/* ============================================================
   EASY TRADING ACADEMY — Layout
   Header, footer, hero, grids de sección.
   ============================================================ */


/* ── HEADER ──────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(15, 15, 16, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--sp-3);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: var(--fw-bold);
  font-size: 18px;
  letter-spacing: -0.02em;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.logo-mark img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

.nav-links a {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  transition: color 0.2s;
  white-space: nowrap;
}

.nav-links a:hover    { color: var(--text-primary); }
.nav-links a.active   { color: var(--accent); }

/* Nav actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

/* Hamburger (mobile) */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
  transform-origin: center;
}

/* Hamburguesa → X cuando aria-expanded="true" */
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

@media (max-width: 900px) {
  .nav-links,
  .nav-actions { display: none; }

  .nav-toggle { display: flex; }

  /* Nav mobile desplegada */
  .nav-links.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-2);
    position: absolute;
    top: var(--header-height);
    left: 0; right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    padding: var(--sp-3);
    z-index: 99;
  }

  .nav-actions.open {
    display: flex;
    flex-direction: column;
    width: 100%;
    position: absolute;
    top: calc(var(--header-height) + 200px); /* se ajusta via JS */
    left: 0; right: 0;
    background: var(--bg-elevated);
    padding: var(--sp-2) var(--sp-3) var(--sp-3);
    border-bottom: 1px solid var(--border);
    z-index: 99;
  }
}


/* ── FOOTER ──────────────────────────────────────────────── */

.site-footer {
  background: #0A0A0B;
  padding: var(--sp-6) 0 var(--sp-4);
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-5);
  margin-bottom: var(--sp-5);
}

.footer-brand .logo {
  margin-bottom: var(--sp-2);
}

.footer-brand p {
  font-size: var(--fs-small);
  color: var(--text-muted);
  max-width: 300px;
  line-height: var(--lh-normal);
}

.footer-col h5 {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--sp-2);
}

.footer-col li { padding: 5px 0; }

.footer-col a {
  font-size: var(--fs-small);
  color: var(--text-secondary);
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  padding-top: var(--sp-4);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-4);
  }
}

@media (max-width: 540px) {
  .footer-grid { grid-template-columns: 1fr; }
}


/* ── HERO (home) ─────────────────────────────────────────── */

.hero {
  position: relative;
  padding: var(--sp-7) 0 var(--sp-6);
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(212, 160, 23, 0.08) 0%, transparent 60%),
    var(--bg-base);
  overflow: hidden;
  text-align: center;
}

/* Grid de fondo sutil */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin: 0 auto;
}

.hero h1 { margin-bottom: var(--sp-3); }

.hero .lead {
  margin: 0 auto var(--sp-4);
}

.hero-ctas {
  display: flex;
  gap: var(--sp-2);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--sp-5);
}


/* ── PAGE HERO (subpáginas) ──────────────────────────────── */

.page-hero {
  position: relative;
  padding: var(--sp-6) 0 var(--sp-5);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center top, black 10%, transparent 65%);
  -webkit-mask-image: radial-gradient(ellipse at center top, black 10%, transparent 65%);
  pointer-events: none;
}

.page-hero .container { position: relative; z-index: 1; }

.page-hero h1 { margin-bottom: var(--sp-2); }

.page-hero .lead { max-width: 640px; }


/* ── SECCIÓN CON BG ELEVADO ──────────────────────────────── */

.section--elevated {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}


/* ── CTA FINAL ───────────────────────────────────────────── */

.cta-final {
  text-align: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(212, 160, 23, 0.1) 0%, transparent 65%),
    var(--bg-base);
  border-top: 1px solid var(--border);
}

.cta-final.section--elevated {
  background:
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(212, 160, 23, 0.1) 0%, transparent 65%),
    var(--bg-elevated);
}

.cta-final .container { position: relative; z-index: 1; }
.cta-final h2 { margin-bottom: var(--sp-2); }
.cta-final .lead { margin: 0 auto var(--sp-4); }
.cta-final .hero-ctas { margin-bottom: 0; }


/* ── GRIDS DE SECCIÓN ────────────────────────────────────── */

/* 3 columnas (cursos, testimonios, metodología) */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
  align-items: stretch;
}

/* 4 columnas (journey steps, stats) */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-3);
}

/* 2 columnas (instructor, hero-split) */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-5);
  align-items: center;
}

.grid-2--wide {
  grid-template-columns: 1.4fr 1fr;
}

/* Responsive */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 540px) {
  .grid-4 { grid-template-columns: 1fr; }
}