/* css/first-rule.css */

:root {
  --fr-bg: #0a0a0a;
  --fr-text: #e0e0e0;
  --fr-accent: #ff0000;
  --fr-border: #333333;
  --fr-font-head: "Anton", sans-serif;
  --fr-font-mono: "Roboto Mono", monospace;
}

.fr-page-wrapper {
  background-color: var(--fr-bg);
  color: var(--fr-text);
  width: 100%;
  min-height: 100vh;
  padding-bottom: 10vh;
  overflow-x: hidden;
}

.fr-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  border-left: 1px solid var(--fr-border);
  border-right: 1px solid var(--fr-border);
}

.fr-header {
  padding: 15vh 0 5vh 0;
}

.fr-main-title {
  font-family: var(--fr-font-head);
  font-size: clamp(4rem, 12vw, 10rem);
  line-height: 0.85;
  text-transform: uppercase;
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
}

.fr-red {
  color: var(--fr-accent);
  display: block;
}

.fr-intro-text {
  font-family: var(--fr-font-mono);
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  max-width: 100%;
  line-height: 1.6;
  margin-left: auto;
  border-left: 6px solid var(--fr-accent);
  padding-left: 2rem;
  letter-spacing: 0.05em;
}

.fr-highlight {
  margin-top: 2rem;
  font-weight: 700;
  background: var(--fr-text);
  color: var(--fr-bg);
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1.25em;
  letter-spacing: 0.05em;
}

.fr-divider {
  width: 100%;
  height: 2px;
  background: var(--fr-border);
  margin: 4rem 0;
}

.fr-section {
  display: grid;
  grid-template-columns: 1fr 4fr;
  gap: 2rem;
  padding: 4rem 0;
  opacity: 1;
}

.fr-index {
  font-family: var(--fr-font-head);
  font-size: 4rem;
  color: var(--fr-border);
  line-height: 1;
}

.fr-body h2 {
  font-family: var(--fr-font-head);
  font-size: clamp(2.5rem, 5vw, 5rem);
  text-transform: uppercase;
  margin-bottom: 2rem;
  line-height: 1;
}

.fr-strike {
  text-decoration: line-through;
  text-decoration-color: var(--fr-accent);
  text-decoration-thickness: 5px;
  color: #666;
}

.fr-body p,
.fr-list li {
  font-family: var(--fr-font-mono);
  font-size: 1.125rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  color: #bbb;
}

.fr-sub-block {
  margin-left: 2rem;
  padding-left: 2rem;
  border-left: 1px solid var(--fr-border);
  margin-bottom: 2rem;
}

.fr-sub-block h3 {
  font-family: var(--fr-font-head);
  font-size: 2rem;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: var(--fr-text);
}

.fr-alert {
  border: 1px solid var(--fr-text);
  padding: 1.5rem;
  font-family: var(--fr-font-mono);
  font-size: 1rem;
  text-transform: uppercase;
}

.fr-alert-red {
  border-color: var(--fr-accent);
  color: var(--fr-accent);
}

.fr-blink {
  animation: fr-blink-anim 1s infinite;
  background: var(--fr-accent);
  color: black;
  padding: 0 4px;
}

@keyframes fr-blink-anim {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

.fr-list {
  list-style: none;
}

.fr-list li {
  margin-bottom: 2rem;
}

.fr-list strong {
  color: var(--fr-text);
  font-weight: 700;
  background: #333;
  padding: 2px 6px;
  margin-right: 10px;
}

.fr-giant-text {
  font-family: var(--fr-font-head);
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1;
  color: #222;
  text-shadow:
    -1px -1px 0 var(--fr-text),
    1px -1px 0 var(--fr-text),
    -1px 1px 0 var(--fr-text),
    1px 1px 0 var(--fr-text);
  margin: 2rem 0;
  text-transform: uppercase;
}

.fr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.fr-box {
  background: #1a1a1a;
  padding: 2rem;
  border: 1px dashed var(--fr-border);
  font-family: var(--fr-font-mono);
}

.fr-footer {
  text-align: center;
  padding: 10rem 0 5rem 0;
  font-family: var(--fr-font-mono);
  font-size: clamp(3rem, 5vw, 6rem);
  font-weight: 700;
  opacity: 1;
  letter-spacing: 0.1em;
  color: var(--fr-accent);
}

