/* ===========================================
   BACKGROUND EFFECTS - Grid MACAM BRASIL
   Padrão geométrico sutil em cinza
   =========================================== */

.ml-bg-grid {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

/* Grid lines - cinza sutil */
.ml-bg-grid__lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(119, 119, 119, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(119, 119, 119, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: ml-grid-move 30s linear infinite;
}

@keyframes ml-grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(40px, 40px); }
}

/* ========================================
   ORBS - Círculos suaves de fundo
   ======================================== */

.ml-bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: ml-orb-float 20s ease-in-out infinite;
}

.ml-bg-orb--1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(119, 119, 119, 0.2), transparent 70%);
    top: -15%;
    right: -10%;
}

.ml-bg-orb--2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.15), transparent 70%);
    bottom: -10%;
    left: -10%;
    animation-delay: -10s;
}

.ml-bg-orb--3 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(237, 237, 237, 0.3), transparent 70%);
    top: 40%;
    left: 30%;
    animation-delay: -5s;
}

@keyframes ml-orb-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(20px, -20px) scale(1.03); }
    66% { transform: translate(-15px, 15px) scale(0.97); }
}

/* ========================================
   GRADIENT OVERLAY
   ======================================== */

.ml-bg-gradient {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: linear-gradient(
        135deg,
        rgba(237, 237, 237, 0.5) 0%,
        transparent 50%,
        rgba(119, 119, 119, 0.1) 100%
    );
}

/* ========================================
   LOGIN PAGE SPECIFIC
   ======================================== */

.ml-bg-dark {
    background-color: var(--ml-primary);
}

.ml-bg-dark .ml-bg-grid__lines {
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
}

.ml-bg-dark .ml-bg-orb--1 {
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05), transparent 70%);
}

.ml-bg-dark .ml-bg-orb--2 {
    background: radial-gradient(circle, rgba(119, 119, 119, 0.1), transparent 70%);
}

/* ========================================
   ACESSIBILIDADE
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    .ml-bg-grid__lines,
    .ml-bg-orb {
        animation: none;
    }
}

/* Ocultar efeitos em telas pequenas para performance */
@media (max-width: 639px) {
    .ml-bg-orb {
        display: none;
    }
    
    .ml-bg-grid__lines {
        animation: none;
    }
}