/* ==============================================================================
   BEYOND STRONG FIT - DESIGN SYSTEM & MASTER STYLES
   Aesthetic: High-Intensity Athletic Luxury / Dark Powerhouse / Brutalist Precision
   ============================================================================== */

:root {
    /* Paleta de Color Principal */
    --bsf-bg: #07080a;
    --bsf-bg-panel: #0d0f14;
    --bsf-bg-card: rgba(18, 21, 28, 0.85);
    
    /* Acentos de Fuerza (Energía, Fuego & Acero) */
    --bsf-accent: #ff3b00;
    --bsf-accent-hover: #ff551c;
    --bsf-accent-glow: rgba(255, 59, 0, 0.45);
    --bsf-accent-subtle: rgba(255, 59, 0, 0.15);
    --bsf-gold: #ffb703;

    /* Escala de Blancos y Grises */
    --bsf-text-white: #ffffff;
    --bsf-text-light: #e5e7eb;
    --bsf-text-muted: #9ca3af;
    --bsf-text-dim: #6b7280;
    
    /* Bordes y Divisiones */
    --bsf-border-color: rgba(255, 255, 255, 0.08);
    --bsf-border-accent: rgba(255, 59, 0, 0.35);

    /* Tipografías */
    --bsf-font-heading: 'Bebas Neue', sans-serif;
    --bsf-font-subheading: 'Teko', sans-serif;
    --bsf-font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Curvas y Transiciones */
    --bsf-ease-power: cubic-bezier(0.16, 1, 0.3, 1);
    --bsf-transition-fast: 0.2s ease;
    --bsf-transition-normal: 0.35s var(--bsf-ease-power);
    --bsf-transition-slow: 0.6s var(--bsf-ease-power);
}

/* Reset y Normalización */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    min-height: 100%;
    overflow-x: hidden;
    background-color: var(--bsf-bg);
    color: var(--bsf-text-light);
    font-family: var(--bsf-font-body);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Prevenir scroll no deseado en vista landing de una sola pantalla */
body.bsf-body {
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    position: relative;
}

body.bsf-scrollable {
    height: auto !important;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-y: auto !important;
}

body.menu-open {
    overflow: hidden;
}

/* Enlaces sin formato base */
a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

/* ==============================================================================
   NAVBAR FLOTANTE
   ============================================================================== */
.bsf-navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.25rem 2.5rem;
    padding-top: calc(1.25rem + env(safe-area-inset-top, 0px));
    transition: background-color var(--bsf-transition-normal), backdrop-filter var(--bsf-transition-normal), transform var(--bsf-transition-normal);
}

.bsf-navbar-container {
    max-width: 1700px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.bsf-brand {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 101;
    text-decoration: none;
    transition: transform var(--bsf-transition-fast), filter var(--bsf-transition-fast);
}

.bsf-brand:hover {
    transform: scale(1.03);
    filter: drop-shadow(0 0 12px var(--bsf-accent-glow));
}

.bsf-logo-img {
    height: 48px;
    max-height: 52px;
    width: auto;
    max-width: 240px;
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.6));
}

/* Acciones en Navbar */
.bsf-nav-actions {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.bsf-btn-header-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--bsf-border-color);
    padding: 0.5rem 1.1rem;
    border-radius: 4px;
    font-family: var(--bsf-font-subheading);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--bsf-text-white);
    backdrop-filter: blur(10px);
    transition: all var(--bsf-transition-fast);
}

.bsf-btn-header-cta:hover {
    background: var(--bsf-accent);
    border-color: var(--bsf-accent);
    color: #fff;
    box-shadow: 0 0 18px var(--bsf-accent-glow);
    transform: translateY(-2px);
}

/* Botón de Menú "Power Trigger" */
.bsf-menu-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(13, 15, 20, 0.85);
    border: 1px solid var(--bsf-border-accent);
    padding: 0.5rem 1.05rem;
    border-radius: 4px;
    backdrop-filter: blur(12px);
    transition: all var(--bsf-transition-fast);
    position: relative;
    overflow: hidden;
}

.bsf-menu-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 59, 0, 0.2), transparent);
    transition: left 0.5s ease;
}

