:root {
  --bg: #f5efe6;
  --panel: #fffdf9;
  --panel-alt: #f3e7d5;
  --ink: #1d1b1a;
  --muted: #655d57;
  --primary: #8d5a2b;
  --primary-dark: #6e431b;
  --accent: #d7b98a;
  --success: #3d7a4f;
  --danger: #a4432c;
  --shadow: 0 18px 50px rgba(56, 35, 18, 0.14);
  /* Superficies que deben cambiar con el tema */
  --superficie-fila: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.9),
    rgba(250, 242, 232, 0.92)
  );
  --btn-suave-bg: #efe3d1;
  --btn-suave-ink: var(--primary-dark);
}

:root[data-theme="dark"] {
  --bg: #1c1a17;
  --panel: #262320;
  --panel-alt: #2c2925;
  --ink: #f2ede4;
  --muted: #b3ab9d;
  --primary: #e08c46;
  --primary-dark: #f0a868;
  --accent: #4a3c2c;
  --success: #6bbf82;
  --danger: #e07a5f;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
  --superficie-fila: linear-gradient(145deg, #302c27, #282521);
  --btn-suave-bg: #3a352f;
  --btn-suave-ink: #f0d9bd;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--ink);
  transition:
    background 0.2s ease,
    color 0.2s ease;
}

body {
  min-height: 100vh;
  padding: 24px;
}

.wrap {
  width: min(980px, 100%);
  margin: 0 auto;
}

.sitenav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(141, 90, 43, 0.16);
  margin-bottom: 18px;
  font-size: 0.92rem;
  flex-wrap: wrap;
  gap: 10px;
}

.sitenav .nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.sitenav a,
.sitenav button {
  font-family: inherit;
  font-size: inherit;
  color: var(--muted);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 0;
}

.sitenav a.active {
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
  font-weight: 700;
}

.sitenav button#themeToggle {
  color: var(--primary);
  font-weight: 700;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.08;
}

.subtitle {
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 60ch;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--btn-suave-bg);
  color: var(--btn-suave-ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
}

.status-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(61, 122, 79, 0.12);
  border: 1px solid rgba(61, 122, 79, 0.3);
  color: var(--success);
  font-weight: 800;
  border-radius: 16px;
  padding: 14px 18px;
  margin: 18px 0;
}

.status-banner small {
  display: block;
  color: var(--muted);
  font-weight: 500;
  margin-top: 2px;
}

.path {
  background: var(--panel);
  border: 1px solid rgba(141, 90, 43, 0.16);
  border-radius: 22px;
  padding: 20px 22px;
  margin: 18px 0 28px;
  box-shadow: var(--shadow);
}

.path h2 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}

.path-levels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.path-level {
  background: var(--panel-alt);
  border-radius: 14px;
  padding: 12px 14px;
}

.path-level h3 {
  margin: 0 0 6px;
  font-size: 0.85rem;
  color: var(--primary-dark);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.path-level ol {
  margin: 0;
  padding-left: 18px;
  font-size: 0.86rem;
  color: var(--ink);
}

.theme {
  margin-bottom: 30px;
}

.theme-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
}

.theme-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  font-weight: 800;
  flex-shrink: 0;
}

.theme-header h2 {
  margin: 0;
  font-size: 1.25rem;
}

.grid {
  display: grid;
  gap: 16px;
}

.proj-card {
  background: var(--panel);
  border: 1px solid rgba(141, 90, 43, 0.16);
  border-radius: 22px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.proj-summary {
  width: 100%;
  text-align: left;
  background: var(--superficie-fila);
  border: none;
  cursor: pointer;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  font-family: inherit;
  color: inherit;
}

.proj-summary-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.proj-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin: 0;
}

.badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.badge {
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: rgba(141, 90, 43, 0.1);
  color: var(--primary-dark);
}

.badge.level-Principiante {
  background: rgba(61, 122, 79, 0.14);
  color: var(--success);
}

.badge.level-Intermedio {
  background: rgba(141, 90, 43, 0.14);
  color: var(--primary-dark);
}

.badge.level-Avanzado {
  background: rgba(164, 67, 44, 0.14);
  color: var(--danger);
}

.stars {
  color: var(--primary);
  font-size: 0.95rem;
  letter-spacing: 2px;
}

.chevron {
  font-size: 1.3rem;
  color: var(--primary);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.proj-card.open .chevron {
  transform: rotate(180deg);
}

.proj-body {
  display: none;
  padding: 4px 20px 22px;
}

.proj-card.open .proj-body {
  display: block;
}

.section {
  margin-top: 16px;
}

.section h4 {
  margin: 0 0 6px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary-dark);
}

.section p,
.section ul,
.section ol {
  margin: 0;
  color: var(--ink);
  line-height: 1.55;
}

.section ul,
.section ol {
  padding-left: 20px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

pre {
  background: #2b2420;
  color: #f3e7d5;
  padding: 14px 16px;
  border-radius: 14px;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.5;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.meta-item {
  background: var(--panel-alt);
  border-radius: 12px;
  padding: 10px 12px;
}

.meta-item span {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 3px;
}

.next-proj {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(141, 90, 43, 0.08);
  font-weight: 700;
  color: var(--primary-dark);
}

@media (max-width: 640px) {
  .two-col {
    grid-template-columns: 1fr;
  }
  .proj-summary {
    flex-direction: column;
    align-items: flex-start;
  }
}