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

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #0a0a0a;
    position: relative;
    overflow: hidden;
}

.animated-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.gradient-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    animation: moveSphere 20s infinite ease-in-out;
}

.sphere-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(45deg, #0052cc, #4c8bf5); /* Gradiente azul oscuro a azul claro */
    top: -300px;
    left: -300px;
    animation-delay: -5s;
}

.sphere-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(45deg, #3a65c8, #7db9f6); /* Gradiente azul medianoche a azul celeste */
    bottom: -250px;
    right: -250px;
    animation-delay: -2s;
}

.sphere-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(45deg, #0061f2, #6db4f7); /* Gradiente azul royal a azul claro */
    top: 50%;
    left: 30%;
    animation-delay: -8s;
}


@keyframes moveSphere {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }
    25% {
        transform: translate(100px, 50px) rotate(90deg) scale(1.1);
    }
    50% {
        transform: translate(50px, 100px) rotate(180deg) scale(1);
    }
    75% {
        transform: translate(-50px, 50px) rotate(270deg) scale(0.9);
    }
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    animation: floatParticle 8s infinite linear;
}

@keyframes floatParticle {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}

.login-container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 440px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    padding: 3rem;
    color: white;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    transform: translateY(20px);
    opacity: 0;
    animation: slideIn 0.6s ease-out forwards;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(
        to right,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    transform: skewX(-15deg);
    transition: 0.5s;
}

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

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

.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(45deg, #fff, #ccc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-header p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    font-size: 1rem;
    color: white;
    transition: all 0.3s ease;
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.05);
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.4);
    transition: color 0.3s ease;
}

.form-input:focus + .input-icon {
    color: white;
}

.submit-button {
    width: 100%;
    padding: 1rem;
    background: white;
    color: black;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.submit-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to right,
        transparent,
        rgba(255, 255, 255, 0.8),
        transparent
    );
    transition: 0.5s;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.submit-button:hover::before {
    left: 100%;
}

.social-login {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}

.social-button {
    width: 50px;
    height: 50px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    color: white;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.social-button::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(100%);
    transition: 0.3s ease;
}

.social-button:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.3);
}

.social-button:hover::before {
    transform: translateY(0);
}

.divider {
    display: flex;
    align-items: center;
    margin: 2rem 0;
    color: rgba(255, 255, 255, 0.4);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.divider span {
    padding: 0 1rem;
    font-size: 0.9rem;
}

.additional-options {
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

.additional-options a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.additional-options a:hover {
    opacity: 0.8;
}

.error-message {
    color: #ff4477;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: none;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes ripple {
    to {
        width: 300px;
        height: 300px;
        opacity: 0;
    }
}

@media (max-width: 480px) {
    .login-container {
        margin: 1rem;
        padding: 2rem;
    }

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