.bsf-menu-toggle:hover::before {
    left: 100%;
}

.bsf-menu-toggle:hover {
    background: rgba(20, 23, 30, 0.95);
    border-color: var(--bsf-accent);
    box-shadow: 0 0 15px var(--bsf-accent-glow);
}

.bsf-toggle-label {
    font-family: var(--bsf-font-subheading);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--bsf-text-white);
}

.bsf-toggle-icon {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    gap: 4px;
    width: 20px;
}

.bsf-toggle-icon .bar {
    display: block;
    height: 2.5px;
    background-color: var(--bsf-accent);
    border-radius: 2px;
    transition: width var(--bsf-transition-fast), background-color var(--bsf-transition-fast);
}

.bsf-toggle-icon .bar-1 { width: 20px; }
.bsf-toggle-icon .bar-2 { width: 14px; }
.bsf-toggle-icon .bar-3 { width: 18px; }

.bsf-menu-toggle:hover .bar {
    background-color: #fff;
}
.bsf-menu-toggle:hover .bar-2 {
    width: 20px;
}

/* ==============================================================================
   MENÚ DESPLEGABLE "POWER DRAWER"
   ============================================================================== */
.bsf-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    visibility: hidden;
    pointer-events: none;
    transition: visibility 0.4s;
}

.bsf-drawer.is-active {
    visibility: visible;
    pointer-events: auto;
}

.bsf-drawer-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 6, 8, 0.85);
    backdrop-filter: blur(12px);
    opacity: 0;
    transition: opacity var(--bsf-transition-normal);
}

.bsf-drawer.is-active .bsf-drawer-backdrop {
    opacity: 1;
}

.bsf-drawer-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 480px;
    height: 100%;
    background: var(--bsf-bg-panel);
    border-left: 1px solid var(--bsf-border-accent);
    box-shadow: -20px 0 50px rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2.2rem 2.5rem;
    padding-top: calc(2.2rem + env(safe-area-inset-top, 0px));
    padding-bottom: calc(2.2rem + env(safe-area-inset-bottom, 0px));
    transform: translateX(100%);
    transition: transform var(--bsf-transition-normal);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--bsf-accent) transparent;
}

.bsf-drawer.is-active .bsf-drawer-panel {
    transform: translateX(0);
}

/* Cabecera del Drawer */
.bsf-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--bsf-border-color);
}

.bsf-drawer-brand {
    display: flex;
    flex-direction: column;
}

.bsf-drawer-logo {
    height: 38px;
    max-height: 42px;
    width: auto;
    max-width: 180px;
    object-fit: contain;
    display: block;
    margin-bottom: 0.25rem;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.5));
}

.bsf-drawer-tagline {
    font-family: var(--bsf-font-subheading);
    font-size: 0.85rem;
    letter-spacing: 2px;
    color: var(--bsf-accent);
}

.bsf-drawer-close {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.85rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--bsf-border-color);
    border-radius: 4px;
    color: var(--bsf-text-white);
    font-family: var(--bsf-font-subheading);
    font-size: 1.05rem;
    letter-spacing: 1.5px;
    transition: all var(--bsf-transition-fast);
}

.bsf-drawer-close:hover {
    background: var(--bsf-accent);
    border-color: var(--bsf-accent);
    color: #fff;
    box-shadow: 0 0 15px var(--bsf-accent-glow);
}

.bsf-close-icon {
    font-size: 1.3rem;
    line-height: 1;
}

/* Lista de Navegación */
.bsf-drawer-body {
    flex: 1;
    margin: 2rem 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
}

.bsf-nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.bsf-nav-link {
    display: flex;
    align-items: baseline;
    gap: 0.85rem;
    font-family: var(--bsf-font-heading);
    font-size: 2rem;
    letter-spacing: 1.5px;
    color: var(--bsf-text-light);
    position: relative;
    padding: 0.25rem 0;
    transition: all var(--bsf-transition-fast);
}

.bsf-nav-num {
    font-family: var(--bsf-font-subheading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--bsf-text-dim);
    transition: color var(--bsf-transition-fast);
}

.bsf-nav-text {
    flex: 1;
}

.bsf-nav-arrow {
    font-size: 1.4rem;
    color: var(--bsf-accent);
    opacity: 0;
    transform: translateX(-12px);
    transition: all var(--bsf-transition-fast);
}

