/* ═══════════════════════════════════════
   funciones.css  —  UCPHDE
   ═══════════════════════════════════════ */

/* ══ HERO ══════════════════════════════ */
.logo-txt {
    filter: brightness(0) invert(1);
}

.fn-hero {
  position: relative;
  min-height: 58vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background-image: url(../img/e2.jpg);
  background-size: cover;
  background-position: center 30%;
}
.fn-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg,
      rgba(10, 18, 43, .88) 0%,
      rgba(10, 18, 43, .70) 55%,
      rgba(34, 205, 231, .18) 100%);
}
.fn-hero-inner {
  position: relative;
  z-index: 1;
  padding: 9rem 0 4.5rem;
}
.fn-hero h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.6rem);
  color: #fff;
  font-weight: 800;
  line-height: 1.12;
  max-width: 800px;
  text-shadow: 0 3px 24px rgba(0, 0, 0, .45);
}
.fn-hero h1 em {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--teal);
}
.fn-hero-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 1.75rem;
}
.fn-hero-chip {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-size: .75rem;
  color: rgba(255, 255, 255, .65);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 20px;
  padding: .28rem .95rem;
  font-weight: 600;
  letter-spacing: .04em;
}
.fn-hero-chip::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--teal);
  border-radius: 50%;
  flex-shrink: 0;
}


/* ══ SCROLL REVEAL ══════════════════════ */
.fn-reveal--left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity .7s cubic-bezier(.4,0,.2,1), transform .7s cubic-bezier(.4,0,.2,1);
}
.fn-reveal--right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity .7s cubic-bezier(.4,0,.2,1), transform .7s cubic-bezier(.4,0,.2,1);
}
.fn-revealed { opacity: 1 !important; transform: none !important; }

@media (prefers-reduced-motion: reduce) {
  .fn-reveal--left,
  .fn-reveal--right { transition: none; opacity: 1; transform: none; }
}


/* ══ BAND BASE ══════════════════════════ */
.fn-band { padding: 3.5rem 0; }

.fn-band-inner {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 4rem;
  align-items: start;
  width: min(1000px, 100% - 3rem);
  margin-inline: auto;
}
.fn-band--alt .fn-band-inner   { grid-template-columns: 1fr 110px; }
.fn-band--alt .fn-icon-wrap    { order: 2; }

/* ── Color variants ── */
.fn-band--teal    { background: linear-gradient(135deg, #d0f5fa 0%, #e4fafb 100%); }
.fn-band--white   { background: #fff; }
.fn-band--navy    { background: linear-gradient(135deg, #1a2d6b 0%, #0f1e4c 100%); }
.fn-band--orange  { background: linear-gradient(135deg, #fce8c8 0%, #fdf2e0 100%); }
.fn-band--green   { background: linear-gradient(135deg, #c8e6cb 0%, #ddf0de 100%); }
.fn-band--magenta { background: linear-gradient(135deg, #e8c8f0 0%, #f2dff7 100%); }
/* Imagen de fondo — cambia la url por la foto que prefieras */
.fn-band--dark {
  background: url(../img/fondo-conclusiones.webp) center/cover no-repeat fixed;
  position: relative;
}
.fn-band--dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, .88);
  pointer-events: none;
}
.fn-band--dark .fn-band-inner {
  position: relative;
  z-index: 1;
}


/* ══ ICON WRAP ══════════════════════════ */
.fn-icon-wrap {
  width: 110px;
  height: 110px;
  border-radius: 24px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: transform .4s ease, box-shadow .4s ease;
}
.fn-icon-wrap:hover      { transform: translateY(-4px) scale(1.05); }
.fn-icon-wrap svg        { width: 48px; height: 48px; transition: transform .3s ease; }
.fn-icon-wrap:hover svg  { transform: scale(1.1); }

.fn-icon--teal {
  background: rgba(14, 143, 163, .15);
  border: 1.5px solid rgba(14, 143, 163, .25);
  color: var(--teal-dark);
}
.fn-icon--teal:hover    { box-shadow: 0 8px 28px rgba(14, 143, 163, .22); }

.fn-icon--dark {
  background: rgba(15, 30, 76, .1);
  border: 1.5px solid rgba(15, 30, 76, .18);
  color: var(--navy);
}
.fn-icon--dark:hover    { box-shadow: 0 8px 28px rgba(15, 30, 76, .18); }

