/* ========================================
   🏢 BANNER DE INSTITUCIONES ASOCIADAS
   Ultra Profesional & Premium Design
   ======================================== */

.partners-section {
    position: relative;
    padding: 100px 0;
    background: linear-gradient(180deg, 
        rgba(15, 15, 30, 0.95) 0%, 
        rgba(30, 30, 50, 0.98) 50%, 
        rgba(15, 15, 30, 0.95) 100%
    );
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

/* Partículas de fondo decorativas */
.partners-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(102, 126, 234, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 191, 165, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* Contenedor principal */
.partners-container {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Título de la sección */
.partners-header {
    text-align: center;
    margin-bottom: 60px;
}

.partners-eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #00BFA5;
    margin-bottom: 20px;
    padding: 8px 24px;
    background: rgba(0, 191, 165, 0.1);
    border: 1px solid rgba(0, 191, 165, 0.3);
    border-radius: 50px;
    backdrop-filter: blur(10px);
}

.partners-title {
    font-family: 'Poppins', sans-serif;
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #00BFA5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    line-height: 1.2;
}

.partners-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Wrapper del carrusel */
.partners-carousel-wrapper {
    position: relative;
    overflow: hidden;
    padding: 40px 0;
    mask-image: linear-gradient(
        to right, 
        transparent 0%, 
        black 10%, 
        black 90%, 
        transparent 100%
    );
    -webkit-mask-image: linear-gradient(
        to right, 
        transparent 0%, 
        black 10%, 
        black 90%, 
        transparent 100%
    );
}

/* Track del carrusel con animación infinita */
.partners-carousel-track {
    display: flex;
    gap: 60px;
    animation: scroll-infinite 40s linear infinite;
    will-change: transform;
}

/* Hover pausa la animación */
.partners-carousel-track:hover {
    animation-play-state: paused;
}

@keyframes scroll-infinite {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Tarjeta de logo individual */
.partner-card {
    flex-shrink: 0;
    width: 280px;
    height: 180px;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

/* Efecto de brillo en hover */
.partner-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle,
        rgba(102, 126, 234, 0.1) 0%,
        transparent 70%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
}

.partner-card:hover::before {
    opacity: 1;
}

/* Hover effects */
.partner-card:hover {
    transform: translateY(-10px) scale(1.05);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 
        0 20px 60px rgba(102, 126, 234, 0.3),
        0 0 0 1px rgba(102, 126, 234, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Logo de la institución */
.partner-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: grayscale(100%) brightness(1.2);
    opacity: 0.6;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.partner-card:hover .partner-logo {
    filter: grayscale(0%) brightness(1);
    opacity: 1;
    transform: scale(1.1);
}

/* Badge "Premium Partner" (opcional) */
.partner-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: #000;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 4px 10px;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.partner-card:hover .partner-badge {
    opacity: 1;
    transform: translateY(0);
}

/* Contador de instituciones */
.partners-count {
    text-align: center;
    margin-top: 60px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 500;
}

.partners-count-number {
    display: inline-block;
    color: #00BFA5;
    font-weight: 700;
    font-size: 28px;
    margin: 0 8px;
    background: linear-gradient(135deg, #667eea, #00BFA5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ========================================
   📱 RESPONSIVE DESIGN
   ======================================== */

/* Tablets grandes y laptops pequeños */
@media (max-width: 1200px) {
    .partners-section {
        padding: 80px 0;
    }

    .partners-title {
        font-size: 42px;
    }

    .partner-card {
        width: 260px;
        height: 170px;
        padding: 28px;
    }

    .partners-carousel-track {
        gap: 50px;
    }
}

/* Tablets */
@media (max-width: 1024px) {
    .partners-section {
        padding: 70px 0;
    }

    .partners-title {
        font-size: 38px;
    }

    .partners-subtitle {
        font-size: 16px;
    }

    .partner-card {
        width: 240px;
        height: 160px;
        padding: 25px;
    }

    .partners-carousel-track {
        gap: 40px;
        animation-duration: 35s;
    }
}

/* Tablets pequeños */
@media (max-width: 900px) {
    .partners-eyebrow {
        font-size: 12px;
        padding: 6px 20px;
    }

    .partners-title {
        font-size: 34px;
    }

    .partner-card {
        width: 220px;
        height: 150px;
        padding: 22px;
    }
}

/* Móviles grandes */
@media (max-width: 768px) {
    .partners-section {
        padding: 60px 0;
    }

    .partners-container {
        padding: 0 20px;
    }

    .partners-eyebrow {
        font-size: 11px;
        padding: 6px 18px;
        letter-spacing: 1.5px;
    }

    .partners-title {
        font-size: 32px;
        line-height: 1.3;
    }

    .partners-subtitle {
        font-size: 15px;
        padding: 0 10px;
    }

    .partners-header {
        margin-bottom: 40px;
    }

    .partner-card {
        width: 200px;
        height: 140px;
        padding: 20px;
        border-radius: 16px;
    }

