@font-face {
  font-family: "Raleway";
  src: url("assets/Raleway-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Raleway";
  src: url("assets/Raleway-ExtraBold.ttf") format("truetype");
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --tierra: #322923;
  --arena: #baa58d;
  --antracita: #212322;
  --fondo: #f8f5f0;
  --blanco: #fff;
  --linea: rgb(50 41 35 / 16%);
  font-family: "Raleway", Arial, sans-serif;
  color: var(--tierra);
  background: var(--fondo);
}

* { box-sizing: border-box; }

body { margin: 0; min-width: 320px; }

.site-header {
  min-height: 88px;
  padding: 20px clamp(24px, 6vw, 96px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--fondo);
}

.brand-link { display: inline-flex; }
.brand { display: block; width: min(218px, 48vw); height: auto; }

.library { width: min(1120px, 100%); margin: 0 auto; padding: clamp(56px, 9vw, 112px) clamp(24px, 5vw, 48px) 96px; }
.intro { max-width: 700px; }
.eyebrow { margin: 0 0 16px; font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--arena); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 20px; font-size: clamp(2.2rem, 5vw, 4.3rem); line-height: 1.04; letter-spacing: -.045em; font-weight: 800; }
.lede { margin-bottom: 0; font-size: clamp(1rem, 2vw, 1.18rem); line-height: 1.65; color: var(--antracita); }

.search-panel { margin-top: 48px; max-width: 600px; }
.search-panel label { display: block; margin-bottom: 10px; font-size: .88rem; font-weight: 800; }
.search-field { min-height: 52px; display: flex; align-items: center; gap: 12px; padding: 0 16px; border: 1px solid var(--linea); border-radius: 2px; background: var(--blanco); }
.search-field:focus-within { border-color: var(--arena); box-shadow: 0 0 0 3px rgb(186 165 143 / 25%); }
.search-field svg { width: 20px; height: 20px; fill: none; stroke: var(--tierra); stroke-width: 1.6; flex: none; }
input { width: 100%; min-height: 44px; border: 0; outline: 0; background: transparent; color: var(--tierra); font: inherit; }
input::placeholder { color: rgb(50 41 35 / 55%); }

.categories { margin-top: 64px; }
.tutorial-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.tutorial-card { min-height: 224px; display: flex; flex-direction: column; align-items: flex-start; padding: 28px; border: 1px solid var(--linea); background: var(--blanco); transition: transform 160ms ease, border-color 160ms ease; }
.tutorial-card:hover { border-color: var(--arena); transform: translateY(-2px); }
.tutorial-card h3 { margin-bottom: 12px; font-size: 1.22rem; line-height: 1.28; font-weight: 800; }
.tutorial-description { margin-bottom: 14px; line-height: 1.55; color: var(--antracita); }
.tutorial-meta { margin: 0 0 18px; font-size: .82rem; letter-spacing: .04em; color: rgb(50 41 35 / 68%); }
.tutorial-video { width: 100%; aspect-ratio: 16 / 9; margin-top: auto; border: 0; background: var(--tierra); }
.tutorial-status { min-height: 44px; display: inline-flex; align-items: center; font-size: .87rem; font-weight: 800; text-decoration: none; color: var(--tierra); border-bottom: 1px solid var(--arena); }
.tutorial-status { border-bottom: 0; color: rgb(50 41 35 / 54%); }
.empty-state { padding: 28px; border: 1px solid var(--linea); color: var(--antracita); }

a:focus-visible, input:focus-visible { outline: 3px solid var(--arena); outline-offset: 4px; }

@media (max-width: 760px) {
  .site-header { min-height: 76px; }
  .site-header p { font-size: .68rem; }
  .library { padding-top: 56px; }
  .tutorial-grid { grid-template-columns: 1fr; }
  .tutorial-card { min-height: 0; padding: 24px; }
  .tutorial-card:hover { transform: none; }
  .categories { margin-top: 56px; }
}