/* ==========================================================================
   UNIDAD EDUCATIVA ANNA ELEANOR ROOSEVELT
   Opción 2: Diseño Full-Screen con Degradados Modernos
   Inspirado en tendencias contemporáneas y colegios modernos (EMDI School)
   - 100% Ancho de Pantalla (Full-bleed)
   - Los 4 colores del logo (Azul, Amarillo, Rojo, Verde)
   - Degradados modernos y fluidos
   - Tipografía: Montserrat (títulos) y Open Sans (textos)
   - Sin bordes ni sombras pesadas, estética limpia y vanguardista
   ========================================================================== */

:root {
  /* Paleta cromática oficial en gama pastel moderna */
  --blue-base: #4374b8;
  --blue-dark: #2a4d80;
  --blue-light: #5d8ad1;
  --grad-blue: linear-gradient(135deg, #2a4d80 0%, #4374b8 50%, #5d8ad1 100%);

  --yellow-base: #e8b938;
  --yellow-dark: #c49419;
  --yellow-light: #f5cb58;
  --grad-yellow: linear-gradient(135deg, #c49419 0%, #e8b938 50%, #f5cb58 100%);

  --red-base: #d95f57;
  --red-dark: #b53f37;
  --red-light: #e87b74;
  --grad-red: linear-gradient(135deg, #b53f37 0%, #d95f57 50%, #e87b74 100%);

  --green-base: #42a866;
  --green-dark: #297a45;
  --green-light: #5ec482;
  --grad-green: linear-gradient(135deg, #226b3b 0%, #42a866 60%, #5ec482 100%);

  /* Degradado integrado de los 4 colores */
  --grad-4colors: linear-gradient(90deg, #4374b8 0%, #e8b938 33%, #d95f57 66%, #42a866 100%);

  /* Superficies */
  --bg-page: #f8fafc;
  --color-text-main: #334155;
  --color-text-muted: #64748b;
  --color-text-title: #0f172a;

  /* Tipografías */
  --font-title: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* --------------------------------------------------------------------------
   REINICIO Y BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important;
  border: none !important;
  box-shadow: none !important;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-page);
  color: var(--color-text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, 
.hero-title, 
.section-headline, 
.card-title,
.closing-text {
  font-family: var(--font-title);
}

img, picture {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   1. CABECERA FLOTANTE INSTITUCIONAL
   -------------------------------------------------------------------------- */
.top-header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 24px 6%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-box {
  display: flex;
  align-items: center;
  background: transparent;
  padding: 0;
}

.brand-logo-img {
  width: 100px;
  height: 100px;
  object-fit: contain;
  filter: drop-shadow(0 4px 14px rgba(0, 0, 0, 0.4));
}

/* --------------------------------------------------------------------------
   2. HERO BANNER FULL-SCREEN CON DEGRADADO MODERNO
   -------------------------------------------------------------------------- */
.hero-fullscreen {
  position: relative;
  width: 100%;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: 
    linear-gradient(180deg, rgba(15, 23, 42, 0.45) 0%, rgba(15, 23, 42, 0.65) 100%),
    url('imagen.png') center/cover no-repeat;
  color: #ffffff;
  padding: 120px 6% 80px;
}

.hero-inner-content {
  max-width: 1100px;
  z-index: 2;
}

.hero-title {
  font-size: clamp(2rem, 5.5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: #ffffff;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  margin-bottom: 24px;
}

.hero-gradient-accent-line {
  width: 88%;
  max-width: 950px;
  height: 5px;
  margin: 18px auto 0;
  background: var(--grad-4colors);
}

/* --------------------------------------------------------------------------
   3. BARRA DE 4 BLOQUES CROMÁTICOS FULL-WIDTH CON DEGRADADOS
   -------------------------------------------------------------------------- */
.four-blocks-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: 100%;
}

.gradient-block-tab {
  padding: 32px 20px;
  color: #ffffff;
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: transform 0.3s ease, filter 0.3s ease;
}

.gradient-block-tab:hover {
  filter: brightness(1.08);
}

.gradient-block-tab.tab-blue { background: var(--grad-blue); }
.gradient-block-tab.tab-yellow { background: var(--grad-yellow); color: #ffffff; }
.gradient-block-tab.tab-red { background: var(--grad-red); }
.gradient-block-tab.tab-green { background: var(--grad-green); }

.gradient-block-tab svg,
.gradient-block-tab i {
  font-size: 1.25rem;
}

/* --------------------------------------------------------------------------
   4. PRESENTACIÓN INSTITUCIONAL (EMDI STYLE: Full-width Green Gradient con Marca de Agua)
   -------------------------------------------------------------------------- */
.philosophy-fullscreen {
  position: relative;
  width: 100%;
  background: var(--grad-green);
  color: #ffffff;
  padding: 100px 10%;
  text-align: center;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.philosophy-content {
  position: relative;
  z-index: 2;
  max-width: 1100px;
}

.philosophy-text {
  font-size: clamp(1.2rem, 2.2vw, 1.85rem);
  line-height: 1.85;
  font-weight: 500;
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/* --------------------------------------------------------------------------
   5. SECCIÓN HOY POR HOY ROOSEVELT (Full-width con cuadrícula 3x2)
   -------------------------------------------------------------------------- */
.strengths-section {
  width: 100%;
  padding: 100px 8%;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.section-headline-box {
  text-align: center;
  margin-bottom: 60px;
}