.bsf-nav-link:hover,
.bsf-nav-item.active .bsf-nav-link {
    color: var(--bsf-text-white);
    transform: translateX(8px);
}

.bsf-nav-link:hover .bsf-nav-num,
.bsf-nav-item.active .bsf-nav-num {
    color: var(--bsf-accent);
}

.bsf-nav-link:hover .bsf-nav-arrow,
.bsf-nav-item.active .bsf-nav-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Área de Miembros en Drawer */
.bsf-drawer-auth-box {
    background: var(--bsf-bg-card);
    border: 1px solid var(--bsf-border-accent);
    border-radius: 6px;
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
}

.bsf-drawer-auth-box::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, var(--bsf-accent-glow) 0%, transparent 70%);
}

.bsf-auth-header {
    margin-bottom: 1rem;
}

.bsf-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: rgba(255, 59, 0, 0.1);
    border: 1px solid var(--bsf-accent-subtle);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-family: var(--bsf-font-subheading);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--bsf-accent);
    margin-bottom: 0.35rem;
}

.bsf-status-dot {
    width: 6px;
    height: 6px;
    background-color: var(--bsf-accent);
    border-radius: 50%;
    animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 59, 0, 0.6); }
    50% { opacity: 0.6; transform: scale(0.9); box-shadow: 0 0 0 6px rgba(255, 59, 0, 0); }
}

.bsf-auth-prompt {
    font-size: 0.85rem;
    color: var(--bsf-text-muted);
}

.bsf-auth-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.bsf-btn-auth {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 0.85rem;
    border-radius: 4px;
    font-family: var(--bsf-font-subheading);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    transition: all var(--bsf-transition-fast);
}

.bsf-btn-login {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--bsf-border-color);
    color: var(--bsf-text-white);
}

.bsf-btn-login:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    transform: translateY(-2px);
}

.bsf-btn-register {
    background: var(--bsf-accent);
    border: 1px solid var(--bsf-accent);
    color: #fff;
}

.bsf-btn-register:hover {
    background: var(--bsf-accent-hover);
    box-shadow: 0 0 16px var(--bsf-accent-glow);
    transform: translateY(-2px);
}

/* Pie del Menú Drawer */
.bsf-drawer-footer {
    padding-top: 1.25rem;
    border-top: 1px solid var(--bsf-border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.bsf-drawer-motto {
    font-family: var(--bsf-font-subheading);
    font-size: 0.95rem;
    letter-spacing: 2px;
    color: var(--bsf-text-dim);
}

.bsf-drawer-socials {
    display: flex;
    gap: 0.65rem;
}

.bsf-social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--bsf-border-color);
    font-family: var(--bsf-font-subheading);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--bsf-text-muted);
    transition: all var(--bsf-transition-fast);
}

.bsf-social-link:hover {
    background: var(--bsf-accent);
    border-color: var(--bsf-accent);
    color: #fff;
    transform: translateY(-2px);
}

/* ==============================================================================
   HERO VIEWPORT (PANTALLA COMPLETA 100VH - CONTENIDO EN LA PARTE INFERIOR)
   ============================================================================== */
.bsf-hero-section {
    position: relative;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    display: flex;
    align-items: flex-end; /* En la parte inferior para mostrar el ejercicio en el video */
    justify-content: center;
    overflow: hidden;
}

/* Video en Bucle de Fondo */
.bsf-video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.bsf-video-element {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%) scale(1.02);
    object-fit: cover;
    filter: contrast(1.12) brightness(0.9);
}

/* Degradado Cinematográfico:
   Más claro arriba y al centro para que el ejercicio del video sea claramente visible, 
   y oscurecido suavemente hacia la base para que el texto resalte. */
.bsf-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        0deg,
        rgba(7, 8, 10, 0.96) 0%,
        rgba(7, 8, 10, 0.82) 20%,
        rgba(7, 8, 10, 0.45) 42%,
        rgba(7, 8, 10, 0.12) 65%,
        rgba(7, 8, 10, 0.35) 100%
    );
    z-index: 2;
}

/* Malla sutil de scanlines para estética ruda / gym performance */
.bsf-scanlines-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 40%, rgba(5, 6, 8, 0.5) 100%);
    z-index: 3;
    pointer-events: none;
}

