/* =========================================================
   SISTEMA DE DISEÑO GLOBAL - BOLETRACK
   Identidad Premium | Oscuro, Dinámico, Deportivo
   ========================================================= */

/* Importar tipografía moderna desde Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap');

/* =========================================================
   1. VARIABLES GLOBALES (El ADN de la marca BoleTrack)
   ========================================================= */
:root {
    /* 🎨 PALETA DE COLORES (BoleTrack Dark & Charcoal) */
    --bt-primario: #0092EC;
    --bt-primario-hover: #164091;
    --bt-acento: #CAF0FF;
    --bt-secundario: #ffffff;
    --bt-fondo: #F2F4F7;
    --bt-fondo-oscuro: #164091;

    --bt-texto-oscuro: #3A3A3A;
    --bt-texto-base: #3A3A3A;
    --bt-texto-claro: #ffffff;
    --bt-texto-mutado: #71717a;

    /* Colores de Acento (para badges, estados) */
    --bt-verde: #16a34a;
    --bt-verde-bg: #f0fdf4;
    --bt-alerta: #d97706;
    --bt-alerta-bg: #fffbeb;
    --bt-error: #dc2626;
    --bt-error-bg: #fef2f2;

    /* 🖋️ TIPOGRAFÍA */
    --bt-fuente: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* 🧱 ESTRUCTURA */
    --bt-borde-radio: 12px;
    --bt-borde-radio-lg: 20px;
    --bt-borde-radio-full: 9999px;
    --bt-sombra-suave: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --bt-sombra-hover: 0 12px 20px -4px rgba(0, 0, 0, 0.12), 0 4px 6px -2px rgba(0, 0, 0, 0.06);
    --bt-sombra-primario: 0 4px 14px 0 rgba(45, 45, 45, 0.25);
    --bt-borde-ligero: 1px solid #e4e4e7;
    --bt-borde-color: #e4e4e7;
}

/* =========================================================
   2. REGLAS BASE
   ========================================================= */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--bt-fuente);
    background-color: var(--bt-fondo);
    color: var(--bt-texto-base);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--bt-texto-oscuro);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

a {
    color: var(--bt-primario);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--bt-primario-hover);
}

/* =========================================================
   3. NAVBAR / CABECERA
   ========================================================= */
.bt-navbar {
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0 2.5rem;
    height: 72px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: var(--bt-borde-ligero);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.bt-navbar .bt-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    color: var(--bt-texto-oscuro);
    text-decoration: none;
}

.bt-navbar .bt-logo img {
    height: 38px;
    width: auto;
}

.bt-navbar nav a {
    color: var(--bt-texto-base);
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.bt-navbar nav a:hover {
    color: var(--bt-primario);
}

/* =========================================================
   4. BOTONES
   ========================================================= */
.bt-btn {
    padding: 0.65rem 1.4rem;
    border: none;
    border-radius: var(--bt-borde-radio);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    font-family: var(--bt-fuente);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    line-height: 1;
    text-decoration: none;
}

/* Botón Primario - Grafito BoleTrack */
.bt-btn-primario {
    background-color: var(--bt-primario);
    color: var(--bt-texto-claro);
    box-shadow: var(--bt-sombra-primario);
}

.bt-btn-primario:hover {
    background-color: var(--bt-primario-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(45, 45, 45, 0.35);
    color: var(--bt-texto-claro);
}

.bt-btn-primario:active {
    transform: translateY(0);
}

/* Botón Secundario - Outline */
.bt-btn-secundario {
    background-color: var(--bt-secundario);
    color: var(--bt-texto-oscuro);
    border: var(--bt-borde-ligero);
    box-shadow: var(--bt-sombra-suave);
}

.bt-btn-secundario:hover {
    background-color: #f4f4f5;
    border-color: #a1a1aa;
    color: var(--bt-texto-oscuro);
}

/* Botón Ghost (solo outline oscuro) */
.bt-btn-ghost {
    background-color: transparent;
    color: var(--bt-primario);
    border: 2px solid var(--bt-primario);
}

.bt-btn-ghost:hover {
    background-color: var(--bt-primario);
    color: var(--bt-texto-claro);
}

/* Tamaños */
.bt-btn-sm { padding: 0.45rem 1rem; font-size: 0.8rem; }
.bt-btn-lg { padding: 0.9rem 2rem; font-size: 1rem; border-radius: var(--bt-borde-radio-lg); }
.bt-btn-full { width: 100%; }
.bt-btn-pill { border-radius: var(--bt-borde-radio-full); }