/* ==========================================================================
   MOBILE & TABLET PORTRAIT LAYOUT
   JS-DRIVEN: body.layout-mobile
   ========================================================================== */
body.layout-mobile .fr-page-wrapper {
  min-height: 100dvh;
  padding-bottom: 10dvh;
}

body.layout-mobile .fr-container {
  padding-top: max(1rem, env(safe-area-inset-top));
  padding-bottom: max(1rem, env(safe-area-inset-bottom));
  padding-left: max(1.5rem, env(safe-area-inset-left));
  padding-right: max(1.5rem, env(safe-area-inset-right));
}

body.layout-mobile .fr-header {
  padding: 0;
  min-height: 85dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

body.layout-mobile .fr-section {
  grid-template-columns: 1fr;
  padding: 2rem 0;
}

body.layout-mobile .fr-grid {
  grid-template-columns: 1fr;
}

body.layout-mobile .fr-index {
  font-size: 2rem;
  border-bottom: 1px solid var(--fr-border);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
  width: max-content;
}

body.layout-mobile .fr-intro-text {
  border-left: none;
  border-top: 6px solid var(--fr-accent);
  padding-left: 0;
  padding-top: 2rem;
}

@media (min-width: 768px) {
  body.layout-mobile .fr-main-title {
    font-size: clamp(5rem, 14vw, 10rem);
  }

  body.layout-mobile .fr-intro-text {
    font-size: clamp(2.2rem, 4.5vw, 3rem);
  }

  body.layout-mobile .fr-intro-text p:first-of-type {
    font-size: 1.2em;
  }

  body.layout-mobile .fr-body h2 {
    font-size: clamp(3rem, 6vw, 5rem);
  }

  body.layout-mobile .fr-giant-text {
    font-size: clamp(4rem, 9vw, 6rem);
  }

  body.layout-mobile .fr-footer {
    font-size: clamp(3.5rem, 6vw, 6rem);
  }

  body.layout-mobile .fr-body p,
  body.layout-mobile .fr-list li {
    font-size: 2rem;
  }

  body.layout-mobile .fr-index {
    font-size: 4.5rem;
  }

  body.layout-mobile .fr-sub-block h3 {
    font-size: 2.2rem;
  }

  body.layout-mobile .fr-box {
    font-size: 1.7em;
    padding: 2.24rem;
  }

  body.layout-mobile .fr-alert {
    font-size: 1.4em;
    padding: 1.68rem;
  }
}

/* ==========================================================================
   THE MIDDLE GROUND: LANDSCAPE TABLETS & SMALL LAPTOPS
   JS-DRIVEN: body.layout-landscape-tablet
   ========================================================================== */
body.layout-landscape-tablet .fr-page-wrapper {
  min-height: 100dvh;
  padding-bottom: 5dvh;
}

body.layout-landscape-tablet .fr-container {
  width: 64vw;
  margin: 0 auto;
  padding: 0 1.5rem;
}

body.layout-landscape-tablet .fr-header {
  padding: 8vh 0 3vh 0;
}

body.layout-landscape-tablet .fr-main-title {
  font-size: clamp(3.5rem, 8vw, 6.5rem);
}

body.layout-landscape-tablet .fr-intro-text {
  font-size: clamp(1.6rem, 2.5vw, 2rem);
}

body.layout-landscape-tablet .fr-body h2 {
  font-size: clamp(2.2rem, 3.5vw, 3rem);
}

body.layout-landscape-tablet .fr-giant-text {
  font-size: clamp(2.5rem, 6vw, 4rem);
}

body.layout-landscape-tablet .fr-footer {
  font-size: clamp(3rem, 4.5vw, 4.5rem);
  padding: 6rem 0 3rem 0;
}

body.layout-landscape-tablet .fr-section {
  grid-template-columns: 1fr 4.5fr;
  gap: 1.5rem;
  padding: 3rem 0;
}

body.layout-landscape-tablet .fr-sub-block {
  margin-left: 1.25rem;
  padding-left: 1.25rem;
  margin-bottom: 1.5rem;
}

body.layout-landscape-tablet .fr-grid {
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

body.layout-landscape-tablet .fr-box,
body.layout-landscape-tablet .fr-alert {
  padding: 1.25rem;
}