/* ==========================================================================
   Layering keeps cascade predictable: base → components → utilities
   ========================================================================== */
@layer base, components, utilities;

/* ==========================================================================
   1) Base (mobile-first defaults)
   ========================================================================== */
@layer base {
  /* Fonts */
  @font-face {
    font-family: "Monoton";
    src: url("../fonts/Monoton/Monoton-Regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
  }

  @font-face {
    font-family: "Rubik";
    src: url("../fonts/rubik/Rubik-Regular.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
  }

  @font-face {
    font-family: "Rubik";
    src: url("../fonts/rubik/Rubik-Bold.woff2") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
  }

  @font-face {
    font-family: "Rubik";
    src: url("../fonts/rubik/Rubik-Italic.woff2") format("woff2");
    font-weight: 400;
    font-style: italic;
    font-display: swap;
  }

  :root {
    /* Theme */
    --bg: #6B0000;
    --fg: #fff;

    /* Layout */
    --max-content: 900px;
    --footer-h: 4rem;

    /* Decor */
    --dash: 2px dashed var(--fg);
    --dash-invert: 2px dashed var(--bg);

    /* Type scale root */
    font-size: 16px;
  }

  /* Page variants (scoped by body class) */
  body.about { --bg: #0A014F; }
  body.contact { --bg: #FB5012; }

  /* Sensible defaults/reset */
  html { font-size: clamp(14px, 1.6vw, 18px); }

  *, *::before, *::after {
    box-sizing: border-box;
    min-width: 0;
  }

  body {
    margin: 0;
    font-family: "Rubik", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    color: var(--fg);
    background: transparent;
    overflow-x: hidden;
  }

  body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: var(--bg);
    z-index: -1;
  }

  /* Typography */
  h1, h2, h3 {
    margin: 0;
    font-family: "Monoton", cursive;
    font-weight: 400;
    color: var(--fg);
    line-height: 1.25;
    text-transform: lowercase;
    letter-spacing: 0.08em;
  }

  h1 {
    font-size: clamp(2rem, 8vw, 5rem);
    letter-spacing: 0.12em;
    line-height: 1.2;
  }

  h2 {
    font-size: clamp(1.25rem, 6vw, 3rem);
    overflow-wrap: break-word;
    padding: 1rem 0;
  }

  h3 { font-size: clamp(1rem, 4.5vw, 2rem); }

  h2:first-of-type {
    margin-top: 0;
    padding-top: 0;
  }

  h3.rubik {
    font-family: "Rubik", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    font-weight: 700;
    text-transform: uppercase;
  }

  p { margin: 0 0 1.5em; }

  a {
    color: var(--fg);
    text-decoration: underline;
  }

  a.no-underline { text-decoration: none; }

  hr {
    border: none;
    border-top: var(--dash);
    margin: 2rem auto;
    width: 20%;
  }

  .article-meta {
    margin: 0 0 1rem;
    font-size: 0.9em;
    font-style: italic;
    color: var(--fg);
  }

  /* Motion safety */
  @media (prefers-reduced-motion: no-preference) {
    :where(a, button, .interactive) {
      transition:
        color 0.2s ease,
        background-color 0.2s ease,
        box-shadow 0.2s ease,
        outline-color 0.2s ease;
    }
  }
}

/* ==========================================================================
   2) Components
   ========================================================================== */
@layer components {
  /* Shared section chrome */
  header,
  nav,
  .hero-heading,
  .container,
  article,
  section {
    border: var(--dash);
    border-radius: 0;
    padding: 2rem;
  }

  nav,
  .hero-heading,
  footer {
    border-left: none;
    border-right: none;
    border-top: none;
  }

  /* Container */
  .container {
    width: 100%;
    max-width: var(--max-content);
    margin-inline: auto;
    margin-block: 0;
    padding: 1rem;
    border-top: var(--dash);
    flex: 1 0 auto;
  }

  /* Article */
  article {
    padding: 2em;
    z-index: 5;
  }

  /* Footer */
  footer {
    position: relative;
    z-index: 9;
    display: block;
    width: 100%;
    min-height: var(--footer-h);
    margin-top: 2rem;
    padding: 1.5rem;
    text-align: center;
    border-top: var(--dash);
    color: var(--fg);
  }

  /* Nav */
  nav {
    margin-bottom: 2rem;
    padding: 0;
    border-bottom: var(--dash);
  }

  nav ul {
    display: flex;
    flex-direction: column; /* mobile stack */
    align-items: center;
    gap: 0.25rem;
    flex-wrap: wrap;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  nav li { display: flex; }

  nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2rem;        /* stable height on mobile */
    padding: 0 0.75rem;      /* use padding on the link, not the li */
    width: 100%;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.75rem;      /* ~28px @ root 16 */
    text-transform: lowercase;
    color: var(--fg);
  }