.fn-icon--navy {
  background: rgba(255, 255, 255, .1);
  border: 1.5px solid rgba(255, 255, 255, .2);
  color: var(--teal);
}
.fn-icon--navy:hover    { box-shadow: 0 8px 28px rgba(34, 205, 231, .18); }

.fn-icon--orange {
  background: rgba(212, 133, 29, .15);
  border: 1.5px solid rgba(212, 133, 29, .25);
  color: #b06e12;
}
.fn-icon--orange:hover  { box-shadow: 0 8px 28px rgba(212, 133, 29, .22); }

.fn-icon--green {
  background: rgba(37, 107, 43, .15);
  border: 1.5px solid rgba(37, 107, 43, .22);
  color: var(--green);
}
.fn-icon--green:hover   { box-shadow: 0 8px 28px rgba(37, 107, 43, .20); }

.fn-icon--magenta {
  background: rgba(127, 32, 151, .15);
  border: 1.5px solid rgba(127, 32, 151, .22);
  color: var(--magenta);
}
.fn-icon--magenta:hover { box-shadow: 0 8px 28px rgba(127, 32, 151, .20); }


/* ══ BLOCK CONTENT ══════════════════════ */
.fn-block-content { padding-top: .5rem; }

.fn-block-tag {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .14em;
  margin-bottom: .5rem;
  color: var(--teal);
}
.fn-block-content h2 {
  font-size: clamp(1.5rem, 2.5vw, 1.95rem);
  color: var(--navy);
  margin-bottom: 1rem;
  line-height: 1.25;
  letter-spacing: -.015em;
}
.fn-block-content h2 em {
  font-family: var(--font-display);
  font-style: italic;
}
.fn-block-content > p {
  color: #4a4a5a;
  font-size: .95rem;
  line-height: 1.85;
  margin-bottom: .9rem;
}
.fn-block-content > p:last-child { margin-bottom: 0; }
.fn-block-content strong { color: var(--navy); font-weight: 700; }
.fn-block-content em     { color: #1a7a8c; font-style: italic; }
.fn-block-content sup    { color: var(--teal); font-weight: 700; }

/* ── Color overrides per band ── */
.fn-band--teal .fn-block-tag              { color: var(--teal-dark); }
.fn-band--teal .fn-block-content h2 em    { color: var(--teal-dark); }

.fn-band--navy .fn-block-tag              { color: var(--teal); }
.fn-band--navy .fn-block-content h2       { color: rgba(255,255,255,.9); }
.fn-band--navy .fn-block-content h2 em    { color: var(--teal); font-family: var(--font-display); font-style: italic; }
.fn-band--navy .fn-block-content > p      { color: rgba(255,255,255,.75); }
.fn-band--navy .fn-block-content strong   { color: #fff; }
.fn-band--navy .fn-block-content sup      { color: var(--teal); }

.fn-band--orange .fn-block-tag            { color: #b06e12; }
.fn-band--orange .fn-block-content h2     { color: #5a3500; }
.fn-band--orange .fn-block-content h2 em  { color: #b06e12; font-family: var(--font-display); font-style: italic; }
.fn-band--orange .fn-block-content > p    { color: #4a3010; }
.fn-band--orange .fn-block-content strong { color: #5a3500; }
.fn-band--orange .fn-block-content sup    { color: #b06e12; }

.fn-band--green .fn-block-tag             { color: #256b2b; }
.fn-band--green .fn-block-content h2 em   { color: #256b2b; font-family: var(--font-display); font-style: italic; }

.fn-band--magenta .fn-block-tag           { color: var(--magenta); }
.fn-band--magenta .fn-block-content h2 em { color: var(--magenta); font-family: var(--font-display); font-style: italic; }

.fn-band--dark .fn-block-tag              { color: var(--teal-dark); }
.fn-band--dark .fn-block-content h2       { color: var(--navy); }
.fn-band--dark .fn-block-content h2 em    { color: var(--teal-dark); font-family: var(--font-display); font-style: italic; }
.fn-band--dark .fn-block-content > p      { color: #4a4a5a; }
.fn-band--dark .fn-block-content strong   { color: var(--navy); }
.fn-band--dark .fn-block-content em       { color: #1a7a8c; }
.fn-band--dark .fn-block-content sup      { color: var(--teal-dark); }


/* ══ TWO-COL LAYOUT (Band 1) ════════════ */
.fn-two-col {
   display: grid;
  grid-template-columns: 1fr; /* una columna */
  gap: 2rem;
 
