/* ============================================
   PAGE HEADER COMPONENT
   Componente reutilizable para headers de página
   Metodología: BEM (Block Element Modifier)
   ============================================ */

/* Block: page-header */
.page-header {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 2rem;
}

/* Element: page-header__container */
.page-header__container {
    position: relative;
    z-index: 2;
    padding: 2rem 0;
}

/* Element: page-header__content */
.page-header__content {
    text-align: center;
}

/* Element: page-header__title */
.page-header__title {
    font-family: 'Gotham', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Element: page-header__subtitle */
.page-header__subtitle {
    font-family: 'Gotham', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 1.125rem;
    font-weight: 400;
    line-height: 1.4;
    margin-bottom: 0;
    color: #ffffff;
    opacity: 0.9;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Element: page-header__background */
.page-header__background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

/* Element: page-header__waves */
.page-header__waves {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    opacity: 0.2;
    transform: rotate(180deg);
}

/* Modifier: page-header--primary */
.page-header--primary {
    background: linear-gradient(135deg, #00ffff 0%, #00e5e6 100%);
}

/* Modifier: page-header--large */
.page-header--large .page-header__container {
    padding: 3rem 0;
}

.page-header--large .page-header__title {
    font-size: 3rem;
}

.page-header--large .page-header__subtitle {
    font-size: 1.25rem;
}

/* Modifier: page-header--compact */
.page-header--compact .page-header__container {
    padding: 1.5rem 0;
}

.page-header--compact .page-header__title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.page-header--compact .page-header__subtitle {
    font-size: 1rem;
}

/* ============================================
   RESPONSIVE DESIGN
   Mobile-first approach
   ============================================ */

/* Tablet */
@media (min-width: 768px) {
    .page-header__title {
        font-size: 3rem;
    }

    .page-header__subtitle {
        font-size: 1.25rem;
    }

    .page-header--large .page-header__title {
        font-size: 3.5rem;
    }

    .page-header--large .page-header__subtitle {
        font-size: 1.375rem;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .page-header__container {
        padding: 2.5rem 0;
    }

    .page-header--large .page-header__container {
        padding: 4rem 0;
    }

    .page-header--compact .page-header__container {
        padding: 2rem 0;
    }
}

/* Large Desktop */
@media (min-width: 1200px) {
    .page-header__title {
        font-size: 3.25rem;
    }

    .page-header--large .page-header__title {
        font-size: 4rem;
    }
}

/* ============================================
   ACCESSIBILITY & PERFORMANCE
   ============================================ */

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .page-header__title,
    .page-header__subtitle {
        transition: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .page-header__title,
    .page-header__subtitle {
        text-shadow: none;
        font-weight: 900;
    }
}

/* Print styles */
@media print {
    .page-header {
        background: none !important;
        color: #000 !important;
        border: 1px solid #000;
    }

    .page-header__title,
    .page-header__subtitle {
        color: #000 !important;
        text-shadow: none !important;
    }

    .page-header__background,
    .page-header__waves {
        display: none !important;
    }
}