/* Contenido Principal: Centrado en la parte inferior */
.bsf-hero-content-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem 3.5rem 2rem;
    padding-bottom: calc(3.5rem + env(safe-area-inset-bottom, 0px));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    text-align: center;
}

.bsf-hero-content {
    max-width: 820px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: heroFadeIn 1s var(--bsf-ease-power) forwards;
}

@keyframes heroFadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Título de Gran Potencia - Separación Equilibrada */
.bsf-hero-title {
    font-family: var(--bsf-font-heading);
    font-size: clamp(2.8rem, 5.5vw, 4.8rem);
    line-height: 0.98;
    letter-spacing: 2px;
    color: var(--bsf-text-white);
    text-transform: uppercase;
    margin-bottom: 0.65rem; /* Separación ajustada */
    text-align: center;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.9);
}

.bsf-text-glow {
    color: var(--bsf-accent);
    text-shadow: 0 0 30px var(--bsf-accent-glow);
}

.bsf-text-outline {
    color: transparent;
    -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.88);
    transition: color var(--bsf-transition-fast), -webkit-text-stroke var(--bsf-transition-fast);
}

.bsf-hero-title:hover .bsf-text-outline {
    color: #fff;
    -webkit-text-stroke: 1.5px transparent;
}

/* Descripción - Separación Equilibrada hacia los botones */
.bsf-hero-description {
    font-size: clamp(0.95rem, 1.18vw, 1.12rem);
    line-height: 1.55;
    color: var(--bsf-text-light);
    max-width: 640px;
    margin: 0 auto 1.25rem auto; /* Separación ajustada */
    text-align: center;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.85);
    font-weight: 300;
}

/* Botones de Acción (CTA) - Tamaño Optimizado y Compacto */
.bsf-hero-cta-group {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Botón Principal "COMENZAR" */
.bsf-btn-primary {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 2rem;
    border-radius: 4px;
    overflow: hidden;
    text-decoration: none;
    box-shadow: 0 8px 25px rgba(255, 59, 0, 0.35);
    transition: transform var(--bsf-transition-fast), box-shadow var(--bsf-transition-fast);
}

.bsf-btn-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #ff4d1a 0%, #ff2a00 100%);
    transition: filter var(--bsf-transition-fast);
}

.bsf-btn-glare {
    position: absolute;
    top: 0;
    left: -120%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transform: skewX(-25deg);
    transition: left 0.6s ease;
}

.bsf-btn-primary:hover .bsf-btn-glare {
    left: 180%;
}

.bsf-btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 12px 35px rgba(255, 59, 0, 0.55);
}

.bsf-btn-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.bsf-btn-text {
    font-family: var(--bsf-font-subheading);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: #fff;
    text-transform: uppercase;
}

.bsf-btn-icon {
    color: #fff;
    transition: transform var(--bsf-transition-fast);
}

.bsf-btn-primary:hover .bsf-btn-icon {
    transform: translateX(4px);
}

/* Botón Secundario "INICIAR SESIÓN" */
.bsf-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.8rem;
    border-radius: 4px;
    background: rgba(13, 15, 20, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    transition: all var(--bsf-transition-fast);
}

.bsf-btn-sec-text {
    font-family: var(--bsf-font-subheading);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--bsf-text-white);
}

.bsf-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    color: #fff;
    transform: translateY(-2px);
}

/* ==============================================================================
   PÁGINAS DE AUTENTICACIÓN (LOGIN & REGISTRO)
   ============================================================================== */
.bsf-auth-page {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 1.5rem 2.5rem 1.5rem;
    position: relative;
    background-color: var(--bsf-bg);
    overflow-y: auto;
}

.bsf-auth-bg-ambient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 80% 20%, rgba(255, 59, 0, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 20% 80%, rgba(255, 183, 3, 0.06) 0%, transparent 45%),
        #07080a;
    z-index: 1;
    pointer-events: none;
}

.bsf-auth-card {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 480px;
    background: rgba(13, 15, 20, 0.92);
    border: 1px solid var(--bsf-border-accent);
    border-radius: 8px;
    padding: 2.5rem 2.2rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(16px);
    animation: authCardIn 0.5s var(--bsf-ease-power);
}

