/* ==========================================================================
   Fundació Intermedia - Redisseny Modern Minimalista
   Colors:
     - Teal Corporatiu: #00A096
     - Dark Charcoal: #212934
     - Accent Yellow: #D1D200
     - Surface: #F8FAFC
   Tipografia: Open Sans
   ========================================================================== */

:root {
  --im-teal: #00A096;
  --im-teal-dark: #008980;
  --im-charcoal: #212934;
  --im-yellow: #D1D200;
  --im-surface: #F8FAFC;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Open Sans', system-ui, -apple-system, sans-serif;
  background-color: var(--im-surface);
  color: var(--im-charcoal);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

/* Custom Minimal Scrollbar */
::-webkit-scrollbar {
  width: 7px;
}
::-webkit-scrollbar-track {
  background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #00A096;
}

/* Story Scroll Sections */
[data-flow-section] {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.flow-art-container {
  will-change: transform;
  transform-origin: bottom left;
  transition: transform 0.1s ease-out;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.flow-art-card {
  max-height: 94vh;
  max-height: 94dvh;
  overflow-y: auto;
  scrollbar-width: thin;
}

/* En pantalles de 1896px a 1920px o superiors, mantenir exactament l'estat original sense scroll intern */
@media (min-width: 1800px) {
  .flow-art-card {
    max-height: none;
    overflow-y: visible;
  }
}

/* Secció de Cursos amb alçada fluida que permet trencar el límit de pantalla */
#cursos[data-flow-section] {
  min-height: 100vh;
  height: auto;
  overflow: visible;
  padding-bottom: 4rem;
}

#cursos .flow-art-container {
  min-height: 100vh;
  height: auto;
  align-items: flex-start;
}

#cursos .flow-art-card {
  max-height: none;
  overflow-y: visible;
}

/* Parallax Footer Reveal */
#flow-art-wrapper {
  position: relative;
  z-index: 20;
  background-color: #f8fafc;
  box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.25);
}

#main-footer {
  position: relative;
  z-index: 10;
  background-color: #1e293b;
  color: #ffffff;
  overflow: hidden;
}

.footer-parallax-inner {
  will-change: transform, opacity;
}

/* Hero Expansion will-change */
#hero-media-card {
  will-change: width, height, transform;
}

#hero-title-first,
#hero-title-rest {
  will-change: transform;
}

/* Glassmorphism details */
.glass-panel {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

/* Hero Iframe Zoom & Edge-to-Edge Clean Video */
.hero-video-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

#hero-iframe {
  width: 125%;
  height: 125%;
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
  transform: scale(3.28);
  transform-origin: center center;
  border: none;
  pointer-events: none;
  will-change: transform;
}

/* Header Dynamic State: Transparent at top, 100% pure white on scroll */
#main-header {
  transition: background-color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ====================================================================
   MEGAMENÚ — Estil 21st.dev navbar2 (Card Expansion)
   ==================================================================== */

/* Outer wrapper: centered, padded */
.mega-nav {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0.75rem 1rem;
}

/* The card container that expands when a dropdown opens */
.mega-nav__card {
  overflow: hidden;
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(226, 232, 240, 0.6);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 12px 32px -8px rgba(0,0,0,0.10);
  transition: box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

/* When header is not scrolled, card is transparent */
#main-header:not([data-scrolled="true"]) .mega-nav__card {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* When scrolled, card gets solid white */
#main-header[data-scrolled="true"] .mega-nav__card {
  background: rgba(255, 255, 255, 0.97);
  border-color: rgba(226, 232, 240, 0.6);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 12px 32px -8px rgba(0,0,0,0.10);
}

/* When a mega panel is open, always show solid card */
.mega-nav__card.mega-nav__card--open {
  background: rgba(255, 255, 255, 0.97) !important;
  border-color: rgba(226, 232, 240, 0.6) !important;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 20px 48px -12px rgba(0,0,0,0.15) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
}

/* Top bar: logo + nav + CTA */
.mega-nav__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 1.75rem;
}

.mega-nav__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

/* Desktop nav links */
.mega-nav__links {
  display: none;
  align-items: center;
  gap: 0.25rem;
}

@media (min-width: 1024px) {
  .mega-nav__links {
    display: flex;
  }
}

.mega-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
  border: none;
  background: transparent;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
  font-family: inherit;
}

/* Link colors: transparent state (white text) */
#main-header:not([data-scrolled="true"]) .mega-nav__link {
  color: #ffffff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}
#main-header:not([data-scrolled="true"]) .mega-nav__link:hover {
  color: #D1D200;
  background: rgba(255, 255, 255, 0.1);
}

/* Link colors: scrolled state (dark text) */
#main-header[data-scrolled="true"] .mega-nav__link {
  color: #475569;
  text-shadow: none;
}
#main-header[data-scrolled="true"] .mega-nav__link:hover,
#main-header[data-scrolled="true"] .mega-nav__link[aria-expanded="true"] {
  color: #0f172a;
  background: #f1f5f9;
}

/* Link colors: when mega panel is open (always dark) */
.mega-nav__card--open .mega-nav__link {
  color: #475569 !important;
  text-shadow: none !important;
}
.mega-nav__card--open .mega-nav__link:hover,
.mega-nav__card--open .mega-nav__link[aria-expanded="true"] {
  color: #0f172a !important;
  background: #f1f5f9 !important;
}

/* Chevron rotation */
.mega-nav__chevron {
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  flex-shrink: 0;
}

.mega-nav__trigger[aria-expanded="true"] .mega-nav__chevron {
  transform: rotate(180deg);
}

