hover {
  color: #1a5f7a;
}

.copyright {
  font-size: 0.8125rem;
  color: #adb5bd;
  margin-bottom: 0;
}

/* ========================================
   Desktop Styles (768px+)
   ======================================== */
@media (min-width: 768px) {
  h1 {
    font-size: 2.75rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .subheadline {
    font-size: 1.25rem;
  }

  section {
    padding: 80px 0;
  }

  /* Problem grid: 3 columns */
  .problem-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
  }

  /* Solution: two-column layout */
  .solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
  }

  .solution-note {
    max-width: 720px;
  }

  /* Audience: two columns */
  .audience-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  /* Steps: horizontal */
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
  }

  .step {
    padding-left: 0;
    padding-top: 60px;
    text-align: center;
  }

  .step-number {
    left: 50%;
    transform: translateX(-50%);
  }

  /* Waitlist card */
  .waitlist-card {
    padding: 48px 56px;
  }
}