@keyframes authCardIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.bsf-auth-card-header {
    text-align: center;
    margin-bottom: 2rem;
}

.bsf-auth-logo {
    height: 44px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    margin: 0 auto 1.2rem auto;
    display: block;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.6));
}

.bsf-auth-title {
    font-family: var(--bsf-font-heading);
    font-size: 2.4rem;
    letter-spacing: 1.5px;
    color: var(--bsf-text-white);
    text-transform: uppercase;
    line-height: 1;
    margin-bottom: 0.4rem;
}

.bsf-auth-subtitle {
    font-size: 0.92rem;
    color: var(--bsf-text-muted);
}

/* Formularios */
.bsf-form-group {
    margin-bottom: 1.25rem;
    text-align: left;
}

.bsf-form-label {
    display: block;
    font-family: var(--bsf-font-subheading);
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    color: var(--bsf-text-light);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
}

.bsf-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.bsf-input-icon {
    position: absolute;
    left: 1rem;
    color: var(--bsf-text-dim);
    pointer-events: none;
    transition: color var(--bsf-transition-fast);
}

.bsf-form-input {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 2.8rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--bsf-border-color);
    border-radius: 4px;
    color: var(--bsf-text-white);
    font-family: var(--bsf-font-body);
    font-size: 0.95rem;
    transition: all var(--bsf-transition-fast);
}

.bsf-form-input.has-toggle {
    padding-right: 2.8rem;
}

/* Botón Mostrar/Ocultar Contraseña (Ojito) */
.bsf-toggle-password {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: var(--bsf-text-dim);
    padding: 0.35rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 4px;
    transition: color var(--bsf-transition-fast), background-color var(--bsf-transition-fast);
    z-index: 5;
}

.bsf-toggle-password:hover {
    color: var(--bsf-accent);
    background: rgba(255, 59, 0, 0.1);
}

.bsf-eye-open,
.bsf-eye-closed {
    display: block;
    pointer-events: none;
}

.bsf-toggle-password.is-showing .bsf-eye-open {
    display: none;
}

.bsf-toggle-password:not(.is-showing) .bsf-eye-closed {
    display: none;
}

/* Alertas de Seguridad y Validación */
.bsf-alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    font-size: 0.88rem;
    line-height: 1.45;
    animation: alertFadeIn 0.3s ease-out;
}

@keyframes alertFadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.bsf-alert-danger {
    background: rgba(255, 40, 40, 0.12);
    border: 1px solid rgba(255, 60, 60, 0.45);
    color: #ffb8b8;
}

.bsf-alert-warning {
    background: rgba(255, 183, 3, 0.12);
    border: 1px solid rgba(255, 183, 3, 0.4);
    color: #ffe29a;
}

.bsf-alert-success {
    background: rgba(46, 213, 115, 0.12);
    border: 1px solid rgba(46, 213, 115, 0.4);
    color: #98ffc1;
}

.bsf-alert-icon {
    flex-shrink: 0;
    margin-top: 1px;
}

.bsf-form-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--bsf-accent);
    box-shadow: 0 0 14px var(--bsf-accent-glow);
}

.bsf-form-input:focus + .bsf-input-icon,
.bsf-input-wrapper:focus-within .bsf-input-icon {
    color: var(--bsf-accent);
}

.bsf-form-input::placeholder {
    color: var(--bsf-text-dim);
}

/* Opciones extras (Recordar sesión / Olvidé contraseña) */
.bsf-form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    font-size: 0.88rem;
}

.bsf-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--bsf-text-muted);
    cursor: pointer;
}

.bsf-checkbox-label input[type="checkbox"] {
    accent-color: var(--bsf-accent);
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.bsf-link-muted {
    color: var(--bsf-text-muted);
    transition: color var(--bsf-transition-fast);
}

.bsf-link-muted:hover {
    color: var(--bsf-accent);
    text-decoration: underline;
}

/* Botón Submit */
.bsf-btn-submit {
    width: 100%;
    padding: 0.85rem;
    background: var(--bsf-accent);
    border: 1px solid var(--bsf-accent);
    border-radius: 4px;
    color: #fff;
    font-family: var(--bsf-font-subheading);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    box-shadow: 0 8px 20px rgba(255, 59, 0, 0.35);
    transition: all var(--bsf-transition-fast);
}