    .partners-carousel-track {
        gap: 30px;
        animation-duration: 30s;
    }

    .partners-count {
        margin-top: 40px;
        font-size: 14px;
    }

    .partners-count-number {
        font-size: 24px;
    }
}

/* Móviles medianos */
@media (max-width: 600px) {
    .partners-section {
        padding: 50px 0;
    }

    .partners-container {
        padding: 0 16px;
    }

    .partners-title {
        font-size: 28px;
    }

    .partners-subtitle {
        font-size: 14px;
        line-height: 1.5;
    }

    .partner-card {
        width: 180px;
        height: 130px;
        padding: 18px;
        border-radius: 14px;
    }

    .partners-carousel-track {
        gap: 25px;
        animation-duration: 28s;
    }

    .partner-badge {
        font-size: 9px;
        padding: 3px 8px;
    }

    .partners-count {
        margin-top: 35px;
        font-size: 13px;
        padding: 0 10px;
    }

    .partners-count-number {
        font-size: 22px;
    }
}

/* Móviles pequeños */
@media (max-width: 480px) {
    .partners-section {
        padding: 40px 0;
    }

    .partners-container {
        padding: 0 12px;
    }

    .partners-eyebrow {
        font-size: 10px;
        padding: 5px 14px;
        letter-spacing: 1px;
    }

    .partners-title {
        font-size: 24px;
        margin-bottom: 15px;
    }

    .partners-subtitle {
        font-size: 13px;
        line-height: 1.6;
    }

    .partners-header {
        margin-bottom: 35px;
    }

    .partner-card {
        width: 160px;
        height: 120px;
        padding: 15px;
        border-radius: 12px;
    }

    .partners-carousel-track {
        gap: 20px;
        animation-duration: 25s;
    }

    .partner-badge {
        font-size: 8px;
        padding: 3px 7px;
        top: 8px;
        right: 8px;
    }

    .partners-count {
        margin-top: 30px;
        font-size: 12px;
    }

    .partners-count-number {
        font-size: 20px;
        margin: 0 6px;
    }

    /* En móviles pequeños, mostrar logos con más color para mejor visibilidad */
    .partner-logo {
        filter: grayscale(50%) brightness(1.1);
        opacity: 0.8;
    }
}

/* Móviles muy pequeños (iPhone SE, Galaxy Fold cerrado) */
@media (max-width: 360px) {
    .partners-section {
        padding: 35px 0;
    }

    .partners-container {
        padding: 0 10px;
    }

    .partners-eyebrow {
        font-size: 9px;
        padding: 4px 12px;
    }

    .partners-title {
        font-size: 22px;
        margin-bottom: 12px;
    }

    .partners-subtitle {
        font-size: 12px;
        line-height: 1.5;
    }

    .partners-header {
        margin-bottom: 30px;
    }

    .partner-card {
        width: 140px;
        height: 110px;
        padding: 12px;
        border-radius: 10px;
    }

    .partners-carousel-track {
        gap: 18px;
        animation-duration: 22s;
    }

    .partner-badge {
        font-size: 7px;
        padding: 2px 6px;
        top: 6px;
        right: 6px;
    }

    .partners-count {
        margin-top: 25px;
        font-size: 11px;
    }

    .partners-count-number {
        font-size: 18px;
        margin: 0 4px;
    }
}

/* Orientación horizontal en móviles */
@media (max-height: 500px) and (orientation: landscape) {
    .partners-section {
        padding: 40px 0;
    }

    .partners-header {
        margin-bottom: 30px;
    }

    .partners-title {
        font-size: 26px;
        margin-bottom: 10px;
    }

    .partners-subtitle {
        font-size: 13px;
    }

    .partner-card {
        width: 180px;
        height: 120px;
    }

    .partners-carousel-wrapper {
        padding: 30px 0;
    }

    .partners-count {
        margin-top: 30px;
    }
}

/* ========================================
   🎨 VARIANTES DE ESTILO (Opcional)
   ======================================== */

/* Variante con fondo oscuro sólido */
.partners-section.dark-solid {
    background: #0F0F1E;
    border-top: 2px solid rgba(102, 126, 234, 0.3);
    border-bottom: 2px solid rgba(102, 126, 234, 0.3);
}

/* Variante con degradado vibrante */
.partners-section.vibrant {
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.1) 0%, 
        rgba(0, 191, 165, 0.1) 100%
    );
}

/* Animación de entrada al scroll */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.partners-section.animate-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* ========================================
   ⚡ OPTIMIZACIONES DE RENDIMIENTO
   ======================================== */

/* Hardware acceleration */
.partner-card,
.partner-logo,
.partners-carousel-track {
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Preload hint para imágenes */
.partner-logo {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}