:root {
    --bg-dark: #030712;
    --bg-card: #111827;
    --primary-gold: #D4AF37;
    --primary-green: #10B981;
    --text-main: #F9FAFB;
    --text-muted: #9CA3AF;
    --border: #1F2937;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }

body { background-color: var(--bg-dark); color: var(--text-main); height: 100vh; overflow: hidden; }

/* Control de Vistas (SPA) */
.view { display: none; height: 100%; width: 100%; animation: fadeIn 0.4s ease; }
.view.active { display: block; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Diseño Login */
#login-view { display: flex; justify-content: center; align-items: center; background: radial-gradient(circle at center, #111827, #030712); }
.login-box { background: rgba(3,7,18,0.8); border: 1px solid var(--border); padding: 3rem; border-radius: 8px; width: 100%; max-width: 450px; text-align: center; box-shadow: 0 20px 40px rgba(0,0,0,0.5); backdrop-filter: blur(10px); }
.logo { height: 40px; margin-bottom: 1.5rem; filter: brightness(0) invert(1); }
.login-box h2 { font-weight: 800; margin-bottom: 0.5rem; }
.login-box p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 2rem; }
.input-group { text-align: left; margin-bottom: 1.5rem; }
.input-group label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--text-muted); margin-bottom: 0.5rem; text-transform: uppercase; }
.input-group input { width: 100%; padding: 1rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: 4px; color: white; transition: border 0.3s; }
.input-group input:focus { outline: none; border-color: var(--primary-gold); }
.btn-primary { width: 100%; padding: 1rem; background: var(--primary-gold); border: none; border-radius: 4px; font-weight: 800; text-transform: uppercase; cursor: pointer; transition: 0.3s; }
.btn-primary:hover { background: #F59E0B; }
.error-msg { color: #EF4444; font-size: 0.85rem; margin-top: 1rem; display: none; }

/* Diseño Dashboard */
#dashboard-view { overflow-y: auto; }
.dash-header { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem 5vw; background: var(--bg-card); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.logo-small { height: 25px; filter: brightness(0) invert(1); margin-right: 10px; vertical-align: middle; }
.user-menu { display: flex; align-items: center; gap: 15px; }
.user-name { font-weight: 600; font-size: 0.9rem; }
.role-badge { background: rgba(212, 175, 55, 0.2); color: var(--primary-gold); padding: 4px 8px; border-radius: 4px; font-size: 0.75rem; font-weight: 800; text-transform: uppercase; }
.btn-logout { background: transparent; border: 1px solid var(--border); color: var(--text-muted); padding: 0.5rem 1rem; border-radius: 4px; cursor: pointer; font-size: 0.8rem; transition: 0.3s; }
.btn-logout:hover { color: white; border-color: white; }

.dash-content { padding: 3rem 5vw; max-width: 1200px; margin: 0 auto; }
.welcome-section { margin-bottom: 3rem; border-bottom: 1px solid var(--border); padding-bottom: 2rem; }
.welcome-section h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 0.5rem; }

/* Tarjetas Dinámicas */
.data-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 2rem; }
.data-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 2rem; border-top: 4px solid var(--primary-gold); }
.data-card.green-theme { border-top-color: var(--primary-green); }
.data-card h3 { font-size: 1.2rem; margin-bottom: 1.5rem; color: var(--text-muted); text-transform: uppercase; }
.data-row { display: flex; justify-content: space-between; margin-bottom: 1rem; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }
.data-value { font-weight: 800; font-size: 1.1rem; }
.btn-download { display: inline-block; width: 100%; text-align: center; margin-top: 1.5rem; padding: 0.8rem; border: 1px solid var(--border); color: white; text-decoration: none; border-radius: 4px; transition: 0.3s; }
.btn-download:hover { background: var(--text-main); color: var(--bg-dark); }