/* External link icon */
.mega-nav__link--external svg {
  opacity: 0.7;
  flex-shrink: 0;
}

/* CTA button */
.mega-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  background: #00A096;
  color: #ffffff;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background-color 0.2s, transform 0.1s;
  white-space: nowrap;
}

.mega-nav__cta:hover {
  background: #008980;
}

.mega-nav__cta:active {
  transform: scale(0.97);
}

.mega-nav__cta--full {
  width: 100%;
  padding: 0.75rem 1.5rem;
  font-size: 0.75rem;
}

/* Desktop CTA area */
.mega-nav__actions {
  display: none;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

@media (min-width: 1024px) {
  .mega-nav__actions {
    display: flex;
  }
}

/* Hamburger */
.mega-nav__hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 0.5rem;
  transition: color 0.2s;
}

#main-header:not([data-scrolled="true"]) .mega-nav__hamburger {
  color: #ffffff;
}

#main-header[data-scrolled="true"] .mega-nav__hamburger {
  color: #334155;
}

@media (min-width: 1024px) {
  .mega-nav__hamburger {
    display: none;
  }
}

/* ====================================================================
   MEGA PANELS (Desktop Dropdowns)
   ==================================================================== */
.mega-nav__panel {
  display: none;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              opacity 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.mega-nav__panel[aria-hidden="false"] {
  display: block;
  max-height: 500px;
  opacity: 1;
}

@media (max-width: 1023px) {
  .mega-nav__panel {
    display: none !important;
  }
}

/* Panel grid with image */
.mega-nav__panel-grid {
  padding: 0.5rem 2rem 2rem;
}

.mega-nav__panel-grid--with-image {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 2.5rem;
}

.mega-nav__panel-grid--compact {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem;
}

/* Column */
.mega-nav__column {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Eyebrow pill */
.mega-nav__eyebrow {
  display: inline-flex;
  align-self: flex-start;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  border: 1px solid rgba(226, 232, 240, 0.8);
  font-size: 0.6875rem;
  font-weight: 600;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: #f8fafc;
}

/* Submenu links */
.mega-nav__submenu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mega-nav__sublink {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: #0f172a;
  text-decoration: none;
  transition: color 0.2s;
}

.mega-nav__sublink:hover {
  color: #00A096;
}

.mega-nav__sublink--active {
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: #00A096;
}

/* Badge */
.mega-nav__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  background: #00A096;
  color: #ffffff;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mega-nav__sublink--badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

/* Preview image */
.mega-nav__preview {
  position: relative;
  width: 17rem;
  height: 15rem;
  border-radius: 1rem;
  overflow: hidden;
  flex-shrink: 0;
}

.mega-nav__preview--small {
  width: 14rem;
  height: 12rem;
}

.mega-nav__preview-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mega-nav__preview-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2.5rem 1rem 1rem;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  z-index: 1;
}

.mega-nav__preview-caption p {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 500;
  color: #ffffff;
}

/* ====================================================================
   MOBILE DRAWER
   ==================================================================== */
.mega-nav__mobile-drawer {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 40;
}

.mega-nav__mobile-drawer[aria-hidden="false"] {
  display: block;
}

@media (min-width: 1024px) {
  .mega-nav__mobile-drawer {
    display: none !important;
  }
}

.mega-nav__mobile-inner {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 12px 32px -8px rgba(0,0,0,0.12);
  padding: 1rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-height: 80vh;
  overflow-y: auto;
}

.mega-nav__mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0.75rem;
  border-radius: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #334155;
  text-decoration: none;
  background: transparent;
  border: none;
  cursor: pointer;
  width: 100%;
  text-align: left;
  font-family: inherit;
  transition: background-color 0.15s;
}

.mega-nav__mobile-link:hover {
  background: #f1f5f9;
}

.mega-nav__mobile-link--external {
  color: #00A096;
}

.mega-nav__mobile-group {
  border-bottom: 1px solid #f1f5f9;
}

/* Mobile chevron */
.mega-nav__mobile-chevron {
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  flex-shrink: 0;
}

.mega-nav__mobile-trigger[aria-expanded="true"] .mega-nav__mobile-chevron {
  transform: rotate(180deg);
}

/* Mobile sub-menu */
.mega-nav__mobile-sub {
  display: none;
  flex-direction: column;
  gap: 0.125rem;
  padding: 0 0.5rem 0.75rem 1.25rem;
  border-left: 2px solid #e2e8f0;
  margin-left: 0.75rem;
  margin-bottom: 0.5rem;
}

.mega-nav__mobile-sub[aria-hidden="false"] {
  display: flex;
}

.mega-nav__mobile-eyebrow {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #94a3b8;
  padding: 0.375rem 0.5rem 0.125rem;
}

.mega-nav__mobile-sublink {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.5rem;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: #475569;
  text-decoration: none;
  transition: background-color 0.15s, color 0.15s;
}

.mega-nav__mobile-sublink:hover {
  background: #f1f5f9;
  color: #00A096;
}

.mega-nav__mobile-cta {
  padding-top: 0.75rem;
  margin-top: 0.5rem;
  border-top: 1px solid #e2e8f0;
}

/* XL+ screens: slightly more spacing */
@media (min-width: 1280px) {
  .mega-nav__link {
    padding: 0.5rem 0.875rem;
    font-size: 0.75rem;
  }
  .mega-nav__cta {
    padding: 0.5625rem 1.5rem;
    font-size: 0.75rem;
  }
}

/* Programs Slider (Section 06) */
#programs-slider-container {
  touch-action: pan-y pinch-zoom;
}

#programs-slider-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

.programs-slide {
  user-select: none;
}