}


/* ══ LISTA CRUZADA (Band 5) ══════════════ */
.fn-list {
  list-style: none;
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.fn-list li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: .92rem;
  line-height: 1.65;
  color: #4a4a5a;
}
.fn-list li strong { color: var(--navy); font-weight: 700; }

.fn-list--cross li { align-items: flex-start; }
.fn-list-icon--cross {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(176, 110, 18, .18);
  color: #b06e12;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1;
  display: inline-grid;
  place-items: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.fn-band--orange .fn-list li        { color: #4a3010; }
.fn-band--orange .fn-list li strong { color: #5a3500; }


/* ══ BLOCKQUOTE Y NOTAS ══════════════════ */
.fn-band-quote {
  margin: 1.25rem 0 0;
  padding: 1rem 1.5rem;
  border-left: 3px solid rgba(14, 143, 163, .5);
  font-style: italic;
  font-family: var(--font-display);
  color: #1a6070;
  font-size: 1rem;
  line-height: 1.7;
}
.fn-band--teal .fn-band-quote {
  border-left-color: rgba(14, 143, 163, .5);
  color: #0d4a57;
  background: rgba(14, 143, 163, .07);
  border-radius: 0 4px 4px 0;
}

.fn-block-content .fn-band-note {
  margin-top: 1.25rem;
  padding: .85rem 1.1rem;
  background: rgba(176, 110, 18, .1);
  border-left: 3px solid #b06e12;
  font-size: .875rem;
  color: #4a3010;
  line-height: 1.65;
  border-radius: 0 4px 4px 0;
}
.fn-block-content .fn-band-note strong { color: #5a3500; }
.fn-block-content .fn-band-note sup    { color: #b06e12; font-weight: 700; }


/* ══ PRINCIPIOS HEADER ═══════════════════ */
.fn-principios-header {
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
  /* Imagen de fondo — cambia la url por la foto que prefieras */
  background: url(../img/YOUR_IMAGE_HERE.jpg) center/cover no-repeat fixed;
}
.fn-principios-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, .88);
  pointer-events: none;
}
.fn-ph-inner {
  position: relative;
  z-index: 1;
  width: min(1000px, 100% - 3rem);
  margin-inline: auto;
}
.fn-ph-tag {
  display: block;
  color: var(--teal-dark) !important;
  margin-bottom: 1.25rem;
}
.fn-ph-inner h2 {
  font-size: clamp(1.05rem, 2.2vw, 1.45rem);
  color: var(--navy);
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 2rem;
  letter-spacing: -.01em;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid rgba(14, 143, 163, .3);
}
.fn-ph-inner h2 em {
  color: var(--teal-dark);
  font-family: var(--font-display);
  font-style: italic;
}
.fn-ph-text p {
  color: #4a4a5a;
  font-size: .95rem;
  line-height: 1.85;
  margin-bottom: 1rem;
}
.fn-ph-text p:last-child {
  margin-bottom: 0;
  padding: .85rem 1.1rem;
  border-left: 3px solid rgba(14, 143, 163, .4);
  background: rgba(14, 143, 163, .06);
  border-radius: 0 4px 4px 0;
}
.fn-ph-text strong { color: var(--navy); font-weight: 700; }


/* ══ ACORDEÓN (Premisas + Metodología) ═════════ */
.fn-accordion {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  margin-top: 2rem;
}

.fn-acc-item {
  background: #fff;
  border: 1px solid rgba(15, 30, 76, .1);
  border-radius: 10px;
  overflow: hidden;
  transition: background .25s, box-shadow .25s;
  box-shadow: 0 2px 8px rgba(15, 30, 76, .06);
}
.fn-acc-item:hover {
  box-shadow: 0 4px 16px rgba(15, 30, 76, .1);
}

/* Colores de acento por borde izquierdo */
.fn-acc-item--green   { border-left: 4px solid #4caf50; }
.fn-acc-item--navy    { border-left: 4px solid #5c6bc0; }
.fn-acc-item--orange  { border-left: 4px solid #ef9a3e; }
.fn-acc-item--magenta { border-left: 4px solid #c74ad6; }
.fn-acc-item--teal    { border-left: 4px solid var(--teal); }

/* Cabecera clicable */
.fn-acc-hd {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
  padding: 1.1rem 1.4rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--navy);
  text-align: left;
}

.fn-acc-num {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--teal);
  opacity: .6;
  line-height: 1;
  flex-shrink: 0;
}
.fn-acc-item--green .fn-acc-num   { color: #4caf50; }
.fn-acc-item--navy .fn-acc-num    { color: #7986cb; }
.fn-acc-item--orange .fn-acc-num  { color: #ef9a3e; }
.fn-acc-item--magenta .fn-acc-num { color: #c74ad6; }

