/* =====================================================================
   Smells Like AI Spirit — IT Masters Forum 2026
   Identidad gráfica derivada del deck del workshop.
   ===================================================================== */

:root {
  --cream: #F5EFE6;
  --cream-soft: #EFE7D6;
  --tan: #E8DDC7;
  --tan-soft: #F0E8D5;
  --ink: #1A1814;
  --ink-soft: #4A4540;
  --ink-mute: #8a8378;
  --brick: #B23A1F;
  --brick-soft: #C5614A;
  --hairline: #BCB4A4;
  --hairline-soft: #D4CDB9;

  --shadow-sm: 0 1px 0 rgba(26, 24, 20, 0.04);
  --shadow-lift: 0 12px 32px -16px rgba(26, 24, 20, 0.25);

  --font-serif: Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, "Helvetica Neue", "Inter", Arial, sans-serif;
  --font-mono: "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

a {
  color: var(--brick);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}
a:hover { border-bottom-color: var(--brick); }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ===========================================================
   NAV STICKY
   =========================================================== */
nav.top {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 239, 230, 0.94);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--hairline);
}
nav.top .nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 16px;
}
nav.top .brand {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.4px;
  color: var(--ink-soft);
  text-transform: uppercase;
  white-space: nowrap;
}
nav.top .brand strong { color: var(--brick); font-weight: 600; }
nav.top ul {
  display: flex;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}
nav.top ul a {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--ink-soft);
  border-bottom: 0;
  letter-spacing: 0.2px;
}
nav.top ul a:hover { color: var(--brick); }
@media (max-width: 720px) {
  nav.top ul { display: none; }
}

/* ===========================================================
   HERO
   =========================================================== */
header.hero {
  padding: 96px 0 64px;
  border-bottom: 1px solid var(--hairline);
}
header.hero .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.8px;
  color: var(--brick);
  text-transform: uppercase;
  margin-bottom: 16px;
}
header.hero h1 {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(48px, 8vw, 88px);
  line-height: 1.02;
  letter-spacing: -1.2px;
  margin: 0 0 22px;
  color: var(--ink);
}
header.hero .subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(18px, 2.4vw, 24px);
  color: var(--ink-soft);
  max-width: 760px;
  line-height: 1.4;
  margin: 0 0 36px;
}
header.hero .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 48px 64px;
  margin-top: 32px;
}
header.hero .meta .item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
header.hero .meta .label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--ink-mute);
}
header.hero .meta .value {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--ink);
}
header.hero .meta .value small {
  display: block;
  font-family: var(--font-sans);
  font-size: 13px;
  font-style: normal;
  color: var(--ink-soft);
  margin-top: 2px;
}

/* ===========================================================
   SECTION
   =========================================================== */
section {
  padding: 80px 0;
  border-bottom: 1px solid var(--hairline);
}
section:last-of-type { border-bottom: 0; }
section .section-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.6px;
  color: var(--brick);
  text-transform: uppercase;
  margin-bottom: 14px;
}
section h2 {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.5px;
  margin: 0 0 16px;
  color: var(--ink);
}
section .lead {
  font-family: var(--font-sans);
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 720px;
  line-height: 1.6;
  margin: 0 0 40px;
}

/* ===========================================================
   AGENDA TIMELINE
   =========================================================== */
.agenda {
  display: grid;
  gap: 14px;
}
.agenda .block {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 28px;
  align-items: baseline;
  padding: 22px 26px;
  background: var(--cream-soft);
  border: 1px solid var(--hairline);
  border-radius: 4px;
}
.agenda .time {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 28px;
  color: var(--brick);
  letter-spacing: 0;
  line-height: 1;
}
.agenda .block-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 19px;
  color: var(--ink);
}
.agenda .block-desc {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--ink-soft);
  margin-top: 4px;
}
.agenda .duration {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 1px;
  text-transform: uppercase;
}
@media (max-width: 640px) {
  .agenda .block {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .agenda .duration { margin-top: 4px; }
}

/* ===========================================================
   FRAMEWORKS GRID
   =========================================================== */
.frameworks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 18px;
}
.fw-card {
  padding: 28px 24px 24px;
  background: var(--cream-soft);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.fw-card:hover {
  box-shadow: var(--shadow-lift);
  transform: translateY(-1px);
}
.fw-card .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.4px;
  color: var(--brick);
  margin-bottom: 10px;
}
.fw-card h3 {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 22px;
  margin: 0 0 12px;
  line-height: 1.2;
  color: var(--ink);
}
.fw-card p {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0 0 12px;
  line-height: 1.55;
}
.fw-card ul {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}
.fw-card ul li {
  font-size: 13px;
  color: var(--ink);
  padding: 6px 0;
  border-top: 1px solid var(--hairline-soft);
}
.fw-card ul li:first-child { border-top: 0; padding-top: 0; }
.fw-card .src {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.6px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--hairline-soft);
}

