/* ==========================================================================
   PÁGINA NOSOTROS (v2) - IESTP Carlos Salazar Romero
   [FIX-20] Archivo autocontenido: incluye estilos base de secciones para
            que los encabezados queden centrados y con píldora, sin
            depender de contabilidad.css.
   Secciones: pestañas, bienvenida, misión/visión, valores, estructura, historia.
   Convención: prefijo csr- | Metodología BEM
   NOTA: los media queries de este componente están en responsive.css
   ========================================================================== */

:root {
    --csr-radius-xl: 20px;
    --csr-radius-2xl: 24px;
}

/* ==========================================================================
   0. ESTILOS BASE DE SECCIONES (autocontenidos)
   ========================================================================== */

/* Bloque de sección con alternancia de fondo */
.csr-section {
    padding: 5rem 0;
    background-color: var(--csr-color-white);
}

.csr-section--light {
    background-color: var(--csr-color-base);
}

/* Encabezado centrado de cada sección */
.csr-section__header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2.8rem;
}

/* Etiqueta tipo píldora */
.csr-section__tag {
    display: inline-block;
    background-color: var(--csr-color-primary-dark);
    color: #ffffff; /* var(--csr-color-primary-light);*/
    padding: 0.4rem 1.2rem;
    border-radius: var(--csr-radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

/* Título principal de sección */
.csr-section__title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--csr-color-primary-dark);
    font-weight: 700;
    margin-bottom: 0.8rem;
}

/* Párrafo introductorio */
.csr-section__intro {
    font-size: 1.05rem;
    color: var(--csr-color-gray);
    line-height: 1.7;
}

/* ==========================================================================
   1. PESTAÑAS DE SECCIONES (barra fija con scroll-spy)
   ========================================================================== */
.csr-about-tabs-wrap {
    position: sticky;
    top: 68px;
    z-index: 900;
    background-color: var(--csr-color-white);
    border-bottom: 1px solid var(--csr-color-lighter);
    box-shadow: var(--csr-shadow-sm);
}

.csr-about-tabs {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 0.7rem 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.csr-about-tabs::-webkit-scrollbar { display: none; }

.csr-about-tab {
    flex: 0 0 auto;
    padding: 0.5rem 1.2rem;
    border-radius: var(--csr-radius-full);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--csr-color-dark-soft);
    background-color: var(--csr-color-base);
    transition: all 0.3s ease;
    white-space: nowrap;
}

.csr-about-tab:hover {
    color: var(--csr-color-primary);
    background-color: var(--csr-color-primary-light);
}

.csr-about-tab--active {
    background: linear-gradient(135deg, var(--csr-color-primary), var(--csr-color-primary-dark));
    color: var(--csr-color-white);
    box-shadow: 0 4px 15px rgba(0, 88, 171, 0.3);
}

/* ==========================================================================
   2. BIENVENIDA DEL DIRECTOR
   ========================================================================== */
.csr-director {
    padding: 4.5rem 0;
    background-color: var(--csr-color-white);
}

.csr-director__grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3rem;
    align-items: center;
}

.csr-director__title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    margin-bottom: 1.3rem;
}

/* Cita con borde amarillo institucional */
.csr-director__quote {
    border-left: 5px solid var(--csr-color-tertiary);
    padding-left: 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    color: var(--csr-color-dark-soft);
    font-size: 0.95rem;
    line-height: 1.75;
}

/* Firma destacada */
.csr-director__sign {
    margin-top: 1.5rem;
    display: inline-block;
    background-color: var(--csr-color-base);
    border-left: 4px solid var(--csr-color-secondary);
    border-radius: var(--csr-radius-xl);
    padding: 1rem 1.5rem;
}

.csr-director__sign-line {
    font-size: 0.9rem;
    color: var(--csr-color-gray);
    margin-bottom: 0.3rem;
}

.csr-director__name {
    font-family: var(--csr-font-heading);
    font-weight: 700;
    color: var(--csr-color-primary-dark);
    font-size: 1.05rem;
}

.csr-director__role {
    color: var(--csr-color-secondary);
    font-weight: 600;
    font-size: 0.85rem;
}

/* Foto con marco decorado */
.csr-director__photo {
    position: relative;
    padding: 0 14px 14px 0;
}

.csr-director__photo::before {
    content: '';
    position: absolute;
    inset: 18px -14px -14px 18px;
    border: 3px solid var(--csr-color-tertiary);
    border-radius: var(--csr-radius-2xl);
}

.csr-director__photo img {
    position: relative;
    width: 100%;
    display: block;
    border-radius: var(--csr-radius-2xl);
    box-shadow: var(--csr-shadow-xl);
    object-fit: cover;
}

.csr-director__photo-badge {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--csr-color-secondary), var(--csr-color-secondary-dark));
    color: var(--csr-color-white);
    padding: 0.5rem 1.4rem;
    border-radius: var(--csr-radius-full);
    font-size: 0.82rem;
    font-weight: 700;
    box-shadow: var(--csr-shadow-lg);
    white-space: nowrap;
}

.csr-director__photo-badge i {
    color: var(--csr-color-tertiary);
    margin-right: 0.4rem;
}

/* ==========================================================================
   3. MISIÓN Y VISIÓN
   ========================================================================== */
.csr-mv__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.8rem;
}