.section-headline {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--color-text-title);
  letter-spacing: -0.02em;
}

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  max-width: 1400px;
  margin: 0 auto;
}

.strength-item-card {
  background: #ffffff;
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.strength-item-card:hover {
  transform: translateY(-4px);
}

/* Franja superior con degradado en cada tarjeta */
.strength-item-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
}

.strength-item-card.card-blue::before { background: var(--grad-blue); }
.strength-item-card.card-yellow::before { background: var(--grad-yellow); }
.strength-item-card.card-red::before { background: var(--grad-red); }
.strength-item-card.card-green::before { background: var(--grad-green); }

.strength-icon-box {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 22px;
  margin-bottom: 24px;
}

.strength-icon-box.bg-blue { background: var(--grad-blue); }
.strength-icon-box.bg-yellow { background: var(--grad-yellow); color: #ffffff; }
.strength-icon-box.bg-red { background: var(--grad-red); }
.strength-icon-box.bg-green { background: var(--grad-green); }

.strength-text {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text-main);
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   6. BANDA DE LA FRASE DESTACADA (Full-width con degradado aurora suave)
   -------------------------------------------------------------------------- */
.quote-highlight-fullwidth {
  width: 100%;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: #ffffff;
  padding: 80px 8%;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.quote-highlight-fullwidth::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(67, 116, 184, 0.3) 0%, rgba(66, 168, 102, 0.2) 50%, transparent 80%);
  pointer-events: none;
}

.quote-phrase-text {
  position: relative;
  z-index: 2;
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 3.8vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: #ffffff;
  max-width: 1100px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   7. SECCIÓN MISIÓN Y VISIÓN (2 Bloques Full-Screen Side-by-Side con Degradados)
   -------------------------------------------------------------------------- */
.mission-vision-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 100%;
}

.mv-half-block {
  padding: 90px 8%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: #ffffff;
  position: relative;
}

.mv-half-block.block-mission {
  background: var(--grad-blue);
}

.mv-half-block.block-vision {
  background: var(--grad-red);
}

.mv-badge-title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 3.2vw, 2.8rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  color: #ffffff;
}

.mv-statement-text {
  font-size: clamp(1.05rem, 1.35vw, 1.25rem);
  line-height: 1.85;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.95);
  max-width: 650px;
}

/* --------------------------------------------------------------------------
   8. CIERRE "PIENSA, SUEÑA Y ACTÚA" (Full-Screen Width con Fondo Gris Degradado)
   -------------------------------------------------------------------------- */
.closing-fullwidth-section {
  width: 100%;
  background: linear-gradient(135deg, #475569 0%, #334155 100%);
  color: #ffffff;
  padding: 85px 6%;
  text-align: center;
  position: relative;
}

.closing-phrase-main {
  font-family: var(--font-title);
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #ffffff;
  text-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

/* --------------------------------------------------------------------------
   9. FOOTER MODERNO FULL-WIDTH
   -------------------------------------------------------------------------- */
.modern-footer {
  width: 100%;
  background: #0f172a;
  color: #94a3b8;
  position: relative;
}

.footer-top-colored-line {
  width: 100%;
  height: 6px;
  background: var(--grad-4colors);
}

.footer-main-row {
  padding: 40px 6%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 30px;
}

.footer-brand-side {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-logo-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.footer-institution-name {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1rem;
  color: #ffffff;
}

.footer-center-credit {
  text-align: center;
  white-space: nowrap;
}

.footer-center-credit a {
  color: #cbd5e1;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}

.footer-center-credit a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-motto-side {
  text-align: right;
  font-style: italic;
  font-size: 0.95rem;
  color: #94a3b8;
}

/* --------------------------------------------------------------------------
   RESPONSIVE DESIGN (TABLET Y MÓVIL)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .four-blocks-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .strengths-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .mission-vision-container {
    grid-template-columns: 1fr;
  }

  .mv-half-block {
    padding: 70px 8%;
  }

  .footer-main-row {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 20px;
  }

  .footer-brand-side, 
  .footer-center-credit, 
  .footer-motto-side {
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .top-header {
    padding: 16px 4%;
  }

  .brand-box {
    padding: 10px 16px;
    width: 100%;
    justify-content: center;
  }

  .header-accent-strip {
    display: none;
  }

  .hero-fullscreen {
    min-height: 80vh;
    padding: 130px 5% 60px;
  }

  .four-blocks-strip {
    grid-template-columns: 1fr;
  }

  .philosophy-fullscreen {
    padding: 70px 6%;
  }

  .philosophy-watermark {
    width: 320px;
    height: 320px;
  }

  .strengths-section {
    padding: 70px 5%;
  }

  .strengths-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .quote-highlight-fullwidth {
    padding: 60px 6%;
  }

  .mv-half-block {
    padding: 60px 6%;
  }

  .closing-fullwidth-section {
    padding: 60px 5%;
  }

  .footer-main-row {
    padding: 30px 5%;
  }
}