* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background:
        linear-gradient(135deg, rgba(34, 197, 94, 0.05) 0%, rgba(22, 163, 74, 0.03) 25%, transparent 50%),
        linear-gradient(225deg, rgba(21, 128, 61, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 30% 40%, rgba(34, 197, 94, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(22, 163, 74, 0.06) 0%, transparent 50%),
        linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 60%, #0f0f0f 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
}

/* Animated background particles - mesma animação do painel */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 90% 70%, rgba(34, 197, 94, 0.01) 0%, transparent 70%),
        radial-gradient(circle at 10% 90%, rgba(22, 163, 74, 0.015) 0%, transparent 60%);
    animation: float 20s ease-in-out infinite;
    z-index: -1;
}

/* Adicionar um segundo layer de fundo animado */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        linear-gradient(45deg, transparent 0%, rgba(34, 197, 94, 0.02) 50%, transparent 100%),
        linear-gradient(-45deg, transparent 0%, rgba(22, 163, 74, 0.015) 50%, transparent 100%);
    animation: float 25s ease-in-out infinite reverse;
    z-index: -1;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 50%, #15803d 100%);
    color: white;
    padding: 40px 30px 30px;
    text-align: center;
}

.login-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-header .subtitle {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 15px;
    font-weight: 400;
}

.login-header .description {
    font-size: 0.9rem;
    opacity: 0.8;
    font-weight: 300;
}

.login-content {
    padding: 40px 30px;
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
}

.login-form {
    margin-bottom: 30px;
}

.google-login-btn {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid rgba(34, 197, 94, 0.3);
    border-radius: 12px;
    background: linear-gradient(135deg, #2a2a2a 0%, #3a3a3a 100%);
    color: #e0e0e0;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.google-login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s;
}

.google-login-btn:hover {
    border-color: #22c55e;
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: #000;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.4);
    transform: translateY(-1px);
}

.google-login-btn:hover::before {
    left: 100%;
}

.google-login-btn:active {
    transform: translateY(0);
}

.google-icon {
    flex-shrink: 0;
}

.login-footer {
    text-align: center;
    color: #94a3b8;
    font-size: 0.85rem;
    line-height: 1.4;
}

.message {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    text-align: center;
}

.message.error {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.message.success {
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.message.info {
    background: rgba(59, 130, 246, 0.1);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Responsividade */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .login-header {
        padding: 30px 20px 25px;
    }

    .login-header h1 {
        font-size: 2rem;
    }

    .login-content {
        padding: 30px 20px;
    }

    .google-login-btn {
        padding: 14px 16px;
        font-size: 0.9rem;
    }
}

/* Loading state */
.google-login-btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.google-login-btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid #22c55e;
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 10px;
}

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