.csr-mv-card {
    position: relative;
    overflow: hidden;
    background-color: var(--csr-color-white);
    border-radius: var(--csr-radius-2xl);
    padding: 2.2rem;
    box-shadow: var(--csr-shadow-sm);
    border-top: 5px solid var(--csr-color-primary);
    transition: all 0.35s ease;
}

.csr-mv-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--csr-shadow-xl);
}

.csr-mv-card--vision { border-top-color: var(--csr-color-secondary); }

.csr-mv-card__icon {
    width: 64px;
    height: 64px;
    border-radius: var(--csr-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--csr-color-white);
    margin-bottom: 1.1rem;
}

.csr-mv-card__icon--blue { background: linear-gradient(135deg, var(--csr-color-primary), var(--csr-color-primary-dark)); }
.csr-mv-card__icon--red  { background: linear-gradient(135deg, var(--csr-color-secondary), var(--csr-color-secondary-dark)); }

.csr-mv-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.7rem;
}

.csr-mv-card p {
    color: var(--csr-color-gray);
    line-height: 1.7;
}

/* Marca de agua decorativa */
.csr-mv-card__watermark {
    position: absolute;
    right: -1.2rem;
    bottom: -1.8rem;
    font-size: 7.5rem;
    opacity: 0.06;
    color: var(--csr-color-primary-dark);
}

/* ==========================================================================
   4. VALORES
   ========================================================================== */
.csr-values__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.4rem;
}

.csr-value-card {
    background-color: var(--csr-color-white);
    border-radius: var(--csr-radius-xl);
    padding: 1.8rem 1.2rem;
    text-align: center;
    box-shadow: var(--csr-shadow-sm);
    border-bottom: 4px solid var(--csr-color-tertiary);
    transition: all 0.3s ease;
}

.csr-value-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--csr-shadow-lg);
    border-bottom-color: var(--csr-color-secondary);
}

.csr-value-card__icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 0.9rem;
    border-radius: var(--csr-radius-full);
    background-color: var(--csr-color-primary-light);
    color: var(--csr-color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    transition: all 0.3s ease;
}

.csr-value-card:hover .csr-value-card__icon {
    background: linear-gradient(135deg, var(--csr-color-primary), var(--csr-color-primary-dark));
    color: var(--csr-color-white);
}

.csr-value-card h3 {
    font-size: 0.98rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.csr-value-card p {
    color: var(--csr-color-gray);
    font-size: 0.85rem;
    line-height: 1.6;
}

/* ==========================================================================
   5. ESTRUCTURA EDUCATIVA
   ========================================================================== */
.csr-structure__list {
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
}

.csr-structure__item {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.8rem;
    align-items: center;
    background-color: var(--csr-color-white);
    border-radius: var(--csr-radius-2xl);
    padding: 1.8rem;
    box-shadow: var(--csr-shadow-sm);
    border-left: 5px solid var(--csr-color-primary);
    transition: all 0.3s ease;
}

.csr-structure__item:hover {
    transform: translateY(-4px);
    box-shadow: var(--csr-shadow-lg);
    border-left-color: var(--csr-color-secondary);
}

.csr-structure__side {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.csr-structure__icon {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    border-radius: var(--csr-radius-lg);
    background: linear-gradient(135deg, var(--csr-color-primary), var(--csr-color-primary-dark));
    color: var(--csr-color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--csr-shadow-md);
}

.csr-structure__side h3 {
    font-size: 1.08rem;
    line-height: 1.35;
}

.csr-structure__item p {
    color: var(--csr-color-gray);
    font-size: 0.93rem;
    line-height: 1.7;
}

.csr-structure__item p strong { color: var(--csr-color-primary-dark); }

/* ==========================================================================
   6. RESEÑA HISTÓRICA (línea de tiempo)
   ========================================================================== */
.csr-history__grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
    align-items: start;
}

.csr-timeline {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.7rem;
    padding-left: 1.6rem;
    border-left: 3px solid var(--csr-color-primary-light);
}

.csr-timeline__item { position: relative; }

/* Punto del hito */
.csr-timeline__item::before {
    content: '';
    position: absolute;
    left: -2.28rem;
    top: 0.3rem;
    width: 14px;
    height: 14px;
    border-radius: var(--csr-radius-full);
    background-color: var(--csr-color-secondary);
    border: 3px solid var(--csr-color-white);
    box-shadow: 0 0 0 3px var(--csr-color-primary-light);
}

.csr-timeline__year {
    display: inline-block;
    background-color: var(--csr-color-tertiary);
    color: var(--csr-color-dark);
    font-weight: 800;
    padding: 0.2rem 0.9rem;
    border-radius: var(--csr-radius-full);
    font-size: 0.8rem;
    margin-bottom: 0.4rem;
}

.csr-timeline__title {
    font-size: 1.02rem;
    margin-bottom: 0.3rem;
}

.csr-timeline__text {
    color: var(--csr-color-gray);
    font-size: 0.9rem;
    line-height: 1.65;
}

/* Foto con pie */
.csr-history__photo {
    position: sticky;
    top: 130px;
    margin: 0;
}

.csr-history__photo img {
    width: 100%;
    display: block;
    border-radius: var(--csr-radius-2xl);
    box-shadow: var(--csr-shadow-xl);
}

.csr-history__photo figcaption {
    margin-top: 0.9rem;
    text-align: center;
    color: var(--csr-color-gray);
    font-size: 0.88rem;
    font-style: italic;
}