/* =========================================================
   5. TARJETAS
   ========================================================= */
.bt-card {
    background-color: var(--bt-secundario);
    border-radius: var(--bt-borde-radio-lg);
    padding: 1.75rem;
    box-shadow: var(--bt-sombra-suave);
    border: var(--bt-borde-ligero);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.bt-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--bt-sombra-hover);
}

.bt-card-header {
    margin-bottom: 1.25rem;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--bt-texto-oscuro);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

/* Card sin hover */
.bt-card-static {
    background-color: var(--bt-secundario);
    border-radius: var(--bt-borde-radio-lg);
    padding: 1.75rem;
    box-shadow: var(--bt-sombra-suave);
    border: var(--bt-borde-ligero);
}

/* =========================================================
   6. TABLAS
   ========================================================= */
.bt-tabla-contenedor {
    width: 100%;
    overflow-x: auto;
    background: var(--bt-secundario);
    border-radius: var(--bt-borde-radio-lg);
    box-shadow: var(--bt-sombra-suave);
    border: var(--bt-borde-ligero);
}

.bt-tabla {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.bt-tabla th {
    background-color: #fafafa;
    color: var(--bt-texto-mutado);
    padding: 1rem 1.25rem;
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: var(--bt-borde-ligero);
}

.bt-tabla td {
    padding: 1rem 1.25rem;
    border-bottom: var(--bt-borde-ligero);
    color: var(--bt-texto-base);
    font-size: 0.9rem;
}

.bt-tabla tr:last-child td {
    border-bottom: none;
}

.bt-tabla tr:hover td {
    background-color: #fafafa;
}

/* =========================================================
   7. BADGES / ETIQUETAS DE ESTADO
   ========================================================= */
.bt-badge {
    padding: 0.3rem 0.75rem;
    border-radius: var(--bt-borde-radio-full);
    font-size: 0.72rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.bt-badge-exito {
    background-color: var(--bt-verde-bg);
    color: var(--bt-verde);
    border: 1px solid #bbf7d0;
}

.bt-badge-alerta {
    background-color: var(--bt-alerta-bg);
    color: var(--bt-alerta);
    border: 1px solid #fde68a;
}

.bt-badge-error {
    background-color: var(--bt-error-bg);
    color: var(--bt-error);
    border: 1px solid #fecaca;
}

.bt-badge-neutro {
    background-color: #f4f4f5;
    color: var(--bt-texto-mutado);
    border: 1px solid var(--bt-borde-color);
}

/* =========================================================
   8. FORMULARIOS / INPUTS
   ========================================================= */
.bt-input {
    width: 100%;
    padding: 0.7rem 1rem;
    border: var(--bt-borde-ligero);
    border-radius: var(--bt-borde-radio);
    font-size: 0.9rem;
    font-family: var(--bt-fuente);
    color: var(--bt-texto-oscuro);
    background-color: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
}

.bt-input:focus {
    border-color: var(--bt-primario);
    box-shadow: 0 0 0 3px rgba(45, 45, 45, 0.1);
}

.bt-input::placeholder {
    color: var(--bt-texto-mutado);
}

.bt-label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--bt-texto-oscuro);
}

.bt-form-group {
    margin-bottom: 1.25rem;
}

/* Select */
.bt-select {
    width: 100%;
    padding: 0.7rem 1rem;
    border: var(--bt-borde-ligero);
    border-radius: var(--bt-borde-radio);
    font-size: 0.9rem;
    font-family: var(--bt-fuente);
    color: var(--bt-texto-oscuro);
    background-color: #fff;
    cursor: pointer;
    outline: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2371717a' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
}

.bt-select:focus {
    border-color: var(--bt-primario);
    box-shadow: 0 0 0 3px rgba(45, 45, 45, 0.1);
}

/* =========================================================
   9. HERO SECTION
   ========================================================= */
.bt-hero {
    background: linear-gradient(135deg, var(--bt-fondo-oscuro) 0%, #27272a 100%);
    color: var(--bt-texto-claro);
    padding: 5rem 2.5rem;
    position: relative;
    overflow: hidden;
}

.bt-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.bt-hero h1 {
    color: var(--bt-texto-claro);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    margin-bottom: 1.25rem;
}

.bt-hero p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.1rem;
    max-width: 600px;
    margin-bottom: 2rem;
}

/* =========================================================
   10. SECCIÓN CONTENEDOR
   ========================================================= */
.bt-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.bt-section {
    padding: 4rem 0;
}

.bt-section-header {
    margin-bottom: 2.5rem;
}

.bt-section-header h2 {
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--bt-texto-oscuro);
    margin-bottom: 0.5rem;
}