.fn-acc-title {
  flex: 1;
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .01em;
}

.fn-acc-chevron {
  flex-shrink: 0;
  color: rgba(15, 30, 76, .3);
  transition: transform .4s cubic-bezier(.4,0,.2,1), color .2s;
}
.fn-acc-item.is-open .fn-acc-chevron {
  transform: rotate(180deg);
  color: var(--teal-dark);
}

/* Cuerpo desplegable */
.fn-acc-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .5s cubic-bezier(.4,0,.2,1), padding .5s;
  padding: 0 1.4rem;
}
.fn-acc-item.is-open .fn-acc-body {
  max-height: 600px;
  padding: 0 1.4rem 1.3rem;
}

.fn-acc-body p {
  color: #4a4a5a;
  font-size: .9rem;
  line-height: 1.75;
  margin-bottom: .7rem;
}
.fn-acc-body p:last-child { margin-bottom: 0; }
.fn-acc-body strong { color: var(--navy); font-weight: 700; }
.fn-acc-body sup { color: var(--teal-dark); font-weight: 700; }

/* Lista de prohibiciones dentro del acordeón */
.fn-acc-body .fn-list { margin: .8rem 0; }
.fn-acc-body .fn-list li { color: #4a4a5a; }
.fn-acc-body .fn-band-note {
  margin-top: .8rem;
  padding: .75rem 1rem;
  border-left: 3px solid #ef9a3e;
  background: rgba(239, 154, 62, .08);
  border-radius: 0 4px 4px 0;
  font-size: .85rem;
}

/* Acordeón en sección blanca (metodología) */
.fn-band--white .fn-accordion {
  margin-top: 1.5rem;
}
.fn-band--white .fn-acc-item {
  background: #e8f8fa;
  border: 1px solid rgba(14, 143, 163, .2);
  border-left: 4px solid var(--teal);
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(14, 143, 163, .08);
  overflow: hidden;
}
.fn-band--white .fn-acc-item:hover {
  background: #d0f2f6;
  box-shadow: 0 4px 16px rgba(14, 143, 163, .14);
}
.fn-band--white .fn-acc-hd {
  color: var(--navy);
}
.fn-band--white .fn-acc-body {
  max-height: 0;
  overflow: hidden;
}
.fn-band--white .fn-acc-item.is-open .fn-acc-body {
  max-height: 600px;
}
.fn-band--white .fn-acc-body p {
  color: #4a4a5a;
  font-size: .9rem;
  line-height: 1.75;
}

/* Responsive */
@media (max-width: 480px) {
  .fn-acc-hd { padding: .9rem 1rem; gap: .7rem; }
  .fn-acc-num { font-size: 1.1rem; }
  .fn-acc-title { font-size: .85rem; }
  .fn-acc-body { padding: 0 1rem; }
  .fn-acc-item.is-open .fn-acc-body { padding: 0 1rem 1rem; }
}


/* ══ CONCLUSION TRIO (Band 9) ════════════ */
.fn-conclusion-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.75rem 0;
}

.fn-conclusion-feat {
  position: relative;
  background: var(--navy);
  border-radius: 0;
  padding: 2rem 1.5rem 1.75rem;
  overflow: hidden;
  border-top: 3px solid var(--teal);
  transition: transform .25s, box-shadow .25s;
}
.fn-conclusion-feat:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(15,30,76,.18);
}
.fn-conclusion-feat::before {
  content: attr(data-n);
  position: absolute;
  bottom: -2rem; right: .5rem;
  font-family: var(--font-display);
  font-size: 9rem;
  font-weight: 800;
  color: rgba(34,205,231,.07);
  line-height: 1;
  user-select: none;
  pointer-events: none;
}

/* Solo en fn-seccion los números se ven más */
.fn-seccion .fn-conclusion-feat::before {
  color: rgba(34,205,231,.18);
}
.fn-conclusion-feat p {
  color: rgba(255,255,255,.85);
  font-size: .875rem;
  line-height: 1.88;
  position: relative;
  z-index: 1;
  margin: 0;
}
.fn-conclusion-feat strong { color: #fff; }