.bsf-btn-submit:hover {
    background: var(--bsf-accent-hover);
    box-shadow: 0 10px 25px rgba(255, 59, 0, 0.55);
    transform: translateY(-2px);
}

/* Footer del Formulario */
.bsf-auth-card-footer {
    text-align: center;
    margin-top: 1.8rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--bsf-border-color);
    font-size: 0.9rem;
    color: var(--bsf-text-muted);
}

.bsf-link-accent {
    color: var(--bsf-accent);
    font-weight: 600;
    transition: color var(--bsf-transition-fast);
}

.bsf-link-accent:hover {
    color: #fff;
    text-decoration: underline;
}

/* ==============================================================================
   RESPONSIVIDAD & OPTIMIZACIÓN MULTIDISPOSITIVO (MÓVIL, TABLET, DESKTOP)
   ============================================================================== */

/* Tablets & Pantallas Medianas (<= 1024px) */
@media (max-width: 1024px) {
    .bsf-navbar {
        padding: 1.2rem 1.8rem;
    }

    .bsf-hero-content-container {
        padding: 2rem 1.8rem;
    }

    .bsf-hero-title {
        font-size: clamp(2.8rem, 6.5vw, 4.5rem);
    }

    .bsf-drawer-panel {
        max-width: 420px;
        padding: 2rem 2.2rem;
    }
}

/* Teléfonos Móviles (<= 768px) */
@media (max-width: 768px) {
    body.bsf-body {
        height: 100dvh;
        overflow: hidden;
    }

    .bsf-navbar {
        padding: 0.9rem 1.2rem;
    }

    .bsf-logo-img {
        height: 38px;
        max-width: 160px;
    }

    .bsf-btn-header-cta {
        display: none;
    }

    .bsf-menu-toggle {
        padding: 0.45rem 0.85rem;
    }

    .bsf-toggle-label {
        font-size: 1.05rem;
    }

    .bsf-hero-content-container {
        padding: 1.5rem 1.2rem;
    }

    .bsf-hero-title {
        font-size: clamp(2.4rem, 10vw, 3.4rem);
        margin-bottom: 0.85rem;
    }

    .bsf-br-desktop {
        display: none;
    }

    .bsf-hero-description {
        font-size: 0.95rem;
        line-height: 1.5;
        margin-bottom: 1.5rem;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .bsf-hero-cta-group {
        gap: 0.75rem;
        width: 100%;
    }

    .bsf-btn-primary,
    .bsf-btn-secondary {
        width: 100%;
        padding: 0.75rem 1.25rem;
    }

    .bsf-btn-text,
    .bsf-btn-sec-text {
        font-size: 1.15rem;
    }

    .bsf-drawer-panel {
        max-width: 100%;
        padding: 1.8rem 1.5rem;
    }

    .bsf-nav-link {
        font-size: 1.8rem;
    }

    .bsf-drawer-body {
        margin: 1.5rem 0;
        gap: 1.5rem;
    }

    .bsf-drawer-auth-box {
        padding: 1rem;
    }

    .bsf-auth-buttons {
        grid-template-columns: 1fr;
    }

    .bsf-auth-card {
        padding: 2rem 1.5rem;
    }
}

/* Pantallas Extra Pequeñas (<= 380px) */
@media (max-width: 380px) {
    .bsf-hero-title {
        font-size: 2.2rem;
    }

    .bsf-hero-description {
        -webkit-line-clamp: 2;
    }

    .bsf-logo-img {
        height: 32px;
        max-width: 130px;
    }
}

/* ==============================================================================
   CURSOR PERSONALIZADO ATHLETIC POWER (SOLO PARA COMPUTADORAS / MOUSE)
   ============================================================================== */
@media (hover: hover) and (pointer: fine) {
    body.has-custom-cursor,
    body.has-custom-cursor a,
    body.has-custom-cursor button,
    body.has-custom-cursor input,
    body.has-custom-cursor label,
    body.has-custom-cursor [role="button"] {
        cursor: none !important;
    }

