/* Minimal layout — visual design to be added later */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: #1a1a1a;
  background: #fff;
}

.container {
  width: min(1120px, 100% - 2rem);
  margin-inline: auto;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid #e8e8e8;
  backdrop-filter: blur(8px);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  background: #111;
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
}

.logo-text {
  display: flex;
  flex-direction: column;
  font-size: 0.875rem;
  line-height: 1.3;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  font-size: 0.9375rem;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover {
  text-decoration: underline;
}

/* Sections */

section {
  padding-block: 4rem;
}

section + section {
  border-top: 1px solid #f0f0f0;
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #666;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 3rem);
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
}

p {
  margin: 0 0 1rem;
}

p:last-child {
  margin-bottom: 0;
}

.lead {
  font-size: 1.125rem;
  color: #333;
}

.section-intro,
.section-note,
.fine-print {
  color: #555;
}

.fine-print {
  margin-top: 1rem;
  font-size: 0.875rem;
}

/* Hero */

.hero {
  padding-block: 3rem 4rem;
}

.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: #111;
  color: #fff;
}

.btn-secondary {
  border-color: #ccc;
}

.hero-notes {
  margin: 0;
  padding-left: 1.25rem;
  color: #444;
}

.hero-notes li + li {
  margin-top: 0.35rem;
}

.hero-visual figcaption,
.interface-grid figcaption {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: #666;
}

/* Placeholder screens */

.placeholder-screen {
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 1.5rem;
  border: 1px dashed #ccc;
  border-radius: 0.75rem;
  background: #f7f7f7;
  color: #777;
  text-align: center;
}

.placeholder-label {
  font-size: 0.875rem;
  font-weight: 600;
}

/* Stats */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.stats-grid li {
  padding: 1.25rem;
  border: 1px solid #e8e8e8;
  border-radius: 0.75rem;
}

.stats-grid strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.stats-grid span {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.9375rem;
  color: #555;
}

/* Cards */

.card-grid {
  display: grid;
  gap: 1rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

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

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

.card,
.case-card {
  padding: 1.5rem;
  border: 1px solid #e8e8e8;
  border-radius: 0.75rem;
}

.card-number,
.step-number {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: #888;
}

/* Cases */

.case-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

@media (min-width: 900px) {
  .case-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.case-tags span {
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: #f0f0f0;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: lowercase;
}

.case-result {
  margin-top: 1rem;
  font-size: 0.9375rem;
}

/* Interfaces */

.interface-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

@media (min-width: 900px) {
  .interface-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.interface-grid figure {
  margin: 0;
}

/* Steps */

.steps-list {
  display: grid;
  gap: 1rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.steps-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.25rem;
  border: 1px solid #e8e8e8;
  border-radius: 0.75rem;
}

/* Lists */

.bullet-list,
.signal-list {
  margin: 1.5rem 0 0;
  padding-left: 1.25rem;
}

.bullet-list li + li,
.signal-list li + li {
  margin-top: 0.5rem;
}

/* Contact */

.contact {
  background: #f7f7f7;
}

.contact-inner {
  max-width: 42rem;
}

/* Footer */

.site-footer {
  padding-block: 2rem;
  border-top: 1px solid #e8e8e8;
  font-size: 0.875rem;
  color: #555;
}

.footer-inner p + p {
  margin-top: 0.35rem;
}