/* Dark band overrides (now light with image bg) */
.fn-band--dark .fn-conclusion-trio { margin: 1.5rem 0; }
.fn-band--dark .fn-conclusion-feat {
  background: #fff;
  border: 1px solid rgba(15, 30, 76, .1);
  border-top: 3px solid var(--teal);
  box-shadow: 0 2px 12px rgba(15, 30, 76, .08);
}
.fn-band--dark .fn-conclusion-feat::before { color: rgba(14, 143, 163, .08); }
.fn-band--dark .fn-conclusion-feat p       { color: #4a4a5a; }
.fn-band--dark .fn-conclusion-feat strong  { color: var(--navy); }


/* ══ FIRMA INSTITUCIONAL ══════════════════ */
.fn-firma {
  padding: 1.1rem 1.5rem;
  background: #f7f9fc;
  border: 1px solid rgba(15,30,76,.1);
  border-top: 3px solid var(--teal);
  text-align: center;
  color: var(--navy);
  font-weight: 800;
  font-size: .88rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.fn-band--dark .fn-firma {
  background: #fff;
  border: 1px solid rgba(15, 30, 76, .1);
  border-left: 4px solid var(--teal);
  color: var(--navy);
}


/* ══ REFERENCIAS ══════════════════════════ */
.fn-referencias {
  padding: 3.5rem 0 3rem;
  background: #f4f6fb;
  border-top: 3px solid var(--teal);
  position: relative;
  overflow: hidden;
}

.fn-referencias-inner {
  max-width: 100%;
  position: relative;
  z-index: 1;
}
.fn-ref-titulo {
  font-size: .7rem;
  font-weight: 700;
  color: var(--navy);
  text-transform: uppercase;
  letter-spacing: .14em;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}
.fn-ref-titulo::before {
  content: '';
  width: 20px; height: 2px;
  background: var(--teal);
  border-radius: 2px;
  flex-shrink: 0;
}
.fn-ref-titulo::after {
  content: '';
  flex: 1; height: 1px;
  background: rgba(15,30,76,.12);
}
.fn-ref-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .75rem;
}
.fn-ref-item {
  font-size: .8rem;
  color: #5a5a6e;
  line-height: 1.65;
  padding: .75rem 1rem .75rem 2.75rem;
  position: relative;
  background: #fff;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(15,30,76,.07);
  border-left: 3px solid rgba(34,205,231,.4);
}
.fn-ref-item sup {
  position: absolute;
  left: .85rem; top: .9rem;
  color: var(--teal);
  font-weight: 700;
  font-size: .72rem;
}


/* ══ RESPONSIVE ══════════════════════════ */

@media (max-width: 900px) {
  .fn-seccion         { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .fn-conclusion-trio { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .fn-hero            { align-items: flex-start; min-height: unset; }
  .fn-hero-inner      { padding: 6rem 0 3rem; }
  .fn-band            { padding: 3.5rem 0; }
  .fn-band-inner      { grid-template-columns: 1fr; gap: 2rem; }
  .fn-band--alt .fn-band-inner { grid-template-columns: 1fr; }
  .fn-band--alt .fn-icon-wrap  { order: 0; }

  .fn-two-col         { grid-template-columns: 1fr; gap: 1rem; }
  .fn-principios-header { padding: 3.5rem 0; }

  .fn-conclusion-trio { grid-template-columns: 1fr; }
  .fn-conclusion-feat::before { font-size: 7rem; }

  .fn-ref-list        { grid-template-columns: 1fr; }
  .fn-referencias::before { display: none; }
}

@media (max-width: 600px) {
  .fn-seccion         { grid-template-columns: 1fr; gap: 1rem; }
  .fn-hero-inner      { padding: 6.5rem 0 2.5rem; }
  .fn-hero-meta       { flex-direction: column; align-items: flex-start; gap: .55rem; }
}

@media (max-width: 480px) {
  .fn-hero h1         { font-size: clamp(1.7rem, 7vw, 2.2rem); }
  .fn-hero-inner      { padding: 6rem 0 2rem; }
  .fn-hero-meta       { flex-direction: column; align-items: flex-start; gap: .5rem; }
  .fn-band            { padding: 2.5rem 0; }
  .fn-icon-wrap       { width: 80px; height: 80px; }
  .fn-icon-wrap svg   { width: 36px; height: 36px; }
  .fn-principios-header { padding: 2.5rem 0; }
  .fn-ph-inner h2     { font-size: .98rem; }
  .fn-conclusion-feat { padding: 1.5rem 1.25rem 1.25rem; }
  .fn-conclusion-feat::before { font-size: 5rem; }
}