.bt-section-header p {
    color: var(--bt-texto-mutado);
    font-size: 1rem;
}

/* =========================================================
   11. SIDEBAR / PANEL ADMIN
   ========================================================= */
.bt-sidebar {
    width: 260px;
    min-height: 100vh;
    background-color: var(--bt-fondo-oscuro);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 50;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.bt-sidebar-logo {
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.bt-sidebar-logo img {
    height: 32px;
    filter: brightness(0) invert(1);
}

.bt-sidebar-logo span {
    font-size: 1.2rem;
    font-weight: 900;
    color: white;
    letter-spacing: -0.04em;
}

.bt-sidebar-nav {
    padding: 1rem 0.75rem;
    flex: 1;
}

.bt-sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.9rem;
    border-radius: var(--bt-borde-radio);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.15s ease;
    margin-bottom: 2px;
}

.bt-sidebar-nav a:hover {
    background-color: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.9);
}

.bt-sidebar-nav a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    font-weight: 600;
}

.bt-sidebar-nav .nav-icon {
    width: 18px;
    text-align: center;
    font-size: 0.95rem;
}

/* =========================================================
   12. LOADER / SPINNER
   ========================================================= */
.bt-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    gap: 1rem;
}

.bt-spinner {
    width: 44px;
    height: 44px;
    border: 3px solid var(--bt-borde-color);
    border-top-color: var(--bt-primario);
    border-radius: 50%;
    animation: bt-spin 0.7s linear infinite;
}

@keyframes bt-spin {
    to { transform: rotate(360deg); }
}

.bt-loader p {
    color: var(--bt-texto-mutado);
    font-size: 0.9rem;
    font-weight: 500;
}

/* =========================================================
   13. ANIMACIONES
   ========================================================= */
@keyframes bt-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes bt-slide-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes bt-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.bt-animate-fade { animation: bt-fade-in 0.4s ease-out; }
.bt-animate-slide-up { animation: bt-slide-up 0.5s ease-out forwards; }
.bt-animate-float { animation: bt-float 3s ease-in-out infinite; }

/* =========================================================
   14. UTILIDADES
   ========================================================= */
.bt-text-primario { color: var(--bt-primario); }
.bt-text-mutado { color: var(--bt-texto-mutado); }
.bt-bg-primario { background-color: var(--bt-primario); }
.bt-font-black { font-weight: 900; }
.bt-font-bold { font-weight: 700; }
.bt-rounded { border-radius: var(--bt-borde-radio); }
.bt-rounded-lg { border-radius: var(--bt-borde-radio-lg); }
.bt-rounded-full { border-radius: var(--bt-borde-radio-full); }
.bt-shadow { box-shadow: var(--bt-sombra-suave); }
.bt-border { border: var(--bt-borde-ligero); }
.bt-flex { display: flex; }
.bt-flex-center { display: flex; align-items: center; justify-content: center; }
.bt-gap-2 { gap: 0.5rem; }
.bt-gap-4 { gap: 1rem; }
.bt-mb-4 { margin-bottom: 1rem; }
.bt-mb-6 { margin-bottom: 1.5rem; }
.bt-mt-auto { margin-top: auto; }
.bt-w-full { width: 100%; }
.bt-text-center { text-align: center; }

/* COMPATIBILIDAD: Mantener clases tt- mapeadas a bt- */
:root {
    --tt-primario: var(--bt-primario);
    --tt-primario-hover: var(--bt-primario-hover);
    --tt-secundario: var(--bt-secundario);
    --tt-fondo: var(--bt-fondo);
    --tt-texto-oscuro: var(--bt-texto-oscuro);
    --tt-texto-base: var(--bt-texto-base);
    --tt-texto-claro: var(--bt-texto-claro);
    --tt-texto-mutado: var(--bt-texto-mutado);
    --tt-exito: var(--bt-verde);
    --tt-alerta: var(--bt-alerta);
    --tt-error: var(--bt-error);
    --tt-fuente: var(--bt-fuente);
    --tt-borde-radio: var(--bt-borde-radio);
    --tt-sombra-suave: var(--bt-sombra-suave);
    --tt-sombra-hover: var(--bt-sombra-hover);
    --tt-borde-ligero: var(--bt-borde-ligero);
}

/* =========================================================
   15. RESPONSIVE
   ========================================================= */
@media (max-width: 768px) {
    .bt-navbar {
        padding: 0 1rem;
    }

    .bt-sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .bt-sidebar.open {
        transform: translateX(0);
    }

    .bt-hero {
        padding: 3rem 1.25rem;
    }

    .bt-container {
        padding: 0 1rem;
    }
}