/* ===========================================================
   CASOS TABS
   =========================================================== */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--hairline);
}
.tab-btn {
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--ink-soft);
  padding: 14px 18px;
  cursor: pointer;
  letter-spacing: 0.2px;
  transition: color 0.15s ease, border-color 0.15s ease;
  margin-bottom: -1px;
}
.tab-btn .n {
  font-family: var(--font-mono);
  color: var(--brick);
  font-size: 11px;
  margin-right: 6px;
  letter-spacing: 1px;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active {
  color: var(--ink);
  border-bottom-color: var(--brick);
}
.tab-panel { display: none; }
.tab-panel.active {
  display: block;
  animation: fadein 0.25s ease-out;
}
@keyframes fadein {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.caso-head {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--hairline-soft);
}
.caso-head .sector {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  color: var(--brick);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.caso-head h3 {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 30px;
  margin: 0;
  line-height: 1.15;
  color: var(--ink);
  letter-spacing: -0.3px;
}

.caso-body {
  display: grid;
  gap: 22px;
}
.caso-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}
.caso-body .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.4px;
  color: var(--brick);
  text-transform: uppercase;
  margin: 12px 0 6px;
  display: block;
}
.caso-body .tension {
  padding: 18px 22px;
  background: var(--cream-soft);
  border-left: 3px solid var(--brick);
  border-radius: 2px;
}
.caso-body .tension .label { margin-top: 0; }
.caso-body .tension p { font-size: 14px; line-height: 1.65; }

/* ===========================================================
   CANVAS / DOWNLOAD
   =========================================================== */
.canvas-wrap {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 880px) {
  .canvas-wrap { grid-template-columns: 1fr; }
}
.canvas-preview {
  border: 1px solid var(--hairline);
  border-radius: 4px;
  overflow: hidden;
  background: white;
  box-shadow: var(--shadow-lift);
}
.canvas-preview embed,
.canvas-preview img {
  display: block;
  width: 100%;
  height: 560px;
}
.canvas-info h3 {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 24px;
  margin: 0 0 12px;
  color: var(--ink);
}
.canvas-info p {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.65;
  margin: 0 0 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  background: var(--ink);
  color: var(--cream);
  border: 0;
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.btn:hover {
  background: var(--brick);
  border-bottom: 0;
}
.btn .arrow { font-family: var(--font-mono); font-size: 16px; }
.btn.secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
}
.btn.secondary:hover { background: var(--ink); color: var(--cream); }
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

/* ===========================================================
   GUIDE (5 PREGUNTAS-EJE)
   =========================================================== */
.guide {
  display: grid;
  gap: 22px;
}
.q-card {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 28px;
  padding: 28px 28px;
  background: var(--cream-soft);
  border: 1px solid var(--hairline);
  border-radius: 4px;
}
@media (max-width: 720px) {
  .q-card { grid-template-columns: 1fr; gap: 12px; padding: 22px; }
}
.q-card .q-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--brick);
  letter-spacing: 1.2px;
}
.q-card .q-num strong {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 30px;
  color: var(--ink);
  margin-top: 2px;
  font-weight: 700;
}
.q-card h3 {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 22px;
  margin: 0 0 8px;
  line-height: 1.25;
  color: var(--ink);
}
.q-card .q-prompt {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 0 0 16px;
}
.q-card .how {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid var(--hairline-soft);
}
.q-card .how .step .step-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.3px;
  color: var(--brick);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.q-card .how .step p {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
  margin: 0;
}

/* ===========================================================
   FOOTER
   =========================================================== */
footer.site {
  padding: 60px 0 80px;
  background: var(--tan-soft);
  border-top: 1px solid var(--hairline);
}
footer.site .row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}
@media (max-width: 720px) {
  footer.site .row { grid-template-columns: 1fr; gap: 28px; }
}
footer.site h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.4px;
  color: var(--ink-mute);
  text-transform: uppercase;
  margin: 0 0 14px;
}
footer.site .lead {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--ink);
  line-height: 1.4;
  margin: 0 0 16px;
}
footer.site .credit {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.55;
}
footer.site .credit strong {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 16px;
  color: var(--ink);
  font-weight: 400;
  margin-bottom: 2px;
}
footer.site .legal {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--ink-mute);
  text-transform: uppercase;
}

/* ===========================================================
   UTILITIES
   =========================================================== */
.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
  z-index: 100;
  background: var(--ink);
  color: var(--cream);
  padding: 8px 14px;
  border-radius: 2px;
}

/* Print: keep the canvas section sensible if someone prints */
@media print {
  nav.top, footer.site { display: none; }
  section { page-break-inside: avoid; }
}