    .bsf-cursor-dot {
        position: fixed;
        top: 0;
        left: 0;
        width: 8px;
        height: 8px;
        background-color: var(--bsf-accent);
        border-radius: 50%;
        pointer-events: none;
        z-index: 999999;
        transform: translate(-50%, -50%);
        transition: width 0.2s var(--bsf-ease-power), 
                    height 0.2s var(--bsf-ease-power), 
                    background-color 0.2s, 
                    box-shadow 0.2s,
                    opacity 0.2s;
        box-shadow: 0 0 12px var(--bsf-accent-glow);
        opacity: 0;
    }

    .bsf-cursor-ring {
        position: fixed;
        top: 0;
        left: 0;
        width: 34px;
        height: 34px;
        border: 1.5px solid rgba(255, 59, 0, 0.6);
        border-radius: 50%;
        pointer-events: none;
        z-index: 999998;
        transform: translate(-50%, -50%);
        transition: width 0.25s var(--bsf-ease-power), 
                    height 0.25s var(--bsf-ease-power), 
                    border-color 0.2s, 
                    background-color 0.2s, 
                    box-shadow 0.2s,
                    opacity 0.2s;
        opacity: 0;
    }

    /* Estado visible cuando el puntero está dentro de la ventana */
    body.bsf-cursor-active .bsf-cursor-dot,
    body.bsf-cursor-active .bsf-cursor-ring {
        opacity: 1;
    }

    /* Estado Hover sobre botones, enlaces y campos interactivos */
    body.bsf-cursor-hover .bsf-cursor-ring {
        width: 52px;
        height: 52px;
        border-color: var(--bsf-accent);
        background-color: rgba(255, 59, 0, 0.14);
        box-shadow: 0 0 20px var(--bsf-accent-glow);
    }

    body.bsf-cursor-hover .bsf-cursor-dot {
        width: 10px;
        height: 10px;
        background-color: #ffffff;
        box-shadow: 0 0 14px #ffffff;
    }

    /* Estado Click / Impacto */
    body.bsf-cursor-clicked .bsf-cursor-ring {
        width: 24px;
        height: 24px;
        border-color: #ffffff;
        background-color: rgba(255, 255, 255, 0.25);
    }

    body.bsf-cursor-clicked .bsf-cursor-dot {
        transform: translate(-50%, -50%) scale(0.8);
    }
}

/* ==============================================================================
   CRÉDITO SUTIL LATERAL (CLOOST.NET)
   ============================================================================== */
.bsf-credits-tag {
    position: absolute;
    bottom: 2.2rem;
    left: 2.5rem;
    z-index: 25;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--bsf-font-subheading);
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 1.8px;
    color: var(--bsf-text-dim);
    text-transform: uppercase;
    opacity: 0.4;
    transition: opacity var(--bsf-transition-fast), transform var(--bsf-transition-fast);
    padding-bottom: env(safe-area-inset-bottom, 0px);
}

.bsf-credits-tag::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 1.5px;
    background-color: var(--bsf-accent);
    border-radius: 1px;
    transition: width var(--bsf-transition-fast), background-color var(--bsf-transition-fast);
}

.bsf-credits-prefix {
    color: var(--bsf-text-dim);
}

.bsf-credits-author {
    color: var(--bsf-text-light);
    text-decoration: none;
    font-weight: 700;
    transition: color var(--bsf-transition-fast), text-shadow var(--bsf-transition-fast);
}

.bsf-credits-tag:hover {
    opacity: 0.95;
    transform: translateX(3px);
}

.bsf-credits-tag:hover::before {
    width: 24px;
    background-color: #ffffff;
}

.bsf-credits-tag:hover .bsf-credits-author {
    color: var(--bsf-accent);
    text-shadow: 0 0 12px var(--bsf-accent-glow);
}

@media (max-width: 1024px) {
    .bsf-credits-tag {
        bottom: 1.6rem;
        left: 1.8rem;
    }
}

@media (max-width: 768px) {
    .bsf-credits-tag {
        bottom: 0.65rem;
        left: 50%;
        transform: translateX(-50%);
        font-size: 0.78rem;
        letter-spacing: 1.2px;
        opacity: 0.35;
        white-space: nowrap;
    }

    .bsf-credits-tag:hover {
        transform: translateX(-50%);
    }
}