  /* Hover/focus: invert without layout shift */
  nav li:is(:hover, :focus-within) { cursor: pointer; }

  nav li:is(:hover, :focus-within) a {
    color: var(--bg);
    background: var(--fg);
    outline: var(--dash);
    outline-offset: -2px;    /* keeps outline inside */
  }

  /* Hero */
  .hero-heading {
    position: relative;
    width: 100%;
    padding-block: 0.75rem;
    text-align: center;
    color: var(--fg);
  }

  img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center bottom;
  }

  /* Book placeholder box ratio */
  .ratio-row {
    display: flex;
    flex-direction: column; /* mobile-first: stack */
    align-items: center;
    gap: 0;
  }

  /* IMPORTANT: auto flex-basis so aspect-ratio defines height in column layout */
  .ratio-box,
  .ratio-box-blurb {
    flex: 1 1 auto;          /* was 1 1 50% which can collapse in column flex */
    width: 100%;
    max-width: 100%;
    margin: 1rem 0 1.75rem;
  }

  /* ratio-box specific styling */
  .ratio-box {
    position: relative;
    aspect-ratio: 4 / 6;
    background: var(--fg);
    color: var(--bg);
    overflow: hidden;
    z-index: 0;
  }

  .ratio-box img {
    filter: contrast(1.5);
    border: var(--dash-invert);
  }

  /* Blurb content */
  .ratio-box-blurb { line-height: 1.4; }

  .blurb-title {
    font-family: "Monoton", cursive;
    font-size: clamp(1.25rem, 6vw, 2rem);
    text-transform: lowercase;
    letter-spacing: 0.08em;
  }

  /* Aspect-ratio fallback */
  @supports not (aspect-ratio: 1/1) {
    .ratio-box {
      height: 0;
      padding-top: calc(6 / 4 * 100%); /* 4:6 ratio */
    }

    .ratio-box > * {
      position: absolute;
      inset: 0;
    }
  }

  .about article {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;  /* ensures content centers vertically if needed */
    text-align: center;
    gap: 1.5rem;
    width: 100%;
  }

  .about img {
    flex-grow: 2;
    height: 50vh;
    object-fit: cover;
    display: block;           /* ensures it behaves predictably inside flex */
    border: var(--dash);
  }

  .about p {
    text-align: left;
    flex-grow: 1;
  }

  /* Forms (scoped to .contact page) */
  .contact article { text-align: center; }

  .contact h3 {
    overflow: auto;
  }

  .contact form {
    margin: 2em 0;
    text-align: center;
  }

  .contact form div { margin-bottom: 1.5em; }

  .contact label {
    display: block;
    margin-bottom: 0.5em;
    color: var(--fg);
  }

  .contact :is(input[type="text"], input[type="email"], textarea, button) {
    width: 100%;
    font-family: "Rubik", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    color: var(--bg);
    background: var(--fg);
    padding: 0.5rem 0.75rem;
    border: none;
    border-radius: 0;
    outline-offset: 4px;
    text-align: left;
  }

  .contact button {
    width: 50%;
    cursor: pointer;
    font-weight: 700;
    font-size: 1.1rem;
    text-transform: lowercase;
    text-align: center;
  }

  .contact button:hover {
    background: var(--bg);
    color: var(--fg);
    outline: var(--dash);
    outline-offset: -2px;
  }
}

/* ==========================================================================
   3) Utilities & Breakpoints (progressive enhancements)
   ========================================================================== */
@layer utilities {
  /* ≥421px */
  @media (min-width: 421px) {
    .container { padding: 1rem; }

    .ratio-box { max-width: 300px; }

    .ratio-box__inner { padding: 0.5rem; }

    .ratio-box__inner :is(h2, .rtext) {
      font-size: clamp(0.95rem, 5.5vw, 1.9rem);
    }
  }

  /* ≥641px */
  @media (min-width: 641px) {
    .container {
      width: 90%;
      padding: 1.5rem;
    }

    nav ul {
      flex-direction: row;
      align-items: center;
      gap: 0.5rem;
      justify-content: center;
    }

    nav a { min-height: 4rem; }

    .ratio-box { max-width: 360px; }
  }

  /* ≥701px: side-by-side with explicit 50% basis again */
  @media (min-width: 701px) {
    .ratio-row {
      flex-direction: row;
      align-items: flex-start;
      gap: 2rem;
    }

    .ratio-box,
    .ratio-box-blurb {
      flex: 1 1 50%;
      max-width: 50%;
    }

    .about article {
      flex-direction: row;
      text-align: left;
      gap: 2rem;
    }
  }
}